./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1af9610c3f2ac44e456633c84d2e8d0495857443026005d5daf994731366c726 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:34:48,759 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:34:48,821 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 01:34:48,826 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:34:48,827 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:34:48,852 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:34:48,852 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:34:48,853 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:34:48,854 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:34:48,854 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:34:48,855 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:34:48,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:34:48,856 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:34:48,856 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:34:48,857 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:34:48,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:34:48,858 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:34:48,859 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:34:48,859 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:34:48,860 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:34:48,860 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:34:48,861 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:34:48,862 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:34:48,862 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:34:48,862 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 01:34:48,863 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:34:48,863 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:34:48,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:34:48,864 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:34:48,865 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:34:48,865 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:34:48,866 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:34:48,866 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:34:48,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:34:48,866 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:34:48,867 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:34:48,867 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:34:48,867 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:34:48,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:34:48,867 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:34:48,867 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:34:48,868 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:34:48,868 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:34:48,868 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:34:48,868 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1af9610c3f2ac44e456633c84d2e8d0495857443026005d5daf994731366c726 [2023-11-29 01:34:49,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:34:49,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:34:49,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:34:49,115 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:34:49,115 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:34:49,116 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound10.c [2023-11-29 01:34:51,823 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:34:51,969 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:34:51,969 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound10.c [2023-11-29 01:34:51,975 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/data/7fe9d205b/7d8f848007634b33bae4c84b9202dafa/FLAGcd78ca9bc [2023-11-29 01:34:51,986 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/data/7fe9d205b/7d8f848007634b33bae4c84b9202dafa [2023-11-29 01:34:51,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:34:51,990 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:34:51,991 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:34:51,991 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:34:51,995 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:34:51,996 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:34:51" (1/1) ... [2023-11-29 01:34:51,997 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ee0dd5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:34:51, skipping insertion in model container [2023-11-29 01:34:51,997 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:34:51" (1/1) ... [2023-11-29 01:34:52,021 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:34:52,190 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:34:52,199 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:34:52,220 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:34:52,231 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:34:52,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:34:52 WrapperNode [2023-11-29 01:34:52,231 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:34:52,232 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:34:52,232 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:34:52,233 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:34:52,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:34:52" (1/1) ... [2023-11-29 01:34:52,245 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:34:52" (1/1) ... [2023-11-29 01:34:52,270 INFO L138 Inliner]: procedures = 14, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 149 [2023-11-29 01:34:52,271 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:34:52,271 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:34:52,271 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:34:52,272 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:34:52,281 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:34:52" (1/1) ... [2023-11-29 01:34:52,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:34:52" (1/1) ... [2023-11-29 01:34:52,283 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:34:52" (1/1) ... [2023-11-29 01:34:52,296 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 01:34:52,297 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:34:52" (1/1) ... [2023-11-29 01:34:52,297 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:34:52" (1/1) ... [2023-11-29 01:34:52,301 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:34:52" (1/1) ... [2023-11-29 01:34:52,304 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:34:52" (1/1) ... [2023-11-29 01:34:52,306 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:34:52" (1/1) ... [2023-11-29 01:34:52,306 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:34:52" (1/1) ... [2023-11-29 01:34:52,308 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:34:52,309 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:34:52,309 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:34:52,309 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:34:52,310 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:34:52" (1/1) ... [2023-11-29 01:34:52,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:34:52,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:34:52,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:34:52,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:34:52,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:34:52,370 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 01:34:52,370 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 01:34:52,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:34:52,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:34:52,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:34:52,370 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 01:34:52,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 01:34:52,427 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:34:52,429 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:34:52,821 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:34:52,847 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:34:52,847 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 01:34:52,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:34:52 BoogieIcfgContainer [2023-11-29 01:34:52,848 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:34:52,851 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:34:52,851 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:34:52,870 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:34:52,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:34:51" (1/3) ... [2023-11-29 01:34:52,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c2f4d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:34:52, skipping insertion in model container [2023-11-29 01:34:52,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:34:52" (2/3) ... [2023-11-29 01:34:52,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c2f4d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:34:52, skipping insertion in model container [2023-11-29 01:34:52,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:34:52" (3/3) ... [2023-11-29 01:34:52,873 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd2-ll_valuebound10.c [2023-11-29 01:34:52,888 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:34:52,888 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2023-11-29 01:34:52,938 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:34:52,945 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@577bf36a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:34:52,945 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2023-11-29 01:34:52,950 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 79 states have (on average 1.9113924050632911) internal successors, (151), 144 states have internal predecessors, (151), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:34:52,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 01:34:52,958 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:34:52,958 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:34:52,959 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:34:52,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:34:52,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1634057786, now seen corresponding path program 1 times [2023-11-29 01:34:52,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:34:52,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733183141] [2023-11-29 01:34:52,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:34:52,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:34:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:34:53,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:34:53,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733183141] [2023-11-29 01:34:53,095 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:34:53,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370327400] [2023-11-29 01:34:53,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:34:53,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:34:53,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:34:53,101 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:34:53,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:34:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:34:53,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 01:34:53,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:34:53,194 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 01:34:53,194 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:34:53,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370327400] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:34:53,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:34:53,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:34:53,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830451129] [2023-11-29 01:34:53,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:34:53,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:34:53,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:34:53,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:34:53,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:34:53,231 INFO L87 Difference]: Start difference. First operand has 158 states, 79 states have (on average 1.9113924050632911) internal successors, (151), 144 states have internal predecessors, (151), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:34:53,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:34:53,269 INFO L93 Difference]: Finished difference Result 313 states and 359 transitions. [2023-11-29 01:34:53,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:34:53,272 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2023-11-29 01:34:53,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:34:53,281 INFO L225 Difference]: With dead ends: 313 [2023-11-29 01:34:53,281 INFO L226 Difference]: Without dead ends: 154 [2023-11-29 01:34:53,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:34:53,289 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:34:53,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 166 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:34:53,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-11-29 01:34:53,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2023-11-29 01:34:53,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 78 states have (on average 1.8205128205128205) internal successors, (142), 141 states have internal predecessors, (142), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 01:34:53,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 164 transitions. [2023-11-29 01:34:53,339 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 164 transitions. Word has length 24 [2023-11-29 01:34:53,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:34:53,339 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 164 transitions. [2023-11-29 01:34:53,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:34:53,340 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 164 transitions. [2023-11-29 01:34:53,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 01:34:53,341 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:34:53,341 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:34:53,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:34:53,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 01:34:53,544 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:34:53,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:34:53,545 INFO L85 PathProgramCache]: Analyzing trace with hash 385715966, now seen corresponding path program 1 times [2023-11-29 01:34:53,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:34:53,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161092443] [2023-11-29 01:34:53,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:34:53,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:34:53,568 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:34:53,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [107854931] [2023-11-29 01:34:53,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:34:53,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:34:53,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:34:53,573 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:34:53,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:34:53,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:34:53,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 01:34:53,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:34:53,749 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 01:34:53,749 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:34:53,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:34:53,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161092443] [2023-11-29 01:34:53,750 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:34:53,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107854931] [2023-11-29 01:34:53,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107854931] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:34:53,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:34:53,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:34:53,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485823163] [2023-11-29 01:34:53,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:34:53,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:34:53,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:34:53,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:34:53,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:34:53,753 INFO L87 Difference]: Start difference. First operand 154 states and 164 transitions. Second operand has 7 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 01:34:54,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:34:54,060 INFO L93 Difference]: Finished difference Result 154 states and 164 transitions. [2023-11-29 01:34:54,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:34:54,060 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 24 [2023-11-29 01:34:54,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:34:54,063 INFO L225 Difference]: With dead ends: 154 [2023-11-29 01:34:54,063 INFO L226 Difference]: Without dead ends: 152 [2023-11-29 01:34:54,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:34:54,065 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 133 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:34:54,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 251 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:34:54,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-29 01:34:54,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2023-11-29 01:34:54,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 78 states have (on average 1.794871794871795) internal successors, (140), 139 states have internal predecessors, (140), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 01:34:54,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 162 transitions. [2023-11-29 01:34:54,082 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 162 transitions. Word has length 24 [2023-11-29 01:34:54,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:34:54,083 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 162 transitions. [2023-11-29 01:34:54,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 01:34:54,084 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 162 transitions. [2023-11-29 01:34:54,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 01:34:54,085 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:34:54,085 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:34:54,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 01:34:54,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:34:54,291 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:34:54,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:34:54,292 INFO L85 PathProgramCache]: Analyzing trace with hash -927706900, now seen corresponding path program 1 times [2023-11-29 01:34:54,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:34:54,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373076689] [2023-11-29 01:34:54,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:34:54,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:34:54,307 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:34:54,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1232088454] [2023-11-29 01:34:54,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:34:54,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:34:54,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:34:54,309 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:34:54,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 01:34:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:34:54,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 01:34:54,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:34:54,496 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 01:34:54,496 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:34:54,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:34:54,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373076689] [2023-11-29 01:34:54,672 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:34:54,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232088454] [2023-11-29 01:34:54,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232088454] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:34:54,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:34:54,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 01:34:54,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299534444] [2023-11-29 01:34:54,673 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:34:54,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:34:54,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:34:54,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:34:54,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:34:54,674 INFO L87 Difference]: Start difference. First operand 152 states and 162 transitions. Second operand has 7 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 01:34:54,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:34:54,931 INFO L93 Difference]: Finished difference Result 152 states and 162 transitions. [2023-11-29 01:34:54,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:34:54,932 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2023-11-29 01:34:54,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:34:54,933 INFO L225 Difference]: With dead ends: 152 [2023-11-29 01:34:54,933 INFO L226 Difference]: Without dead ends: 151 [2023-11-29 01:34:54,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:34:54,935 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 260 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:34:54,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 235 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:34:54,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-11-29 01:34:54,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2023-11-29 01:34:54,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 78 states have (on average 1.7820512820512822) internal successors, (139), 138 states have internal predecessors, (139), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 01:34:54,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 161 transitions. [2023-11-29 01:34:54,949 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 161 transitions. Word has length 25 [2023-11-29 01:34:54,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:34:54,949 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 161 transitions. [2023-11-29 01:34:54,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 01:34:54,950 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 161 transitions. [2023-11-29 01:34:54,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 01:34:54,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:34:54,951 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:34:54,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 01:34:55,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:34:55,152 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:34:55,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:34:55,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1810640804, now seen corresponding path program 1 times [2023-11-29 01:34:55,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:34:55,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562602703] [2023-11-29 01:34:55,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:34:55,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:34:55,170 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:34:55,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1179597478] [2023-11-29 01:34:55,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:34:55,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:34:55,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:34:55,172 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:34:55,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 01:34:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:34:55,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:34:55,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:34:55,268 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 01:34:55,269 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:34:55,350 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 01:34:55,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:34:55,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562602703] [2023-11-29 01:34:55,351 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:34:55,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179597478] [2023-11-29 01:34:55,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179597478] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:34:55,352 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:34:55,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2023-11-29 01:34:55,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987904245] [2023-11-29 01:34:55,352 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:34:55,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:34:55,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:34:55,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:34:55,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:34:55,354 INFO L87 Difference]: Start difference. First operand 151 states and 161 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:34:55,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:34:55,598 INFO L93 Difference]: Finished difference Result 268 states and 284 transitions. [2023-11-29 01:34:55,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:34:55,599 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2023-11-29 01:34:55,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:34:55,600 INFO L225 Difference]: With dead ends: 268 [2023-11-29 01:34:55,601 INFO L226 Difference]: Without dead ends: 238 [2023-11-29 01:34:55,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:34:55,602 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 301 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:34:55,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 250 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:34:55,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-11-29 01:34:55,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 199. [2023-11-29 01:34:55,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 122 states have (on average 1.8278688524590163) internal successors, (223), 181 states have internal predecessors, (223), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 01:34:55,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 253 transitions. [2023-11-29 01:34:55,622 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 253 transitions. Word has length 40 [2023-11-29 01:34:55,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:34:55,623 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 253 transitions. [2023-11-29 01:34:55,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:34:55,623 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 253 transitions. [2023-11-29 01:34:55,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 01:34:55,624 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:34:55,625 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:34:55,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 01:34:55,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:34:55,829 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:34:55,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:34:55,829 INFO L85 PathProgramCache]: Analyzing trace with hash 295288537, now seen corresponding path program 1 times [2023-11-29 01:34:55,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:34:55,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130554917] [2023-11-29 01:34:55,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:34:55,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:34:55,844 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:34:55,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1856745466] [2023-11-29 01:34:55,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:34:55,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:34:55,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:34:55,846 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:34:55,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 01:34:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:34:55,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:34:55,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:34:55,969 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 01:34:55,969 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:34:56,077 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 01:34:56,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:34:56,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130554917] [2023-11-29 01:34:56,078 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:34:56,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856745466] [2023-11-29 01:34:56,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856745466] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:34:56,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:34:56,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-11-29 01:34:56,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094264371] [2023-11-29 01:34:56,079 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:34:56,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:34:56,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:34:56,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:34:56,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:34:56,081 INFO L87 Difference]: Start difference. First operand 199 states and 253 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 01:34:56,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:34:56,603 INFO L93 Difference]: Finished difference Result 241 states and 257 transitions. [2023-11-29 01:34:56,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:34:56,603 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 41 [2023-11-29 01:34:56,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:34:56,606 INFO L225 Difference]: With dead ends: 241 [2023-11-29 01:34:56,606 INFO L226 Difference]: Without dead ends: 239 [2023-11-29 01:34:56,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:34:56,607 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 643 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:34:56,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 371 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:34:56,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2023-11-29 01:34:56,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 201. [2023-11-29 01:34:56,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 124 states have (on average 1.7983870967741935) internal successors, (223), 183 states have internal predecessors, (223), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 01:34:56,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 253 transitions. [2023-11-29 01:34:56,626 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 253 transitions. Word has length 41 [2023-11-29 01:34:56,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:34:56,627 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 253 transitions. [2023-11-29 01:34:56,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 01:34:56,627 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 253 transitions. [2023-11-29 01:34:56,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 01:34:56,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:34:56,629 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:34:56,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 01:34:56,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:34:56,833 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:34:56,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:34:56,833 INFO L85 PathProgramCache]: Analyzing trace with hash 564010130, now seen corresponding path program 1 times [2023-11-29 01:34:56,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:34:56,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591542173] [2023-11-29 01:34:56,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:34:56,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:34:56,846 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:34:56,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [274651069] [2023-11-29 01:34:56,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:34:56,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:34:56,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:34:56,848 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:34:56,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 01:34:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:34:56,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:34:56,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:34:56,955 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 01:34:56,956 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:34:57,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:34:57,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591542173] [2023-11-29 01:34:57,028 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:34:57,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274651069] [2023-11-29 01:34:57,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274651069] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:34:57,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:34:57,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 01:34:57,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595955426] [2023-11-29 01:34:57,029 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:34:57,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:34:57,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:34:57,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:34:57,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:34:57,031 INFO L87 Difference]: Start difference. First operand 201 states and 253 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:34:57,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:34:57,388 INFO L93 Difference]: Finished difference Result 322 states and 343 transitions. [2023-11-29 01:34:57,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:34:57,389 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2023-11-29 01:34:57,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:34:57,391 INFO L225 Difference]: With dead ends: 322 [2023-11-29 01:34:57,391 INFO L226 Difference]: Without dead ends: 320 [2023-11-29 01:34:57,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:34:57,393 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 479 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:34:57,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 349 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:34:57,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2023-11-29 01:34:57,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 247. [2023-11-29 01:34:57,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 166 states have (on average 1.8132530120481927) internal successors, (301), 225 states have internal predecessors, (301), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 01:34:57,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 339 transitions. [2023-11-29 01:34:57,411 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 339 transitions. Word has length 42 [2023-11-29 01:34:57,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:34:57,411 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 339 transitions. [2023-11-29 01:34:57,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:34:57,412 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 339 transitions. [2023-11-29 01:34:57,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 01:34:57,413 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:34:57,413 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:34:57,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 01:34:57,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:34:57,619 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:34:57,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:34:57,619 INFO L85 PathProgramCache]: Analyzing trace with hash 304444923, now seen corresponding path program 1 times [2023-11-29 01:34:57,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:34:57,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330942534] [2023-11-29 01:34:57,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:34:57,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:34:57,628 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:34:57,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [76751579] [2023-11-29 01:34:57,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:34:57,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:34:57,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:34:57,629 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:34:57,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 01:34:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:34:57,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:34:57,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:34:57,739 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 01:34:57,739 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:34:58,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:34:58,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330942534] [2023-11-29 01:34:58,140 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:34:58,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76751579] [2023-11-29 01:34:58,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76751579] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:34:58,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:34:58,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 01:34:58,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239947250] [2023-11-29 01:34:58,141 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:34:58,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:34:58,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:34:58,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:34:58,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:34:58,143 INFO L87 Difference]: Start difference. First operand 247 states and 339 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 01:34:58,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:34:58,674 INFO L93 Difference]: Finished difference Result 364 states and 385 transitions. [2023-11-29 01:34:58,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:34:58,675 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 43 [2023-11-29 01:34:58,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:34:58,678 INFO L225 Difference]: With dead ends: 364 [2023-11-29 01:34:58,678 INFO L226 Difference]: Without dead ends: 363 [2023-11-29 01:34:58,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:34:58,679 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 627 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:34:58,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 474 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:34:58,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-11-29 01:34:58,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 247. [2023-11-29 01:34:58,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 166 states have (on average 1.8072289156626506) internal successors, (300), 225 states have internal predecessors, (300), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 01:34:58,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 338 transitions. [2023-11-29 01:34:58,697 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 338 transitions. Word has length 43 [2023-11-29 01:34:58,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:34:58,697 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 338 transitions. [2023-11-29 01:34:58,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 01:34:58,698 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 338 transitions. [2023-11-29 01:34:58,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 01:34:58,699 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:34:58,699 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:34:58,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 01:34:58,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:34:58,904 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:34:58,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:34:58,905 INFO L85 PathProgramCache]: Analyzing trace with hash 847858100, now seen corresponding path program 1 times [2023-11-29 01:34:58,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:34:58,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566542104] [2023-11-29 01:34:58,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:34:58,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:34:58,916 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:34:58,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [911606739] [2023-11-29 01:34:58,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:34:58,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:34:58,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:34:58,918 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:34:58,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 01:34:58,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:34:58,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 01:34:58,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:34:59,094 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 01:34:59,094 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:34:59,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:34:59,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566542104] [2023-11-29 01:34:59,182 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:34:59,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911606739] [2023-11-29 01:34:59,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911606739] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:34:59,183 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:34:59,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 01:34:59,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799447422] [2023-11-29 01:34:59,183 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:34:59,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:34:59,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:34:59,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:34:59,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:34:59,185 INFO L87 Difference]: Start difference. First operand 247 states and 338 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 01:35:00,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:00,349 INFO L93 Difference]: Finished difference Result 320 states and 340 transitions. [2023-11-29 01:35:00,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:35:00,349 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 44 [2023-11-29 01:35:00,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:00,352 INFO L225 Difference]: With dead ends: 320 [2023-11-29 01:35:00,352 INFO L226 Difference]: Without dead ends: 318 [2023-11-29 01:35:00,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:35:00,353 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 471 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:00,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 286 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 01:35:00,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2023-11-29 01:35:00,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 247. [2023-11-29 01:35:00,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 166 states have (on average 1.7951807228915662) internal successors, (298), 225 states have internal predecessors, (298), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 01:35:00,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 336 transitions. [2023-11-29 01:35:00,366 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 336 transitions. Word has length 44 [2023-11-29 01:35:00,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:00,366 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 336 transitions. [2023-11-29 01:35:00,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 01:35:00,367 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 336 transitions. [2023-11-29 01:35:00,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 01:35:00,368 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:00,368 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:00,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-29 01:35:00,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 01:35:00,569 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:00,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:00,569 INFO L85 PathProgramCache]: Analyzing trace with hash -251836423, now seen corresponding path program 1 times [2023-11-29 01:35:00,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:00,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62680678] [2023-11-29 01:35:00,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:00,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:00,580 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:00,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [953846259] [2023-11-29 01:35:00,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:00,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:00,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:00,581 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:00,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 01:35:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:00,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:35:00,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:00,743 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 01:35:00,743 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:35:00,895 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 01:35:00,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:00,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62680678] [2023-11-29 01:35:00,896 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:00,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953846259] [2023-11-29 01:35:00,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953846259] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:35:00,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:35:00,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2023-11-29 01:35:00,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722057510] [2023-11-29 01:35:00,897 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:35:00,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:35:00,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:00,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:35:00,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:35:00,898 INFO L87 Difference]: Start difference. First operand 247 states and 336 transitions. Second operand has 10 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 01:35:03,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:03,172 INFO L93 Difference]: Finished difference Result 300 states and 355 transitions. [2023-11-29 01:35:03,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:35:03,173 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) Word has length 50 [2023-11-29 01:35:03,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:03,175 INFO L225 Difference]: With dead ends: 300 [2023-11-29 01:35:03,175 INFO L226 Difference]: Without dead ends: 299 [2023-11-29 01:35:03,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:35:03,176 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 585 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:03,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 498 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 01:35:03,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2023-11-29 01:35:03,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 252. [2023-11-29 01:35:03,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 170 states have (on average 1.7823529411764707) internal successors, (303), 229 states have internal predecessors, (303), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:35:03,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 343 transitions. [2023-11-29 01:35:03,193 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 343 transitions. Word has length 50 [2023-11-29 01:35:03,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:03,193 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 343 transitions. [2023-11-29 01:35:03,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 01:35:03,193 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 343 transitions. [2023-11-29 01:35:03,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 01:35:03,194 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:03,195 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:03,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 01:35:03,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:03,395 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:03,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:03,396 INFO L85 PathProgramCache]: Analyzing trace with hash 783005563, now seen corresponding path program 1 times [2023-11-29 01:35:03,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:03,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900435615] [2023-11-29 01:35:03,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:03,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:03,406 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:03,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [284317654] [2023-11-29 01:35:03,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:03,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:03,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:03,407 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:03,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 01:35:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:03,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:35:03,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:03,597 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 01:35:03,598 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:35:03,733 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 01:35:03,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:03,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900435615] [2023-11-29 01:35:03,734 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:03,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284317654] [2023-11-29 01:35:03,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284317654] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:35:03,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:35:03,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2023-11-29 01:35:03,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818408367] [2023-11-29 01:35:03,734 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:35:03,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:35:03,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:03,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:35:03,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:35:03,736 INFO L87 Difference]: Start difference. First operand 252 states and 343 transitions. Second operand has 10 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 01:35:05,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:05,616 INFO L93 Difference]: Finished difference Result 301 states and 354 transitions. [2023-11-29 01:35:05,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:35:05,616 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) Word has length 51 [2023-11-29 01:35:05,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:05,618 INFO L225 Difference]: With dead ends: 301 [2023-11-29 01:35:05,618 INFO L226 Difference]: Without dead ends: 300 [2023-11-29 01:35:05,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:35:05,619 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 417 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:05,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 435 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 01:35:05,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-11-29 01:35:05,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 253. [2023-11-29 01:35:05,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 171 states have (on average 1.7660818713450293) internal successors, (302), 230 states have internal predecessors, (302), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:35:05,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 342 transitions. [2023-11-29 01:35:05,633 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 342 transitions. Word has length 51 [2023-11-29 01:35:05,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:05,634 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 342 transitions. [2023-11-29 01:35:05,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 01:35:05,634 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 342 transitions. [2023-11-29 01:35:05,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 01:35:05,635 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:05,635 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:05,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 01:35:05,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 01:35:05,837 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:05,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:05,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1496631237, now seen corresponding path program 1 times [2023-11-29 01:35:05,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:05,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461322265] [2023-11-29 01:35:05,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:05,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:05,845 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:05,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1062261093] [2023-11-29 01:35:05,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:05,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:05,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:05,846 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:05,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 01:35:05,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:05,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:35:05,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:05,952 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 01:35:05,952 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:35:06,060 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 01:35:06,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:06,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461322265] [2023-11-29 01:35:06,061 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:06,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062261093] [2023-11-29 01:35:06,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062261093] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:35:06,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:35:06,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 01:35:06,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176033190] [2023-11-29 01:35:06,061 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:35:06,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:35:06,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:06,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:35:06,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:35:06,063 INFO L87 Difference]: Start difference. First operand 253 states and 342 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 01:35:07,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:07,273 INFO L93 Difference]: Finished difference Result 293 states and 345 transitions. [2023-11-29 01:35:07,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:35:07,273 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 52 [2023-11-29 01:35:07,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:07,275 INFO L225 Difference]: With dead ends: 293 [2023-11-29 01:35:07,275 INFO L226 Difference]: Without dead ends: 292 [2023-11-29 01:35:07,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:35:07,275 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 478 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:07,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 342 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 01:35:07,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-11-29 01:35:07,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 254. [2023-11-29 01:35:07,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 172 states have (on average 1.75) internal successors, (301), 231 states have internal predecessors, (301), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:35:07,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 341 transitions. [2023-11-29 01:35:07,287 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 341 transitions. Word has length 52 [2023-11-29 01:35:07,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:07,288 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 341 transitions. [2023-11-29 01:35:07,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 01:35:07,288 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 341 transitions. [2023-11-29 01:35:07,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 01:35:07,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:07,289 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:07,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 01:35:07,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:07,493 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:07,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:07,493 INFO L85 PathProgramCache]: Analyzing trace with hash 849071997, now seen corresponding path program 1 times [2023-11-29 01:35:07,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:07,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727390511] [2023-11-29 01:35:07,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:07,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:07,502 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:07,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [198583205] [2023-11-29 01:35:07,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:07,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:07,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:07,503 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:07,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 01:35:07,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:07,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:35:07,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:07,657 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 01:35:07,657 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:35:07,773 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 01:35:07,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:07,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727390511] [2023-11-29 01:35:07,773 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:07,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198583205] [2023-11-29 01:35:07,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198583205] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:35:07,773 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:35:07,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 01:35:07,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788035107] [2023-11-29 01:35:07,774 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:35:07,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:35:07,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:07,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:35:07,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:35:07,775 INFO L87 Difference]: Start difference. First operand 254 states and 341 transitions. Second operand has 9 states, 8 states have (on average 5.75) internal successors, (46), 9 states have internal predecessors, (46), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 01:35:08,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:08,064 INFO L93 Difference]: Finished difference Result 293 states and 344 transitions. [2023-11-29 01:35:08,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:35:08,064 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 9 states have internal predecessors, (46), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) Word has length 53 [2023-11-29 01:35:08,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:08,066 INFO L225 Difference]: With dead ends: 293 [2023-11-29 01:35:08,066 INFO L226 Difference]: Without dead ends: 292 [2023-11-29 01:35:08,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:35:08,067 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 533 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:08,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 437 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:35:08,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-11-29 01:35:08,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 255. [2023-11-29 01:35:08,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 173 states have (on average 1.7341040462427746) internal successors, (300), 232 states have internal predecessors, (300), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:35:08,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 340 transitions. [2023-11-29 01:35:08,078 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 340 transitions. Word has length 53 [2023-11-29 01:35:08,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:08,078 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 340 transitions. [2023-11-29 01:35:08,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 9 states have internal predecessors, (46), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 01:35:08,078 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 340 transitions. [2023-11-29 01:35:08,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 01:35:08,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:08,079 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:08,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 01:35:08,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:08,280 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:08,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:08,280 INFO L85 PathProgramCache]: Analyzing trace with hash 551428221, now seen corresponding path program 1 times [2023-11-29 01:35:08,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:08,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642032487] [2023-11-29 01:35:08,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:08,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:08,287 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:08,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [143129090] [2023-11-29 01:35:08,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:08,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:08,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:08,289 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:08,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 01:35:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:08,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 01:35:08,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:08,455 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 01:35:08,455 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:35:08,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:08,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642032487] [2023-11-29 01:35:08,535 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:08,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143129090] [2023-11-29 01:35:08,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143129090] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:35:08,535 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:35:08,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 01:35:08,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789107014] [2023-11-29 01:35:08,536 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:35:08,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:35:08,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:08,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:35:08,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:35:08,537 INFO L87 Difference]: Start difference. First operand 255 states and 340 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 01:35:08,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:08,919 INFO L93 Difference]: Finished difference Result 289 states and 341 transitions. [2023-11-29 01:35:08,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:35:08,919 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 54 [2023-11-29 01:35:08,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:08,922 INFO L225 Difference]: With dead ends: 289 [2023-11-29 01:35:08,922 INFO L226 Difference]: Without dead ends: 288 [2023-11-29 01:35:08,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:35:08,923 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 261 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:08,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 354 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:35:08,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2023-11-29 01:35:08,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 255. [2023-11-29 01:35:08,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 173 states have (on average 1.722543352601156) internal successors, (298), 232 states have internal predecessors, (298), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:35:08,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 338 transitions. [2023-11-29 01:35:08,940 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 338 transitions. Word has length 54 [2023-11-29 01:35:08,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:08,940 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 338 transitions. [2023-11-29 01:35:08,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 01:35:08,940 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 338 transitions. [2023-11-29 01:35:08,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 01:35:08,941 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:08,941 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:08,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-29 01:35:09,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:09,142 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:09,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:09,142 INFO L85 PathProgramCache]: Analyzing trace with hash -85594241, now seen corresponding path program 1 times [2023-11-29 01:35:09,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:09,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506128910] [2023-11-29 01:35:09,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:09,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:09,150 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:09,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [180696455] [2023-11-29 01:35:09,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:09,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:09,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:09,151 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:09,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 01:35:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:09,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:35:09,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:09,355 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 01:35:09,356 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:35:09,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:09,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506128910] [2023-11-29 01:35:09,481 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:09,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180696455] [2023-11-29 01:35:09,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180696455] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:35:09,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:35:09,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 01:35:09,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123617018] [2023-11-29 01:35:09,482 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:35:09,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:35:09,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:09,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:35:09,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:35:09,483 INFO L87 Difference]: Start difference. First operand 255 states and 338 transitions. Second operand has 8 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 01:35:12,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:12,205 INFO L93 Difference]: Finished difference Result 296 states and 347 transitions. [2023-11-29 01:35:12,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:35:12,206 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 55 [2023-11-29 01:35:12,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:12,208 INFO L225 Difference]: With dead ends: 296 [2023-11-29 01:35:12,208 INFO L226 Difference]: Without dead ends: 295 [2023-11-29 01:35:12,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:35:12,209 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 404 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:12,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 400 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-29 01:35:12,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2023-11-29 01:35:12,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 255. [2023-11-29 01:35:12,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 173 states have (on average 1.7109826589595376) internal successors, (296), 232 states have internal predecessors, (296), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:35:12,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 336 transitions. [2023-11-29 01:35:12,233 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 336 transitions. Word has length 55 [2023-11-29 01:35:12,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:12,233 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 336 transitions. [2023-11-29 01:35:12,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 01:35:12,234 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 336 transitions. [2023-11-29 01:35:12,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 01:35:12,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:12,234 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:12,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 01:35:12,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 01:35:12,435 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:12,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:12,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1585765133, now seen corresponding path program 1 times [2023-11-29 01:35:12,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:12,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092272141] [2023-11-29 01:35:12,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:12,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:12,443 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:12,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1227710405] [2023-11-29 01:35:12,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:12,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:12,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:12,444 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:12,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 01:35:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:12,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:35:12,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:12,620 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 01:35:12,620 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:35:12,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:12,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092272141] [2023-11-29 01:35:12,741 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:12,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227710405] [2023-11-29 01:35:12,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227710405] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:35:12,741 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:35:12,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 01:35:12,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612899359] [2023-11-29 01:35:12,742 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:35:12,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:35:12,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:12,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:35:12,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:35:12,743 INFO L87 Difference]: Start difference. First operand 255 states and 336 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 01:35:13,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:13,643 INFO L93 Difference]: Finished difference Result 293 states and 345 transitions. [2023-11-29 01:35:13,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:35:13,644 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 61 [2023-11-29 01:35:13,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:13,646 INFO L225 Difference]: With dead ends: 293 [2023-11-29 01:35:13,646 INFO L226 Difference]: Without dead ends: 291 [2023-11-29 01:35:13,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:35:13,647 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 391 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:13,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 306 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 01:35:13,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-11-29 01:35:13,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 255. [2023-11-29 01:35:13,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 173 states have (on average 1.6878612716763006) internal successors, (292), 232 states have internal predecessors, (292), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:35:13,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 332 transitions. [2023-11-29 01:35:13,663 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 332 transitions. Word has length 61 [2023-11-29 01:35:13,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:13,663 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 332 transitions. [2023-11-29 01:35:13,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 01:35:13,663 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 332 transitions. [2023-11-29 01:35:13,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 01:35:13,664 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:13,664 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:13,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 01:35:13,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:13,865 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:13,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:13,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1914078964, now seen corresponding path program 1 times [2023-11-29 01:35:13,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:13,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181105239] [2023-11-29 01:35:13,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:13,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:13,875 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:13,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [906423722] [2023-11-29 01:35:13,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:13,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:13,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:13,876 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:13,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 01:35:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:13,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:35:13,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:14,089 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 01:35:14,089 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:35:14,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:14,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181105239] [2023-11-29 01:35:14,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:14,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906423722] [2023-11-29 01:35:14,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906423722] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:35:14,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:35:14,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 01:35:14,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172390254] [2023-11-29 01:35:14,205 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:35:14,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:35:14,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:14,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:35:14,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:35:14,206 INFO L87 Difference]: Start difference. First operand 255 states and 332 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 01:35:15,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:15,007 INFO L93 Difference]: Finished difference Result 293 states and 341 transitions. [2023-11-29 01:35:15,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:35:15,007 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 62 [2023-11-29 01:35:15,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:15,009 INFO L225 Difference]: With dead ends: 293 [2023-11-29 01:35:15,009 INFO L226 Difference]: Without dead ends: 291 [2023-11-29 01:35:15,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:35:15,010 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 192 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:15,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 344 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 01:35:15,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-11-29 01:35:15,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 255. [2023-11-29 01:35:15,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 173 states have (on average 1.6647398843930636) internal successors, (288), 232 states have internal predecessors, (288), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:35:15,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 328 transitions. [2023-11-29 01:35:15,025 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 328 transitions. Word has length 62 [2023-11-29 01:35:15,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:15,026 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 328 transitions. [2023-11-29 01:35:15,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 01:35:15,026 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 328 transitions. [2023-11-29 01:35:15,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 01:35:15,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:15,027 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:15,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 01:35:15,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:15,227 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:15,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:15,228 INFO L85 PathProgramCache]: Analyzing trace with hash -793094161, now seen corresponding path program 1 times [2023-11-29 01:35:15,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:15,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379180124] [2023-11-29 01:35:15,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:15,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:15,234 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:15,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1818239546] [2023-11-29 01:35:15,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:15,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:15,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:15,235 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:15,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 01:35:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:15,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:35:15,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:15,359 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-29 01:35:15,359 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:35:15,488 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-29 01:35:15,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:15,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379180124] [2023-11-29 01:35:15,488 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:15,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818239546] [2023-11-29 01:35:15,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818239546] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:35:15,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:35:15,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 01:35:15,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619414507] [2023-11-29 01:35:15,489 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:35:15,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:35:15,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:15,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:35:15,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:35:15,490 INFO L87 Difference]: Start difference. First operand 255 states and 328 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 01:35:17,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:17,450 INFO L93 Difference]: Finished difference Result 311 states and 357 transitions. [2023-11-29 01:35:17,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:35:17,450 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 63 [2023-11-29 01:35:17,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:17,452 INFO L225 Difference]: With dead ends: 311 [2023-11-29 01:35:17,452 INFO L226 Difference]: Without dead ends: 309 [2023-11-29 01:35:17,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:35:17,453 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 421 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:17,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 427 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 01:35:17,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2023-11-29 01:35:17,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 260. [2023-11-29 01:35:17,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 178 states have (on average 1.6404494382022472) internal successors, (292), 236 states have internal predecessors, (292), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 01:35:17,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 334 transitions. [2023-11-29 01:35:17,464 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 334 transitions. Word has length 63 [2023-11-29 01:35:17,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:17,464 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 334 transitions. [2023-11-29 01:35:17,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 01:35:17,465 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 334 transitions. [2023-11-29 01:35:17,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 01:35:17,465 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:17,465 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:17,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 01:35:17,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:17,666 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:17,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:17,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1183884886, now seen corresponding path program 1 times [2023-11-29 01:35:17,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:17,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675124826] [2023-11-29 01:35:17,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:17,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:17,673 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:17,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [774582066] [2023-11-29 01:35:17,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:17,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:17,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:17,675 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:17,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 01:35:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:17,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:35:17,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:17,853 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-29 01:35:17,853 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:35:17,984 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-29 01:35:17,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:17,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675124826] [2023-11-29 01:35:17,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:17,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774582066] [2023-11-29 01:35:17,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774582066] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:35:17,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:35:17,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 01:35:17,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827305234] [2023-11-29 01:35:17,985 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:35:17,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:35:17,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:17,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:35:17,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:35:17,986 INFO L87 Difference]: Start difference. First operand 260 states and 334 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 01:35:18,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:18,321 INFO L93 Difference]: Finished difference Result 309 states and 353 transitions. [2023-11-29 01:35:18,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:35:18,322 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 64 [2023-11-29 01:35:18,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:18,324 INFO L225 Difference]: With dead ends: 309 [2023-11-29 01:35:18,324 INFO L226 Difference]: Without dead ends: 307 [2023-11-29 01:35:18,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:35:18,325 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 354 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:18,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 287 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:35:18,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2023-11-29 01:35:18,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 260. [2023-11-29 01:35:18,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 179 states have (on average 1.6089385474860336) internal successors, (288), 236 states have internal predecessors, (288), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 01:35:18,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 330 transitions. [2023-11-29 01:35:18,339 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 330 transitions. Word has length 64 [2023-11-29 01:35:18,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:18,339 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 330 transitions. [2023-11-29 01:35:18,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 01:35:18,339 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 330 transitions. [2023-11-29 01:35:18,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 01:35:18,340 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:18,340 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:18,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 01:35:18,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:18,540 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:18,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:18,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1954274095, now seen corresponding path program 1 times [2023-11-29 01:35:18,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:18,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896437296] [2023-11-29 01:35:18,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:18,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:18,549 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:18,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [366410488] [2023-11-29 01:35:18,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:18,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:18,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:18,551 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:18,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 01:35:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:18,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 01:35:18,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:18,865 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-29 01:35:18,865 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:35:27,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:27,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896437296] [2023-11-29 01:35:27,254 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:27,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366410488] [2023-11-29 01:35:27,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366410488] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:35:27,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:35:27,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 01:35:27,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780794917] [2023-11-29 01:35:27,255 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:35:27,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:35:27,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:27,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:35:27,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=76, Unknown=2, NotChecked=0, Total=110 [2023-11-29 01:35:27,256 INFO L87 Difference]: Start difference. First operand 260 states and 330 transitions. Second operand has 8 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 01:35:28,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:28,763 INFO L93 Difference]: Finished difference Result 292 states and 339 transitions. [2023-11-29 01:35:28,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:35:28,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 65 [2023-11-29 01:35:28,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:28,765 INFO L225 Difference]: With dead ends: 292 [2023-11-29 01:35:28,765 INFO L226 Difference]: Without dead ends: 291 [2023-11-29 01:35:28,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=36, Invalid=94, Unknown=2, NotChecked=0, Total=132 [2023-11-29 01:35:28,766 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 243 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:28,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 211 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 01:35:28,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-11-29 01:35:28,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 260. [2023-11-29 01:35:28,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 179 states have (on average 1.5977653631284916) internal successors, (286), 236 states have internal predecessors, (286), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 01:35:28,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 328 transitions. [2023-11-29 01:35:28,777 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 328 transitions. Word has length 65 [2023-11-29 01:35:28,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:28,777 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 328 transitions. [2023-11-29 01:35:28,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 01:35:28,777 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 328 transitions. [2023-11-29 01:35:28,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 01:35:28,778 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:28,778 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:28,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 01:35:28,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:28,978 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:28,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:28,979 INFO L85 PathProgramCache]: Analyzing trace with hash -452954696, now seen corresponding path program 1 times [2023-11-29 01:35:28,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:28,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59766088] [2023-11-29 01:35:28,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:28,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:28,986 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:28,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1057085980] [2023-11-29 01:35:28,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:28,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:28,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:28,988 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:28,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 01:35:29,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:29,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:35:29,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:29,258 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 01:35:29,258 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:35:29,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:29,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59766088] [2023-11-29 01:35:29,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:29,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057085980] [2023-11-29 01:35:29,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057085980] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:35:29,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:35:29,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 01:35:29,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719715478] [2023-11-29 01:35:29,617 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:35:29,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:35:29,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:29,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:35:29,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:35:29,618 INFO L87 Difference]: Start difference. First operand 260 states and 328 transitions. Second operand has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 01:35:30,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:30,751 INFO L93 Difference]: Finished difference Result 291 states and 337 transitions. [2023-11-29 01:35:30,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:35:30,751 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 66 [2023-11-29 01:35:30,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:30,752 INFO L225 Difference]: With dead ends: 291 [2023-11-29 01:35:30,753 INFO L226 Difference]: Without dead ends: 290 [2023-11-29 01:35:30,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:35:30,753 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 372 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:30,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 325 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 01:35:30,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2023-11-29 01:35:30,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 260. [2023-11-29 01:35:30,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 179 states have (on average 1.5865921787709498) internal successors, (284), 236 states have internal predecessors, (284), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 01:35:30,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 326 transitions. [2023-11-29 01:35:30,770 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 326 transitions. Word has length 66 [2023-11-29 01:35:30,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:30,771 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 326 transitions. [2023-11-29 01:35:30,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 01:35:30,771 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 326 transitions. [2023-11-29 01:35:30,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-29 01:35:30,772 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:30,772 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:30,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 01:35:30,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:30,974 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:30,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:30,974 INFO L85 PathProgramCache]: Analyzing trace with hash 449823759, now seen corresponding path program 1 times [2023-11-29 01:35:30,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:30,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641054215] [2023-11-29 01:35:30,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:30,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:30,981 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:30,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2046067712] [2023-11-29 01:35:30,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:30,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:30,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:30,982 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:30,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 01:35:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:31,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:35:31,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:31,055 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 01:35:31,055 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:35:31,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:31,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641054215] [2023-11-29 01:35:31,055 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:31,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046067712] [2023-11-29 01:35:31,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046067712] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:35:31,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:35:31,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:35:31,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046503450] [2023-11-29 01:35:31,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:35:31,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:35:31,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:31,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:35:31,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:35:31,057 INFO L87 Difference]: Start difference. First operand 260 states and 326 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 01:35:31,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:31,664 INFO L93 Difference]: Finished difference Result 290 states and 335 transitions. [2023-11-29 01:35:31,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:35:31,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 72 [2023-11-29 01:35:31,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:31,666 INFO L225 Difference]: With dead ends: 290 [2023-11-29 01:35:31,666 INFO L226 Difference]: Without dead ends: 286 [2023-11-29 01:35:31,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:35:31,667 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 51 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:31,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 223 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 01:35:31,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-11-29 01:35:31,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 263. [2023-11-29 01:35:31,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 182 states have (on average 1.554945054945055) internal successors, (283), 239 states have internal predecessors, (283), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 01:35:31,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 325 transitions. [2023-11-29 01:35:31,678 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 325 transitions. Word has length 72 [2023-11-29 01:35:31,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:31,679 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 325 transitions. [2023-11-29 01:35:31,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 01:35:31,679 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 325 transitions. [2023-11-29 01:35:31,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-29 01:35:31,679 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:31,679 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:31,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-29 01:35:31,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:31,880 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:31,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:31,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1511060975, now seen corresponding path program 1 times [2023-11-29 01:35:31,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:31,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170996665] [2023-11-29 01:35:31,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:31,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:31,888 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:31,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1626067196] [2023-11-29 01:35:31,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:31,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:31,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:31,889 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:31,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 01:35:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:31,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:35:31,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:32,048 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 01:35:32,048 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:35:32,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:32,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170996665] [2023-11-29 01:35:32,048 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:32,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626067196] [2023-11-29 01:35:32,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626067196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:35:32,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:35:32,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:35:32,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324562815] [2023-11-29 01:35:32,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:35:32,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:35:32,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:32,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:35:32,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:35:32,050 INFO L87 Difference]: Start difference. First operand 263 states and 325 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 01:35:32,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:32,149 INFO L93 Difference]: Finished difference Result 294 states and 337 transitions. [2023-11-29 01:35:32,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:35:32,150 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 74 [2023-11-29 01:35:32,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:32,152 INFO L225 Difference]: With dead ends: 294 [2023-11-29 01:35:32,152 INFO L226 Difference]: Without dead ends: 293 [2023-11-29 01:35:32,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:35:32,152 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 112 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:32,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 223 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:35:32,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-11-29 01:35:32,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 263. [2023-11-29 01:35:32,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 182 states have (on average 1.543956043956044) internal successors, (281), 239 states have internal predecessors, (281), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 01:35:32,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 323 transitions. [2023-11-29 01:35:32,164 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 323 transitions. Word has length 74 [2023-11-29 01:35:32,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:32,164 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 323 transitions. [2023-11-29 01:35:32,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 01:35:32,165 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 323 transitions. [2023-11-29 01:35:32,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 01:35:32,165 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:32,165 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:32,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 01:35:32,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:32,366 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:32,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:32,366 INFO L85 PathProgramCache]: Analyzing trace with hash 401750145, now seen corresponding path program 1 times [2023-11-29 01:35:32,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:32,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010986406] [2023-11-29 01:35:32,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:32,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:32,373 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:32,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1071551339] [2023-11-29 01:35:32,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:32,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:32,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:32,374 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:32,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 01:35:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:32,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:35:32,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:32,502 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-11-29 01:35:32,502 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:35:32,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:32,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010986406] [2023-11-29 01:35:32,502 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:32,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071551339] [2023-11-29 01:35:32,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071551339] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:35:32,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:35:32,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:35:32,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466111606] [2023-11-29 01:35:32,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:35:32,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:35:32,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:32,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:35:32,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:35:32,504 INFO L87 Difference]: Start difference. First operand 263 states and 323 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 01:35:32,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:32,659 INFO L93 Difference]: Finished difference Result 293 states and 335 transitions. [2023-11-29 01:35:32,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:35:32,659 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 75 [2023-11-29 01:35:32,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:32,661 INFO L225 Difference]: With dead ends: 293 [2023-11-29 01:35:32,661 INFO L226 Difference]: Without dead ends: 292 [2023-11-29 01:35:32,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:35:32,661 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 110 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:32,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 430 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:35:32,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-11-29 01:35:32,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 263. [2023-11-29 01:35:32,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 182 states have (on average 1.532967032967033) internal successors, (279), 239 states have internal predecessors, (279), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 01:35:32,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 321 transitions. [2023-11-29 01:35:32,673 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 321 transitions. Word has length 75 [2023-11-29 01:35:32,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:32,673 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 321 transitions. [2023-11-29 01:35:32,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 01:35:32,674 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 321 transitions. [2023-11-29 01:35:32,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 01:35:32,674 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:32,674 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:32,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 01:35:32,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 01:35:32,875 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:32,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:32,875 INFO L85 PathProgramCache]: Analyzing trace with hash -430647277, now seen corresponding path program 1 times [2023-11-29 01:35:32,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:32,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361883730] [2023-11-29 01:35:32,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:32,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:32,882 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:32,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [841131842] [2023-11-29 01:35:32,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:32,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:32,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:32,883 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:32,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 01:35:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:32,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:35:32,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:32,972 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 01:35:32,972 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:35:32,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:32,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361883730] [2023-11-29 01:35:32,972 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:32,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841131842] [2023-11-29 01:35:32,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841131842] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:35:32,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:35:32,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:35:32,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081268746] [2023-11-29 01:35:32,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:35:32,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:35:32,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:32,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:35:32,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:35:32,973 INFO L87 Difference]: Start difference. First operand 263 states and 321 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 01:35:33,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:33,581 INFO L93 Difference]: Finished difference Result 284 states and 325 transitions. [2023-11-29 01:35:33,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:35:33,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 76 [2023-11-29 01:35:33,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:33,583 INFO L225 Difference]: With dead ends: 284 [2023-11-29 01:35:33,583 INFO L226 Difference]: Without dead ends: 282 [2023-11-29 01:35:33,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:35:33,583 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 105 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:33,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 258 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 01:35:33,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-11-29 01:35:33,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 263. [2023-11-29 01:35:33,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 182 states have (on average 1.510989010989011) internal successors, (275), 239 states have internal predecessors, (275), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 01:35:33,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 317 transitions. [2023-11-29 01:35:33,596 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 317 transitions. Word has length 76 [2023-11-29 01:35:33,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:33,596 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 317 transitions. [2023-11-29 01:35:33,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 01:35:33,596 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 317 transitions. [2023-11-29 01:35:33,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 01:35:33,597 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:33,597 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:33,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 01:35:33,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 01:35:33,798 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:33,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:33,798 INFO L85 PathProgramCache]: Analyzing trace with hash -465163581, now seen corresponding path program 1 times [2023-11-29 01:35:33,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:33,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018122908] [2023-11-29 01:35:33,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:33,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:33,804 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:33,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1298360288] [2023-11-29 01:35:33,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:33,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:33,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:33,805 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:33,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 01:35:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:33,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:35:33,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:33,898 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 01:35:33,898 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:35:33,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:33,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018122908] [2023-11-29 01:35:33,898 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:33,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298360288] [2023-11-29 01:35:33,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298360288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:35:33,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:35:33,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:35:33,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801367484] [2023-11-29 01:35:33,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:35:33,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:35:33,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:33,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:35:33,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:35:33,900 INFO L87 Difference]: Start difference. First operand 263 states and 317 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 01:35:34,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:34,502 INFO L93 Difference]: Finished difference Result 282 states and 321 transitions. [2023-11-29 01:35:34,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:35:34,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 77 [2023-11-29 01:35:34,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:34,504 INFO L225 Difference]: With dead ends: 282 [2023-11-29 01:35:34,504 INFO L226 Difference]: Without dead ends: 280 [2023-11-29 01:35:34,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:35:34,505 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 100 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:34,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 259 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 01:35:34,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-11-29 01:35:34,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 263. [2023-11-29 01:35:34,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 182 states have (on average 1.489010989010989) internal successors, (271), 239 states have internal predecessors, (271), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 01:35:34,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 313 transitions. [2023-11-29 01:35:34,520 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 313 transitions. Word has length 77 [2023-11-29 01:35:34,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:34,521 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 313 transitions. [2023-11-29 01:35:34,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 01:35:34,521 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 313 transitions. [2023-11-29 01:35:34,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-29 01:35:34,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:34,521 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:34,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 01:35:34,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 01:35:34,722 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:34,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:34,722 INFO L85 PathProgramCache]: Analyzing trace with hash -57355895, now seen corresponding path program 1 times [2023-11-29 01:35:34,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:34,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484762049] [2023-11-29 01:35:34,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:34,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:34,736 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:34,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [512811189] [2023-11-29 01:35:34,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:34,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:34,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:34,737 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:34,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 01:35:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:34,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:35:34,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:35,026 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-11-29 01:35:35,026 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:35:35,152 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-11-29 01:35:35,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:35,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484762049] [2023-11-29 01:35:35,153 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:35,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512811189] [2023-11-29 01:35:35,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512811189] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:35:35,153 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:35:35,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2023-11-29 01:35:35,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377993901] [2023-11-29 01:35:35,153 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:35:35,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:35:35,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:35,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:35:35,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:35:35,155 INFO L87 Difference]: Start difference. First operand 263 states and 313 transitions. Second operand has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 01:35:36,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:36,329 INFO L93 Difference]: Finished difference Result 310 states and 343 transitions. [2023-11-29 01:35:36,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:35:36,329 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 83 [2023-11-29 01:35:36,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:36,331 INFO L225 Difference]: With dead ends: 310 [2023-11-29 01:35:36,331 INFO L226 Difference]: Without dead ends: 309 [2023-11-29 01:35:36,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 155 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:35:36,331 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 248 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:36,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 527 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 01:35:36,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2023-11-29 01:35:36,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 278. [2023-11-29 01:35:36,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 196 states have (on average 1.510204081632653) internal successors, (296), 253 states have internal predecessors, (296), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 01:35:36,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 340 transitions. [2023-11-29 01:35:36,344 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 340 transitions. Word has length 83 [2023-11-29 01:35:36,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:36,344 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 340 transitions. [2023-11-29 01:35:36,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 01:35:36,345 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 340 transitions. [2023-11-29 01:35:36,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 01:35:36,345 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:36,345 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:36,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 01:35:36,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 01:35:36,545 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:36,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:36,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1778032613, now seen corresponding path program 1 times [2023-11-29 01:35:36,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:36,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575876244] [2023-11-29 01:35:36,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:36,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:36,553 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:36,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2110586224] [2023-11-29 01:35:36,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:36,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:36,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:36,555 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:36,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 01:35:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:36,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:35:36,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:36,887 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 01:35:36,887 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:35:36,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:36,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575876244] [2023-11-29 01:35:36,888 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:36,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110586224] [2023-11-29 01:35:36,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110586224] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:35:36,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:35:36,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:35:36,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296008140] [2023-11-29 01:35:36,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:35:36,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:35:36,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:36,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:35:36,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:35:36,889 INFO L87 Difference]: Start difference. First operand 278 states and 340 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 01:35:37,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:37,702 INFO L93 Difference]: Finished difference Result 290 states and 340 transitions. [2023-11-29 01:35:37,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:35:37,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2023-11-29 01:35:37,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:37,705 INFO L225 Difference]: With dead ends: 290 [2023-11-29 01:35:37,705 INFO L226 Difference]: Without dead ends: 286 [2023-11-29 01:35:37,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:35:37,705 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 22 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:37,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 189 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 01:35:37,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-11-29 01:35:37,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 278. [2023-11-29 01:35:37,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 196 states have (on average 1.469387755102041) internal successors, (288), 253 states have internal predecessors, (288), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 01:35:37,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 332 transitions. [2023-11-29 01:35:37,724 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 332 transitions. Word has length 84 [2023-11-29 01:35:37,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:37,725 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 332 transitions. [2023-11-29 01:35:37,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 01:35:37,725 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 332 transitions. [2023-11-29 01:35:37,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-29 01:35:37,726 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:37,726 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:37,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 01:35:37,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 01:35:37,926 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:37,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:37,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1443943455, now seen corresponding path program 1 times [2023-11-29 01:35:37,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:37,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807286451] [2023-11-29 01:35:37,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:37,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:37,936 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:37,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1852245738] [2023-11-29 01:35:37,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:37,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:37,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:37,938 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:37,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 01:35:37,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:37,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 01:35:37,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:38,784 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-29 01:35:38,784 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:35:38,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:38,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807286451] [2023-11-29 01:35:38,933 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:38,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852245738] [2023-11-29 01:35:38,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852245738] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:35:38,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:35:38,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 01:35:38,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563565193] [2023-11-29 01:35:38,934 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:35:38,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 01:35:38,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:38,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 01:35:38,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:35:38,935 INFO L87 Difference]: Start difference. First operand 278 states and 332 transitions. Second operand has 11 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 01:35:40,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:40,751 INFO L93 Difference]: Finished difference Result 288 states and 334 transitions. [2023-11-29 01:35:40,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:35:40,752 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 88 [2023-11-29 01:35:40,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:40,753 INFO L225 Difference]: With dead ends: 288 [2023-11-29 01:35:40,754 INFO L226 Difference]: Without dead ends: 287 [2023-11-29 01:35:40,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:35:40,754 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 215 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:40,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 350 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 01:35:40,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-11-29 01:35:40,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 278. [2023-11-29 01:35:40,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 196 states have (on average 1.4591836734693877) internal successors, (286), 253 states have internal predecessors, (286), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 01:35:40,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 330 transitions. [2023-11-29 01:35:40,768 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 330 transitions. Word has length 88 [2023-11-29 01:35:40,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:40,768 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 330 transitions. [2023-11-29 01:35:40,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 01:35:40,768 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 330 transitions. [2023-11-29 01:35:40,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 01:35:40,769 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:40,769 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:40,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 01:35:40,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 01:35:40,969 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:40,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:40,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1812574287, now seen corresponding path program 1 times [2023-11-29 01:35:40,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:40,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191176828] [2023-11-29 01:35:40,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:40,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:40,979 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:40,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [741762618] [2023-11-29 01:35:40,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:40,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:40,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:40,981 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:40,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 01:35:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:41,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 01:35:41,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:46,088 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-29 01:35:46,089 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:35:47,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:47,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191176828] [2023-11-29 01:35:47,363 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:47,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741762618] [2023-11-29 01:35:47,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741762618] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:35:47,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:35:47,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 01:35:47,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710170921] [2023-11-29 01:35:47,363 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:35:47,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 01:35:47,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:47,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 01:35:47,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:35:47,365 INFO L87 Difference]: Start difference. First operand 278 states and 330 transitions. Second operand has 11 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 01:35:50,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:50,903 INFO L93 Difference]: Finished difference Result 287 states and 332 transitions. [2023-11-29 01:35:50,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:35:50,904 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 89 [2023-11-29 01:35:50,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:50,905 INFO L225 Difference]: With dead ends: 287 [2023-11-29 01:35:50,905 INFO L226 Difference]: Without dead ends: 286 [2023-11-29 01:35:50,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:35:50,906 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 199 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:50,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 490 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-29 01:35:50,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-11-29 01:35:50,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 278. [2023-11-29 01:35:50,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 196 states have (on average 1.4489795918367347) internal successors, (284), 253 states have internal predecessors, (284), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 01:35:50,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 328 transitions. [2023-11-29 01:35:50,920 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 328 transitions. Word has length 89 [2023-11-29 01:35:50,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:50,921 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 328 transitions. [2023-11-29 01:35:50,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 01:35:50,921 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 328 transitions. [2023-11-29 01:35:50,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 01:35:50,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:50,922 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:50,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 01:35:51,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 01:35:51,122 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:51,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:51,122 INFO L85 PathProgramCache]: Analyzing trace with hash 772495050, now seen corresponding path program 1 times [2023-11-29 01:35:51,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:51,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364332034] [2023-11-29 01:35:51,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:51,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:51,130 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:51,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [650720941] [2023-11-29 01:35:51,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:51,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:51,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:51,131 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:51,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 01:35:51,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:51,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:35:51,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:51,185 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 01:35:51,185 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:35:51,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:51,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364332034] [2023-11-29 01:35:51,186 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:51,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650720941] [2023-11-29 01:35:51,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650720941] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:35:51,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:35:51,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:35:51,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163908804] [2023-11-29 01:35:51,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:35:51,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:35:51,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:51,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:35:51,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:35:51,187 INFO L87 Difference]: Start difference. First operand 278 states and 328 transitions. Second operand has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-29 01:35:51,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:51,237 INFO L93 Difference]: Finished difference Result 278 states and 328 transitions. [2023-11-29 01:35:51,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:35:51,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 98 [2023-11-29 01:35:51,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:51,239 INFO L225 Difference]: With dead ends: 278 [2023-11-29 01:35:51,239 INFO L226 Difference]: Without dead ends: 277 [2023-11-29 01:35:51,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:35:51,240 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 43 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:51,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 238 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:35:51,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2023-11-29 01:35:51,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2023-11-29 01:35:51,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 196 states have (on average 1.433673469387755) internal successors, (281), 252 states have internal predecessors, (281), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 01:35:51,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 325 transitions. [2023-11-29 01:35:51,254 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 325 transitions. Word has length 98 [2023-11-29 01:35:51,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:51,254 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 325 transitions. [2023-11-29 01:35:51,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-29 01:35:51,254 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 325 transitions. [2023-11-29 01:35:51,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 01:35:51,255 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:51,255 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:51,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 01:35:51,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:51,455 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:51,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:51,455 INFO L85 PathProgramCache]: Analyzing trace with hash 963878354, now seen corresponding path program 1 times [2023-11-29 01:35:51,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:51,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602412743] [2023-11-29 01:35:51,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:51,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:51,467 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:51,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [502458768] [2023-11-29 01:35:51,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:51,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:51,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:51,468 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:51,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 01:35:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:51,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:35:51,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:51,600 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 01:35:51,600 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:35:51,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:51,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602412743] [2023-11-29 01:35:51,601 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:51,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502458768] [2023-11-29 01:35:51,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502458768] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:35:51,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:35:51,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:35:51,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558743409] [2023-11-29 01:35:51,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:35:51,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:35:51,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:51,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:35:51,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:35:51,602 INFO L87 Difference]: Start difference. First operand 277 states and 325 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 01:35:51,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:51,657 INFO L93 Difference]: Finished difference Result 286 states and 329 transitions. [2023-11-29 01:35:51,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:35:51,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2023-11-29 01:35:51,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:51,659 INFO L225 Difference]: With dead ends: 286 [2023-11-29 01:35:51,659 INFO L226 Difference]: Without dead ends: 285 [2023-11-29 01:35:51,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:35:51,660 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 14 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:51,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 424 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:35:51,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-11-29 01:35:51,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 278. [2023-11-29 01:35:51,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 197 states have (on average 1.4314720812182742) internal successors, (282), 253 states have internal predecessors, (282), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 01:35:51,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 326 transitions. [2023-11-29 01:35:51,674 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 326 transitions. Word has length 101 [2023-11-29 01:35:51,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:51,675 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 326 transitions. [2023-11-29 01:35:51,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 01:35:51,675 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 326 transitions. [2023-11-29 01:35:51,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-29 01:35:51,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:51,676 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:51,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 01:35:51,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:51,876 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:51,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:51,877 INFO L85 PathProgramCache]: Analyzing trace with hash -184541926, now seen corresponding path program 1 times [2023-11-29 01:35:51,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:51,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569595403] [2023-11-29 01:35:51,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:51,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:51,885 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:51,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [445288145] [2023-11-29 01:35:51,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:51,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:51,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:51,886 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:51,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 01:35:51,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:51,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:35:51,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:52,103 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 01:35:52,103 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:35:52,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:52,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569595403] [2023-11-29 01:35:52,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:52,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445288145] [2023-11-29 01:35:52,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445288145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:35:52,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:35:52,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:35:52,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68679583] [2023-11-29 01:35:52,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:35:52,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:35:52,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:52,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:35:52,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:35:52,105 INFO L87 Difference]: Start difference. First operand 278 states and 326 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 01:35:52,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:52,859 INFO L93 Difference]: Finished difference Result 285 states and 328 transitions. [2023-11-29 01:35:52,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:35:52,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 102 [2023-11-29 01:35:52,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:52,862 INFO L225 Difference]: With dead ends: 285 [2023-11-29 01:35:52,862 INFO L226 Difference]: Without dead ends: 284 [2023-11-29 01:35:52,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:35:52,862 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 13 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:52,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 305 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 01:35:52,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-11-29 01:35:52,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 279. [2023-11-29 01:35:52,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 198 states have (on average 1.4292929292929293) internal successors, (283), 254 states have internal predecessors, (283), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 01:35:52,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 327 transitions. [2023-11-29 01:35:52,882 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 327 transitions. Word has length 102 [2023-11-29 01:35:52,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:52,883 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 327 transitions. [2023-11-29 01:35:52,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 01:35:52,883 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 327 transitions. [2023-11-29 01:35:52,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 01:35:52,884 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:52,884 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:52,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 01:35:53,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-29 01:35:53,085 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:53,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:53,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1425832236, now seen corresponding path program 1 times [2023-11-29 01:35:53,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:53,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174571231] [2023-11-29 01:35:53,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:53,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:53,095 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:53,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [243826537] [2023-11-29 01:35:53,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:53,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:53,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:53,097 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:53,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 01:35:53,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:53,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:35:53,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:53,312 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 01:35:53,312 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:35:53,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:53,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174571231] [2023-11-29 01:35:53,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:53,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243826537] [2023-11-29 01:35:53,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243826537] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:35:53,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:35:53,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:35:53,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090664236] [2023-11-29 01:35:53,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:35:53,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:35:53,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:53,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:35:53,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:35:53,313 INFO L87 Difference]: Start difference. First operand 279 states and 327 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 01:35:53,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:53,494 INFO L93 Difference]: Finished difference Result 292 states and 335 transitions. [2023-11-29 01:35:53,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:35:53,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 103 [2023-11-29 01:35:53,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:53,496 INFO L225 Difference]: With dead ends: 292 [2023-11-29 01:35:53,496 INFO L226 Difference]: Without dead ends: 291 [2023-11-29 01:35:53,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:35:53,497 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 20 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:53,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 296 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:35:53,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-11-29 01:35:53,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 280. [2023-11-29 01:35:53,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 199 states have (on average 1.4271356783919598) internal successors, (284), 255 states have internal predecessors, (284), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 01:35:53,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 328 transitions. [2023-11-29 01:35:53,512 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 328 transitions. Word has length 103 [2023-11-29 01:35:53,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:53,512 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 328 transitions. [2023-11-29 01:35:53,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 01:35:53,512 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 328 transitions. [2023-11-29 01:35:53,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 01:35:53,513 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:53,513 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:53,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 01:35:53,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-29 01:35:53,713 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:53,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:53,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1251126180, now seen corresponding path program 1 times [2023-11-29 01:35:53,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:53,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515089465] [2023-11-29 01:35:53,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:53,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:53,721 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:53,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1227313404] [2023-11-29 01:35:53,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:53,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:53,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:53,722 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:53,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 01:35:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:53,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:35:53,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:53,917 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 01:35:53,917 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:35:53,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:53,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515089465] [2023-11-29 01:35:53,917 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:53,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227313404] [2023-11-29 01:35:53,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227313404] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:35:53,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:35:53,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:35:53,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100943726] [2023-11-29 01:35:53,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:35:53,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:35:53,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:53,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:35:53,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:35:53,918 INFO L87 Difference]: Start difference. First operand 280 states and 328 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 01:35:54,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:54,057 INFO L93 Difference]: Finished difference Result 303 states and 346 transitions. [2023-11-29 01:35:54,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:35:54,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 104 [2023-11-29 01:35:54,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:54,058 INFO L225 Difference]: With dead ends: 303 [2023-11-29 01:35:54,058 INFO L226 Difference]: Without dead ends: 302 [2023-11-29 01:35:54,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:35:54,059 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 73 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:54,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 306 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:35:54,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2023-11-29 01:35:54,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 287. [2023-11-29 01:35:54,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 206 states have (on average 1.412621359223301) internal successors, (291), 262 states have internal predecessors, (291), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 01:35:54,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 335 transitions. [2023-11-29 01:35:54,075 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 335 transitions. Word has length 104 [2023-11-29 01:35:54,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:54,075 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 335 transitions. [2023-11-29 01:35:54,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 01:35:54,075 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 335 transitions. [2023-11-29 01:35:54,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 01:35:54,076 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:54,076 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:54,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-11-29 01:35:54,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:54,277 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:54,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:54,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1653467349, now seen corresponding path program 1 times [2023-11-29 01:35:54,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:54,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130542512] [2023-11-29 01:35:54,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:54,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:54,284 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:54,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1711441990] [2023-11-29 01:35:54,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:54,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:54,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:54,285 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:54,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 01:35:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:54,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 01:35:54,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:54,490 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 01:35:54,490 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:35:55,034 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 01:35:55,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:55,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130542512] [2023-11-29 01:35:55,035 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:55,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711441990] [2023-11-29 01:35:55,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711441990] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:35:55,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:35:55,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 01:35:55,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460129868] [2023-11-29 01:35:55,035 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:35:55,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 01:35:55,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:55,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 01:35:55,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:35:55,037 INFO L87 Difference]: Start difference. First operand 287 states and 335 transitions. Second operand has 15 states, 14 states have (on average 8.428571428571429) internal successors, (118), 15 states have internal predecessors, (118), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 6 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 01:35:57,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:57,168 INFO L93 Difference]: Finished difference Result 1178 states and 1315 transitions. [2023-11-29 01:35:57,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 01:35:57,168 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.428571428571429) internal successors, (118), 15 states have internal predecessors, (118), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 6 states have call predecessors, (20), 7 states have call successors, (20) Word has length 104 [2023-11-29 01:35:57,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:57,175 INFO L225 Difference]: With dead ends: 1178 [2023-11-29 01:35:57,175 INFO L226 Difference]: Without dead ends: 1170 [2023-11-29 01:35:57,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=276, Invalid=780, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 01:35:57,177 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 2431 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2431 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 2178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:57,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2431 Valid, 1188 Invalid, 2178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 01:35:57,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2023-11-29 01:35:57,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 508. [2023-11-29 01:35:57,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 412 states have (on average 1.4854368932038835) internal successors, (612), 467 states have internal predecessors, (612), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 01:35:57,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 688 transitions. [2023-11-29 01:35:57,229 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 688 transitions. Word has length 104 [2023-11-29 01:35:57,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:57,229 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 688 transitions. [2023-11-29 01:35:57,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.428571428571429) internal successors, (118), 15 states have internal predecessors, (118), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 6 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 01:35:57,230 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 688 transitions. [2023-11-29 01:35:57,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 01:35:57,231 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:57,231 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:57,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 01:35:57,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:57,438 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:57,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:57,438 INFO L85 PathProgramCache]: Analyzing trace with hash -130205738, now seen corresponding path program 1 times [2023-11-29 01:35:57,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:57,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585409843] [2023-11-29 01:35:57,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:57,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:57,447 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:57,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1057265838] [2023-11-29 01:35:57,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:57,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:57,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:57,449 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:57,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 01:35:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:57,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:35:57,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:57,571 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 01:35:57,571 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:35:57,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:57,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585409843] [2023-11-29 01:35:57,572 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:57,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057265838] [2023-11-29 01:35:57,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057265838] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:35:57,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:35:57,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:35:57,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306955311] [2023-11-29 01:35:57,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:35:57,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:35:57,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:57,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:35:57,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:35:57,573 INFO L87 Difference]: Start difference. First operand 508 states and 688 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 01:35:57,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:57,738 INFO L93 Difference]: Finished difference Result 525 states and 706 transitions. [2023-11-29 01:35:57,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:35:57,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 105 [2023-11-29 01:35:57,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:57,740 INFO L225 Difference]: With dead ends: 525 [2023-11-29 01:35:57,741 INFO L226 Difference]: Without dead ends: 524 [2023-11-29 01:35:57,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:35:57,741 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 14 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:57,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 423 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:35:57,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2023-11-29 01:35:57,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 515. [2023-11-29 01:35:57,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 419 states have (on average 1.4821002386634845) internal successors, (621), 474 states have internal predecessors, (621), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 01:35:57,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 697 transitions. [2023-11-29 01:35:57,770 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 697 transitions. Word has length 105 [2023-11-29 01:35:57,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:57,771 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 697 transitions. [2023-11-29 01:35:57,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 01:35:57,771 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 697 transitions. [2023-11-29 01:35:57,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 01:35:57,772 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:57,772 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:57,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2023-11-29 01:35:57,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 01:35:57,974 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:57,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:57,974 INFO L85 PathProgramCache]: Analyzing trace with hash -282119656, now seen corresponding path program 1 times [2023-11-29 01:35:57,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:57,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18743378] [2023-11-29 01:35:57,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:57,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:57,983 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:57,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1982458336] [2023-11-29 01:35:57,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:57,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:57,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:57,985 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:57,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 01:35:58,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:58,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:35:58,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:58,068 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 01:35:58,068 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:35:58,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:58,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18743378] [2023-11-29 01:35:58,068 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:58,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982458336] [2023-11-29 01:35:58,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982458336] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:35:58,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:35:58,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:35:58,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192916488] [2023-11-29 01:35:58,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:35:58,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:35:58,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:58,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:35:58,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:35:58,070 INFO L87 Difference]: Start difference. First operand 515 states and 697 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-29 01:35:58,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:58,359 INFO L93 Difference]: Finished difference Result 576 states and 742 transitions. [2023-11-29 01:35:58,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:35:58,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 105 [2023-11-29 01:35:58,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:58,362 INFO L225 Difference]: With dead ends: 576 [2023-11-29 01:35:58,362 INFO L226 Difference]: Without dead ends: 575 [2023-11-29 01:35:58,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:35:58,362 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 251 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:58,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 453 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:35:58,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-11-29 01:35:58,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 515. [2023-11-29 01:35:58,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 419 states have (on average 1.4725536992840096) internal successors, (617), 474 states have internal predecessors, (617), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 01:35:58,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 693 transitions. [2023-11-29 01:35:58,390 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 693 transitions. Word has length 105 [2023-11-29 01:35:58,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:58,391 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 693 transitions. [2023-11-29 01:35:58,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-29 01:35:58,391 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 693 transitions. [2023-11-29 01:35:58,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 01:35:58,392 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:58,392 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:58,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 01:35:58,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:58,592 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:58,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:58,593 INFO L85 PathProgramCache]: Analyzing trace with hash 258589598, now seen corresponding path program 1 times [2023-11-29 01:35:58,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:58,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557451285] [2023-11-29 01:35:58,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:58,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:58,600 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:58,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1804187981] [2023-11-29 01:35:58,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:58,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:58,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:58,602 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:58,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 01:35:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:58,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:35:58,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:58,897 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 01:35:58,898 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:35:58,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:58,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557451285] [2023-11-29 01:35:58,898 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:35:58,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804187981] [2023-11-29 01:35:58,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804187981] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:35:58,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:35:58,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:35:58,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433263264] [2023-11-29 01:35:58,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:35:58,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:35:58,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:58,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:35:58,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:35:58,900 INFO L87 Difference]: Start difference. First operand 515 states and 693 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 01:35:59,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:35:59,279 INFO L93 Difference]: Finished difference Result 523 states and 699 transitions. [2023-11-29 01:35:59,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:35:59,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 106 [2023-11-29 01:35:59,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:35:59,281 INFO L225 Difference]: With dead ends: 523 [2023-11-29 01:35:59,281 INFO L226 Difference]: Without dead ends: 522 [2023-11-29 01:35:59,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:35:59,282 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 13 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:35:59,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 338 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:35:59,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2023-11-29 01:35:59,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 518. [2023-11-29 01:35:59,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 422 states have (on average 1.4691943127962086) internal successors, (620), 477 states have internal predecessors, (620), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 01:35:59,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 696 transitions. [2023-11-29 01:35:59,310 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 696 transitions. Word has length 106 [2023-11-29 01:35:59,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:35:59,310 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 696 transitions. [2023-11-29 01:35:59,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 01:35:59,310 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 696 transitions. [2023-11-29 01:35:59,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 01:35:59,311 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:59,311 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:59,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-29 01:35:59,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 01:35:59,511 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:35:59,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:59,512 INFO L85 PathProgramCache]: Analyzing trace with hash -155774665, now seen corresponding path program 1 times [2023-11-29 01:35:59,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:59,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446335031] [2023-11-29 01:35:59,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:59,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:59,518 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:35:59,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1990003344] [2023-11-29 01:35:59,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:59,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:35:59,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:59,519 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:35:59,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 01:35:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:59,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 01:35:59,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:35:59,836 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 01:35:59,836 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:36:07,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:36:07,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446335031] [2023-11-29 01:36:07,899 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:36:07,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990003344] [2023-11-29 01:36:07,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990003344] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:36:07,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:36:07,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 01:36:07,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485505028] [2023-11-29 01:36:07,900 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:36:07,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:36:07,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:36:07,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:36:07,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=104, Unknown=2, NotChecked=0, Total=132 [2023-11-29 01:36:07,901 INFO L87 Difference]: Start difference. First operand 518 states and 696 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 01:36:08,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:36:08,487 INFO L93 Difference]: Finished difference Result 550 states and 724 transitions. [2023-11-29 01:36:08,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:36:08,487 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 106 [2023-11-29 01:36:08,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:36:08,490 INFO L225 Difference]: With dead ends: 550 [2023-11-29 01:36:08,490 INFO L226 Difference]: Without dead ends: 549 [2023-11-29 01:36:08,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=72, Invalid=268, Unknown=2, NotChecked=0, Total=342 [2023-11-29 01:36:08,491 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 461 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:36:08,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 574 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:36:08,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2023-11-29 01:36:08,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 518. [2023-11-29 01:36:08,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 422 states have (on average 1.466824644549763) internal successors, (619), 477 states have internal predecessors, (619), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 01:36:08,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 695 transitions. [2023-11-29 01:36:08,520 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 695 transitions. Word has length 106 [2023-11-29 01:36:08,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:36:08,521 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 695 transitions. [2023-11-29 01:36:08,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 01:36:08,521 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 695 transitions. [2023-11-29 01:36:08,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 01:36:08,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:36:08,521 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:36:08,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2023-11-29 01:36:08,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 01:36:08,722 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:36:08,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:36:08,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1528558184, now seen corresponding path program 1 times [2023-11-29 01:36:08,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:36:08,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007585319] [2023-11-29 01:36:08,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:36:08,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:36:08,731 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:36:08,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033637980] [2023-11-29 01:36:08,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:36:08,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:36:08,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:36:08,732 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:36:08,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 01:36:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:36:08,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:36:08,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:36:08,874 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 01:36:08,874 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:36:08,990 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 01:36:08,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:36:08,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007585319] [2023-11-29 01:36:08,991 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:36:08,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033637980] [2023-11-29 01:36:08,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033637980] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:36:08,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:36:08,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2023-11-29 01:36:08,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853465583] [2023-11-29 01:36:08,991 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:36:08,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:36:08,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:36:08,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:36:08,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:36:08,992 INFO L87 Difference]: Start difference. First operand 518 states and 695 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 01:36:09,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:36:09,951 INFO L93 Difference]: Finished difference Result 1133 states and 1488 transitions. [2023-11-29 01:36:09,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:36:09,952 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 109 [2023-11-29 01:36:09,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:36:09,956 INFO L225 Difference]: With dead ends: 1133 [2023-11-29 01:36:09,956 INFO L226 Difference]: Without dead ends: 1104 [2023-11-29 01:36:09,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 205 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:36:09,957 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 759 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:36:09,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 726 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 01:36:09,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2023-11-29 01:36:10,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 842. [2023-11-29 01:36:10,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 722 states have (on average 1.5817174515235457) internal successors, (1142), 777 states have internal predecessors, (1142), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-29 01:36:10,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1266 transitions. [2023-11-29 01:36:10,011 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1266 transitions. Word has length 109 [2023-11-29 01:36:10,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:36:10,011 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1266 transitions. [2023-11-29 01:36:10,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 01:36:10,012 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1266 transitions. [2023-11-29 01:36:10,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 01:36:10,012 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:36:10,012 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:36:10,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2023-11-29 01:36:10,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 01:36:10,213 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:36:10,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:36:10,213 INFO L85 PathProgramCache]: Analyzing trace with hash -2035063929, now seen corresponding path program 1 times [2023-11-29 01:36:10,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:36:10,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984007] [2023-11-29 01:36:10,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:36:10,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:36:10,220 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:36:10,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [44352573] [2023-11-29 01:36:10,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:36:10,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:36:10,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:36:10,221 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:36:10,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 01:36:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:36:10,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:36:10,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:36:10,418 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 01:36:10,418 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:36:10,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:36:10,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984007] [2023-11-29 01:36:10,689 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:36:10,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44352573] [2023-11-29 01:36:10,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44352573] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:36:10,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:36:10,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 01:36:10,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316766379] [2023-11-29 01:36:10,689 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:36:10,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 01:36:10,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:36:10,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 01:36:10,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:36:10,690 INFO L87 Difference]: Start difference. First operand 842 states and 1266 transitions. Second operand has 11 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 01:36:13,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:36:13,119 INFO L93 Difference]: Finished difference Result 1575 states and 2275 transitions. [2023-11-29 01:36:13,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:36:13,119 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 112 [2023-11-29 01:36:13,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:36:13,125 INFO L225 Difference]: With dead ends: 1575 [2023-11-29 01:36:13,125 INFO L226 Difference]: Without dead ends: 1574 [2023-11-29 01:36:13,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2023-11-29 01:36:13,126 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 981 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:36:13,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 1107 Invalid, 1152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 01:36:13,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2023-11-29 01:36:13,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1210. [2023-11-29 01:36:13,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 1062 states have (on average 1.630885122410546) internal successors, (1732), 1117 states have internal predecessors, (1732), 90 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-29 01:36:13,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1912 transitions. [2023-11-29 01:36:13,193 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1912 transitions. Word has length 112 [2023-11-29 01:36:13,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:36:13,194 INFO L495 AbstractCegarLoop]: Abstraction has 1210 states and 1912 transitions. [2023-11-29 01:36:13,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 01:36:13,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1912 transitions. [2023-11-29 01:36:13,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 01:36:13,194 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:36:13,195 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:36:13,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-29 01:36:13,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2023-11-29 01:36:13,395 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:36:13,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:36:13,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1337527720, now seen corresponding path program 1 times [2023-11-29 01:36:13,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:36:13,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376829869] [2023-11-29 01:36:13,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:36:13,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:36:13,402 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:36:13,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1197375499] [2023-11-29 01:36:13,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:36:13,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:36:13,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:36:13,403 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:36:13,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 01:36:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:36:13,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 01:36:13,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:36:13,560 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 01:36:13,560 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:36:13,694 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 01:36:13,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:36:13,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376829869] [2023-11-29 01:36:13,695 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:36:13,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197375499] [2023-11-29 01:36:13,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197375499] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:36:13,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:36:13,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-29 01:36:13,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600590951] [2023-11-29 01:36:13,695 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:36:13,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:36:13,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:36:13,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:36:13,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:36:13,697 INFO L87 Difference]: Start difference. First operand 1210 states and 1912 transitions. Second operand has 13 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 5 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2023-11-29 01:36:18,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 01:36:22,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 01:36:26,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 01:36:30,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 01:36:34,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 01:36:38,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 01:36:42,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 01:36:46,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 01:36:50,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 01:36:54,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 01:36:54,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:36:54,650 INFO L93 Difference]: Finished difference Result 1930 states and 3020 transitions. [2023-11-29 01:36:54,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:36:54,651 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 5 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 113 [2023-11-29 01:36:54,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:36:54,659 INFO L225 Difference]: With dead ends: 1930 [2023-11-29 01:36:54,659 INFO L226 Difference]: Without dead ends: 1924 [2023-11-29 01:36:54,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2023-11-29 01:36:54,660 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 1098 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 65 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:36:54,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1098 Valid, 731 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 807 Invalid, 10 Unknown, 0 Unchecked, 40.8s Time] [2023-11-29 01:36:54,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2023-11-29 01:36:54,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 1513. [2023-11-29 01:36:54,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1342 states have (on average 1.6438152011922504) internal successors, (2206), 1397 states have internal predecessors, (2206), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-29 01:36:54,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2432 transitions. [2023-11-29 01:36:54,740 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2432 transitions. Word has length 113 [2023-11-29 01:36:54,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:36:54,740 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 2432 transitions. [2023-11-29 01:36:54,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 5 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2023-11-29 01:36:54,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2432 transitions. [2023-11-29 01:36:54,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 01:36:54,740 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:36:54,741 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:36:54,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-29 01:36:54,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2023-11-29 01:36:54,941 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:36:54,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:36:54,941 INFO L85 PathProgramCache]: Analyzing trace with hash -109099795, now seen corresponding path program 1 times [2023-11-29 01:36:54,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:36:54,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722597988] [2023-11-29 01:36:54,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:36:54,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:36:54,950 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:36:54,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1732503274] [2023-11-29 01:36:54,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:36:54,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:36:54,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:36:54,952 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:36:54,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 01:36:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:36:55,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 01:36:55,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:36:55,478 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-29 01:36:55,478 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:36:55,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:36:55,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722597988] [2023-11-29 01:36:55,596 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:36:55,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732503274] [2023-11-29 01:36:55,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732503274] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:36:55,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:36:55,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 01:36:55,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604205298] [2023-11-29 01:36:55,597 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:36:55,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:36:55,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:36:55,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:36:55,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:36:55,598 INFO L87 Difference]: Start difference. First operand 1513 states and 2432 transitions. Second operand has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 01:36:57,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:36:57,545 INFO L93 Difference]: Finished difference Result 1665 states and 2618 transitions. [2023-11-29 01:36:57,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:36:57,546 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) Word has length 119 [2023-11-29 01:36:57,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:36:57,553 INFO L225 Difference]: With dead ends: 1665 [2023-11-29 01:36:57,553 INFO L226 Difference]: Without dead ends: 1664 [2023-11-29 01:36:57,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:36:57,555 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 798 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:36:57,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 463 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 01:36:57,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2023-11-29 01:36:57,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1513. [2023-11-29 01:36:57,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1342 states have (on average 1.6430700447093889) internal successors, (2205), 1397 states have internal predecessors, (2205), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-29 01:36:57,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2431 transitions. [2023-11-29 01:36:57,642 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2431 transitions. Word has length 119 [2023-11-29 01:36:57,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:36:57,642 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 2431 transitions. [2023-11-29 01:36:57,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 01:36:57,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2431 transitions. [2023-11-29 01:36:57,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 01:36:57,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:36:57,643 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:36:57,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 01:36:57,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:36:57,844 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:36:57,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:36:57,844 INFO L85 PathProgramCache]: Analyzing trace with hash 912873735, now seen corresponding path program 1 times [2023-11-29 01:36:57,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:36:57,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880527887] [2023-11-29 01:36:57,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:36:57,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:36:57,851 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:36:57,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1274114349] [2023-11-29 01:36:57,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:36:57,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:36:57,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:36:57,852 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:36:57,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 01:36:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:36:57,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 01:36:57,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:36:58,420 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-29 01:36:58,420 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:36:58,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:36:58,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880527887] [2023-11-29 01:36:58,612 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:36:58,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274114349] [2023-11-29 01:36:58,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274114349] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:36:58,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:36:58,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 01:36:58,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277231397] [2023-11-29 01:36:58,612 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:36:58,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:36:58,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:36:58,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:36:58,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:36:58,613 INFO L87 Difference]: Start difference. First operand 1513 states and 2431 transitions. Second operand has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 01:37:00,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:37:00,468 INFO L93 Difference]: Finished difference Result 1665 states and 2617 transitions. [2023-11-29 01:37:00,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:37:00,469 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) Word has length 120 [2023-11-29 01:37:00,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:37:00,476 INFO L225 Difference]: With dead ends: 1665 [2023-11-29 01:37:00,476 INFO L226 Difference]: Without dead ends: 1664 [2023-11-29 01:37:00,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:37:00,477 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 802 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:37:00,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 460 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 01:37:00,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2023-11-29 01:37:00,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1513. [2023-11-29 01:37:00,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1342 states have (on average 1.6423248882265276) internal successors, (2204), 1397 states have internal predecessors, (2204), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-29 01:37:00,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2430 transitions. [2023-11-29 01:37:00,561 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2430 transitions. Word has length 120 [2023-11-29 01:37:00,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:37:00,562 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 2430 transitions. [2023-11-29 01:37:00,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 01:37:00,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2430 transitions. [2023-11-29 01:37:00,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 01:37:00,562 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:37:00,562 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:37:00,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2023-11-29 01:37:00,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:37:00,763 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:37:00,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:37:00,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1765685201, now seen corresponding path program 1 times [2023-11-29 01:37:00,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:37:00,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862659658] [2023-11-29 01:37:00,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:00,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:37:00,772 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:37:00,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [886848493] [2023-11-29 01:37:00,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:00,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:37:00,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:37:00,774 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:37:00,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 01:37:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:00,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 01:37:00,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:37:01,235 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-29 01:37:01,235 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:37:01,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:37:01,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862659658] [2023-11-29 01:37:01,350 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:37:01,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886848493] [2023-11-29 01:37:01,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886848493] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:37:01,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:37:01,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 01:37:01,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861996998] [2023-11-29 01:37:01,350 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:37:01,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:37:01,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:37:01,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:37:01,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:37:01,352 INFO L87 Difference]: Start difference. First operand 1513 states and 2430 transitions. Second operand has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 01:37:03,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:37:03,744 INFO L93 Difference]: Finished difference Result 1648 states and 2594 transitions. [2023-11-29 01:37:03,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:37:03,745 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 121 [2023-11-29 01:37:03,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:37:03,754 INFO L225 Difference]: With dead ends: 1648 [2023-11-29 01:37:03,754 INFO L226 Difference]: Without dead ends: 1647 [2023-11-29 01:37:03,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:37:03,755 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 479 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:37:03,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 519 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 01:37:03,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2023-11-29 01:37:03,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1513. [2023-11-29 01:37:03,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1342 states have (on average 1.6415797317436662) internal successors, (2203), 1397 states have internal predecessors, (2203), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-29 01:37:03,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2429 transitions. [2023-11-29 01:37:03,844 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2429 transitions. Word has length 121 [2023-11-29 01:37:03,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:37:03,844 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 2429 transitions. [2023-11-29 01:37:03,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 01:37:03,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2429 transitions. [2023-11-29 01:37:03,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 01:37:03,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:37:03,845 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:37:03,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 01:37:04,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-29 01:37:04,045 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:37:04,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:37:04,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1098333705, now seen corresponding path program 1 times [2023-11-29 01:37:04,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:37:04,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746581683] [2023-11-29 01:37:04,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:04,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:37:04,054 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:37:04,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1547787051] [2023-11-29 01:37:04,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:04,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:37:04,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:37:04,055 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:37:04,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 01:37:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:04,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 01:37:04,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:37:04,542 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-29 01:37:04,542 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:37:04,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:37:04,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746581683] [2023-11-29 01:37:04,706 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:37:04,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547787051] [2023-11-29 01:37:04,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547787051] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:37:04,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:37:04,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 01:37:04,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515517460] [2023-11-29 01:37:04,707 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:37:04,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:37:04,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:37:04,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:37:04,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:37:04,708 INFO L87 Difference]: Start difference. First operand 1513 states and 2429 transitions. Second operand has 9 states, 8 states have (on average 9.5) internal successors, (76), 9 states have internal predecessors, (76), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 01:37:06,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:37:06,499 INFO L93 Difference]: Finished difference Result 1647 states and 2593 transitions. [2023-11-29 01:37:06,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:37:06,499 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 9 states have internal predecessors, (76), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 122 [2023-11-29 01:37:06,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:37:06,508 INFO L225 Difference]: With dead ends: 1647 [2023-11-29 01:37:06,508 INFO L226 Difference]: Without dead ends: 1646 [2023-11-29 01:37:06,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:37:06,509 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 359 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:37:06,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 599 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 01:37:06,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2023-11-29 01:37:06,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1513. [2023-11-29 01:37:06,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1342 states have (on average 1.6408345752608047) internal successors, (2202), 1397 states have internal predecessors, (2202), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-29 01:37:06,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2428 transitions. [2023-11-29 01:37:06,598 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2428 transitions. Word has length 122 [2023-11-29 01:37:06,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:37:06,598 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 2428 transitions. [2023-11-29 01:37:06,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 9 states have internal predecessors, (76), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 01:37:06,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2428 transitions. [2023-11-29 01:37:06,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 01:37:06,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:37:06,600 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:37:06,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 01:37:06,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-29 01:37:06,800 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:37:06,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:37:06,801 INFO L85 PathProgramCache]: Analyzing trace with hash -311393423, now seen corresponding path program 1 times [2023-11-29 01:37:06,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:37:06,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256729410] [2023-11-29 01:37:06,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:06,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:37:06,810 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:37:06,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [137398590] [2023-11-29 01:37:06,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:06,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:37:06,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:37:06,812 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:37:06,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 01:37:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:06,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 01:37:06,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:37:10,416 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 01:37:10,416 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:37:11,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:37:11,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256729410] [2023-11-29 01:37:11,008 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:37:11,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137398590] [2023-11-29 01:37:11,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137398590] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:37:11,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:37:11,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 01:37:11,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111754872] [2023-11-29 01:37:11,009 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:37:11,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:37:11,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:37:11,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:37:11,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:37:11,010 INFO L87 Difference]: Start difference. First operand 1513 states and 2428 transitions. Second operand has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 6 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 01:37:23,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:37:23,711 INFO L93 Difference]: Finished difference Result 2912 states and 4635 transitions. [2023-11-29 01:37:23,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 01:37:23,712 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 6 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) Word has length 123 [2023-11-29 01:37:23,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:37:23,720 INFO L225 Difference]: With dead ends: 2912 [2023-11-29 01:37:23,720 INFO L226 Difference]: Without dead ends: 2911 [2023-11-29 01:37:23,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=143, Invalid=727, Unknown=0, NotChecked=0, Total=870 [2023-11-29 01:37:23,721 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 650 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 2307 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 2327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:37:23,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 747 Invalid, 2327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2307 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2023-11-29 01:37:23,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2023-11-29 01:37:23,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2479. [2023-11-29 01:37:23,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2479 states, 2236 states have (on average 1.6690518783542039) internal successors, (3732), 2291 states have internal predecessors, (3732), 185 states have call successors, (185), 2 states have call predecessors, (185), 2 states have return successors, (185), 185 states have call predecessors, (185), 185 states have call successors, (185) [2023-11-29 01:37:23,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2479 states to 2479 states and 4102 transitions. [2023-11-29 01:37:23,882 INFO L78 Accepts]: Start accepts. Automaton has 2479 states and 4102 transitions. Word has length 123 [2023-11-29 01:37:23,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:37:23,883 INFO L495 AbstractCegarLoop]: Abstraction has 2479 states and 4102 transitions. [2023-11-29 01:37:23,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 6 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 01:37:23,883 INFO L276 IsEmpty]: Start isEmpty. Operand 2479 states and 4102 transitions. [2023-11-29 01:37:23,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 01:37:23,884 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:37:23,884 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:37:23,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-11-29 01:37:24,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-29 01:37:24,084 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:37:24,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:37:24,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1063261429, now seen corresponding path program 1 times [2023-11-29 01:37:24,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:37:24,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728031889] [2023-11-29 01:37:24,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:24,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:37:24,095 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:37:24,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1051728352] [2023-11-29 01:37:24,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:24,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:37:24,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:37:24,096 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:37:24,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 01:37:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:24,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:37:24,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:37:24,241 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-29 01:37:24,241 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:37:32,725 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-29 01:37:32,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:37:32,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728031889] [2023-11-29 01:37:32,726 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:37:32,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051728352] [2023-11-29 01:37:32,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051728352] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:37:32,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:37:32,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2023-11-29 01:37:32,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23188508] [2023-11-29 01:37:32,726 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:37:32,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:37:32,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:37:32,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:37:32,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=17, Unknown=2, NotChecked=0, Total=30 [2023-11-29 01:37:32,727 INFO L87 Difference]: Start difference. First operand 2479 states and 4102 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 01:37:33,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:37:33,569 INFO L93 Difference]: Finished difference Result 2831 states and 4616 transitions. [2023-11-29 01:37:33,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:37:33,570 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 124 [2023-11-29 01:37:33,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:37:33,584 INFO L225 Difference]: With dead ends: 2831 [2023-11-29 01:37:33,584 INFO L226 Difference]: Without dead ends: 2824 [2023-11-29 01:37:33,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 241 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=15, Invalid=25, Unknown=2, NotChecked=0, Total=42 [2023-11-29 01:37:33,585 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 174 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:37:33,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 464 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 01:37:33,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2824 states. [2023-11-29 01:37:33,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2824 to 2771. [2023-11-29 01:37:33,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6675988813423892) internal successors, (4174), 2558 states have internal predecessors, (4174), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 01:37:33,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4594 transitions. [2023-11-29 01:37:33,739 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4594 transitions. Word has length 124 [2023-11-29 01:37:33,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:37:33,739 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4594 transitions. [2023-11-29 01:37:33,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 01:37:33,739 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4594 transitions. [2023-11-29 01:37:33,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-29 01:37:33,740 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:37:33,740 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:37:33,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2023-11-29 01:37:33,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 01:37:33,940 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:37:33,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:37:33,941 INFO L85 PathProgramCache]: Analyzing trace with hash -545325671, now seen corresponding path program 1 times [2023-11-29 01:37:33,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:37:33,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440940283] [2023-11-29 01:37:33,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:33,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:37:33,948 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:37:33,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [921949287] [2023-11-29 01:37:33,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:33,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:37:33,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:37:33,949 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:37:33,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 01:37:34,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:34,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 01:37:34,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:37:34,526 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-29 01:37:34,527 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:37:34,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:37:34,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440940283] [2023-11-29 01:37:34,871 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:37:34,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921949287] [2023-11-29 01:37:34,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921949287] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:37:34,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:37:34,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 01:37:34,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837112389] [2023-11-29 01:37:34,871 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:37:34,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 01:37:34,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:37:34,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 01:37:34,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:37:34,872 INFO L87 Difference]: Start difference. First operand 2771 states and 4594 transitions. Second operand has 11 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 01:37:36,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:37:36,622 INFO L93 Difference]: Finished difference Result 2822 states and 4619 transitions. [2023-11-29 01:37:36,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:37:36,623 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 130 [2023-11-29 01:37:36,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:37:36,629 INFO L225 Difference]: With dead ends: 2822 [2023-11-29 01:37:36,629 INFO L226 Difference]: Without dead ends: 2820 [2023-11-29 01:37:36,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2023-11-29 01:37:36,630 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 766 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:37:36,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 454 Invalid, 1238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 01:37:36,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2023-11-29 01:37:36,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2771. [2023-11-29 01:37:36,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6652017578905314) internal successors, (4168), 2558 states have internal predecessors, (4168), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 01:37:36,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4588 transitions. [2023-11-29 01:37:36,794 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4588 transitions. Word has length 130 [2023-11-29 01:37:36,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:37:36,794 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4588 transitions. [2023-11-29 01:37:36,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 01:37:36,794 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4588 transitions. [2023-11-29 01:37:36,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 01:37:36,795 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:37:36,795 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:37:36,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 01:37:36,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 01:37:36,995 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:37:36,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:37:36,995 INFO L85 PathProgramCache]: Analyzing trace with hash 274773480, now seen corresponding path program 1 times [2023-11-29 01:37:36,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:37:36,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177718412] [2023-11-29 01:37:36,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:36,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:37:37,002 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:37:37,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1888000299] [2023-11-29 01:37:37,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:37,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:37:37,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:37:37,003 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:37:37,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 01:37:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:37,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 01:37:37,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:37:37,662 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-29 01:37:37,662 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:37:41,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:37:41,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177718412] [2023-11-29 01:37:41,979 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:37:41,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888000299] [2023-11-29 01:37:41,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888000299] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:37:41,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:37:41,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 01:37:41,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412972453] [2023-11-29 01:37:41,980 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:37:41,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:37:41,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:37:41,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:37:41,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=136, Unknown=1, NotChecked=0, Total=182 [2023-11-29 01:37:41,981 INFO L87 Difference]: Start difference. First operand 2771 states and 4588 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 01:37:43,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:37:43,839 INFO L93 Difference]: Finished difference Result 2820 states and 4613 transitions. [2023-11-29 01:37:43,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:37:43,839 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 131 [2023-11-29 01:37:43,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:37:43,844 INFO L225 Difference]: With dead ends: 2820 [2023-11-29 01:37:43,844 INFO L226 Difference]: Without dead ends: 2818 [2023-11-29 01:37:43,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=74, Invalid=231, Unknown=1, NotChecked=0, Total=306 [2023-11-29 01:37:43,845 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 409 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:37:43,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 503 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 01:37:43,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2818 states. [2023-11-29 01:37:44,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2818 to 2771. [2023-11-29 01:37:44,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6628046344386735) internal successors, (4162), 2558 states have internal predecessors, (4162), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 01:37:44,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4582 transitions. [2023-11-29 01:37:44,029 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4582 transitions. Word has length 131 [2023-11-29 01:37:44,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:37:44,029 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4582 transitions. [2023-11-29 01:37:44,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 01:37:44,029 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4582 transitions. [2023-11-29 01:37:44,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-29 01:37:44,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:37:44,030 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:37:44,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 01:37:44,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 01:37:44,231 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:37:44,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:37:44,231 INFO L85 PathProgramCache]: Analyzing trace with hash -71956613, now seen corresponding path program 1 times [2023-11-29 01:37:44,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:37:44,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377681732] [2023-11-29 01:37:44,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:44,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:37:44,241 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:37:44,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [500637734] [2023-11-29 01:37:44,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:44,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:37:44,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:37:44,242 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:37:44,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 01:37:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:44,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 01:37:44,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:37:44,884 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-29 01:37:44,885 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:37:53,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:37:53,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377681732] [2023-11-29 01:37:53,078 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:37:53,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500637734] [2023-11-29 01:37:53,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500637734] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:37:53,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:37:53,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 01:37:53,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840704870] [2023-11-29 01:37:53,078 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:37:53,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:37:53,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:37:53,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:37:53,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=102, Unknown=2, NotChecked=0, Total=132 [2023-11-29 01:37:53,079 INFO L87 Difference]: Start difference. First operand 2771 states and 4582 transitions. Second operand has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 01:37:54,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:37:54,831 INFO L93 Difference]: Finished difference Result 2833 states and 4629 transitions. [2023-11-29 01:37:54,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:37:54,832 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 132 [2023-11-29 01:37:54,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:37:54,836 INFO L225 Difference]: With dead ends: 2833 [2023-11-29 01:37:54,837 INFO L226 Difference]: Without dead ends: 2832 [2023-11-29 01:37:54,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=38, Invalid=142, Unknown=2, NotChecked=0, Total=182 [2023-11-29 01:37:54,838 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 339 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:37:54,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 494 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 01:37:54,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2832 states. [2023-11-29 01:37:55,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2832 to 2771. [2023-11-29 01:37:55,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.662405113863364) internal successors, (4161), 2558 states have internal predecessors, (4161), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 01:37:55,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4581 transitions. [2023-11-29 01:37:55,028 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4581 transitions. Word has length 132 [2023-11-29 01:37:55,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:37:55,028 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4581 transitions. [2023-11-29 01:37:55,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 01:37:55,028 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4581 transitions. [2023-11-29 01:37:55,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-29 01:37:55,029 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:37:55,029 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:37:55,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 01:37:55,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:37:55,229 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:37:55,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:37:55,230 INFO L85 PathProgramCache]: Analyzing trace with hash 2064312394, now seen corresponding path program 1 times [2023-11-29 01:37:55,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:37:55,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816249552] [2023-11-29 01:37:55,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:55,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:37:55,237 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:37:55,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2122368637] [2023-11-29 01:37:55,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:55,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:37:55,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:37:55,238 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:37:55,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 01:37:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:55,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 01:37:55,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:37:55,809 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-29 01:37:55,810 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:37:59,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:37:59,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816249552] [2023-11-29 01:37:59,048 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:37:59,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122368637] [2023-11-29 01:37:59,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122368637] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:37:59,048 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:37:59,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 01:37:59,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126687001] [2023-11-29 01:37:59,048 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:37:59,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:37:59,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:37:59,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:37:59,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=102, Unknown=2, NotChecked=0, Total=132 [2023-11-29 01:37:59,050 INFO L87 Difference]: Start difference. First operand 2771 states and 4581 transitions. Second operand has 9 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 01:38:00,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:38:00,799 INFO L93 Difference]: Finished difference Result 2833 states and 4628 transitions. [2023-11-29 01:38:00,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:38:00,800 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 133 [2023-11-29 01:38:00,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:38:00,804 INFO L225 Difference]: With dead ends: 2833 [2023-11-29 01:38:00,804 INFO L226 Difference]: Without dead ends: 2832 [2023-11-29 01:38:00,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=38, Invalid=142, Unknown=2, NotChecked=0, Total=182 [2023-11-29 01:38:00,806 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 285 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:38:00,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 539 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 01:38:00,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2832 states. [2023-11-29 01:38:00,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2832 to 2771. [2023-11-29 01:38:00,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6620055932880544) internal successors, (4160), 2558 states have internal predecessors, (4160), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 01:38:00,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4580 transitions. [2023-11-29 01:38:00,972 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4580 transitions. Word has length 133 [2023-11-29 01:38:00,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:38:00,972 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4580 transitions. [2023-11-29 01:38:00,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 01:38:00,972 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4580 transitions. [2023-11-29 01:38:00,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-29 01:38:00,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:38:00,973 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:38:00,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-29 01:38:01,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:38:01,173 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:38:01,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:38:01,174 INFO L85 PathProgramCache]: Analyzing trace with hash -430825123, now seen corresponding path program 1 times [2023-11-29 01:38:01,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:38:01,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96703774] [2023-11-29 01:38:01,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:38:01,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:38:01,181 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:38:01,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1350793332] [2023-11-29 01:38:01,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:38:01,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:38:01,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:38:01,182 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:38:01,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 01:38:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:01,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:38:01,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:38:01,587 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 6 proven. 29 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-29 01:38:01,587 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:38:01,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:38:01,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96703774] [2023-11-29 01:38:01,654 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:38:01,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350793332] [2023-11-29 01:38:01,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350793332] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:38:01,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:38:01,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 01:38:01,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548689178] [2023-11-29 01:38:01,655 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:38:01,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:38:01,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:38:01,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:38:01,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:38:01,656 INFO L87 Difference]: Start difference. First operand 2771 states and 4580 transitions. Second operand has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 01:38:03,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:38:03,204 INFO L93 Difference]: Finished difference Result 2856 states and 4637 transitions. [2023-11-29 01:38:03,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:38:03,205 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 134 [2023-11-29 01:38:03,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:38:03,210 INFO L225 Difference]: With dead ends: 2856 [2023-11-29 01:38:03,210 INFO L226 Difference]: Without dead ends: 2851 [2023-11-29 01:38:03,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:38:03,211 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 301 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:38:03,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 566 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 01:38:03,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2023-11-29 01:38:03,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 2771. [2023-11-29 01:38:03,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6552137435077907) internal successors, (4143), 2558 states have internal predecessors, (4143), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 01:38:03,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4563 transitions. [2023-11-29 01:38:03,389 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4563 transitions. Word has length 134 [2023-11-29 01:38:03,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:38:03,389 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4563 transitions. [2023-11-29 01:38:03,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 01:38:03,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4563 transitions. [2023-11-29 01:38:03,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-29 01:38:03,390 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:38:03,390 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:38:03,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-29 01:38:03,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:38:03,590 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:38:03,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:38:03,591 INFO L85 PathProgramCache]: Analyzing trace with hash -470676820, now seen corresponding path program 1 times [2023-11-29 01:38:03,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:38:03,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197823603] [2023-11-29 01:38:03,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:38:03,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:38:03,598 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:38:03,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1499949899] [2023-11-29 01:38:03,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:38:03,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:38:03,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:38:03,599 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:38:03,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 01:38:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:03,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 01:38:03,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:38:04,901 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 6 proven. 39 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-29 01:38:04,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:38:05,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:38:05,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197823603] [2023-11-29 01:38:05,106 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:38:05,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499949899] [2023-11-29 01:38:05,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499949899] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:38:05,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:38:05,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 01:38:05,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653888999] [2023-11-29 01:38:05,107 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:38:05,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:38:05,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:38:05,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:38:05,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:38:05,108 INFO L87 Difference]: Start difference. First operand 2771 states and 4563 transitions. Second operand has 13 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 01:38:09,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:38:09,175 INFO L93 Difference]: Finished difference Result 2831 states and 4610 transitions. [2023-11-29 01:38:09,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:38:09,175 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 135 [2023-11-29 01:38:09,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:38:09,179 INFO L225 Difference]: With dead ends: 2831 [2023-11-29 01:38:09,179 INFO L226 Difference]: Without dead ends: 2830 [2023-11-29 01:38:09,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:38:09,180 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 400 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 1738 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 1749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:38:09,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 366 Invalid, 1749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1738 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-29 01:38:09,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2830 states. [2023-11-29 01:38:09,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2830 to 2771. [2023-11-29 01:38:09,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6540151817818618) internal successors, (4140), 2558 states have internal predecessors, (4140), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 01:38:09,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4560 transitions. [2023-11-29 01:38:09,354 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4560 transitions. Word has length 135 [2023-11-29 01:38:09,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:38:09,354 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4560 transitions. [2023-11-29 01:38:09,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 01:38:09,354 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4560 transitions. [2023-11-29 01:38:09,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-29 01:38:09,355 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:38:09,355 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:38:09,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-29 01:38:09,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2023-11-29 01:38:09,556 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:38:09,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:38:09,556 INFO L85 PathProgramCache]: Analyzing trace with hash -424488445, now seen corresponding path program 1 times [2023-11-29 01:38:09,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:38:09,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19540006] [2023-11-29 01:38:09,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:38:09,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:38:09,563 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:38:09,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [795578429] [2023-11-29 01:38:09,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:38:09,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:38:09,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:38:09,564 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:38:09,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 01:38:09,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:09,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 01:38:09,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:38:12,411 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 9 proven. 38 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-29 01:38:12,411 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:38:17,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:38:17,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19540006] [2023-11-29 01:38:17,490 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:38:17,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795578429] [2023-11-29 01:38:17,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795578429] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:38:17,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:38:17,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 01:38:17,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168043424] [2023-11-29 01:38:17,490 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:38:17,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:38:17,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:38:17,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:38:17,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=248, Unknown=1, NotChecked=0, Total=306 [2023-11-29 01:38:17,492 INFO L87 Difference]: Start difference. First operand 2771 states and 4560 transitions. Second operand has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 01:38:20,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:38:20,992 INFO L93 Difference]: Finished difference Result 2814 states and 4585 transitions. [2023-11-29 01:38:20,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:38:20,993 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 6 states have call successors, (13) Word has length 141 [2023-11-29 01:38:20,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:38:20,996 INFO L225 Difference]: With dead ends: 2814 [2023-11-29 01:38:20,996 INFO L226 Difference]: Without dead ends: 2813 [2023-11-29 01:38:20,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=132, Invalid=569, Unknown=1, NotChecked=0, Total=702 [2023-11-29 01:38:20,997 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 689 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:38:20,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 610 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1340 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 01:38:20,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2813 states. [2023-11-29 01:38:21,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2813 to 2771. [2023-11-29 01:38:21,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6528166200559329) internal successors, (4137), 2558 states have internal predecessors, (4137), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 01:38:21,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4557 transitions. [2023-11-29 01:38:21,192 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4557 transitions. Word has length 141 [2023-11-29 01:38:21,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:38:21,192 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4557 transitions. [2023-11-29 01:38:21,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 01:38:21,192 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4557 transitions. [2023-11-29 01:38:21,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 01:38:21,193 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:38:21,193 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:38:21,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-29 01:38:21,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2023-11-29 01:38:21,394 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:38:21,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:38:21,394 INFO L85 PathProgramCache]: Analyzing trace with hash -274239797, now seen corresponding path program 1 times [2023-11-29 01:38:21,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:38:21,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854107301] [2023-11-29 01:38:21,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:38:21,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:38:21,402 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:38:21,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1587552592] [2023-11-29 01:38:21,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:38:21,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:38:21,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:38:21,404 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:38:21,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 01:38:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:21,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 01:38:21,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:38:21,762 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 12 proven. 27 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2023-11-29 01:38:21,762 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:38:26,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:38:26,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854107301] [2023-11-29 01:38:26,070 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:38:26,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587552592] [2023-11-29 01:38:26,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587552592] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:38:26,070 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:38:26,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 01:38:26,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609626109] [2023-11-29 01:38:26,070 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:38:26,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:38:26,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:38:26,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:38:26,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=81, Unknown=1, NotChecked=0, Total=110 [2023-11-29 01:38:26,071 INFO L87 Difference]: Start difference. First operand 2771 states and 4557 transitions. Second operand has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 01:38:26,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:38:26,673 INFO L93 Difference]: Finished difference Result 2851 states and 4614 transitions. [2023-11-29 01:38:26,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:38:26,673 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 142 [2023-11-29 01:38:26,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:38:26,676 INFO L225 Difference]: With dead ends: 2851 [2023-11-29 01:38:26,676 INFO L226 Difference]: Without dead ends: 2850 [2023-11-29 01:38:26,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=32, Invalid=99, Unknown=1, NotChecked=0, Total=132 [2023-11-29 01:38:26,677 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 91 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:38:26,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 768 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:38:26,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states. [2023-11-29 01:38:26,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 2771. [2023-11-29 01:38:26,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6500199760287655) internal successors, (4130), 2558 states have internal predecessors, (4130), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 01:38:26,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4550 transitions. [2023-11-29 01:38:26,839 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4550 transitions. Word has length 142 [2023-11-29 01:38:26,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:38:26,839 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4550 transitions. [2023-11-29 01:38:26,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 01:38:26,839 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4550 transitions. [2023-11-29 01:38:26,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-29 01:38:26,840 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:38:26,840 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:38:26,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2023-11-29 01:38:27,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2023-11-29 01:38:27,041 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:38:27,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:38:27,041 INFO L85 PathProgramCache]: Analyzing trace with hash 88500997, now seen corresponding path program 1 times [2023-11-29 01:38:27,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:38:27,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086558627] [2023-11-29 01:38:27,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:38:27,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:38:27,051 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:38:27,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1972469741] [2023-11-29 01:38:27,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:38:27,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:38:27,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:38:27,052 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:38:27,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 01:38:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:27,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 01:38:27,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:38:28,149 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 18 proven. 31 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-29 01:38:28,149 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:38:36,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:38:36,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086558627] [2023-11-29 01:38:36,545 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:38:36,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972469741] [2023-11-29 01:38:36,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972469741] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:38:36,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:38:36,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 01:38:36,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772801539] [2023-11-29 01:38:36,546 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:38:36,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:38:36,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:38:36,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:38:36,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=323, Unknown=2, NotChecked=0, Total=380 [2023-11-29 01:38:36,547 INFO L87 Difference]: Start difference. First operand 2771 states and 4550 transitions. Second operand has 14 states, 12 states have (on average 7.25) internal successors, (87), 13 states have internal predecessors, (87), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 01:38:40,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:38:40,082 INFO L93 Difference]: Finished difference Result 2828 states and 4597 transitions. [2023-11-29 01:38:40,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:38:40,083 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.25) internal successors, (87), 13 states have internal predecessors, (87), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 143 [2023-11-29 01:38:40,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:38:40,085 INFO L225 Difference]: With dead ends: 2828 [2023-11-29 01:38:40,086 INFO L226 Difference]: Without dead ends: 2827 [2023-11-29 01:38:40,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=133, Invalid=735, Unknown=2, NotChecked=0, Total=870 [2023-11-29 01:38:40,086 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 613 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 1682 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 1720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:38:40,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 577 Invalid, 1720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1682 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-29 01:38:40,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2827 states. [2023-11-29 01:38:40,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2827 to 2771. [2023-11-29 01:38:40,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6488214143028366) internal successors, (4127), 2558 states have internal predecessors, (4127), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 01:38:40,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4547 transitions. [2023-11-29 01:38:40,288 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4547 transitions. Word has length 143 [2023-11-29 01:38:40,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:38:40,288 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4547 transitions. [2023-11-29 01:38:40,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.25) internal successors, (87), 13 states have internal predecessors, (87), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 01:38:40,288 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4547 transitions. [2023-11-29 01:38:40,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-29 01:38:40,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:38:40,289 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:38:40,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2023-11-29 01:38:40,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:38:40,490 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:38:40,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:38:40,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1551436275, now seen corresponding path program 1 times [2023-11-29 01:38:40,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:38:40,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531271856] [2023-11-29 01:38:40,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:38:40,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:38:40,500 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:38:40,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [5969610] [2023-11-29 01:38:40,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:38:40,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:38:40,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:38:40,501 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:38:40,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 01:38:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:40,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 01:38:40,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:38:41,797 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 12 proven. 38 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-29 01:38:41,798 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:38:47,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:38:47,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531271856] [2023-11-29 01:38:47,237 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:38:47,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5969610] [2023-11-29 01:38:47,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5969610] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:38:47,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:38:47,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 01:38:47,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163727565] [2023-11-29 01:38:47,237 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:38:47,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:38:47,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:38:47,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:38:47,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=202, Unknown=1, NotChecked=0, Total=240 [2023-11-29 01:38:47,238 INFO L87 Difference]: Start difference. First operand 2771 states and 4547 transitions. Second operand has 12 states, 10 states have (on average 8.8) internal successors, (88), 12 states have internal predecessors, (88), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 01:38:50,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:38:50,747 INFO L93 Difference]: Finished difference Result 2827 states and 4594 transitions. [2023-11-29 01:38:50,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:38:50,747 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.8) internal successors, (88), 12 states have internal predecessors, (88), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 144 [2023-11-29 01:38:50,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:38:50,750 INFO L225 Difference]: With dead ends: 2827 [2023-11-29 01:38:50,750 INFO L226 Difference]: Without dead ends: 2826 [2023-11-29 01:38:50,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=102, Invalid=497, Unknown=1, NotChecked=0, Total=600 [2023-11-29 01:38:50,751 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 621 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:38:50,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 562 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 01:38:50,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2826 states. [2023-11-29 01:38:50,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2826 to 2771. [2023-11-29 01:38:50,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6476228525769077) internal successors, (4124), 2558 states have internal predecessors, (4124), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 01:38:50,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4544 transitions. [2023-11-29 01:38:50,921 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4544 transitions. Word has length 144 [2023-11-29 01:38:50,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:38:50,922 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4544 transitions. [2023-11-29 01:38:50,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.8) internal successors, (88), 12 states have internal predecessors, (88), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 01:38:50,922 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4544 transitions. [2023-11-29 01:38:50,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 01:38:50,922 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:38:50,922 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:38:50,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2023-11-29 01:38:51,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2023-11-29 01:38:51,123 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:38:51,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:38:51,123 INFO L85 PathProgramCache]: Analyzing trace with hash -849884153, now seen corresponding path program 1 times [2023-11-29 01:38:51,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:38:51,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659821632] [2023-11-29 01:38:51,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:38:51,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:38:51,130 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:38:51,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1850778508] [2023-11-29 01:38:51,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:38:51,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:38:51,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:38:51,132 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:38:51,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 01:38:51,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:51,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 01:38:51,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:38:56,561 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2023-11-29 01:38:56,561 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:38:56,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:38:56,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659821632] [2023-11-29 01:38:56,594 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:38:56,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850778508] [2023-11-29 01:38:56,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850778508] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:38:56,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:38:56,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 01:38:56,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561598678] [2023-11-29 01:38:56,594 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:38:56,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:38:56,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:38:56,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:38:56,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=130, Unknown=1, NotChecked=0, Total=156 [2023-11-29 01:38:56,596 INFO L87 Difference]: Start difference. First operand 2771 states and 4544 transitions. Second operand has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 01:39:00,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:39:03,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:39:04,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:39:09,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:39:13,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:39:19,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:39:19,903 INFO L93 Difference]: Finished difference Result 2810 states and 4569 transitions. [2023-11-29 01:39:19,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:39:19,903 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 145 [2023-11-29 01:39:19,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:39:19,906 INFO L225 Difference]: With dead ends: 2810 [2023-11-29 01:39:19,906 INFO L226 Difference]: Without dead ends: 2809 [2023-11-29 01:39:19,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=70, Invalid=349, Unknown=1, NotChecked=0, Total=420 [2023-11-29 01:39:19,907 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 445 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 1586 mSolverCounterSat, 23 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 1612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1586 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:39:19,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 466 Invalid, 1612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1586 Invalid, 3 Unknown, 0 Unchecked, 22.0s Time] [2023-11-29 01:39:19,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2809 states. [2023-11-29 01:39:20,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2809 to 2771. [2023-11-29 01:39:20,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6464242908509787) internal successors, (4121), 2558 states have internal predecessors, (4121), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 01:39:20,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4541 transitions. [2023-11-29 01:39:20,074 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4541 transitions. Word has length 145 [2023-11-29 01:39:20,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:39:20,074 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4541 transitions. [2023-11-29 01:39:20,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 01:39:20,074 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4541 transitions. [2023-11-29 01:39:20,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 01:39:20,075 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:39:20,075 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:39:20,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2023-11-29 01:39:20,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-11-29 01:39:20,275 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:39:20,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:39:20,276 INFO L85 PathProgramCache]: Analyzing trace with hash -576604849, now seen corresponding path program 1 times [2023-11-29 01:39:20,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:39:20,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571779192] [2023-11-29 01:39:20,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:39:20,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:39:20,284 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:39:20,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [342941796] [2023-11-29 01:39:20,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:39:20,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:39:20,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:39:20,285 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:39:20,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 01:39:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:20,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 01:39:20,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:39:20,875 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 12 proven. 31 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2023-11-29 01:39:20,875 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:39:21,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:39:21,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571779192] [2023-11-29 01:39:21,146 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:39:21,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342941796] [2023-11-29 01:39:21,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342941796] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:39:21,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:39:21,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 01:39:21,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880414399] [2023-11-29 01:39:21,147 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:39:21,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:39:21,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:39:21,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:39:21,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:39:21,148 INFO L87 Difference]: Start difference. First operand 2771 states and 4541 transitions. Second operand has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 01:39:22,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:39:22,453 INFO L93 Difference]: Finished difference Result 2809 states and 4566 transitions. [2023-11-29 01:39:22,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:39:22,454 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) Word has length 146 [2023-11-29 01:39:22,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:39:22,457 INFO L225 Difference]: With dead ends: 2809 [2023-11-29 01:39:22,457 INFO L226 Difference]: Without dead ends: 2808 [2023-11-29 01:39:22,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:39:22,457 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 97 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:39:22,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 858 Invalid, 929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 01:39:22,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2808 states. [2023-11-29 01:39:22,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2808 to 2771. [2023-11-29 01:39:22,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6452257291250498) internal successors, (4118), 2558 states have internal predecessors, (4118), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 01:39:22,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4538 transitions. [2023-11-29 01:39:22,627 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4538 transitions. Word has length 146 [2023-11-29 01:39:22,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:39:22,628 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4538 transitions. [2023-11-29 01:39:22,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 01:39:22,628 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4538 transitions. [2023-11-29 01:39:22,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 01:39:22,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:39:22,629 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:39:22,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2023-11-29 01:39:22,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-11-29 01:39:22,829 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:39:22,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:39:22,829 INFO L85 PathProgramCache]: Analyzing trace with hash -2060720629, now seen corresponding path program 1 times [2023-11-29 01:39:22,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:39:22,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130040365] [2023-11-29 01:39:22,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:39:22,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:39:22,836 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:39:22,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1694937583] [2023-11-29 01:39:22,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:39:22,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:39:22,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:39:22,837 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:39:22,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-29 01:39:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:22,899 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 01:39:22,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:39:25,257 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2023-11-29 01:39:25,257 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:39:31,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:39:31,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130040365] [2023-11-29 01:39:31,032 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:39:31,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694937583] [2023-11-29 01:39:31,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694937583] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:39:31,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:39:31,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 01:39:31,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711805084] [2023-11-29 01:39:31,033 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:39:31,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 01:39:31,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:39:31,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 01:39:31,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:39:31,034 INFO L87 Difference]: Start difference. First operand 2771 states and 4538 transitions. Second operand has 15 states, 14 states have (on average 6.642857142857143) internal successors, (93), 15 states have internal predecessors, (93), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 01:39:37,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:39:37,999 INFO L93 Difference]: Finished difference Result 2808 states and 4563 transitions. [2023-11-29 01:39:38,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 01:39:38,000 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.642857142857143) internal successors, (93), 15 states have internal predecessors, (93), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 149 [2023-11-29 01:39:38,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:39:38,002 INFO L225 Difference]: With dead ends: 2808 [2023-11-29 01:39:38,003 INFO L226 Difference]: Without dead ends: 2807 [2023-11-29 01:39:38,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=146, Invalid=610, Unknown=0, NotChecked=0, Total=756 [2023-11-29 01:39:38,003 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 457 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 2016 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 2042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:39:38,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 417 Invalid, 2042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2016 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-11-29 01:39:38,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2807 states. [2023-11-29 01:39:38,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2807 to 2771. [2023-11-29 01:39:38,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6440271673991211) internal successors, (4115), 2558 states have internal predecessors, (4115), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 01:39:38,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4535 transitions. [2023-11-29 01:39:38,173 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4535 transitions. Word has length 149 [2023-11-29 01:39:38,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:39:38,174 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4535 transitions. [2023-11-29 01:39:38,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.642857142857143) internal successors, (93), 15 states have internal predecessors, (93), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 01:39:38,174 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4535 transitions. [2023-11-29 01:39:38,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 01:39:38,175 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:39:38,175 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:39:38,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2023-11-29 01:39:38,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:39:38,375 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:39:38,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:39:38,376 INFO L85 PathProgramCache]: Analyzing trace with hash 542170067, now seen corresponding path program 1 times [2023-11-29 01:39:38,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:39:38,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685894109] [2023-11-29 01:39:38,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:39:38,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:39:38,384 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:39:38,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [913661623] [2023-11-29 01:39:38,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:39:38,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:39:38,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:39:38,385 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:39:38,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-29 01:39:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:38,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 01:39:38,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:39:39,114 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2023-11-29 01:39:39,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:39:39,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:39:39,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685894109] [2023-11-29 01:39:39,222 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:39:39,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913661623] [2023-11-29 01:39:39,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913661623] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:39:39,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:39:39,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 01:39:39,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737773048] [2023-11-29 01:39:39,222 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:39:39,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 01:39:39,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:39:39,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 01:39:39,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:39:39,224 INFO L87 Difference]: Start difference. First operand 2771 states and 4535 transitions. Second operand has 11 states, 10 states have (on average 9.4) internal successors, (94), 11 states have internal predecessors, (94), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 01:39:41,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:39:41,403 INFO L93 Difference]: Finished difference Result 2807 states and 4560 transitions. [2023-11-29 01:39:41,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:39:41,404 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.4) internal successors, (94), 11 states have internal predecessors, (94), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) Word has length 150 [2023-11-29 01:39:41,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:39:41,407 INFO L225 Difference]: With dead ends: 2807 [2023-11-29 01:39:41,407 INFO L226 Difference]: Without dead ends: 2806 [2023-11-29 01:39:41,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:39:41,408 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 368 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:39:41,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 662 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 01:39:41,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2023-11-29 01:39:41,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 2771. [2023-11-29 01:39:41,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6428286056731922) internal successors, (4112), 2558 states have internal predecessors, (4112), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 01:39:41,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4532 transitions. [2023-11-29 01:39:41,595 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4532 transitions. Word has length 150 [2023-11-29 01:39:41,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:39:41,595 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4532 transitions. [2023-11-29 01:39:41,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.4) internal successors, (94), 11 states have internal predecessors, (94), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 01:39:41,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4532 transitions. [2023-11-29 01:39:41,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-29 01:39:41,596 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:39:41,596 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:39:41,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2023-11-29 01:39:41,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2023-11-29 01:39:41,797 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:39:41,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:39:41,797 INFO L85 PathProgramCache]: Analyzing trace with hash -372596979, now seen corresponding path program 1 times [2023-11-29 01:39:41,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:39:41,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214814078] [2023-11-29 01:39:41,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:39:41,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:39:41,806 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:39:41,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [350893979] [2023-11-29 01:39:41,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:39:41,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:39:41,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:39:41,807 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:39:41,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-29 01:39:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:41,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:39:41,877 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:39:42,178 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2023-11-29 01:39:42,178 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:39:42,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:39:42,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214814078] [2023-11-29 01:39:42,313 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:39:42,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350893979] [2023-11-29 01:39:42,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350893979] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:39:42,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:39:42,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 01:39:42,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701216259] [2023-11-29 01:39:42,314 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:39:42,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:39:42,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:39:42,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:39:42,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:39:42,315 INFO L87 Difference]: Start difference. First operand 2771 states and 4532 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 10 states have internal predecessors, (95), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 01:39:44,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:39:44,547 INFO L93 Difference]: Finished difference Result 3033 states and 4858 transitions. [2023-11-29 01:39:44,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:39:44,548 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 10 states have internal predecessors, (95), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) Word has length 151 [2023-11-29 01:39:44,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:39:44,551 INFO L225 Difference]: With dead ends: 3033 [2023-11-29 01:39:44,551 INFO L226 Difference]: Without dead ends: 3032 [2023-11-29 01:39:44,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:39:44,552 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 651 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:39:44,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 546 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 01:39:44,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states. [2023-11-29 01:39:44,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 2963. [2023-11-29 01:39:44,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2963 states, 2679 states have (on average 1.639044419559537) internal successors, (4391), 2734 states have internal predecessors, (4391), 226 states have call successors, (226), 2 states have call predecessors, (226), 2 states have return successors, (226), 226 states have call predecessors, (226), 226 states have call successors, (226) [2023-11-29 01:39:44,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2963 states to 2963 states and 4843 transitions. [2023-11-29 01:39:44,736 INFO L78 Accepts]: Start accepts. Automaton has 2963 states and 4843 transitions. Word has length 151 [2023-11-29 01:39:44,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:39:44,736 INFO L495 AbstractCegarLoop]: Abstraction has 2963 states and 4843 transitions. [2023-11-29 01:39:44,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 10 states have internal predecessors, (95), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 01:39:44,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2963 states and 4843 transitions. [2023-11-29 01:39:44,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 01:39:44,737 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:39:44,737 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:39:44,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2023-11-29 01:39:44,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2023-11-29 01:39:44,937 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:39:44,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:39:44,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1334395669, now seen corresponding path program 1 times [2023-11-29 01:39:44,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:39:44,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108421939] [2023-11-29 01:39:44,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:39:44,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:39:44,945 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:39:44,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1388548621] [2023-11-29 01:39:44,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:39:44,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:39:44,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:39:44,947 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:39:44,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-29 01:39:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:45,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 01:39:45,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:39:45,585 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-29 01:39:45,585 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:39:45,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:39:45,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108421939] [2023-11-29 01:39:45,893 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:39:45,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388548621] [2023-11-29 01:39:45,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388548621] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:39:45,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:39:45,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 01:39:45,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862541359] [2023-11-29 01:39:45,894 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:39:45,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:39:45,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:39:45,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:39:45,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:39:45,895 INFO L87 Difference]: Start difference. First operand 2963 states and 4843 transitions. Second operand has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 01:39:47,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:39:47,063 INFO L93 Difference]: Finished difference Result 4271 states and 6761 transitions. [2023-11-29 01:39:47,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 01:39:47,064 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 152 [2023-11-29 01:39:47,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:39:47,068 INFO L225 Difference]: With dead ends: 4271 [2023-11-29 01:39:47,068 INFO L226 Difference]: Without dead ends: 4268 [2023-11-29 01:39:47,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 278 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-11-29 01:39:47,069 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 1175 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:39:47,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1179 Valid, 430 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 01:39:47,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4268 states. [2023-11-29 01:39:47,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4268 to 3557. [2023-11-29 01:39:47,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3557 states, 3231 states have (on average 1.6521200866604766) internal successors, (5338), 3286 states have internal predecessors, (5338), 268 states have call successors, (268), 2 states have call predecessors, (268), 2 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268) [2023-11-29 01:39:47,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3557 states to 3557 states and 5874 transitions. [2023-11-29 01:39:47,291 INFO L78 Accepts]: Start accepts. Automaton has 3557 states and 5874 transitions. Word has length 152 [2023-11-29 01:39:47,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:39:47,291 INFO L495 AbstractCegarLoop]: Abstraction has 3557 states and 5874 transitions. [2023-11-29 01:39:47,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 01:39:47,291 INFO L276 IsEmpty]: Start isEmpty. Operand 3557 states and 5874 transitions. [2023-11-29 01:39:47,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 01:39:47,292 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:39:47,293 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:39:47,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2023-11-29 01:39:47,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2023-11-29 01:39:47,493 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:39:47,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:39:47,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1583407089, now seen corresponding path program 1 times [2023-11-29 01:39:47,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:39:47,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731493854] [2023-11-29 01:39:47,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:39:47,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:39:47,502 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:39:47,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1844730524] [2023-11-29 01:39:47,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:39:47,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:39:47,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:39:47,503 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:39:47,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2023-11-29 01:39:47,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:47,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 52 conjunts are in the unsatisfiable core [2023-11-29 01:39:47,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:39:49,506 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 27 proven. 44 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-11-29 01:39:49,507 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:39:53,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:39:53,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731493854] [2023-11-29 01:39:53,906 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:39:53,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844730524] [2023-11-29 01:39:53,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844730524] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:39:53,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:39:53,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 01:39:53,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720362088] [2023-11-29 01:39:53,906 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:39:53,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:39:53,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:39:53,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:39:53,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:39:53,907 INFO L87 Difference]: Start difference. First operand 3557 states and 5874 transitions. Second operand has 14 states, 13 states have (on average 7.461538461538462) internal successors, (97), 14 states have internal predecessors, (97), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 01:39:56,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:39:56,592 INFO L93 Difference]: Finished difference Result 3576 states and 5879 transitions. [2023-11-29 01:39:56,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 01:39:56,593 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.461538461538462) internal successors, (97), 14 states have internal predecessors, (97), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) Word has length 153 [2023-11-29 01:39:56,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:39:56,598 INFO L225 Difference]: With dead ends: 3576 [2023-11-29 01:39:56,599 INFO L226 Difference]: Without dead ends: 3572 [2023-11-29 01:39:56,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=118, Invalid=532, Unknown=0, NotChecked=0, Total=650 [2023-11-29 01:39:56,600 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 153 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 1695 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 1707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:39:56,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 536 Invalid, 1707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1695 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 01:39:56,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3572 states. [2023-11-29 01:39:56,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3572 to 3557. [2023-11-29 01:39:56,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3557 states, 3231 states have (on average 1.6484060662333644) internal successors, (5326), 3286 states have internal predecessors, (5326), 268 states have call successors, (268), 2 states have call predecessors, (268), 2 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268) [2023-11-29 01:39:56,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3557 states to 3557 states and 5862 transitions. [2023-11-29 01:39:56,825 INFO L78 Accepts]: Start accepts. Automaton has 3557 states and 5862 transitions. Word has length 153 [2023-11-29 01:39:56,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:39:56,825 INFO L495 AbstractCegarLoop]: Abstraction has 3557 states and 5862 transitions. [2023-11-29 01:39:56,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.461538461538462) internal successors, (97), 14 states have internal predecessors, (97), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 01:39:56,825 INFO L276 IsEmpty]: Start isEmpty. Operand 3557 states and 5862 transitions. [2023-11-29 01:39:56,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 01:39:56,826 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:39:56,826 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:39:56,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2023-11-29 01:39:57,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:39:57,027 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:39:57,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:39:57,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1840979369, now seen corresponding path program 1 times [2023-11-29 01:39:57,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:39:57,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461173014] [2023-11-29 01:39:57,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:39:57,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:39:57,036 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:39:57,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [966253569] [2023-11-29 01:39:57,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:39:57,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:39:57,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:39:57,037 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:39:57,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2023-11-29 01:39:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:57,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:39:57,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:39:57,876 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2023-11-29 01:39:57,876 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:40:02,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:40:02,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461173014] [2023-11-29 01:40:02,069 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:40:02,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966253569] [2023-11-29 01:40:02,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966253569] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:40:02,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:40:02,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 01:40:02,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108245371] [2023-11-29 01:40:02,069 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:40:02,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 01:40:02,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:40:02,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 01:40:02,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=119, Unknown=1, NotChecked=0, Total=156 [2023-11-29 01:40:02,070 INFO L87 Difference]: Start difference. First operand 3557 states and 5862 transitions. Second operand has 11 states, 10 states have (on average 9.8) internal successors, (98), 11 states have internal predecessors, (98), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 01:40:04,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:40:04,319 INFO L93 Difference]: Finished difference Result 3812 states and 6178 transitions. [2023-11-29 01:40:04,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:40:04,320 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.8) internal successors, (98), 11 states have internal predecessors, (98), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) Word has length 154 [2023-11-29 01:40:04,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:40:04,323 INFO L225 Difference]: With dead ends: 3812 [2023-11-29 01:40:04,323 INFO L226 Difference]: Without dead ends: 3810 [2023-11-29 01:40:04,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=114, Invalid=305, Unknown=1, NotChecked=0, Total=420 [2023-11-29 01:40:04,324 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 570 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:40:04,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 487 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 01:40:04,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3810 states. [2023-11-29 01:40:04,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3810 to 3745. [2023-11-29 01:40:04,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3745 states, 3403 states have (on average 1.6429620922715251) internal successors, (5591), 3458 states have internal predecessors, (5591), 284 states have call successors, (284), 2 states have call predecessors, (284), 2 states have return successors, (284), 284 states have call predecessors, (284), 284 states have call successors, (284) [2023-11-29 01:40:04,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3745 states to 3745 states and 6159 transitions. [2023-11-29 01:40:04,567 INFO L78 Accepts]: Start accepts. Automaton has 3745 states and 6159 transitions. Word has length 154 [2023-11-29 01:40:04,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:40:04,568 INFO L495 AbstractCegarLoop]: Abstraction has 3745 states and 6159 transitions. [2023-11-29 01:40:04,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.8) internal successors, (98), 11 states have internal predecessors, (98), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 01:40:04,568 INFO L276 IsEmpty]: Start isEmpty. Operand 3745 states and 6159 transitions. [2023-11-29 01:40:04,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-29 01:40:04,569 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:40:04,569 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:40:04,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2023-11-29 01:40:04,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:04,770 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:40:04,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:40:04,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1175308507, now seen corresponding path program 1 times [2023-11-29 01:40:04,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:40:04,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442207674] [2023-11-29 01:40:04,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:04,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:40:04,777 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:40:04,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1069298529] [2023-11-29 01:40:04,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:04,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:04,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:40:04,779 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:40:04,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2023-11-29 01:40:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:04,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 01:40:04,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:40:11,408 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 01:40:11,408 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:40:15,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:40:15,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442207674] [2023-11-29 01:40:15,724 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:40:15,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069298529] [2023-11-29 01:40:15,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069298529] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:40:15,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:40:15,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 01:40:15,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466127926] [2023-11-29 01:40:15,724 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:40:15,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:40:15,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:40:15,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:40:15,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=220, Unknown=1, NotChecked=0, Total=272 [2023-11-29 01:40:15,725 INFO L87 Difference]: Start difference. First operand 3745 states and 6159 transitions. Second operand has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 14 states have internal predecessors, (105), 5 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 01:40:20,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:40:20,353 INFO L93 Difference]: Finished difference Result 3759 states and 6164 transitions. [2023-11-29 01:40:20,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 01:40:20,354 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 14 states have internal predecessors, (105), 5 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 158 [2023-11-29 01:40:20,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:40:20,359 INFO L225 Difference]: With dead ends: 3759 [2023-11-29 01:40:20,359 INFO L226 Difference]: Without dead ends: 3758 [2023-11-29 01:40:20,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=78, Invalid=383, Unknown=1, NotChecked=0, Total=462 [2023-11-29 01:40:20,360 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 336 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 1619 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:40:20,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 618 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1619 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-29 01:40:20,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2023-11-29 01:40:20,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 3745. [2023-11-29 01:40:20,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3745 states, 3403 states have (on average 1.642080517190714) internal successors, (5588), 3458 states have internal predecessors, (5588), 284 states have call successors, (284), 2 states have call predecessors, (284), 2 states have return successors, (284), 284 states have call predecessors, (284), 284 states have call successors, (284) [2023-11-29 01:40:20,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3745 states to 3745 states and 6156 transitions. [2023-11-29 01:40:20,617 INFO L78 Accepts]: Start accepts. Automaton has 3745 states and 6156 transitions. Word has length 158 [2023-11-29 01:40:20,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:40:20,617 INFO L495 AbstractCegarLoop]: Abstraction has 3745 states and 6156 transitions. [2023-11-29 01:40:20,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 14 states have internal predecessors, (105), 5 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 01:40:20,617 INFO L276 IsEmpty]: Start isEmpty. Operand 3745 states and 6156 transitions. [2023-11-29 01:40:20,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-29 01:40:20,618 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:40:20,618 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:40:20,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2023-11-29 01:40:20,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:20,818 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:40:20,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:40:20,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1177926609, now seen corresponding path program 1 times [2023-11-29 01:40:20,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:40:20,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516679286] [2023-11-29 01:40:20,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:20,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:40:20,826 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:40:20,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [575849385] [2023-11-29 01:40:20,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:20,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:20,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:40:20,828 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:40:20,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2023-11-29 01:40:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:20,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:40:20,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:40:21,186 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 01:40:21,186 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:40:21,377 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 01:40:21,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:40:21,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516679286] [2023-11-29 01:40:21,378 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:40:21,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575849385] [2023-11-29 01:40:21,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575849385] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:40:21,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:40:21,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 01:40:21,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036293238] [2023-11-29 01:40:21,378 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:40:21,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:40:21,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:40:21,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:40:21,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:40:21,379 INFO L87 Difference]: Start difference. First operand 3745 states and 6156 transitions. Second operand has 12 states, 11 states have (on average 17.09090909090909) internal successors, (188), 12 states have internal predecessors, (188), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-29 01:40:23,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:40:23,477 INFO L93 Difference]: Finished difference Result 3842 states and 6261 transitions. [2023-11-29 01:40:23,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:40:23,478 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 17.09090909090909) internal successors, (188), 12 states have internal predecessors, (188), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) Word has length 161 [2023-11-29 01:40:23,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:40:23,482 INFO L225 Difference]: With dead ends: 3842 [2023-11-29 01:40:23,482 INFO L226 Difference]: Without dead ends: 3841 [2023-11-29 01:40:23,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:40:23,483 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 1355 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1359 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:40:23,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1359 Valid, 353 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 01:40:23,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3841 states. [2023-11-29 01:40:23,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3841 to 3835. [2023-11-29 01:40:23,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3835 states, 3485 states have (on average 1.6281205164992827) internal successors, (5674), 3540 states have internal predecessors, (5674), 292 states have call successors, (292), 2 states have call predecessors, (292), 2 states have return successors, (292), 292 states have call predecessors, (292), 292 states have call successors, (292) [2023-11-29 01:40:23,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3835 states to 3835 states and 6258 transitions. [2023-11-29 01:40:23,761 INFO L78 Accepts]: Start accepts. Automaton has 3835 states and 6258 transitions. Word has length 161 [2023-11-29 01:40:23,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:40:23,761 INFO L495 AbstractCegarLoop]: Abstraction has 3835 states and 6258 transitions. [2023-11-29 01:40:23,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 17.09090909090909) internal successors, (188), 12 states have internal predecessors, (188), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-29 01:40:23,762 INFO L276 IsEmpty]: Start isEmpty. Operand 3835 states and 6258 transitions. [2023-11-29 01:40:23,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-29 01:40:23,762 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:40:23,762 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:40:23,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2023-11-29 01:40:23,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2023-11-29 01:40:23,963 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:40:23,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:40:23,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1978679969, now seen corresponding path program 1 times [2023-11-29 01:40:23,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:40:23,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003766350] [2023-11-29 01:40:23,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:23,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:40:23,971 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:40:23,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [344019405] [2023-11-29 01:40:23,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:23,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:23,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:40:23,972 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:40:23,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2023-11-29 01:40:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:24,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:40:24,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:40:24,267 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 01:40:24,268 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:40:24,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:40:24,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003766350] [2023-11-29 01:40:24,449 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:40:24,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344019405] [2023-11-29 01:40:24,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344019405] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:40:24,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:40:24,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 01:40:24,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47888406] [2023-11-29 01:40:24,449 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:40:24,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:40:24,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:40:24,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:40:24,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:40:24,450 INFO L87 Difference]: Start difference. First operand 3835 states and 6258 transitions. Second operand has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 01:40:24,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:40:24,893 INFO L93 Difference]: Finished difference Result 3840 states and 6258 transitions. [2023-11-29 01:40:24,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:40:24,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 166 [2023-11-29 01:40:24,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:40:24,897 INFO L225 Difference]: With dead ends: 3840 [2023-11-29 01:40:24,897 INFO L226 Difference]: Without dead ends: 3839 [2023-11-29 01:40:24,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:40:24,898 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 83 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:40:24,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 343 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:40:24,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3839 states. [2023-11-29 01:40:25,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3839 to 3835. [2023-11-29 01:40:25,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3835 states, 3485 states have (on average 1.6278335724533717) internal successors, (5673), 3540 states have internal predecessors, (5673), 292 states have call successors, (292), 2 states have call predecessors, (292), 2 states have return successors, (292), 292 states have call predecessors, (292), 292 states have call successors, (292) [2023-11-29 01:40:25,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3835 states to 3835 states and 6257 transitions. [2023-11-29 01:40:25,173 INFO L78 Accepts]: Start accepts. Automaton has 3835 states and 6257 transitions. Word has length 166 [2023-11-29 01:40:25,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:40:25,173 INFO L495 AbstractCegarLoop]: Abstraction has 3835 states and 6257 transitions. [2023-11-29 01:40:25,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 01:40:25,174 INFO L276 IsEmpty]: Start isEmpty. Operand 3835 states and 6257 transitions. [2023-11-29 01:40:25,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-29 01:40:25,174 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:40:25,175 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:40:25,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0 [2023-11-29 01:40:25,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2023-11-29 01:40:25,375 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:40:25,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:40:25,375 INFO L85 PathProgramCache]: Analyzing trace with hash 744703354, now seen corresponding path program 2 times [2023-11-29 01:40:25,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:40:25,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217845322] [2023-11-29 01:40:25,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:25,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:40:25,385 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:40:25,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1244901964] [2023-11-29 01:40:25,385 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:40:25,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:25,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:40:25,386 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:40:25,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2023-11-29 01:40:25,451 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:40:25,452 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:40:25,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 01:40:25,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:40:26,513 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 18 proven. 74 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 01:40:26,513 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:40:27,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:40:27,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217845322] [2023-11-29 01:40:27,418 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:40:27,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244901964] [2023-11-29 01:40:27,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244901964] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:40:27,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:40:27,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 01:40:27,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512515984] [2023-11-29 01:40:27,419 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:40:27,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:40:27,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:40:27,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:40:27,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:40:27,420 INFO L87 Difference]: Start difference. First operand 3835 states and 6257 transitions. Second operand has 14 states, 13 states have (on average 8.461538461538462) internal successors, (110), 14 states have internal predecessors, (110), 6 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 01:40:29,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:40:29,255 INFO L93 Difference]: Finished difference Result 3842 states and 6260 transitions. [2023-11-29 01:40:29,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:40:29,256 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.461538461538462) internal successors, (110), 14 states have internal predecessors, (110), 6 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 168 [2023-11-29 01:40:29,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:40:29,259 INFO L225 Difference]: With dead ends: 3842 [2023-11-29 01:40:29,259 INFO L226 Difference]: Without dead ends: 3841 [2023-11-29 01:40:29,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 187 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2023-11-29 01:40:29,260 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 365 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 1904 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 1924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:40:29,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 698 Invalid, 1924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1904 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 01:40:29,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3841 states. [2023-11-29 01:40:29,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3841 to 3835. [2023-11-29 01:40:29,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3835 states, 3485 states have (on average 1.6275466284074604) internal successors, (5672), 3540 states have internal predecessors, (5672), 292 states have call successors, (292), 2 states have call predecessors, (292), 2 states have return successors, (292), 292 states have call predecessors, (292), 292 states have call successors, (292) [2023-11-29 01:40:29,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3835 states to 3835 states and 6256 transitions. [2023-11-29 01:40:29,526 INFO L78 Accepts]: Start accepts. Automaton has 3835 states and 6256 transitions. Word has length 168 [2023-11-29 01:40:29,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:40:29,526 INFO L495 AbstractCegarLoop]: Abstraction has 3835 states and 6256 transitions. [2023-11-29 01:40:29,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.461538461538462) internal successors, (110), 14 states have internal predecessors, (110), 6 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 01:40:29,526 INFO L276 IsEmpty]: Start isEmpty. Operand 3835 states and 6256 transitions. [2023-11-29 01:40:29,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-29 01:40:29,527 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:40:29,527 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:40:29,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2023-11-29 01:40:29,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2023-11-29 01:40:29,728 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:40:29,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:40:29,728 INFO L85 PathProgramCache]: Analyzing trace with hash -440712098, now seen corresponding path program 1 times [2023-11-29 01:40:29,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:40:29,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528538437] [2023-11-29 01:40:29,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:29,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:40:29,736 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:40:29,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1362698022] [2023-11-29 01:40:29,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:29,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:29,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:40:29,737 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:40:29,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2023-11-29 01:40:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:29,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:40:29,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:40:29,879 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 01:40:29,879 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:40:29,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:40:29,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528538437] [2023-11-29 01:40:29,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:40:29,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362698022] [2023-11-29 01:40:29,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362698022] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:40:29,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:40:29,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:40:29,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459659737] [2023-11-29 01:40:29,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:40:29,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:40:29,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:40:29,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:40:29,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:40:29,880 INFO L87 Difference]: Start difference. First operand 3835 states and 6256 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 01:40:30,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:40:30,159 INFO L93 Difference]: Finished difference Result 4246 states and 6843 transitions. [2023-11-29 01:40:30,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:40:30,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 170 [2023-11-29 01:40:30,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:40:30,160 INFO L225 Difference]: With dead ends: 4246 [2023-11-29 01:40:30,160 INFO L226 Difference]: Without dead ends: 1021 [2023-11-29 01:40:30,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:40:30,164 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 210 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:40:30,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 550 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:40:30,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2023-11-29 01:40:30,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 885. [2023-11-29 01:40:30,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 755 states have (on average 1.3602649006622516) internal successors, (1027), 810 states have internal predecessors, (1027), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2023-11-29 01:40:30,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1171 transitions. [2023-11-29 01:40:30,255 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1171 transitions. Word has length 170 [2023-11-29 01:40:30,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:40:30,256 INFO L495 AbstractCegarLoop]: Abstraction has 885 states and 1171 transitions. [2023-11-29 01:40:30,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 01:40:30,256 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1171 transitions. [2023-11-29 01:40:30,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-29 01:40:30,256 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:40:30,257 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:40:30,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2023-11-29 01:40:30,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:30,457 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:40:30,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:40:30,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1138355774, now seen corresponding path program 1 times [2023-11-29 01:40:30,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:40:30,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022307751] [2023-11-29 01:40:30,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:30,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:40:30,465 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:40:30,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [298999476] [2023-11-29 01:40:30,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:30,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:30,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:40:30,467 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:40:30,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2023-11-29 01:40:30,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:30,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:40:30,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:40:30,825 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 2 proven. 61 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-29 01:40:30,825 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:40:30,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:40:30,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022307751] [2023-11-29 01:40:30,885 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:40:30,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298999476] [2023-11-29 01:40:30,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298999476] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:40:30,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:40:30,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 01:40:30,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293367668] [2023-11-29 01:40:30,886 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:40:30,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:40:30,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:40:30,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:40:30,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:40:30,887 INFO L87 Difference]: Start difference. First operand 885 states and 1171 transitions. Second operand has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 10 states have internal predecessors, (111), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 01:40:32,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:40:32,216 INFO L93 Difference]: Finished difference Result 1189 states and 1556 transitions. [2023-11-29 01:40:32,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:40:32,216 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 10 states have internal predecessors, (111), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) Word has length 172 [2023-11-29 01:40:32,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:40:32,218 INFO L225 Difference]: With dead ends: 1189 [2023-11-29 01:40:32,218 INFO L226 Difference]: Without dead ends: 1187 [2023-11-29 01:40:32,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:40:32,218 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 569 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:40:32,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 898 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 01:40:32,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2023-11-29 01:40:32,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 885. [2023-11-29 01:40:32,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 755 states have (on average 1.3562913907284768) internal successors, (1024), 810 states have internal predecessors, (1024), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2023-11-29 01:40:32,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1168 transitions. [2023-11-29 01:40:32,308 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1168 transitions. Word has length 172 [2023-11-29 01:40:32,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:40:32,308 INFO L495 AbstractCegarLoop]: Abstraction has 885 states and 1168 transitions. [2023-11-29 01:40:32,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 10 states have internal predecessors, (111), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 01:40:32,309 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1168 transitions. [2023-11-29 01:40:32,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-29 01:40:32,309 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:40:32,309 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:40:32,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2023-11-29 01:40:32,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:32,510 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:40:32,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:40:32,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1472200934, now seen corresponding path program 1 times [2023-11-29 01:40:32,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:40:32,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797014917] [2023-11-29 01:40:32,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:32,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:40:32,519 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:40:32,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1997025192] [2023-11-29 01:40:32,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:32,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:32,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:40:32,521 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:40:32,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2023-11-29 01:40:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:32,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 01:40:32,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:40:33,502 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 3 proven. 56 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-29 01:40:33,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:40:37,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:40:37,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797014917] [2023-11-29 01:40:37,975 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:40:37,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997025192] [2023-11-29 01:40:37,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997025192] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:40:37,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:40:37,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 01:40:37,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598631933] [2023-11-29 01:40:37,975 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:40:37,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:40:37,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:40:37,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:40:37,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=247, Unknown=1, NotChecked=0, Total=306 [2023-11-29 01:40:37,977 INFO L87 Difference]: Start difference. First operand 885 states and 1168 transitions. Second operand has 13 states, 12 states have (on average 9.25) internal successors, (111), 12 states have internal predecessors, (111), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 01:40:40,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:40:40,711 INFO L93 Difference]: Finished difference Result 984 states and 1263 transitions. [2023-11-29 01:40:40,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:40:40,711 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.25) internal successors, (111), 12 states have internal predecessors, (111), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 172 [2023-11-29 01:40:40,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:40:40,713 INFO L225 Difference]: With dead ends: 984 [2023-11-29 01:40:40,713 INFO L226 Difference]: Without dead ends: 980 [2023-11-29 01:40:40,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=137, Invalid=564, Unknown=1, NotChecked=0, Total=702 [2023-11-29 01:40:40,713 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 494 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 1920 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 1953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:40:40,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 672 Invalid, 1953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1920 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 01:40:40,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2023-11-29 01:40:40,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 933. [2023-11-29 01:40:40,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 799 states have (on average 1.355444305381727) internal successors, (1083), 854 states have internal predecessors, (1083), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-11-29 01:40:40,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1235 transitions. [2023-11-29 01:40:40,807 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1235 transitions. Word has length 172 [2023-11-29 01:40:40,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:40:40,807 INFO L495 AbstractCegarLoop]: Abstraction has 933 states and 1235 transitions. [2023-11-29 01:40:40,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.25) internal successors, (111), 12 states have internal predecessors, (111), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 01:40:40,807 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1235 transitions. [2023-11-29 01:40:40,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-29 01:40:40,808 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:40:40,808 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:40:40,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2023-11-29 01:40:41,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:41,009 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:40:41,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:40:41,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1606411113, now seen corresponding path program 1 times [2023-11-29 01:40:41,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:40:41,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344044680] [2023-11-29 01:40:41,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:41,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:40:41,017 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:40:41,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1204239103] [2023-11-29 01:40:41,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:41,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:41,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:40:41,018 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:40:41,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2023-11-29 01:40:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:41,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 01:40:41,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:40:42,426 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 3 proven. 56 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-29 01:40:42,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:40:46,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:40:46,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344044680] [2023-11-29 01:40:46,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:40:46,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204239103] [2023-11-29 01:40:46,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204239103] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:40:46,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:40:46,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 01:40:46,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336086623] [2023-11-29 01:40:46,617 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:40:46,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:40:46,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:40:46,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:40:46,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=204, Unknown=1, NotChecked=0, Total=272 [2023-11-29 01:40:46,619 INFO L87 Difference]: Start difference. First operand 933 states and 1235 transitions. Second operand has 13 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 01:40:48,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:40:48,527 INFO L93 Difference]: Finished difference Result 1002 states and 1285 transitions. [2023-11-29 01:40:48,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:40:48,528 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 173 [2023-11-29 01:40:48,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:40:48,529 INFO L225 Difference]: With dead ends: 1002 [2023-11-29 01:40:48,529 INFO L226 Difference]: Without dead ends: 1000 [2023-11-29 01:40:48,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=91, Invalid=288, Unknown=1, NotChecked=0, Total=380 [2023-11-29 01:40:48,530 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 284 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:40:48,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 682 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 01:40:48,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2023-11-29 01:40:48,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 934. [2023-11-29 01:40:48,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 800 states have (on average 1.35375) internal successors, (1083), 855 states have internal predecessors, (1083), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-11-29 01:40:48,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1235 transitions. [2023-11-29 01:40:48,629 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1235 transitions. Word has length 173 [2023-11-29 01:40:48,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:40:48,630 INFO L495 AbstractCegarLoop]: Abstraction has 934 states and 1235 transitions. [2023-11-29 01:40:48,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 01:40:48,630 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1235 transitions. [2023-11-29 01:40:48,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-29 01:40:48,630 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:40:48,631 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:40:48,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2023-11-29 01:40:48,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:48,831 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:40:48,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:40:48,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1739200906, now seen corresponding path program 1 times [2023-11-29 01:40:48,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:40:48,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204215510] [2023-11-29 01:40:48,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:48,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:40:48,840 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:40:48,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1237786352] [2023-11-29 01:40:48,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:48,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:48,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:40:48,842 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:40:48,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2023-11-29 01:40:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:48,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:40:48,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:40:48,994 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 01:40:48,994 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:40:48,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:40:48,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204215510] [2023-11-29 01:40:48,994 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:40:48,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237786352] [2023-11-29 01:40:48,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237786352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:40:48,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:40:48,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:40:48,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829810827] [2023-11-29 01:40:48,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:40:48,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:40:48,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:40:48,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:40:48,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:40:48,996 INFO L87 Difference]: Start difference. First operand 934 states and 1235 transitions. Second operand has 8 states, 7 states have (on average 15.714285714285714) internal successors, (110), 8 states have internal predecessors, (110), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 01:40:50,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:40:50,696 INFO L93 Difference]: Finished difference Result 967 states and 1243 transitions. [2023-11-29 01:40:50,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:40:50,696 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.714285714285714) internal successors, (110), 8 states have internal predecessors, (110), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 174 [2023-11-29 01:40:50,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:40:50,697 INFO L225 Difference]: With dead ends: 967 [2023-11-29 01:40:50,697 INFO L226 Difference]: Without dead ends: 966 [2023-11-29 01:40:50,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:40:50,698 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 363 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:40:50,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1082 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 01:40:50,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2023-11-29 01:40:50,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 933. [2023-11-29 01:40:50,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 800 states have (on average 1.34875) internal successors, (1079), 854 states have internal predecessors, (1079), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-11-29 01:40:50,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1231 transitions. [2023-11-29 01:40:50,830 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1231 transitions. Word has length 174 [2023-11-29 01:40:50,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:40:50,831 INFO L495 AbstractCegarLoop]: Abstraction has 933 states and 1231 transitions. [2023-11-29 01:40:50,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.714285714285714) internal successors, (110), 8 states have internal predecessors, (110), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 01:40:50,831 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1231 transitions. [2023-11-29 01:40:50,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-29 01:40:50,832 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:40:50,832 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:40:50,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0 [2023-11-29 01:40:51,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:51,032 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:40:51,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:40:51,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1740863240, now seen corresponding path program 1 times [2023-11-29 01:40:51,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:40:51,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195227366] [2023-11-29 01:40:51,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:51,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:40:51,043 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:40:51,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1871086094] [2023-11-29 01:40:51,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:51,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:51,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:40:51,044 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:40:51,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2023-11-29 01:40:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:51,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 01:40:51,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:40:52,591 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 45 proven. 14 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-29 01:40:52,592 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:40:57,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:40:57,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195227366] [2023-11-29 01:40:57,095 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:40:57,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871086094] [2023-11-29 01:40:57,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871086094] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:40:57,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:40:57,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 01:40:57,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705131647] [2023-11-29 01:40:57,095 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:40:57,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:40:57,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:40:57,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:40:57,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=211, Unknown=1, NotChecked=0, Total=272 [2023-11-29 01:40:57,096 INFO L87 Difference]: Start difference. First operand 933 states and 1231 transitions. Second operand has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 01:41:00,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:00,857 INFO L93 Difference]: Finished difference Result 996 states and 1265 transitions. [2023-11-29 01:41:00,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:41:00,858 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 174 [2023-11-29 01:41:00,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:00,860 INFO L225 Difference]: With dead ends: 996 [2023-11-29 01:41:00,860 INFO L226 Difference]: Without dead ends: 994 [2023-11-29 01:41:00,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=84, Invalid=295, Unknown=1, NotChecked=0, Total=380 [2023-11-29 01:41:00,860 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 242 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 1727 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 1735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:00,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 830 Invalid, 1735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1727 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-29 01:41:00,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2023-11-29 01:41:00,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 933. [2023-11-29 01:41:00,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 800 states have (on average 1.345) internal successors, (1076), 854 states have internal predecessors, (1076), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-11-29 01:41:00,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1228 transitions. [2023-11-29 01:41:00,984 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1228 transitions. Word has length 174 [2023-11-29 01:41:00,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:00,985 INFO L495 AbstractCegarLoop]: Abstraction has 933 states and 1228 transitions. [2023-11-29 01:41:00,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 01:41:00,985 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1228 transitions. [2023-11-29 01:41:00,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-11-29 01:41:00,986 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:00,986 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:41:00,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Forceful destruction successful, exit code 0 [2023-11-29 01:41:01,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2023-11-29 01:41:01,187 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:41:01,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:01,187 INFO L85 PathProgramCache]: Analyzing trace with hash 304980523, now seen corresponding path program 1 times [2023-11-29 01:41:01,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:01,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52129345] [2023-11-29 01:41:01,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:01,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:01,200 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:41:01,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [988554269] [2023-11-29 01:41:01,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:01,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:01,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:01,202 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:41:01,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2023-11-29 01:41:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:01,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 01:41:01,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:01,500 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 01:41:01,500 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:41:05,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:41:05,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52129345] [2023-11-29 01:41:05,578 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:41:05,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988554269] [2023-11-29 01:41:05,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988554269] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:41:05,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:41:05,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 01:41:05,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466787315] [2023-11-29 01:41:05,579 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:41:05,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:41:05,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:41:05,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:41:05,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=86, Unknown=1, NotChecked=0, Total=110 [2023-11-29 01:41:05,580 INFO L87 Difference]: Start difference. First operand 933 states and 1228 transitions. Second operand has 8 states, 7 states have (on average 15.857142857142858) internal successors, (111), 8 states have internal predecessors, (111), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 01:41:07,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:07,675 INFO L93 Difference]: Finished difference Result 1085 states and 1388 transitions. [2023-11-29 01:41:07,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:41:07,676 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.857142857142858) internal successors, (111), 8 states have internal predecessors, (111), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 175 [2023-11-29 01:41:07,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:07,677 INFO L225 Difference]: With dead ends: 1085 [2023-11-29 01:41:07,677 INFO L226 Difference]: Without dead ends: 1082 [2023-11-29 01:41:07,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=107, Invalid=272, Unknown=1, NotChecked=0, Total=380 [2023-11-29 01:41:07,678 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 646 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:07,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 617 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 01:41:07,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2023-11-29 01:41:07,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 951. [2023-11-29 01:41:07,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 818 states have (on average 1.3386308068459658) internal successors, (1095), 872 states have internal predecessors, (1095), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-11-29 01:41:07,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1247 transitions. [2023-11-29 01:41:07,793 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1247 transitions. Word has length 175 [2023-11-29 01:41:07,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:07,793 INFO L495 AbstractCegarLoop]: Abstraction has 951 states and 1247 transitions. [2023-11-29 01:41:07,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.857142857142858) internal successors, (111), 8 states have internal predecessors, (111), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 01:41:07,794 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1247 transitions. [2023-11-29 01:41:07,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-29 01:41:07,795 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:07,795 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:41:07,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0 [2023-11-29 01:41:07,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2023-11-29 01:41:07,995 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:41:07,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:07,996 INFO L85 PathProgramCache]: Analyzing trace with hash -2067665622, now seen corresponding path program 1 times [2023-11-29 01:41:07,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:07,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955800706] [2023-11-29 01:41:07,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:07,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:08,003 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:41:08,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1638427519] [2023-11-29 01:41:08,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:08,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:08,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:08,004 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:41:08,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2023-11-29 01:41:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:08,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:41:08,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:09,289 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 01:41:09,289 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:41:10,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:41:10,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955800706] [2023-11-29 01:41:10,102 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:41:10,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638427519] [2023-11-29 01:41:10,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638427519] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:41:10,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:41:10,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 01:41:10,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066523846] [2023-11-29 01:41:10,102 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:41:10,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 01:41:10,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:41:10,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 01:41:10,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:41:10,103 INFO L87 Difference]: Start difference. First operand 951 states and 1247 transitions. Second operand has 11 states, 10 states have (on average 11.2) internal successors, (112), 11 states have internal predecessors, (112), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 01:41:14,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:14,597 INFO L93 Difference]: Finished difference Result 1016 states and 1281 transitions. [2023-11-29 01:41:14,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:41:14,598 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.2) internal successors, (112), 11 states have internal predecessors, (112), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 176 [2023-11-29 01:41:14,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:14,599 INFO L225 Difference]: With dead ends: 1016 [2023-11-29 01:41:14,599 INFO L226 Difference]: Without dead ends: 1012 [2023-11-29 01:41:14,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2023-11-29 01:41:14,599 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 123 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 1792 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 1798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:14,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 694 Invalid, 1798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1792 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-29 01:41:14,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2023-11-29 01:41:14,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 951. [2023-11-29 01:41:14,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 818 states have (on average 1.3276283618581908) internal successors, (1086), 872 states have internal predecessors, (1086), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-11-29 01:41:14,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1238 transitions. [2023-11-29 01:41:14,706 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1238 transitions. Word has length 176 [2023-11-29 01:41:14,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:14,706 INFO L495 AbstractCegarLoop]: Abstraction has 951 states and 1238 transitions. [2023-11-29 01:41:14,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.2) internal successors, (112), 11 states have internal predecessors, (112), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 01:41:14,706 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1238 transitions. [2023-11-29 01:41:14,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-11-29 01:41:14,707 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:14,707 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:41:14,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2023-11-29 01:41:14,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2023-11-29 01:41:14,907 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:41:14,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:14,908 INFO L85 PathProgramCache]: Analyzing trace with hash -2058136182, now seen corresponding path program 1 times [2023-11-29 01:41:14,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:14,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173296091] [2023-11-29 01:41:14,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:14,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:14,916 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:41:14,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [253153218] [2023-11-29 01:41:14,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:14,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:14,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:14,917 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:41:14,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2023-11-29 01:41:14,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:14,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:41:15,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:15,777 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 45 proven. 28 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-29 01:41:15,777 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:41:15,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:41:15,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173296091] [2023-11-29 01:41:15,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:41:15,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253153218] [2023-11-29 01:41:15,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253153218] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:41:15,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:41:15,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 01:41:15,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408327174] [2023-11-29 01:41:15,879 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:41:15,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:41:15,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:41:15,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:41:15,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:41:15,881 INFO L87 Difference]: Start difference. First operand 951 states and 1238 transitions. Second operand has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 01:41:17,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:17,427 INFO L93 Difference]: Finished difference Result 997 states and 1256 transitions. [2023-11-29 01:41:17,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:41:17,428 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 181 [2023-11-29 01:41:17,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:17,429 INFO L225 Difference]: With dead ends: 997 [2023-11-29 01:41:17,429 INFO L226 Difference]: Without dead ends: 995 [2023-11-29 01:41:17,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:41:17,430 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 227 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:17,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 740 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 01:41:17,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2023-11-29 01:41:17,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 951. [2023-11-29 01:41:17,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 818 states have (on average 1.323960880195599) internal successors, (1083), 872 states have internal predecessors, (1083), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-11-29 01:41:17,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1235 transitions. [2023-11-29 01:41:17,555 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1235 transitions. Word has length 181 [2023-11-29 01:41:17,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:17,556 INFO L495 AbstractCegarLoop]: Abstraction has 951 states and 1235 transitions. [2023-11-29 01:41:17,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 01:41:17,556 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1235 transitions. [2023-11-29 01:41:17,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-11-29 01:41:17,557 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:17,557 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:41:17,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2023-11-29 01:41:17,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:17,758 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:41:17,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:17,758 INFO L85 PathProgramCache]: Analyzing trace with hash 622287882, now seen corresponding path program 1 times [2023-11-29 01:41:17,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:17,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39545966] [2023-11-29 01:41:17,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:17,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:17,769 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:41:17,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [394268277] [2023-11-29 01:41:17,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:17,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:17,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:17,771 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:41:17,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2023-11-29 01:41:17,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:17,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:41:17,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:18,872 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 45 proven. 30 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-29 01:41:18,873 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:41:19,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:41:19,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39545966] [2023-11-29 01:41:19,155 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:41:19,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394268277] [2023-11-29 01:41:19,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394268277] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:41:19,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:41:19,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 01:41:19,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897950284] [2023-11-29 01:41:19,156 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:41:19,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:41:19,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:41:19,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:41:19,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:41:19,157 INFO L87 Difference]: Start difference. First operand 951 states and 1235 transitions. Second operand has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 01:41:21,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:21,278 INFO L93 Difference]: Finished difference Result 997 states and 1253 transitions. [2023-11-29 01:41:21,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:41:21,279 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 182 [2023-11-29 01:41:21,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:21,280 INFO L225 Difference]: With dead ends: 997 [2023-11-29 01:41:21,280 INFO L226 Difference]: Without dead ends: 995 [2023-11-29 01:41:21,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:41:21,281 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 223 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:21,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 797 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 01:41:21,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2023-11-29 01:41:21,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 951. [2023-11-29 01:41:21,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 818 states have (on average 1.3202933985330074) internal successors, (1080), 872 states have internal predecessors, (1080), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-11-29 01:41:21,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1232 transitions. [2023-11-29 01:41:21,420 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1232 transitions. Word has length 182 [2023-11-29 01:41:21,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:21,420 INFO L495 AbstractCegarLoop]: Abstraction has 951 states and 1232 transitions. [2023-11-29 01:41:21,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 01:41:21,421 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1232 transitions. [2023-11-29 01:41:21,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-11-29 01:41:21,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:21,422 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:41:21,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2023-11-29 01:41:21,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:21,622 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:41:21,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:21,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1499528590, now seen corresponding path program 1 times [2023-11-29 01:41:21,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:21,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147373149] [2023-11-29 01:41:21,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:21,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:21,636 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:41:21,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1256593992] [2023-11-29 01:41:21,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:21,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:21,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:21,638 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:41:21,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2023-11-29 01:41:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:21,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 01:41:21,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:24,198 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 60 proven. 30 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 01:41:24,199 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:41:24,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:41:24,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147373149] [2023-11-29 01:41:24,798 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:41:24,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256593992] [2023-11-29 01:41:24,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256593992] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:41:24,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:41:24,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 01:41:24,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090627612] [2023-11-29 01:41:24,798 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:41:24,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 01:41:24,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:41:24,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 01:41:24,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:41:24,799 INFO L87 Difference]: Start difference. First operand 951 states and 1232 transitions. Second operand has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 01:41:35,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:35,116 INFO L93 Difference]: Finished difference Result 985 states and 1236 transitions. [2023-11-29 01:41:35,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:41:35,117 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 185 [2023-11-29 01:41:35,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:35,118 INFO L225 Difference]: With dead ends: 985 [2023-11-29 01:41:35,119 INFO L226 Difference]: Without dead ends: 971 [2023-11-29 01:41:35,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2023-11-29 01:41:35,120 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 128 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 1432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:35,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 695 Invalid, 1432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2023-11-29 01:41:35,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2023-11-29 01:41:35,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 939. [2023-11-29 01:41:35,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 807 states have (on average 1.3159851301115242) internal successors, (1062), 861 states have internal predecessors, (1062), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-29 01:41:35,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1212 transitions. [2023-11-29 01:41:35,253 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1212 transitions. Word has length 185 [2023-11-29 01:41:35,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:35,253 INFO L495 AbstractCegarLoop]: Abstraction has 939 states and 1212 transitions. [2023-11-29 01:41:35,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 01:41:35,253 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1212 transitions. [2023-11-29 01:41:35,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-11-29 01:41:35,254 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:35,255 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:41:35,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2023-11-29 01:41:35,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:35,455 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:41:35,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:35,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1249517856, now seen corresponding path program 1 times [2023-11-29 01:41:35,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:35,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620132358] [2023-11-29 01:41:35,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:35,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:35,470 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:41:35,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1327765673] [2023-11-29 01:41:35,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:35,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:35,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:35,472 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:41:35,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2023-11-29 01:41:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:35,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:41:35,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:40,768 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 44 refuted. 42 times theorem prover too weak. 280 trivial. 0 not checked. [2023-11-29 01:41:40,768 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:41:45,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:41:45,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620132358] [2023-11-29 01:41:45,350 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:41:45,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327765673] [2023-11-29 01:41:45,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327765673] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:41:45,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:41:45,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 01:41:45,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713645544] [2023-11-29 01:41:45,350 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:41:45,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:41:45,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:41:45,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:41:45,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=138, Unknown=2, NotChecked=0, Total=182 [2023-11-29 01:41:45,351 INFO L87 Difference]: Start difference. First operand 939 states and 1212 transitions. Second operand has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 01:41:47,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:41:53,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:53,954 INFO L93 Difference]: Finished difference Result 981 states and 1230 transitions. [2023-11-29 01:41:53,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:41:53,955 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 203 [2023-11-29 01:41:53,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:53,956 INFO L225 Difference]: With dead ends: 981 [2023-11-29 01:41:53,956 INFO L226 Difference]: Without dead ends: 980 [2023-11-29 01:41:53,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=100, Invalid=278, Unknown=2, NotChecked=0, Total=380 [2023-11-29 01:41:53,957 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 172 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:53,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 788 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-11-29 01:41:53,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2023-11-29 01:41:54,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 939. [2023-11-29 01:41:54,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 807 states have (on average 1.3097893432465924) internal successors, (1057), 861 states have internal predecessors, (1057), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-29 01:41:54,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1207 transitions. [2023-11-29 01:41:54,071 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1207 transitions. Word has length 203 [2023-11-29 01:41:54,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:54,071 INFO L495 AbstractCegarLoop]: Abstraction has 939 states and 1207 transitions. [2023-11-29 01:41:54,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 01:41:54,071 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1207 transitions. [2023-11-29 01:41:54,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-11-29 01:41:54,072 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:54,072 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:41:54,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2023-11-29 01:41:54,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:54,273 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:41:54,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:54,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1804186786, now seen corresponding path program 1 times [2023-11-29 01:41:54,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:54,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824849450] [2023-11-29 01:41:54,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:54,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:54,282 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:41:54,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [765717041] [2023-11-29 01:41:54,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:54,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:54,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:54,283 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:41:54,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2023-11-29 01:41:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:54,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 01:41:54,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:55,096 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 15 proven. 90 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2023-11-29 01:41:55,096 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:42:00,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:42:00,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824849450] [2023-11-29 01:42:00,091 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:42:00,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765717041] [2023-11-29 01:42:00,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765717041] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:42:00,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:42:00,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 01:42:00,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910476045] [2023-11-29 01:42:00,092 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:42:00,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:42:00,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:42:00,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:42:00,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=192, Unknown=1, NotChecked=0, Total=240 [2023-11-29 01:42:00,093 INFO L87 Difference]: Start difference. First operand 939 states and 1207 transitions. Second operand has 10 states, 9 states have (on average 14.333333333333334) internal successors, (129), 10 states have internal predecessors, (129), 5 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 01:42:01,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:42:01,342 INFO L93 Difference]: Finished difference Result 986 states and 1241 transitions. [2023-11-29 01:42:01,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:42:01,343 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.333333333333334) internal successors, (129), 10 states have internal predecessors, (129), 5 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) Word has length 205 [2023-11-29 01:42:01,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:42:01,344 INFO L225 Difference]: With dead ends: 986 [2023-11-29 01:42:01,344 INFO L226 Difference]: Without dead ends: 985 [2023-11-29 01:42:01,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=51, Invalid=220, Unknown=1, NotChecked=0, Total=272 [2023-11-29 01:42:01,345 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 119 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:42:01,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 1157 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 01:42:01,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2023-11-29 01:42:01,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 939. [2023-11-29 01:42:01,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 807 states have (on average 1.3060718711276331) internal successors, (1054), 861 states have internal predecessors, (1054), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-29 01:42:01,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1204 transitions. [2023-11-29 01:42:01,461 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1204 transitions. Word has length 205 [2023-11-29 01:42:01,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:42:01,461 INFO L495 AbstractCegarLoop]: Abstraction has 939 states and 1204 transitions. [2023-11-29 01:42:01,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.333333333333334) internal successors, (129), 10 states have internal predecessors, (129), 5 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 01:42:01,461 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1204 transitions. [2023-11-29 01:42:01,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-11-29 01:42:01,462 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:42:01,462 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:42:01,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2023-11-29 01:42:01,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:42:01,663 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:42:01,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:42:01,663 INFO L85 PathProgramCache]: Analyzing trace with hash 95215632, now seen corresponding path program 1 times [2023-11-29 01:42:01,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:42:01,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811594389] [2023-11-29 01:42:01,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:01,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:42:01,676 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:42:01,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [767412192] [2023-11-29 01:42:01,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:01,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:42:01,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:42:01,677 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:42:01,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2023-11-29 01:42:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:01,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:42:01,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:42:04,007 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 42 proven. 50 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-11-29 01:42:04,007 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:42:05,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:42:05,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811594389] [2023-11-29 01:42:05,333 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:42:05,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767412192] [2023-11-29 01:42:05,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767412192] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:42:05,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:42:05,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 01:42:05,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856356636] [2023-11-29 01:42:05,334 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:42:05,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 01:42:05,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:42:05,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 01:42:05,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:42:05,335 INFO L87 Difference]: Start difference. First operand 939 states and 1204 transitions. Second operand has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 01:42:09,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:42:09,350 INFO L93 Difference]: Finished difference Result 992 states and 1238 transitions. [2023-11-29 01:42:09,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:42:09,351 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 206 [2023-11-29 01:42:09,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:42:09,352 INFO L225 Difference]: With dead ends: 992 [2023-11-29 01:42:09,352 INFO L226 Difference]: Without dead ends: 991 [2023-11-29 01:42:09,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:42:09,353 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 132 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:42:09,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 759 Invalid, 1250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 01:42:09,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2023-11-29 01:42:09,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 939. [2023-11-29 01:42:09,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 807 states have (on average 1.2998760842627013) internal successors, (1049), 861 states have internal predecessors, (1049), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-29 01:42:09,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1199 transitions. [2023-11-29 01:42:09,504 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1199 transitions. Word has length 206 [2023-11-29 01:42:09,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:42:09,504 INFO L495 AbstractCegarLoop]: Abstraction has 939 states and 1199 transitions. [2023-11-29 01:42:09,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 01:42:09,504 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1199 transitions. [2023-11-29 01:42:09,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-11-29 01:42:09,505 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:42:09,505 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:42:09,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2023-11-29 01:42:09,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable83 [2023-11-29 01:42:09,706 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:42:09,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:42:09,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1343282588, now seen corresponding path program 1 times [2023-11-29 01:42:09,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:42:09,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646197023] [2023-11-29 01:42:09,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:09,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:42:09,719 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:42:09,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [181648311] [2023-11-29 01:42:09,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:09,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:42:09,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:42:09,721 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:42:09,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2023-11-29 01:42:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:09,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 01:42:09,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:42:13,261 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-11-29 01:42:13,262 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:42:16,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:42:16,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646197023] [2023-11-29 01:42:16,600 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:42:16,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181648311] [2023-11-29 01:42:16,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181648311] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:42:16,600 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:42:16,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 01:42:16,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059354708] [2023-11-29 01:42:16,600 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:42:16,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:42:16,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:42:16,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:42:16,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:42:16,602 INFO L87 Difference]: Start difference. First operand 939 states and 1199 transitions. Second operand has 13 states, 12 states have (on average 10.666666666666666) internal successors, (128), 13 states have internal predecessors, (128), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 01:42:27,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:42:31,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:42:33,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:42:36,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:42:36,668 INFO L93 Difference]: Finished difference Result 972 states and 1217 transitions. [2023-11-29 01:42:36,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:42:36,669 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.666666666666666) internal successors, (128), 13 states have internal predecessors, (128), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 207 [2023-11-29 01:42:36,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:42:36,670 INFO L225 Difference]: With dead ends: 972 [2023-11-29 01:42:36,670 INFO L226 Difference]: Without dead ends: 971 [2023-11-29 01:42:36,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=133, Invalid=736, Unknown=1, NotChecked=0, Total=870 [2023-11-29 01:42:36,670 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 240 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 2238 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 2256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2238 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:42:36,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 602 Invalid, 2256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2238 Invalid, 2 Unknown, 0 Unchecked, 13.9s Time] [2023-11-29 01:42:36,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2023-11-29 01:42:36,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 939. [2023-11-29 01:42:36,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 807 states have (on average 1.2961586121437423) internal successors, (1046), 861 states have internal predecessors, (1046), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-29 01:42:36,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1196 transitions. [2023-11-29 01:42:36,791 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1196 transitions. Word has length 207 [2023-11-29 01:42:36,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:42:36,791 INFO L495 AbstractCegarLoop]: Abstraction has 939 states and 1196 transitions. [2023-11-29 01:42:36,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.666666666666666) internal successors, (128), 13 states have internal predecessors, (128), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 01:42:36,791 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1196 transitions. [2023-11-29 01:42:36,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-29 01:42:36,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:42:36,792 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:42:36,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Ended with exit code 0 [2023-11-29 01:42:36,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2023-11-29 01:42:36,993 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:42:36,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:42:36,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1307912850, now seen corresponding path program 1 times [2023-11-29 01:42:36,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:42:36,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948168947] [2023-11-29 01:42:36,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:36,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:42:37,003 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:42:37,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [897331964] [2023-11-29 01:42:37,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:37,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:42:37,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:42:37,004 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:42:37,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2023-11-29 01:42:37,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:37,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:42:37,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:42:39,137 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 42 proven. 54 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-11-29 01:42:39,137 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:42:39,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:42:39,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948168947] [2023-11-29 01:42:39,372 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:42:39,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897331964] [2023-11-29 01:42:39,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897331964] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:42:39,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:42:39,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 01:42:39,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096273176] [2023-11-29 01:42:39,372 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:42:39,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:42:39,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:42:39,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:42:39,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:42:39,373 INFO L87 Difference]: Start difference. First operand 939 states and 1196 transitions. Second operand has 12 states, 11 states have (on average 11.727272727272727) internal successors, (129), 12 states have internal predecessors, (129), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 01:42:47,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:42:47,280 INFO L93 Difference]: Finished difference Result 991 states and 1230 transitions. [2023-11-29 01:42:47,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:42:47,280 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.727272727272727) internal successors, (129), 12 states have internal predecessors, (129), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 208 [2023-11-29 01:42:47,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:42:47,282 INFO L225 Difference]: With dead ends: 991 [2023-11-29 01:42:47,282 INFO L226 Difference]: Without dead ends: 990 [2023-11-29 01:42:47,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=98, Invalid=322, Unknown=0, NotChecked=0, Total=420 [2023-11-29 01:42:47,283 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 184 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 1585 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:42:47,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 856 Invalid, 1593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1585 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-11-29 01:42:47,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2023-11-29 01:42:47,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 939. [2023-11-29 01:42:47,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 807 states have (on average 1.2899628252788105) internal successors, (1041), 861 states have internal predecessors, (1041), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-29 01:42:47,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1191 transitions. [2023-11-29 01:42:47,442 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1191 transitions. Word has length 208 [2023-11-29 01:42:47,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:42:47,442 INFO L495 AbstractCegarLoop]: Abstraction has 939 states and 1191 transitions. [2023-11-29 01:42:47,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.727272727272727) internal successors, (129), 12 states have internal predecessors, (129), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 01:42:47,442 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1191 transitions. [2023-11-29 01:42:47,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-11-29 01:42:47,444 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:42:47,444 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:42:47,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2023-11-29 01:42:47,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable85 [2023-11-29 01:42:47,644 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:42:47,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:42:47,645 INFO L85 PathProgramCache]: Analyzing trace with hash 88524264, now seen corresponding path program 1 times [2023-11-29 01:42:47,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:42:47,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132608561] [2023-11-29 01:42:47,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:47,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:42:47,656 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:42:47,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1861981008] [2023-11-29 01:42:47,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:47,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:42:47,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:42:47,658 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:42:47,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2023-11-29 01:42:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:47,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-29 01:42:47,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:42:53,033 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 45 proven. 102 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 01:42:53,033 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:42:56,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:42:56,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132608561] [2023-11-29 01:42:56,029 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:42:56,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861981008] [2023-11-29 01:42:56,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861981008] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:42:56,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:42:56,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 01:42:56,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888038641] [2023-11-29 01:42:56,030 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:42:56,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 01:42:56,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:42:56,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 01:42:56,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=569, Unknown=0, NotChecked=0, Total=650 [2023-11-29 01:42:56,032 INFO L87 Difference]: Start difference. First operand 939 states and 1191 transitions. Second operand has 19 states, 18 states have (on average 7.666666666666667) internal successors, (138), 19 states have internal predecessors, (138), 5 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 01:43:07,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:07,160 INFO L93 Difference]: Finished difference Result 970 states and 1209 transitions. [2023-11-29 01:43:07,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 01:43:07,161 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 7.666666666666667) internal successors, (138), 19 states have internal predecessors, (138), 5 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) Word has length 211 [2023-11-29 01:43:07,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:07,162 INFO L225 Difference]: With dead ends: 970 [2023-11-29 01:43:07,162 INFO L226 Difference]: Without dead ends: 965 [2023-11-29 01:43:07,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=142, Invalid=980, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 01:43:07,163 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 485 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 3369 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 3397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 3369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:07,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 588 Invalid, 3397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 3369 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2023-11-29 01:43:07,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2023-11-29 01:43:07,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 939. [2023-11-29 01:43:07,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 807 states have (on average 1.2738537794299876) internal successors, (1028), 861 states have internal predecessors, (1028), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-29 01:43:07,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1178 transitions. [2023-11-29 01:43:07,338 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1178 transitions. Word has length 211 [2023-11-29 01:43:07,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:43:07,338 INFO L495 AbstractCegarLoop]: Abstraction has 939 states and 1178 transitions. [2023-11-29 01:43:07,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 7.666666666666667) internal successors, (138), 19 states have internal predecessors, (138), 5 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 01:43:07,339 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1178 transitions. [2023-11-29 01:43:07,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-11-29 01:43:07,340 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:07,340 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:43:07,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2023-11-29 01:43:07,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:43:07,541 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:43:07,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:07,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1550714986, now seen corresponding path program 1 times [2023-11-29 01:43:07,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:43:07,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820364322] [2023-11-29 01:43:07,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:07,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:43:07,554 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:43:07,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [971414188] [2023-11-29 01:43:07,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:07,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:43:07,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:43:07,555 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:43:07,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2023-11-29 01:43:07,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:07,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 01:43:07,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:13,983 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 75 proven. 74 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 01:43:13,983 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:43:19,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:43:19,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820364322] [2023-11-29 01:43:19,610 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:43:19,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971414188] [2023-11-29 01:43:19,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971414188] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:43:19,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:43:19,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 01:43:19,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881521982] [2023-11-29 01:43:19,611 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:43:19,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 01:43:19,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:43:19,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 01:43:19,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=395, Unknown=1, NotChecked=0, Total=462 [2023-11-29 01:43:19,612 INFO L87 Difference]: Start difference. First operand 939 states and 1178 transitions. Second operand has 19 states, 18 states have (on average 7.722222222222222) internal successors, (139), 18 states have internal predecessors, (139), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 01:43:33,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:33,901 INFO L93 Difference]: Finished difference Result 979 states and 1196 transitions. [2023-11-29 01:43:33,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 01:43:33,902 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 7.722222222222222) internal successors, (139), 18 states have internal predecessors, (139), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) Word has length 212 [2023-11-29 01:43:33,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:33,903 INFO L225 Difference]: With dead ends: 979 [2023-11-29 01:43:33,903 INFO L226 Difference]: Without dead ends: 976 [2023-11-29 01:43:33,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=130, Invalid=739, Unknown=1, NotChecked=0, Total=870 [2023-11-29 01:43:33,903 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 267 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 3308 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 3324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:33,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 988 Invalid, 3324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3308 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2023-11-29 01:43:33,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2023-11-29 01:43:34,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 939. [2023-11-29 01:43:34,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 807 states have (on average 1.258983890954151) internal successors, (1016), 861 states have internal predecessors, (1016), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-29 01:43:34,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1166 transitions. [2023-11-29 01:43:34,039 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1166 transitions. Word has length 212 [2023-11-29 01:43:34,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:43:34,039 INFO L495 AbstractCegarLoop]: Abstraction has 939 states and 1166 transitions. [2023-11-29 01:43:34,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 7.722222222222222) internal successors, (139), 18 states have internal predecessors, (139), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 01:43:34,040 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1166 transitions. [2023-11-29 01:43:34,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-11-29 01:43:34,041 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:34,041 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:43:34,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2023-11-29 01:43:34,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:43:34,241 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:43:34,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:34,242 INFO L85 PathProgramCache]: Analyzing trace with hash 539259294, now seen corresponding path program 1 times [2023-11-29 01:43:34,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:43:34,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693045752] [2023-11-29 01:43:34,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:34,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:43:34,253 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:43:34,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [878675827] [2023-11-29 01:43:34,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:34,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:43:34,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:43:34,254 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:43:34,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2023-11-29 01:43:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:34,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:43:34,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:34,899 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 72 proven. 78 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-29 01:43:34,899 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:43:39,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:43:39,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693045752] [2023-11-29 01:43:39,276 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:43:39,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878675827] [2023-11-29 01:43:39,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878675827] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:43:39,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:43:39,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 01:43:39,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687375681] [2023-11-29 01:43:39,277 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:43:39,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:43:39,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:43:39,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:43:39,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=167, Unknown=1, NotChecked=0, Total=210 [2023-11-29 01:43:39,278 INFO L87 Difference]: Start difference. First operand 939 states and 1166 transitions. Second operand has 12 states, 11 states have (on average 13.090909090909092) internal successors, (144), 12 states have internal predecessors, (144), 4 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-29 01:43:44,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:44,207 INFO L93 Difference]: Finished difference Result 1243 states and 1556 transitions. [2023-11-29 01:43:44,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 01:43:44,207 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 13.090909090909092) internal successors, (144), 12 states have internal predecessors, (144), 4 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 220 [2023-11-29 01:43:44,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:44,209 INFO L225 Difference]: With dead ends: 1243 [2023-11-29 01:43:44,209 INFO L226 Difference]: Without dead ends: 1238 [2023-11-29 01:43:44,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=144, Invalid=455, Unknown=1, NotChecked=0, Total=600 [2023-11-29 01:43:44,209 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 377 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 1551 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:44,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 1030 Invalid, 1575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1551 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-29 01:43:44,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2023-11-29 01:43:44,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1150. [2023-11-29 01:43:44,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 1002 states have (on average 1.318363273453094) internal successors, (1321), 1056 states have internal predecessors, (1321), 91 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2023-11-29 01:43:44,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 1503 transitions. [2023-11-29 01:43:44,384 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 1503 transitions. Word has length 220 [2023-11-29 01:43:44,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:43:44,384 INFO L495 AbstractCegarLoop]: Abstraction has 1150 states and 1503 transitions. [2023-11-29 01:43:44,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 13.090909090909092) internal successors, (144), 12 states have internal predecessors, (144), 4 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-29 01:43:44,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 1503 transitions. [2023-11-29 01:43:44,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-11-29 01:43:44,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:44,385 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:43:44,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0 [2023-11-29 01:43:44,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2023-11-29 01:43:44,586 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:43:44,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:44,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1860002126, now seen corresponding path program 1 times [2023-11-29 01:43:44,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:43:44,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150108668] [2023-11-29 01:43:44,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:44,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:43:44,595 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:43:44,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [610649776] [2023-11-29 01:43:44,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:44,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:43:44,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:43:44,596 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:43:44,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2023-11-29 01:43:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:44,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:43:44,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:44,817 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 01:43:44,817 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:43:45,033 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 01:43:45,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:43:45,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150108668] [2023-11-29 01:43:45,033 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:43:45,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610649776] [2023-11-29 01:43:45,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610649776] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:43:45,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:43:45,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 01:43:45,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025836173] [2023-11-29 01:43:45,034 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:43:45,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:43:45,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:43:45,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:43:45,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:43:45,036 INFO L87 Difference]: Start difference. First operand 1150 states and 1503 transitions. Second operand has 8 states, 7 states have (on average 38.285714285714285) internal successors, (268), 8 states have internal predecessors, (268), 7 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2023-11-29 01:43:46,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:46,188 INFO L93 Difference]: Finished difference Result 2772 states and 3501 transitions. [2023-11-29 01:43:46,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:43:46,188 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 38.285714285714285) internal successors, (268), 8 states have internal predecessors, (268), 7 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) Word has length 225 [2023-11-29 01:43:46,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:46,193 INFO L225 Difference]: With dead ends: 2772 [2023-11-29 01:43:46,193 INFO L226 Difference]: Without dead ends: 2771 [2023-11-29 01:43:46,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:43:46,195 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 575 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:46,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 723 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 01:43:46,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2771 states. [2023-11-29 01:43:46,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2771 to 2285. [2023-11-29 01:43:46,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2285 states, 2037 states have (on average 1.3240058910162003) internal successors, (2697), 2091 states have internal predecessors, (2697), 191 states have call successors, (191), 2 states have call predecessors, (191), 2 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) [2023-11-29 01:43:46,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2285 states to 2285 states and 3079 transitions. [2023-11-29 01:43:46,626 INFO L78 Accepts]: Start accepts. Automaton has 2285 states and 3079 transitions. Word has length 225 [2023-11-29 01:43:46,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:43:46,627 INFO L495 AbstractCegarLoop]: Abstraction has 2285 states and 3079 transitions. [2023-11-29 01:43:46,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 38.285714285714285) internal successors, (268), 8 states have internal predecessors, (268), 7 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2023-11-29 01:43:46,627 INFO L276 IsEmpty]: Start isEmpty. Operand 2285 states and 3079 transitions. [2023-11-29 01:43:46,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2023-11-29 01:43:46,628 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:46,628 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:43:46,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Ended with exit code 0 [2023-11-29 01:43:46,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2023-11-29 01:43:46,829 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:43:46,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:46,829 INFO L85 PathProgramCache]: Analyzing trace with hash -954272990, now seen corresponding path program 2 times [2023-11-29 01:43:46,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:43:46,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750870320] [2023-11-29 01:43:46,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:46,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:43:46,843 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:43:46,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1235614624] [2023-11-29 01:43:46,843 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:43:46,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:43:46,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:43:46,845 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:43:46,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2023-11-29 01:43:46,940 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:43:46,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:43:46,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:43:46,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:47,391 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 01:43:47,391 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:43:47,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:43:47,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750870320] [2023-11-29 01:43:47,595 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:43:47,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235614624] [2023-11-29 01:43:47,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235614624] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:43:47,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:43:47,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 01:43:47,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202336806] [2023-11-29 01:43:47,595 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:43:47,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:43:47,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:43:47,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:43:47,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:43:47,597 INFO L87 Difference]: Start difference. First operand 2285 states and 3079 transitions. Second operand has 6 states, 5 states have (on average 28.8) internal successors, (144), 6 states have internal predecessors, (144), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 01:43:48,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:48,282 INFO L93 Difference]: Finished difference Result 2299 states and 3089 transitions. [2023-11-29 01:43:48,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:43:48,283 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 28.8) internal successors, (144), 6 states have internal predecessors, (144), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 228 [2023-11-29 01:43:48,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:48,285 INFO L225 Difference]: With dead ends: 2299 [2023-11-29 01:43:48,285 INFO L226 Difference]: Without dead ends: 2298 [2023-11-29 01:43:48,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:43:48,286 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 108 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:48,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 362 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:43:48,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2298 states. [2023-11-29 01:43:48,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2298 to 2292. [2023-11-29 01:43:48,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2292 states, 2044 states have (on average 1.3228962818003913) internal successors, (2704), 2098 states have internal predecessors, (2704), 191 states have call successors, (191), 2 states have call predecessors, (191), 2 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) [2023-11-29 01:43:48,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2292 states to 2292 states and 3086 transitions. [2023-11-29 01:43:48,702 INFO L78 Accepts]: Start accepts. Automaton has 2292 states and 3086 transitions. Word has length 228 [2023-11-29 01:43:48,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:43:48,702 INFO L495 AbstractCegarLoop]: Abstraction has 2292 states and 3086 transitions. [2023-11-29 01:43:48,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 28.8) internal successors, (144), 6 states have internal predecessors, (144), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 01:43:48,703 INFO L276 IsEmpty]: Start isEmpty. Operand 2292 states and 3086 transitions. [2023-11-29 01:43:48,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-11-29 01:43:48,704 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:48,705 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:43:48,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Ended with exit code 0 [2023-11-29 01:43:48,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:43:48,905 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:43:48,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:48,905 INFO L85 PathProgramCache]: Analyzing trace with hash 670607993, now seen corresponding path program 1 times [2023-11-29 01:43:48,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:43:48,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426104256] [2023-11-29 01:43:48,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:48,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:43:48,921 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:43:48,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1456167471] [2023-11-29 01:43:48,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:48,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:43:48,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:43:48,922 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:43:48,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2023-11-29 01:43:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:49,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:43:49,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:49,510 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 42 proven. 88 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 01:43:49,511 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:43:49,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:43:49,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426104256] [2023-11-29 01:43:49,661 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:43:49,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456167471] [2023-11-29 01:43:49,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456167471] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:43:49,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:43:49,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 01:43:49,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333150806] [2023-11-29 01:43:49,662 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:43:49,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:43:49,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:43:49,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:43:49,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:43:49,663 INFO L87 Difference]: Start difference. First operand 2292 states and 3086 transitions. Second operand has 7 states, 6 states have (on average 24.333333333333332) internal successors, (146), 7 states have internal predecessors, (146), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 01:43:51,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:51,622 INFO L93 Difference]: Finished difference Result 2343 states and 3122 transitions. [2023-11-29 01:43:51,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:43:51,623 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 24.333333333333332) internal successors, (146), 7 states have internal predecessors, (146), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 230 [2023-11-29 01:43:51,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:51,625 INFO L225 Difference]: With dead ends: 2343 [2023-11-29 01:43:51,625 INFO L226 Difference]: Without dead ends: 2341 [2023-11-29 01:43:51,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:43:51,626 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 72 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:51,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 539 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 01:43:51,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2023-11-29 01:43:52,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 2300. [2023-11-29 01:43:52,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2300 states, 2052 states have (on average 1.3162768031189085) internal successors, (2701), 2106 states have internal predecessors, (2701), 191 states have call successors, (191), 2 states have call predecessors, (191), 2 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) [2023-11-29 01:43:52,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2300 states to 2300 states and 3083 transitions. [2023-11-29 01:43:52,044 INFO L78 Accepts]: Start accepts. Automaton has 2300 states and 3083 transitions. Word has length 230 [2023-11-29 01:43:52,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:43:52,045 INFO L495 AbstractCegarLoop]: Abstraction has 2300 states and 3083 transitions. [2023-11-29 01:43:52,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 24.333333333333332) internal successors, (146), 7 states have internal predecessors, (146), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 01:43:52,045 INFO L276 IsEmpty]: Start isEmpty. Operand 2300 states and 3083 transitions. [2023-11-29 01:43:52,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-11-29 01:43:52,047 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:52,048 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:43:52,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Ended with exit code 0 [2023-11-29 01:43:52,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:43:52,248 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:43:52,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:52,249 INFO L85 PathProgramCache]: Analyzing trace with hash 670609595, now seen corresponding path program 1 times [2023-11-29 01:43:52,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:43:52,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658037835] [2023-11-29 01:43:52,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:52,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:43:52,266 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:43:52,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [627394834] [2023-11-29 01:43:52,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:52,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:43:52,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:43:52,267 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:43:52,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2023-11-29 01:43:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:52,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 01:43:52,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:52,920 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 01:43:52,920 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:43:53,295 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 01:43:53,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:43:53,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658037835] [2023-11-29 01:43:53,295 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:43:53,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627394834] [2023-11-29 01:43:53,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627394834] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:43:53,296 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:43:53,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-29 01:43:53,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188407633] [2023-11-29 01:43:53,296 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:43:53,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 01:43:53,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:43:53,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 01:43:53,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:43:53,298 INFO L87 Difference]: Start difference. First operand 2300 states and 3083 transitions. Second operand has 16 states, 15 states have (on average 19.066666666666666) internal successors, (286), 16 states have internal predecessors, (286), 12 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2023-11-29 01:44:02,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:44:02,314 INFO L93 Difference]: Finished difference Result 4371 states and 6092 transitions. [2023-11-29 01:44:02,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-11-29 01:44:02,315 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 19.066666666666666) internal successors, (286), 16 states have internal predecessors, (286), 12 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) Word has length 230 [2023-11-29 01:44:02,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:44:02,320 INFO L225 Difference]: With dead ends: 4371 [2023-11-29 01:44:02,320 INFO L226 Difference]: Without dead ends: 4370 [2023-11-29 01:44:02,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 800 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=881, Invalid=1981, Unknown=0, NotChecked=0, Total=2862 [2023-11-29 01:44:02,322 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 2247 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 1861 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2251 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 2010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:44:02,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2251 Valid, 1019 Invalid, 2010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1861 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-11-29 01:44:02,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4370 states. [2023-11-29 01:44:02,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4370 to 2696. [2023-11-29 01:44:02,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2696 states, 2416 states have (on average 1.3737582781456954) internal successors, (3319), 2470 states have internal predecessors, (3319), 223 states have call successors, (223), 2 states have call predecessors, (223), 2 states have return successors, (223), 223 states have call predecessors, (223), 223 states have call successors, (223) [2023-11-29 01:44:02,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2696 states to 2696 states and 3765 transitions. [2023-11-29 01:44:02,844 INFO L78 Accepts]: Start accepts. Automaton has 2696 states and 3765 transitions. Word has length 230 [2023-11-29 01:44:02,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:44:02,845 INFO L495 AbstractCegarLoop]: Abstraction has 2696 states and 3765 transitions. [2023-11-29 01:44:02,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 19.066666666666666) internal successors, (286), 16 states have internal predecessors, (286), 12 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2023-11-29 01:44:02,845 INFO L276 IsEmpty]: Start isEmpty. Operand 2696 states and 3765 transitions. [2023-11-29 01:44:02,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-11-29 01:44:02,847 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:44:02,847 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:02,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2023-11-29 01:44:03,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable92 [2023-11-29 01:44:03,048 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:44:03,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:03,048 INFO L85 PathProgramCache]: Analyzing trace with hash -867160671, now seen corresponding path program 2 times [2023-11-29 01:44:03,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:03,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115716447] [2023-11-29 01:44:03,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:03,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:03,060 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:44:03,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [938087551] [2023-11-29 01:44:03,061 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:44:03,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:44:03,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:44:03,062 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:44:03,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2023-11-29 01:44:03,165 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:44:03,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:44:03,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:44:03,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:44:03,591 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 44 proven. 86 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 01:44:03,592 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:44:03,927 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 01:44:03,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:03,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115716447] [2023-11-29 01:44:03,928 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:44:03,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938087551] [2023-11-29 01:44:03,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938087551] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:44:03,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:44:03,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-29 01:44:03,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856818276] [2023-11-29 01:44:03,929 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:44:03,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 01:44:03,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:03,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 01:44:03,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:44:03,931 INFO L87 Difference]: Start difference. First operand 2696 states and 3765 transitions. Second operand has 16 states, 15 states have (on average 19.066666666666666) internal successors, (286), 16 states have internal predecessors, (286), 10 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 10 states have call predecessors, (36), 10 states have call successors, (36) [2023-11-29 01:44:08,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:44:08,621 INFO L93 Difference]: Finished difference Result 4299 states and 5892 transitions. [2023-11-29 01:44:08,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-29 01:44:08,621 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 19.066666666666666) internal successors, (286), 16 states have internal predecessors, (286), 10 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 10 states have call predecessors, (36), 10 states have call successors, (36) Word has length 230 [2023-11-29 01:44:08,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:44:08,626 INFO L225 Difference]: With dead ends: 4299 [2023-11-29 01:44:08,626 INFO L226 Difference]: Without dead ends: 4298 [2023-11-29 01:44:08,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=539, Invalid=1717, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 01:44:08,629 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 1859 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 2057 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1863 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 2173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:44:08,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1863 Valid, 1526 Invalid, 2173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 2057 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-29 01:44:08,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4298 states. [2023-11-29 01:44:09,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4298 to 3235. [2023-11-29 01:44:09,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3235 states, 2911 states have (on average 1.3964273445551356) internal successors, (4065), 2965 states have internal predecessors, (4065), 267 states have call successors, (267), 2 states have call predecessors, (267), 2 states have return successors, (267), 267 states have call predecessors, (267), 267 states have call successors, (267) [2023-11-29 01:44:09,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3235 states to 3235 states and 4599 transitions. [2023-11-29 01:44:09,215 INFO L78 Accepts]: Start accepts. Automaton has 3235 states and 4599 transitions. Word has length 230 [2023-11-29 01:44:09,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:44:09,215 INFO L495 AbstractCegarLoop]: Abstraction has 3235 states and 4599 transitions. [2023-11-29 01:44:09,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 19.066666666666666) internal successors, (286), 16 states have internal predecessors, (286), 10 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 10 states have call predecessors, (36), 10 states have call successors, (36) [2023-11-29 01:44:09,215 INFO L276 IsEmpty]: Start isEmpty. Operand 3235 states and 4599 transitions. [2023-11-29 01:44:09,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-11-29 01:44:09,217 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:44:09,217 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:09,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2023-11-29 01:44:09,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:44:09,417 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:44:09,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:09,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1652299389, now seen corresponding path program 3 times [2023-11-29 01:44:09,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:09,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656586738] [2023-11-29 01:44:09,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:09,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:09,432 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:44:09,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1348087454] [2023-11-29 01:44:09,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 01:44:09,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:44:09,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:44:09,433 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:44:09,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2023-11-29 01:44:09,490 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 01:44:09,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:44:09,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:44:09,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:44:09,584 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-11-29 01:44:09,584 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:44:09,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:09,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656586738] [2023-11-29 01:44:09,584 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:44:09,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348087454] [2023-11-29 01:44:09,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348087454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:09,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:09,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:44:09,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645451937] [2023-11-29 01:44:09,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:09,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:44:09,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:09,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:44:09,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:44:09,585 INFO L87 Difference]: Start difference. First operand 3235 states and 4599 transitions. Second operand has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 01:44:10,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:44:10,333 INFO L93 Difference]: Finished difference Result 3235 states and 4599 transitions. [2023-11-29 01:44:10,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:44:10,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 230 [2023-11-29 01:44:10,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:44:10,338 INFO L225 Difference]: With dead ends: 3235 [2023-11-29 01:44:10,338 INFO L226 Difference]: Without dead ends: 3234 [2023-11-29 01:44:10,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:44:10,339 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 40 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:44:10,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 274 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:44:10,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3234 states. [2023-11-29 01:44:10,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3234 to 3234. [2023-11-29 01:44:10,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3234 states, 2911 states have (on average 1.3847475094469255) internal successors, (4031), 2964 states have internal predecessors, (4031), 267 states have call successors, (267), 2 states have call predecessors, (267), 2 states have return successors, (267), 267 states have call predecessors, (267), 267 states have call successors, (267) [2023-11-29 01:44:10,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3234 states to 3234 states and 4565 transitions. [2023-11-29 01:44:10,991 INFO L78 Accepts]: Start accepts. Automaton has 3234 states and 4565 transitions. Word has length 230 [2023-11-29 01:44:10,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:44:10,992 INFO L495 AbstractCegarLoop]: Abstraction has 3234 states and 4565 transitions. [2023-11-29 01:44:10,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 01:44:10,992 INFO L276 IsEmpty]: Start isEmpty. Operand 3234 states and 4565 transitions. [2023-11-29 01:44:10,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-11-29 01:44:10,993 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:44:10,993 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:10,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Forceful destruction successful, exit code 0 [2023-11-29 01:44:11,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:44:11,194 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:44:11,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:11,194 INFO L85 PathProgramCache]: Analyzing trace with hash -685988529, now seen corresponding path program 1 times [2023-11-29 01:44:11,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:11,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680735175] [2023-11-29 01:44:11,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:11,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:11,208 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:44:11,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [984575662] [2023-11-29 01:44:11,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:11,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:44:11,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:44:11,210 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:44:11,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2023-11-29 01:44:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:11,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 01:44:11,315 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:44:11,792 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 01:44:11,792 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:44:44,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:44,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680735175] [2023-11-29 01:44:44,268 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:44:44,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984575662] [2023-11-29 01:44:44,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984575662] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:44:44,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:44:44,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 01:44:44,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849456343] [2023-11-29 01:44:44,269 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:44:44,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:44:44,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:44,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:44:44,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=84, Unknown=8, NotChecked=0, Total=132 [2023-11-29 01:44:44,270 INFO L87 Difference]: Start difference. First operand 3234 states and 4565 transitions. Second operand has 7 states, 6 states have (on average 24.5) internal successors, (147), 7 states have internal predecessors, (147), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 01:44:45,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:44:45,962 INFO L93 Difference]: Finished difference Result 3288 states and 4597 transitions. [2023-11-29 01:44:45,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:44:45,962 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 24.5) internal successors, (147), 7 states have internal predecessors, (147), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 231 [2023-11-29 01:44:45,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:44:45,966 INFO L225 Difference]: With dead ends: 3288 [2023-11-29 01:44:45,967 INFO L226 Difference]: Without dead ends: 3287 [2023-11-29 01:44:45,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 32.3s TimeCoverageRelationStatistics Valid=94, Invalid=170, Unknown=8, NotChecked=0, Total=272 [2023-11-29 01:44:45,968 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 180 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:44:45,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 375 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 01:44:45,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2023-11-29 01:44:46,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 3239. [2023-11-29 01:44:46,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3239 states, 2916 states have (on average 1.3837448559670782) internal successors, (4035), 2969 states have internal predecessors, (4035), 267 states have call successors, (267), 2 states have call predecessors, (267), 2 states have return successors, (267), 267 states have call predecessors, (267), 267 states have call successors, (267) [2023-11-29 01:44:46,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3239 states to 3239 states and 4569 transitions. [2023-11-29 01:44:46,561 INFO L78 Accepts]: Start accepts. Automaton has 3239 states and 4569 transitions. Word has length 231 [2023-11-29 01:44:46,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:44:46,561 INFO L495 AbstractCegarLoop]: Abstraction has 3239 states and 4569 transitions. [2023-11-29 01:44:46,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 24.5) internal successors, (147), 7 states have internal predecessors, (147), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 01:44:46,562 INFO L276 IsEmpty]: Start isEmpty. Operand 3239 states and 4569 transitions. [2023-11-29 01:44:46,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-11-29 01:44:46,563 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:44:46,563 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:46,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2023-11-29 01:44:46,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:44:46,764 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:44:46,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:46,764 INFO L85 PathProgramCache]: Analyzing trace with hash 209192251, now seen corresponding path program 1 times [2023-11-29 01:44:46,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:46,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064705761] [2023-11-29 01:44:46,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:46,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:46,774 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:44:46,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1111831885] [2023-11-29 01:44:46,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:46,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:44:46,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:44:46,776 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:44:46,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2023-11-29 01:44:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:46,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:44:46,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:44:47,056 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2023-11-29 01:44:47,056 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:44:55,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:55,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064705761] [2023-11-29 01:44:55,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:44:55,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111831885] [2023-11-29 01:44:55,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111831885] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:44:55,152 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:44:55,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 01:44:55,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538578080] [2023-11-29 01:44:55,153 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:44:55,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:44:55,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:55,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:44:55,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=50, Unknown=2, NotChecked=0, Total=72 [2023-11-29 01:44:55,154 INFO L87 Difference]: Start difference. First operand 3239 states and 4569 transitions. Second operand has 6 states, 5 states have (on average 22.2) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 01:44:56,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:44:56,794 INFO L93 Difference]: Finished difference Result 3269 states and 4589 transitions. [2023-11-29 01:44:56,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:44:56,794 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.2) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 232 [2023-11-29 01:44:56,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:44:56,798 INFO L225 Difference]: With dead ends: 3269 [2023-11-29 01:44:56,798 INFO L226 Difference]: Without dead ends: 3268 [2023-11-29 01:44:56,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=44, Invalid=86, Unknown=2, NotChecked=0, Total=132 [2023-11-29 01:44:56,799 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 42 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:44:56,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 494 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 01:44:56,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3268 states. [2023-11-29 01:44:57,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3268 to 3245. [2023-11-29 01:44:57,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3245 states, 2922 states have (on average 1.3829568788501028) internal successors, (4041), 2975 states have internal predecessors, (4041), 267 states have call successors, (267), 2 states have call predecessors, (267), 2 states have return successors, (267), 267 states have call predecessors, (267), 267 states have call successors, (267) [2023-11-29 01:44:57,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3245 states to 3245 states and 4575 transitions. [2023-11-29 01:44:57,413 INFO L78 Accepts]: Start accepts. Automaton has 3245 states and 4575 transitions. Word has length 232 [2023-11-29 01:44:57,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:44:57,413 INFO L495 AbstractCegarLoop]: Abstraction has 3245 states and 4575 transitions. [2023-11-29 01:44:57,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.2) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 01:44:57,413 INFO L276 IsEmpty]: Start isEmpty. Operand 3245 states and 4575 transitions. [2023-11-29 01:44:57,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-11-29 01:44:57,415 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:44:57,415 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:57,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Ended with exit code 0 [2023-11-29 01:44:57,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:44:57,615 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:44:57,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:57,616 INFO L85 PathProgramCache]: Analyzing trace with hash -2104974639, now seen corresponding path program 1 times [2023-11-29 01:44:57,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:57,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557944898] [2023-11-29 01:44:57,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:57,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:57,630 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:44:57,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1513447782] [2023-11-29 01:44:57,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:57,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:44:57,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:44:57,632 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:44:57,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2023-11-29 01:44:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:57,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 01:44:57,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:44:58,505 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 01:44:58,505 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:44:58,950 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 01:44:58,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:58,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557944898] [2023-11-29 01:44:58,950 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:44:58,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513447782] [2023-11-29 01:44:58,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513447782] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:44:58,951 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:44:58,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-29 01:44:58,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608922845] [2023-11-29 01:44:58,951 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:44:58,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 01:44:58,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:58,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 01:44:58,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:44:58,953 INFO L87 Difference]: Start difference. First operand 3245 states and 4575 transitions. Second operand has 16 states, 15 states have (on average 19.333333333333332) internal successors, (290), 16 states have internal predecessors, (290), 9 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 9 states have call predecessors, (32), 9 states have call successors, (32) [2023-11-29 01:45:06,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:45:06,841 INFO L93 Difference]: Finished difference Result 4054 states and 5593 transitions. [2023-11-29 01:45:06,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 01:45:06,841 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 19.333333333333332) internal successors, (290), 16 states have internal predecessors, (290), 9 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 9 states have call predecessors, (32), 9 states have call successors, (32) Word has length 233 [2023-11-29 01:45:06,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:45:06,846 INFO L225 Difference]: With dead ends: 4054 [2023-11-29 01:45:06,846 INFO L226 Difference]: Without dead ends: 4053 [2023-11-29 01:45:06,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 450 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=313, Invalid=809, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 01:45:06,848 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 1113 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 1930 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 2010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:45:06,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1124 Valid, 1112 Invalid, 2010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1930 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-11-29 01:45:06,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4053 states. [2023-11-29 01:45:07,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4053 to 3353. [2023-11-29 01:45:07,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3353 states, 3022 states have (on average 1.3904698874917274) internal successors, (4202), 3075 states have internal predecessors, (4202), 275 states have call successors, (275), 2 states have call predecessors, (275), 2 states have return successors, (275), 275 states have call predecessors, (275), 275 states have call successors, (275) [2023-11-29 01:45:07,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3353 states to 3353 states and 4752 transitions. [2023-11-29 01:45:07,465 INFO L78 Accepts]: Start accepts. Automaton has 3353 states and 4752 transitions. Word has length 233 [2023-11-29 01:45:07,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:45:07,465 INFO L495 AbstractCegarLoop]: Abstraction has 3353 states and 4752 transitions. [2023-11-29 01:45:07,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 19.333333333333332) internal successors, (290), 16 states have internal predecessors, (290), 9 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 9 states have call predecessors, (32), 9 states have call successors, (32) [2023-11-29 01:45:07,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3353 states and 4752 transitions. [2023-11-29 01:45:07,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-11-29 01:45:07,467 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:45:07,467 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:45:07,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Ended with exit code 0 [2023-11-29 01:45:07,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable97 [2023-11-29 01:45:07,668 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:45:07,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:45:07,668 INFO L85 PathProgramCache]: Analyzing trace with hash -829704195, now seen corresponding path program 1 times [2023-11-29 01:45:07,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:45:07,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508059870] [2023-11-29 01:45:07,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:45:07,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:45:07,685 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:45:07,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [522654047] [2023-11-29 01:45:07,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:45:07,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:45:07,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:45:07,687 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:45:07,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2023-11-29 01:45:07,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:07,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:45:07,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:45:08,466 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 42 proven. 92 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 01:45:08,467 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:45:08,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:45:08,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508059870] [2023-11-29 01:45:08,634 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:45:08,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522654047] [2023-11-29 01:45:08,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522654047] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:45:08,635 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:45:08,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 01:45:08,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163700357] [2023-11-29 01:45:08,635 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:45:08,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:45:08,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:45:08,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:45:08,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:45:08,637 INFO L87 Difference]: Start difference. First operand 3353 states and 4752 transitions. Second operand has 8 states, 7 states have (on average 21.428571428571427) internal successors, (150), 8 states have internal predecessors, (150), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 01:45:10,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:45:10,340 INFO L93 Difference]: Finished difference Result 3363 states and 4752 transitions. [2023-11-29 01:45:10,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:45:10,341 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 21.428571428571427) internal successors, (150), 8 states have internal predecessors, (150), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 234 [2023-11-29 01:45:10,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:45:10,345 INFO L225 Difference]: With dead ends: 3363 [2023-11-29 01:45:10,345 INFO L226 Difference]: Without dead ends: 3362 [2023-11-29 01:45:10,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:45:10,346 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 131 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:45:10,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 354 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 01:45:10,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3362 states. [2023-11-29 01:45:10,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3362 to 3353. [2023-11-29 01:45:10,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3353 states, 3022 states have (on average 1.3894771674387822) internal successors, (4199), 3075 states have internal predecessors, (4199), 275 states have call successors, (275), 2 states have call predecessors, (275), 2 states have return successors, (275), 275 states have call predecessors, (275), 275 states have call successors, (275) [2023-11-29 01:45:11,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3353 states to 3353 states and 4749 transitions. [2023-11-29 01:45:11,003 INFO L78 Accepts]: Start accepts. Automaton has 3353 states and 4749 transitions. Word has length 234 [2023-11-29 01:45:11,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:45:11,003 INFO L495 AbstractCegarLoop]: Abstraction has 3353 states and 4749 transitions. [2023-11-29 01:45:11,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 21.428571428571427) internal successors, (150), 8 states have internal predecessors, (150), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 01:45:11,004 INFO L276 IsEmpty]: Start isEmpty. Operand 3353 states and 4749 transitions. [2023-11-29 01:45:11,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-11-29 01:45:11,005 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:45:11,005 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:45:11,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Ended with exit code 0 [2023-11-29 01:45:11,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:45:11,206 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:45:11,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:45:11,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1483167419, now seen corresponding path program 2 times [2023-11-29 01:45:11,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:45:11,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159266857] [2023-11-29 01:45:11,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:45:11,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:45:11,221 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:45:11,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1679737510] [2023-11-29 01:45:11,221 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:45:11,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:45:11,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:45:11,223 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:45:11,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2023-11-29 01:45:11,321 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:45:11,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:45:11,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:45:11,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:45:11,646 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 90 proven. 48 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 01:45:11,646 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:45:11,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:45:11,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159266857] [2023-11-29 01:45:11,728 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:45:11,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679737510] [2023-11-29 01:45:11,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679737510] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:45:11,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:45:11,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 01:45:11,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629181278] [2023-11-29 01:45:11,729 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:45:11,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:45:11,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:45:11,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:45:11,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:45:11,730 INFO L87 Difference]: Start difference. First operand 3353 states and 4749 transitions. Second operand has 7 states, 6 states have (on average 25.0) internal successors, (150), 7 states have internal predecessors, (150), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-29 01:45:13,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:45:13,161 INFO L93 Difference]: Finished difference Result 3379 states and 4749 transitions. [2023-11-29 01:45:13,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:45:13,162 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 25.0) internal successors, (150), 7 states have internal predecessors, (150), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 234 [2023-11-29 01:45:13,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:45:13,165 INFO L225 Difference]: With dead ends: 3379 [2023-11-29 01:45:13,165 INFO L226 Difference]: Without dead ends: 3377 [2023-11-29 01:45:13,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:45:13,166 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 278 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:45:13,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 798 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 01:45:13,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3377 states. [2023-11-29 01:45:13,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3377 to 3002. [2023-11-29 01:45:13,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3002 states, 2701 states have (on average 1.3383931877082562) internal successors, (3615), 2752 states have internal predecessors, (3615), 247 states have call successors, (247), 2 states have call predecessors, (247), 2 states have return successors, (247), 247 states have call predecessors, (247), 247 states have call successors, (247) [2023-11-29 01:45:13,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3002 states to 3002 states and 4109 transitions. [2023-11-29 01:45:13,777 INFO L78 Accepts]: Start accepts. Automaton has 3002 states and 4109 transitions. Word has length 234 [2023-11-29 01:45:13,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:45:13,777 INFO L495 AbstractCegarLoop]: Abstraction has 3002 states and 4109 transitions. [2023-11-29 01:45:13,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 25.0) internal successors, (150), 7 states have internal predecessors, (150), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-29 01:45:13,778 INFO L276 IsEmpty]: Start isEmpty. Operand 3002 states and 4109 transitions. [2023-11-29 01:45:13,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-11-29 01:45:13,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:45:13,779 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:45:13,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Ended with exit code 0 [2023-11-29 01:45:13,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:45:13,980 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:45:13,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:45:13,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1127389289, now seen corresponding path program 2 times [2023-11-29 01:45:13,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:45:13,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295706613] [2023-11-29 01:45:13,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:45:13,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:45:13,997 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:45:13,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1845643061] [2023-11-29 01:45:13,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:45:13,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:45:13,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:45:13,999 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:45:14,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2023-11-29 01:45:14,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:45:14,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:45:14,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 01:45:14,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:45:16,063 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2023-11-29 01:45:16,063 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:45:24,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:45:24,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295706613] [2023-11-29 01:45:24,243 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:45:24,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845643061] [2023-11-29 01:45:24,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845643061] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:45:24,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:45:24,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 01:45:24,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677992208] [2023-11-29 01:45:24,244 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:45:24,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:45:24,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:45:24,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:45:24,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=206, Unknown=2, NotChecked=0, Total=272 [2023-11-29 01:45:24,245 INFO L87 Difference]: Start difference. First operand 3002 states and 4109 transitions. Second operand has 13 states, 12 states have (on average 12.75) internal successors, (153), 13 states have internal predecessors, (153), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-29 01:45:26,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:45:26,309 INFO L93 Difference]: Finished difference Result 3261 states and 4416 transitions. [2023-11-29 01:45:26,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 01:45:26,310 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 12.75) internal successors, (153), 13 states have internal predecessors, (153), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) Word has length 234 [2023-11-29 01:45:26,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:45:26,314 INFO L225 Difference]: With dead ends: 3261 [2023-11-29 01:45:26,314 INFO L226 Difference]: Without dead ends: 3259 [2023-11-29 01:45:26,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=142, Invalid=456, Unknown=2, NotChecked=0, Total=600 [2023-11-29 01:45:26,315 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 389 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 1473 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:45:26,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 898 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1473 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 01:45:26,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3259 states. [2023-11-29 01:45:26,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3259 to 3004. [2023-11-29 01:45:26,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3004 states, 2703 states have (on average 1.3377728449870514) internal successors, (3616), 2754 states have internal predecessors, (3616), 247 states have call successors, (247), 2 states have call predecessors, (247), 2 states have return successors, (247), 247 states have call predecessors, (247), 247 states have call successors, (247) [2023-11-29 01:45:26,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3004 states to 3004 states and 4110 transitions. [2023-11-29 01:45:26,825 INFO L78 Accepts]: Start accepts. Automaton has 3004 states and 4110 transitions. Word has length 234 [2023-11-29 01:45:26,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:45:26,825 INFO L495 AbstractCegarLoop]: Abstraction has 3004 states and 4110 transitions. [2023-11-29 01:45:26,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 12.75) internal successors, (153), 13 states have internal predecessors, (153), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-29 01:45:26,826 INFO L276 IsEmpty]: Start isEmpty. Operand 3004 states and 4110 transitions. [2023-11-29 01:45:26,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-11-29 01:45:26,827 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:45:26,827 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:45:26,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Ended with exit code 0 [2023-11-29 01:45:27,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100,102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:45:27,027 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:45:27,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:45:27,028 INFO L85 PathProgramCache]: Analyzing trace with hash 48973907, now seen corresponding path program 1 times [2023-11-29 01:45:27,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:45:27,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954366455] [2023-11-29 01:45:27,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:45:27,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:45:27,041 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:45:27,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [461056015] [2023-11-29 01:45:27,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:45:27,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:45:27,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:45:27,043 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:45:27,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2023-11-29 01:45:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:27,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:45:27,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:45:27,639 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 42 proven. 93 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 01:45:27,639 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:45:27,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:45:27,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954366455] [2023-11-29 01:45:27,759 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:45:27,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461056015] [2023-11-29 01:45:27,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461056015] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:45:27,759 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:45:27,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 01:45:27,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548279032] [2023-11-29 01:45:27,760 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:45:27,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:45:27,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:45:27,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:45:27,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:45:27,761 INFO L87 Difference]: Start difference. First operand 3004 states and 4110 transitions. Second operand has 8 states, 7 states have (on average 21.571428571428573) internal successors, (151), 8 states have internal predecessors, (151), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 01:45:28,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:45:28,893 INFO L93 Difference]: Finished difference Result 3046 states and 4138 transitions. [2023-11-29 01:45:28,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:45:28,894 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 21.571428571428573) internal successors, (151), 8 states have internal predecessors, (151), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 235 [2023-11-29 01:45:28,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:45:28,897 INFO L225 Difference]: With dead ends: 3046 [2023-11-29 01:45:28,897 INFO L226 Difference]: Without dead ends: 3045 [2023-11-29 01:45:28,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:45:28,897 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 67 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:45:28,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 578 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 01:45:28,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3045 states. [2023-11-29 01:45:29,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3045 to 3012. [2023-11-29 01:45:29,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3012 states, 2711 states have (on average 1.3375138325341203) internal successors, (3626), 2762 states have internal predecessors, (3626), 247 states have call successors, (247), 2 states have call predecessors, (247), 2 states have return successors, (247), 247 states have call predecessors, (247), 247 states have call successors, (247) [2023-11-29 01:45:29,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3012 states to 3012 states and 4120 transitions. [2023-11-29 01:45:29,383 INFO L78 Accepts]: Start accepts. Automaton has 3012 states and 4120 transitions. Word has length 235 [2023-11-29 01:45:29,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:45:29,383 INFO L495 AbstractCegarLoop]: Abstraction has 3012 states and 4120 transitions. [2023-11-29 01:45:29,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 21.571428571428573) internal successors, (151), 8 states have internal predecessors, (151), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 01:45:29,383 INFO L276 IsEmpty]: Start isEmpty. Operand 3012 states and 4120 transitions. [2023-11-29 01:45:29,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-11-29 01:45:29,384 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:45:29,384 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:45:29,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Ended with exit code 0 [2023-11-29 01:45:29,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2023-11-29 01:45:29,585 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:45:29,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:45:29,585 INFO L85 PathProgramCache]: Analyzing trace with hash 589329780, now seen corresponding path program 2 times [2023-11-29 01:45:29,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:45:29,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333637406] [2023-11-29 01:45:29,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:45:29,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:45:29,598 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:45:29,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2019874507] [2023-11-29 01:45:29,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:45:29,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:45:29,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:45:29,599 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:45:29,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2023-11-29 01:45:29,690 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:45:29,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:45:29,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 01:45:29,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:45:31,574 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2023-11-29 01:45:31,574 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:45:31,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:45:31,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333637406] [2023-11-29 01:45:31,819 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:45:31,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019874507] [2023-11-29 01:45:31,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019874507] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:45:31,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:45:31,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 01:45:31,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310280447] [2023-11-29 01:45:31,819 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:45:31,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 01:45:31,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:45:31,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 01:45:31,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:45:31,820 INFO L87 Difference]: Start difference. First operand 3012 states and 4120 transitions. Second operand has 15 states, 14 states have (on average 11.0) internal successors, (154), 15 states have internal predecessors, (154), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-29 01:45:34,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:45:34,920 INFO L93 Difference]: Finished difference Result 3274 states and 4431 transitions. [2023-11-29 01:45:34,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 01:45:34,921 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.0) internal successors, (154), 15 states have internal predecessors, (154), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) Word has length 235 [2023-11-29 01:45:34,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:45:34,924 INFO L225 Difference]: With dead ends: 3274 [2023-11-29 01:45:34,924 INFO L226 Difference]: Without dead ends: 3269 [2023-11-29 01:45:34,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=143, Invalid=787, Unknown=0, NotChecked=0, Total=930 [2023-11-29 01:45:34,925 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 473 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 2691 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 2726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:45:34,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 745 Invalid, 2726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2691 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 01:45:34,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3269 states. [2023-11-29 01:45:35,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3269 to 3010. [2023-11-29 01:45:35,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3010 states, 2709 states have (on average 1.3370247323735696) internal successors, (3622), 2760 states have internal predecessors, (3622), 247 states have call successors, (247), 2 states have call predecessors, (247), 2 states have return successors, (247), 247 states have call predecessors, (247), 247 states have call successors, (247) [2023-11-29 01:45:35,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3010 states to 3010 states and 4116 transitions. [2023-11-29 01:45:35,546 INFO L78 Accepts]: Start accepts. Automaton has 3010 states and 4116 transitions. Word has length 235 [2023-11-29 01:45:35,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:45:35,546 INFO L495 AbstractCegarLoop]: Abstraction has 3010 states and 4116 transitions. [2023-11-29 01:45:35,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.0) internal successors, (154), 15 states have internal predecessors, (154), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-29 01:45:35,546 INFO L276 IsEmpty]: Start isEmpty. Operand 3010 states and 4116 transitions. [2023-11-29 01:45:35,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-11-29 01:45:35,548 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:45:35,548 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:45:35,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Ended with exit code 0 [2023-11-29 01:45:35,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102,104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:45:35,748 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:45:35,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:45:35,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1518191295, now seen corresponding path program 1 times [2023-11-29 01:45:35,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:45:35,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441858655] [2023-11-29 01:45:35,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:45:35,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:45:35,764 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:45:35,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1038956379] [2023-11-29 01:45:35,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:45:35,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:45:35,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:45:35,766 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:45:35,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Waiting until timeout for monitored process [2023-11-29 01:45:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:35,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:45:35,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:45:36,065 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2023-11-29 01:45:36,065 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:45:40,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:45:40,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441858655] [2023-11-29 01:45:40,140 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:45:40,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038956379] [2023-11-29 01:45:40,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038956379] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:45:40,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:45:40,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 01:45:40,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625609838] [2023-11-29 01:45:40,141 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:45:40,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:45:40,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:45:40,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:45:40,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=51, Unknown=1, NotChecked=0, Total=72 [2023-11-29 01:45:40,142 INFO L87 Difference]: Start difference. First operand 3010 states and 4116 transitions. Second operand has 6 states, 5 states have (on average 23.0) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 01:45:41,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:45:41,255 INFO L93 Difference]: Finished difference Result 3037 states and 4128 transitions. [2023-11-29 01:45:41,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:45:41,256 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.0) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 236 [2023-11-29 01:45:41,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:45:41,259 INFO L225 Difference]: With dead ends: 3037 [2023-11-29 01:45:41,259 INFO L226 Difference]: Without dead ends: 3036 [2023-11-29 01:45:41,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=25, Invalid=64, Unknown=1, NotChecked=0, Total=90 [2023-11-29 01:45:41,259 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 33 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:45:41,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 703 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:45:41,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3036 states. [2023-11-29 01:45:41,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3036 to 3013. [2023-11-29 01:45:41,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3013 states, 2712 states have (on average 1.3355457227138643) internal successors, (3622), 2763 states have internal predecessors, (3622), 247 states have call successors, (247), 2 states have call predecessors, (247), 2 states have return successors, (247), 247 states have call predecessors, (247), 247 states have call successors, (247) [2023-11-29 01:45:41,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3013 states to 3013 states and 4116 transitions. [2023-11-29 01:45:41,770 INFO L78 Accepts]: Start accepts. Automaton has 3013 states and 4116 transitions. Word has length 236 [2023-11-29 01:45:41,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:45:41,771 INFO L495 AbstractCegarLoop]: Abstraction has 3013 states and 4116 transitions. [2023-11-29 01:45:41,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.0) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 01:45:41,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3013 states and 4116 transitions. [2023-11-29 01:45:41,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2023-11-29 01:45:41,772 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:45:41,773 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:45:41,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Ended with exit code 0 [2023-11-29 01:45:41,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103,105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:45:41,973 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:45:41,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:45:41,973 INFO L85 PathProgramCache]: Analyzing trace with hash -180709931, now seen corresponding path program 1 times [2023-11-29 01:45:41,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:45:41,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765385678] [2023-11-29 01:45:41,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:45:41,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:45:41,983 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:45:41,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1223260407] [2023-11-29 01:45:41,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:45:41,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:45:41,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:45:41,984 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:45:41,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Waiting until timeout for monitored process [2023-11-29 01:45:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:42,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 01:45:42,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:45:42,660 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 42 proven. 95 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 01:45:42,660 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:45:42,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:45:42,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765385678] [2023-11-29 01:45:42,801 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:45:42,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223260407] [2023-11-29 01:45:42,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223260407] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:45:42,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:45:42,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 01:45:42,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095592326] [2023-11-29 01:45:42,802 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:45:42,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:45:42,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:45:42,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:45:42,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:45:42,803 INFO L87 Difference]: Start difference. First operand 3013 states and 4116 transitions. Second operand has 9 states, 8 states have (on average 19.125) internal successors, (153), 9 states have internal predecessors, (153), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 01:45:44,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:45:44,191 INFO L93 Difference]: Finished difference Result 3020 states and 4116 transitions. [2023-11-29 01:45:44,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:45:44,191 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 19.125) internal successors, (153), 9 states have internal predecessors, (153), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 237 [2023-11-29 01:45:44,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:45:44,194 INFO L225 Difference]: With dead ends: 3020 [2023-11-29 01:45:44,194 INFO L226 Difference]: Without dead ends: 3019 [2023-11-29 01:45:44,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:45:44,194 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 116 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:45:44,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 523 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 01:45:44,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3019 states. [2023-11-29 01:45:44,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3019 to 3013. [2023-11-29 01:45:44,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3013 states, 2712 states have (on average 1.3344395280235988) internal successors, (3619), 2763 states have internal predecessors, (3619), 247 states have call successors, (247), 2 states have call predecessors, (247), 2 states have return successors, (247), 247 states have call predecessors, (247), 247 states have call successors, (247) [2023-11-29 01:45:44,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3013 states to 3013 states and 4113 transitions. [2023-11-29 01:45:44,685 INFO L78 Accepts]: Start accepts. Automaton has 3013 states and 4113 transitions. Word has length 237 [2023-11-29 01:45:44,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:45:44,685 INFO L495 AbstractCegarLoop]: Abstraction has 3013 states and 4113 transitions. [2023-11-29 01:45:44,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 19.125) internal successors, (153), 9 states have internal predecessors, (153), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 01:45:44,685 INFO L276 IsEmpty]: Start isEmpty. Operand 3013 states and 4113 transitions. [2023-11-29 01:45:44,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-11-29 01:45:44,686 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:45:44,686 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:45:44,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Ended with exit code 0 [2023-11-29 01:45:44,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:45:44,887 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:45:44,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:45:44,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1935475711, now seen corresponding path program 1 times [2023-11-29 01:45:44,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:45:44,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20045816] [2023-11-29 01:45:44,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:45:44,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:45:44,898 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:45:44,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [216611752] [2023-11-29 01:45:44,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:45:44,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:45:44,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:45:44,899 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:45:44,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2023-11-29 01:45:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:44,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:45:45,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:45:45,125 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 88 proven. 53 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 01:45:45,126 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:45:45,277 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 88 proven. 53 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 01:45:45,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:45:45,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20045816] [2023-11-29 01:45:45,278 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:45:45,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216611752] [2023-11-29 01:45:45,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216611752] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:45:45,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:45:45,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2023-11-29 01:45:45,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681523315] [2023-11-29 01:45:45,279 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:45:45,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:45:45,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:45:45,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:45:45,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:45:45,280 INFO L87 Difference]: Start difference. First operand 3013 states and 4113 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-29 01:45:46,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:45:46,635 INFO L93 Difference]: Finished difference Result 4168 states and 5694 transitions. [2023-11-29 01:45:46,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:45:46,636 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 240 [2023-11-29 01:45:46,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:45:46,639 INFO L225 Difference]: With dead ends: 4168 [2023-11-29 01:45:46,639 INFO L226 Difference]: Without dead ends: 4139 [2023-11-29 01:45:46,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 474 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:45:46,640 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 658 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:45:46,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 1192 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 01:45:46,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4139 states. [2023-11-29 01:45:47,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4139 to 3033. [2023-11-29 01:45:47,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3033 states, 2732 states have (on average 1.334553440702782) internal successors, (3646), 2783 states have internal predecessors, (3646), 247 states have call successors, (247), 2 states have call predecessors, (247), 2 states have return successors, (247), 247 states have call predecessors, (247), 247 states have call successors, (247) [2023-11-29 01:45:47,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3033 states to 3033 states and 4140 transitions. [2023-11-29 01:45:47,141 INFO L78 Accepts]: Start accepts. Automaton has 3033 states and 4140 transitions. Word has length 240 [2023-11-29 01:45:47,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:45:47,142 INFO L495 AbstractCegarLoop]: Abstraction has 3033 states and 4140 transitions. [2023-11-29 01:45:47,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-29 01:45:47,142 INFO L276 IsEmpty]: Start isEmpty. Operand 3033 states and 4140 transitions. [2023-11-29 01:45:47,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-11-29 01:45:47,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:45:47,143 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:45:47,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Ended with exit code 0 [2023-11-29 01:45:47,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105,107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:45:47,343 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:45:47,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:45:47,344 INFO L85 PathProgramCache]: Analyzing trace with hash 2075788310, now seen corresponding path program 2 times [2023-11-29 01:45:47,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:45:47,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808135618] [2023-11-29 01:45:47,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:45:47,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:45:47,356 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:45:47,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1444466633] [2023-11-29 01:45:47,356 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:45:47,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:45:47,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:45:47,358 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:45:47,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Waiting until timeout for monitored process [2023-11-29 01:45:47,445 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:45:47,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:45:47,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 01:45:47,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:45:48,898 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 3 proven. 174 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2023-11-29 01:45:48,899 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:45:49,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:45:49,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808135618] [2023-11-29 01:45:49,039 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:45:49,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444466633] [2023-11-29 01:45:49,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444466633] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:45:49,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:45:49,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 01:45:49,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689426311] [2023-11-29 01:45:49,040 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:45:49,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 01:45:49,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:45:49,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 01:45:49,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-11-29 01:45:49,041 INFO L87 Difference]: Start difference. First operand 3033 states and 4140 transitions. Second operand has 15 states, 14 states have (on average 11.714285714285714) internal successors, (164), 14 states have internal predecessors, (164), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 01:45:53,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:45:53,541 INFO L93 Difference]: Finished difference Result 3361 states and 4609 transitions. [2023-11-29 01:45:53,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 01:45:53,542 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.714285714285714) internal successors, (164), 14 states have internal predecessors, (164), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 250 [2023-11-29 01:45:53,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:45:53,546 INFO L225 Difference]: With dead ends: 3361 [2023-11-29 01:45:53,546 INFO L226 Difference]: Without dead ends: 3360 [2023-11-29 01:45:53,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2023-11-29 01:45:53,547 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 482 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 2282 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 1184 SdHoareTripleChecker+Invalid, 2298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:45:53,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 1184 Invalid, 2298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2282 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-29 01:45:53,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3360 states. [2023-11-29 01:45:54,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3360 to 3033. [2023-11-29 01:45:54,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3033 states, 2732 states have (on average 1.3341874084919474) internal successors, (3645), 2783 states have internal predecessors, (3645), 247 states have call successors, (247), 2 states have call predecessors, (247), 2 states have return successors, (247), 247 states have call predecessors, (247), 247 states have call successors, (247) [2023-11-29 01:45:54,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3033 states to 3033 states and 4139 transitions. [2023-11-29 01:45:54,183 INFO L78 Accepts]: Start accepts. Automaton has 3033 states and 4139 transitions. Word has length 250 [2023-11-29 01:45:54,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:45:54,183 INFO L495 AbstractCegarLoop]: Abstraction has 3033 states and 4139 transitions. [2023-11-29 01:45:54,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.714285714285714) internal successors, (164), 14 states have internal predecessors, (164), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 01:45:54,183 INFO L276 IsEmpty]: Start isEmpty. Operand 3033 states and 4139 transitions. [2023-11-29 01:45:54,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-11-29 01:45:54,185 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:45:54,185 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:45:54,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Ended with exit code 0 [2023-11-29 01:45:54,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106,108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:45:54,385 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:45:54,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:45:54,386 INFO L85 PathProgramCache]: Analyzing trace with hash -75071746, now seen corresponding path program 2 times [2023-11-29 01:45:54,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:45:54,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176342471] [2023-11-29 01:45:54,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:45:54,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:45:54,408 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:45:54,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2142174723] [2023-11-29 01:45:54,409 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:45:54,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:45:54,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:45:54,410 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:45:54,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Waiting until timeout for monitored process [2023-11-29 01:45:54,516 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:45:54,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:45:54,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 01:45:54,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:45:56,228 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 3 proven. 177 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2023-11-29 01:45:56,229 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:45:56,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:45:56,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176342471] [2023-11-29 01:45:56,569 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:45:56,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142174723] [2023-11-29 01:45:56,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142174723] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:45:56,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:45:56,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 01:45:56,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130569984] [2023-11-29 01:45:56,570 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:45:56,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 01:45:56,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:45:56,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 01:45:56,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-11-29 01:45:56,571 INFO L87 Difference]: Start difference. First operand 3033 states and 4139 transitions. Second operand has 15 states, 14 states have (on average 11.785714285714286) internal successors, (165), 14 states have internal predecessors, (165), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 01:46:00,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:46:00,825 INFO L93 Difference]: Finished difference Result 3360 states and 4608 transitions. [2023-11-29 01:46:00,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 01:46:00,826 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.785714285714286) internal successors, (165), 14 states have internal predecessors, (165), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 251 [2023-11-29 01:46:00,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:46:00,830 INFO L225 Difference]: With dead ends: 3360 [2023-11-29 01:46:00,830 INFO L226 Difference]: Without dead ends: 3359 [2023-11-29 01:46:00,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2023-11-29 01:46:00,831 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 409 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 2170 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 2182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:46:00,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 1286 Invalid, 2182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2170 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-29 01:46:00,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3359 states. [2023-11-29 01:46:01,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3359 to 3033. [2023-11-29 01:46:01,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3033 states, 2732 states have (on average 1.3338213762811126) internal successors, (3644), 2783 states have internal predecessors, (3644), 247 states have call successors, (247), 2 states have call predecessors, (247), 2 states have return successors, (247), 247 states have call predecessors, (247), 247 states have call successors, (247) [2023-11-29 01:46:01,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3033 states to 3033 states and 4138 transitions. [2023-11-29 01:46:01,437 INFO L78 Accepts]: Start accepts. Automaton has 3033 states and 4138 transitions. Word has length 251 [2023-11-29 01:46:01,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:46:01,437 INFO L495 AbstractCegarLoop]: Abstraction has 3033 states and 4138 transitions. [2023-11-29 01:46:01,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.785714285714286) internal successors, (165), 14 states have internal predecessors, (165), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 01:46:01,437 INFO L276 IsEmpty]: Start isEmpty. Operand 3033 states and 4138 transitions. [2023-11-29 01:46:01,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2023-11-29 01:46:01,439 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:46:01,439 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:46:01,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Ended with exit code 0 [2023-11-29 01:46:01,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107,109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:46:01,639 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:46:01,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:46:01,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1967743256, now seen corresponding path program 1 times [2023-11-29 01:46:01,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:46:01,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37117129] [2023-11-29 01:46:01,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:46:01,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:46:01,655 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:46:01,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1533356702] [2023-11-29 01:46:01,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:46:01,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:46:01,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:46:01,656 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:46:01,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2023-11-29 01:46:01,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:01,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 01:46:01,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:46:03,259 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 3 proven. 180 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2023-11-29 01:46:03,259 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:46:03,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:46:03,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37117129] [2023-11-29 01:46:03,433 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:46:03,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533356702] [2023-11-29 01:46:03,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533356702] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:46:03,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:46:03,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 01:46:03,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994406337] [2023-11-29 01:46:03,434 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:46:03,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:46:03,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:46:03,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:46:03,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:46:03,435 INFO L87 Difference]: Start difference. First operand 3033 states and 4138 transitions. Second operand has 14 states, 13 states have (on average 12.76923076923077) internal successors, (166), 13 states have internal predecessors, (166), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 01:46:09,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:46:09,034 INFO L93 Difference]: Finished difference Result 3347 states and 4592 transitions. [2023-11-29 01:46:09,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 01:46:09,035 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.76923076923077) internal successors, (166), 13 states have internal predecessors, (166), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 252 [2023-11-29 01:46:09,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:46:09,039 INFO L225 Difference]: With dead ends: 3347 [2023-11-29 01:46:09,039 INFO L226 Difference]: Without dead ends: 3346 [2023-11-29 01:46:09,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=650, Unknown=0, NotChecked=0, Total=756 [2023-11-29 01:46:09,040 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 619 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 2465 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 2507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:46:09,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 903 Invalid, 2507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2465 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-29 01:46:09,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3346 states. [2023-11-29 01:46:09,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3346 to 3033. [2023-11-29 01:46:09,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3033 states, 2732 states have (on average 1.333455344070278) internal successors, (3643), 2783 states have internal predecessors, (3643), 247 states have call successors, (247), 2 states have call predecessors, (247), 2 states have return successors, (247), 247 states have call predecessors, (247), 247 states have call successors, (247) [2023-11-29 01:46:09,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3033 states to 3033 states and 4137 transitions. [2023-11-29 01:46:09,674 INFO L78 Accepts]: Start accepts. Automaton has 3033 states and 4137 transitions. Word has length 252 [2023-11-29 01:46:09,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:46:09,674 INFO L495 AbstractCegarLoop]: Abstraction has 3033 states and 4137 transitions. [2023-11-29 01:46:09,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.76923076923077) internal successors, (166), 13 states have internal predecessors, (166), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 01:46:09,674 INFO L276 IsEmpty]: Start isEmpty. Operand 3033 states and 4137 transitions. [2023-11-29 01:46:09,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-11-29 01:46:09,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:46:09,676 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:46:09,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Ended with exit code 0 [2023-11-29 01:46:09,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:46:09,876 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:46:09,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:46:09,877 INFO L85 PathProgramCache]: Analyzing trace with hash 870498880, now seen corresponding path program 1 times [2023-11-29 01:46:09,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:46:09,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614820270] [2023-11-29 01:46:09,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:46:09,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:46:09,904 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:46:09,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [571939643] [2023-11-29 01:46:09,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:46:09,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:46:09,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:46:09,906 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:46:09,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process [2023-11-29 01:46:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:10,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 01:46:10,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:46:11,463 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 3 proven. 183 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2023-11-29 01:46:11,463 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:46:11,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:46:11,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614820270] [2023-11-29 01:46:11,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:46:11,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571939643] [2023-11-29 01:46:11,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571939643] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:46:11,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:46:11,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 01:46:11,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828131753] [2023-11-29 01:46:11,789 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:46:11,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:46:11,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:46:11,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:46:11,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:46:11,790 INFO L87 Difference]: Start difference. First operand 3033 states and 4137 transitions. Second operand has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 13 states have internal predecessors, (167), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 01:46:17,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:46:17,578 INFO L93 Difference]: Finished difference Result 3346 states and 4591 transitions. [2023-11-29 01:46:17,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 01:46:17,578 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 13 states have internal predecessors, (167), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 253 [2023-11-29 01:46:17,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:46:17,582 INFO L225 Difference]: With dead ends: 3346 [2023-11-29 01:46:17,582 INFO L226 Difference]: Without dead ends: 3345 [2023-11-29 01:46:17,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=111, Invalid=645, Unknown=0, NotChecked=0, Total=756 [2023-11-29 01:46:17,584 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 585 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 2506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:46:17,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 907 Invalid, 2506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-29 01:46:17,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3345 states. [2023-11-29 01:46:18,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3345 to 3033. [2023-11-29 01:46:18,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3033 states, 2732 states have (on average 1.3330893118594436) internal successors, (3642), 2783 states have internal predecessors, (3642), 247 states have call successors, (247), 2 states have call predecessors, (247), 2 states have return successors, (247), 247 states have call predecessors, (247), 247 states have call successors, (247) [2023-11-29 01:46:18,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3033 states to 3033 states and 4136 transitions. [2023-11-29 01:46:18,225 INFO L78 Accepts]: Start accepts. Automaton has 3033 states and 4136 transitions. Word has length 253 [2023-11-29 01:46:18,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:46:18,226 INFO L495 AbstractCegarLoop]: Abstraction has 3033 states and 4136 transitions. [2023-11-29 01:46:18,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 13 states have internal predecessors, (167), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 01:46:18,226 INFO L276 IsEmpty]: Start isEmpty. Operand 3033 states and 4136 transitions. [2023-11-29 01:46:18,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-11-29 01:46:18,227 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:46:18,227 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:46:18,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Ended with exit code 0 [2023-11-29 01:46:18,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:46:18,428 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:46:18,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:46:18,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1215661594, now seen corresponding path program 2 times [2023-11-29 01:46:18,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:46:18,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452668294] [2023-11-29 01:46:18,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:46:18,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:46:18,443 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:46:18,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1681042259] [2023-11-29 01:46:18,444 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:46:18,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:46:18,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:46:18,445 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:46:18,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Waiting until timeout for monitored process [2023-11-29 01:46:18,559 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:46:18,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:46:18,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 01:46:18,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:46:25,384 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 30 proven. 180 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2023-11-29 01:46:25,385 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:46:27,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:46:27,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452668294] [2023-11-29 01:46:27,248 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:46:27,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681042259] [2023-11-29 01:46:27,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681042259] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:46:27,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:46:27,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 01:46:27,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593526883] [2023-11-29 01:46:27,249 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:46:27,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:46:27,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:46:27,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:46:27,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:46:27,250 INFO L87 Difference]: Start difference. First operand 3033 states and 4136 transitions. Second operand has 14 states, 13 states have (on average 12.923076923076923) internal successors, (168), 14 states have internal predecessors, (168), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 01:46:39,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:46:44,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:46:54,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:47:08,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:47:08,490 INFO L93 Difference]: Finished difference Result 3345 states and 4590 transitions. [2023-11-29 01:47:08,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 01:47:08,490 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.923076923076923) internal successors, (168), 14 states have internal predecessors, (168), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 254 [2023-11-29 01:47:08,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:47:08,494 INFO L225 Difference]: With dead ends: 3345 [2023-11-29 01:47:08,494 INFO L226 Difference]: Without dead ends: 3344 [2023-11-29 01:47:08,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2023-11-29 01:47:08,496 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 292 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 2726 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 2738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:47:08,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 1111 Invalid, 2738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2726 Invalid, 0 Unknown, 0 Unchecked, 37.9s Time] [2023-11-29 01:47:08,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3344 states. [2023-11-29 01:47:09,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3344 to 3311. [2023-11-29 01:47:09,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3311 states, 2986 states have (on average 1.3526456798392499) internal successors, (4039), 3037 states have internal predecessors, (4039), 271 states have call successors, (271), 2 states have call predecessors, (271), 2 states have return successors, (271), 271 states have call predecessors, (271), 271 states have call successors, (271) [2023-11-29 01:47:09,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3311 states to 3311 states and 4581 transitions. [2023-11-29 01:47:09,176 INFO L78 Accepts]: Start accepts. Automaton has 3311 states and 4581 transitions. Word has length 254 [2023-11-29 01:47:09,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:47:09,176 INFO L495 AbstractCegarLoop]: Abstraction has 3311 states and 4581 transitions. [2023-11-29 01:47:09,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.923076923076923) internal successors, (168), 14 states have internal predecessors, (168), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 01:47:09,176 INFO L276 IsEmpty]: Start isEmpty. Operand 3311 states and 4581 transitions. [2023-11-29 01:47:09,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2023-11-29 01:47:09,177 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:47:09,177 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:47:09,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Ended with exit code 0 [2023-11-29 01:47:09,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:47:09,378 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:47:09,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:47:09,378 INFO L85 PathProgramCache]: Analyzing trace with hash -969196158, now seen corresponding path program 1 times [2023-11-29 01:47:09,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:47:09,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031744981] [2023-11-29 01:47:09,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:47:09,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:47:09,390 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:47:09,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1493684808] [2023-11-29 01:47:09,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:47:09,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:47:09,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:47:09,391 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:47:09,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2023-11-29 01:47:09,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:47:09,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-29 01:47:09,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:47:13,947 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 9 proven. 177 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2023-11-29 01:47:13,948 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:47:14,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:47:14,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031744981] [2023-11-29 01:47:14,645 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:47:14,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493684808] [2023-11-29 01:47:14,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493684808] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:47:14,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:47:14,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 01:47:14,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558742787] [2023-11-29 01:47:14,646 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:47:14,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 01:47:14,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:47:14,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 01:47:14,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2023-11-29 01:47:14,647 INFO L87 Difference]: Start difference. First operand 3311 states and 4581 transitions. Second operand has 17 states, 16 states have (on average 8.4375) internal successors, (135), 16 states have internal predecessors, (135), 7 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2023-11-29 01:47:20,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:47:20,956 INFO L93 Difference]: Finished difference Result 3608 states and 4987 transitions. [2023-11-29 01:47:20,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 01:47:20,958 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 8.4375) internal successors, (135), 16 states have internal predecessors, (135), 7 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) Word has length 255 [2023-11-29 01:47:20,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:47:20,962 INFO L225 Difference]: With dead ends: 3608 [2023-11-29 01:47:20,963 INFO L226 Difference]: Without dead ends: 3599 [2023-11-29 01:47:20,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=132, Invalid=860, Unknown=0, NotChecked=0, Total=992 [2023-11-29 01:47:20,964 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 397 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 3035 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 3047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:47:20,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 668 Invalid, 3047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3035 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-29 01:47:20,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3599 states. [2023-11-29 01:47:21,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3599 to 3557. [2023-11-29 01:47:21,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3557 states, 3211 states have (on average 1.3625038928682653) internal successors, (4375), 3262 states have internal predecessors, (4375), 292 states have call successors, (292), 2 states have call predecessors, (292), 2 states have return successors, (292), 292 states have call predecessors, (292), 292 states have call successors, (292) [2023-11-29 01:47:21,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3557 states to 3557 states and 4959 transitions. [2023-11-29 01:47:21,727 INFO L78 Accepts]: Start accepts. Automaton has 3557 states and 4959 transitions. Word has length 255 [2023-11-29 01:47:21,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:47:21,728 INFO L495 AbstractCegarLoop]: Abstraction has 3557 states and 4959 transitions. [2023-11-29 01:47:21,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 8.4375) internal successors, (135), 16 states have internal predecessors, (135), 7 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2023-11-29 01:47:21,728 INFO L276 IsEmpty]: Start isEmpty. Operand 3557 states and 4959 transitions. [2023-11-29 01:47:21,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-11-29 01:47:21,729 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:47:21,730 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:47:21,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Ended with exit code 0 [2023-11-29 01:47:21,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2023-11-29 01:47:21,930 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:47:21,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:47:21,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1524259536, now seen corresponding path program 1 times [2023-11-29 01:47:21,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:47:21,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673950732] [2023-11-29 01:47:21,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:47:21,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:47:21,943 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:47:21,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [87931317] [2023-11-29 01:47:21,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:47:21,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:47:21,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:47:21,945 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:47:21,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Waiting until timeout for monitored process [2023-11-29 01:47:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:47:22,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 01:47:22,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:47:23,878 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 3 proven. 195 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-11-29 01:47:23,878 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:47:25,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:47:25,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673950732] [2023-11-29 01:47:25,211 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:47:25,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87931317] [2023-11-29 01:47:25,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87931317] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:47:25,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:47:25,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 01:47:25,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138192129] [2023-11-29 01:47:25,211 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:47:25,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 01:47:25,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:47:25,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 01:47:25,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=328, Unknown=1, NotChecked=0, Total=380 [2023-11-29 01:47:25,212 INFO L87 Difference]: Start difference. First operand 3557 states and 4959 transitions. Second operand has 16 states, 15 states have (on average 11.333333333333334) internal successors, (170), 15 states have internal predecessors, (170), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 01:47:29,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:47:29,949 INFO L93 Difference]: Finished difference Result 3601 states and 4976 transitions. [2023-11-29 01:47:29,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 01:47:29,949 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 11.333333333333334) internal successors, (170), 15 states have internal predecessors, (170), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 261 [2023-11-29 01:47:29,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:47:29,954 INFO L225 Difference]: With dead ends: 3601 [2023-11-29 01:47:29,954 INFO L226 Difference]: Without dead ends: 3599 [2023-11-29 01:47:29,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=130, Invalid=861, Unknown=1, NotChecked=0, Total=992 [2023-11-29 01:47:29,955 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 619 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 3359 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 3400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 3359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:47:29,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 939 Invalid, 3400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 3359 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-29 01:47:29,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3599 states. [2023-11-29 01:47:30,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3599 to 3557. [2023-11-29 01:47:30,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3557 states, 3211 states have (on average 1.3581438804110868) internal successors, (4361), 3262 states have internal predecessors, (4361), 292 states have call successors, (292), 2 states have call predecessors, (292), 2 states have return successors, (292), 292 states have call predecessors, (292), 292 states have call successors, (292) [2023-11-29 01:47:30,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3557 states to 3557 states and 4945 transitions. [2023-11-29 01:47:30,727 INFO L78 Accepts]: Start accepts. Automaton has 3557 states and 4945 transitions. Word has length 261 [2023-11-29 01:47:30,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:47:30,727 INFO L495 AbstractCegarLoop]: Abstraction has 3557 states and 4945 transitions. [2023-11-29 01:47:30,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 11.333333333333334) internal successors, (170), 15 states have internal predecessors, (170), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 01:47:30,727 INFO L276 IsEmpty]: Start isEmpty. Operand 3557 states and 4945 transitions. [2023-11-29 01:47:30,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-11-29 01:47:30,729 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:47:30,729 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:47:30,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Ended with exit code 0 [2023-11-29 01:47:30,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 114 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2023-11-29 01:47:30,929 INFO L420 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:47:30,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:47:30,930 INFO L85 PathProgramCache]: Analyzing trace with hash 7405457, now seen corresponding path program 1 times [2023-11-29 01:47:30,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:47:30,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640144334] [2023-11-29 01:47:30,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:47:30,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:47:30,949 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:47:30,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [583066027] [2023-11-29 01:47:30,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:47:30,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:47:30,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:47:30,950 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:47:30,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Waiting until timeout for monitored process [2023-11-29 01:47:31,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:47:31,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 01:47:31,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:47:33,538 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 3 proven. 198 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-11-29 01:47:33,538 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:47:34,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:47:34,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640144334] [2023-11-29 01:47:34,313 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:47:34,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583066027] [2023-11-29 01:47:34,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583066027] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:47:34,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:47:34,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 01:47:34,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354311252] [2023-11-29 01:47:34,314 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:47:34,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 01:47:34,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:47:34,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 01:47:34,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:47:34,315 INFO L87 Difference]: Start difference. First operand 3557 states and 4945 transitions. Second operand has 16 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 01:47:40,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:47:40,218 INFO L93 Difference]: Finished difference Result 3599 states and 4962 transitions. [2023-11-29 01:47:40,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 01:47:40,219 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 262 [2023-11-29 01:47:40,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:47:40,223 INFO L225 Difference]: With dead ends: 3599 [2023-11-29 01:47:40,223 INFO L226 Difference]: Without dead ends: 3597 [2023-11-29 01:47:40,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=130, Invalid=862, Unknown=0, NotChecked=0, Total=992 [2023-11-29 01:47:40,224 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 586 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 3093 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 3131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 3093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:47:40,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 880 Invalid, 3131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 3093 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-29 01:47:40,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3597 states. [2023-11-29 01:47:40,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3597 to 3557. [2023-11-29 01:47:40,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3557 states, 3211 states have (on average 1.3537838679539085) internal successors, (4347), 3262 states have internal predecessors, (4347), 292 states have call successors, (292), 2 states have call predecessors, (292), 2 states have return successors, (292), 292 states have call predecessors, (292), 292 states have call successors, (292) [2023-11-29 01:47:41,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3557 states to 3557 states and 4931 transitions. [2023-11-29 01:47:41,002 INFO L78 Accepts]: Start accepts. Automaton has 3557 states and 4931 transitions. Word has length 262 [2023-11-29 01:47:41,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:47:41,002 INFO L495 AbstractCegarLoop]: Abstraction has 3557 states and 4931 transitions. [2023-11-29 01:47:41,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 01:47:41,002 INFO L276 IsEmpty]: Start isEmpty. Operand 3557 states and 4931 transitions. [2023-11-29 01:47:41,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2023-11-29 01:47:41,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:47:41,004 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:47:41,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Ended with exit code 0 [2023-11-29 01:47:41,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 115 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2023-11-29 01:47:41,204 INFO L420 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:47:41,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:47:41,204 INFO L85 PathProgramCache]: Analyzing trace with hash 229569266, now seen corresponding path program 1 times [2023-11-29 01:47:41,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:47:41,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133402543] [2023-11-29 01:47:41,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:47:41,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:47:41,217 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:47:41,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1285681258] [2023-11-29 01:47:41,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:47:41,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:47:41,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:47:41,218 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:47:41,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Waiting until timeout for monitored process [2023-11-29 01:47:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:47:41,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 01:47:41,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:47:43,722 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 3 proven. 201 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-11-29 01:47:43,722 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:47:56,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:47:56,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133402543] [2023-11-29 01:47:56,039 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:47:56,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285681258] [2023-11-29 01:47:56,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285681258] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:47:56,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:47:56,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 01:47:56,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393505432] [2023-11-29 01:47:56,040 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:47:56,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 01:47:56,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:47:56,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 01:47:56,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=303, Unknown=3, NotChecked=0, Total=380 [2023-11-29 01:47:56,041 INFO L87 Difference]: Start difference. First operand 3557 states and 4931 transitions. Second operand has 16 states, 15 states have (on average 11.466666666666667) internal successors, (172), 15 states have internal predecessors, (172), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 01:47:59,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:47:59,536 INFO L93 Difference]: Finished difference Result 3609 states and 4964 transitions. [2023-11-29 01:47:59,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 01:47:59,537 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 11.466666666666667) internal successors, (172), 15 states have internal predecessors, (172), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 263 [2023-11-29 01:47:59,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:47:59,541 INFO L225 Difference]: With dead ends: 3609 [2023-11-29 01:47:59,541 INFO L226 Difference]: Without dead ends: 3607 [2023-11-29 01:47:59,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=104, Invalid=445, Unknown=3, NotChecked=0, Total=552 [2023-11-29 01:47:59,543 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 396 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 2555 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 2566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:47:59,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 1238 Invalid, 2566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2555 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 01:47:59,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3607 states. [2023-11-29 01:48:00,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3607 to 3557. [2023-11-29 01:48:00,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3557 states, 3211 states have (on average 1.3531610090314543) internal successors, (4345), 3262 states have internal predecessors, (4345), 292 states have call successors, (292), 2 states have call predecessors, (292), 2 states have return successors, (292), 292 states have call predecessors, (292), 292 states have call successors, (292) [2023-11-29 01:48:00,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3557 states to 3557 states and 4929 transitions. [2023-11-29 01:48:00,315 INFO L78 Accepts]: Start accepts. Automaton has 3557 states and 4929 transitions. Word has length 263 [2023-11-29 01:48:00,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:48:00,315 INFO L495 AbstractCegarLoop]: Abstraction has 3557 states and 4929 transitions. [2023-11-29 01:48:00,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 11.466666666666667) internal successors, (172), 15 states have internal predecessors, (172), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 01:48:00,315 INFO L276 IsEmpty]: Start isEmpty. Operand 3557 states and 4929 transitions. [2023-11-29 01:48:00,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2023-11-29 01:48:00,317 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:48:00,317 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:48:00,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Ended with exit code 0 [2023-11-29 01:48:00,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 116 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable114 [2023-11-29 01:48:00,517 INFO L420 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:48:00,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:48:00,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1572735764, now seen corresponding path program 1 times [2023-11-29 01:48:00,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:48:00,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322096409] [2023-11-29 01:48:00,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:48:00,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:48:00,532 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:48:00,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [933478561] [2023-11-29 01:48:00,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:48:00,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:48:00,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:48:00,534 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:48:00,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Waiting until timeout for monitored process [2023-11-29 01:48:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:00,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 01:48:00,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:48:03,517 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 3 proven. 207 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-11-29 01:48:03,517 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:48:03,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:48:03,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322096409] [2023-11-29 01:48:03,601 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:48:03,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933478561] [2023-11-29 01:48:03,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933478561] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:48:03,601 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:48:03,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-11-29 01:48:03,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139697342] [2023-11-29 01:48:03,601 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:48:03,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 01:48:03,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:48:03,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 01:48:03,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:48:03,602 INFO L87 Difference]: Start difference. First operand 3557 states and 4929 transitions. Second operand has 18 states, 17 states have (on average 10.235294117647058) internal successors, (174), 17 states have internal predecessors, (174), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 01:48:13,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:48:13,181 INFO L93 Difference]: Finished difference Result 4379 states and 6104 transitions. [2023-11-29 01:48:13,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 01:48:13,182 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 10.235294117647058) internal successors, (174), 17 states have internal predecessors, (174), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 265 [2023-11-29 01:48:13,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:48:13,186 INFO L225 Difference]: With dead ends: 4379 [2023-11-29 01:48:13,187 INFO L226 Difference]: Without dead ends: 4374 [2023-11-29 01:48:13,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=105, Invalid=545, Unknown=0, NotChecked=0, Total=650 [2023-11-29 01:48:13,188 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 467 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 3565 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 3582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:48:13,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 1166 Invalid, 3582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3565 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2023-11-29 01:48:13,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4374 states. [2023-11-29 01:48:14,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4374 to 4251. [2023-11-29 01:48:14,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4251 states, 3845 states have (on average 1.3672301690507151) internal successors, (5257), 3896 states have internal predecessors, (5257), 352 states have call successors, (352), 2 states have call predecessors, (352), 2 states have return successors, (352), 352 states have call predecessors, (352), 352 states have call successors, (352) [2023-11-29 01:48:14,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4251 states to 4251 states and 5961 transitions. [2023-11-29 01:48:14,073 INFO L78 Accepts]: Start accepts. Automaton has 4251 states and 5961 transitions. Word has length 265 [2023-11-29 01:48:14,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:48:14,074 INFO L495 AbstractCegarLoop]: Abstraction has 4251 states and 5961 transitions. [2023-11-29 01:48:14,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 10.235294117647058) internal successors, (174), 17 states have internal predecessors, (174), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 01:48:14,074 INFO L276 IsEmpty]: Start isEmpty. Operand 4251 states and 5961 transitions. [2023-11-29 01:48:14,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-11-29 01:48:14,075 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:48:14,075 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:48:14,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Ended with exit code 0 [2023-11-29 01:48:14,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 117 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable115 [2023-11-29 01:48:14,276 INFO L420 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:48:14,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:48:14,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1510168533, now seen corresponding path program 1 times [2023-11-29 01:48:14,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:48:14,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420569227] [2023-11-29 01:48:14,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:48:14,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:48:14,297 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:48:14,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [75009068] [2023-11-29 01:48:14,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:48:14,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:48:14,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:48:14,299 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:48:14,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Waiting until timeout for monitored process [2023-11-29 01:48:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:14,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 01:48:14,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:48:18,333 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 3 proven. 210 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-11-29 01:48:18,333 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:48:18,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:48:18,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420569227] [2023-11-29 01:48:18,402 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:48:18,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75009068] [2023-11-29 01:48:18,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75009068] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:48:18,402 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:48:18,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 01:48:18,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137145501] [2023-11-29 01:48:18,403 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:48:18,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 01:48:18,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:48:18,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 01:48:18,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:48:18,404 INFO L87 Difference]: Start difference. First operand 4251 states and 5961 transitions. Second operand has 17 states, 16 states have (on average 10.9375) internal successors, (175), 16 states have internal predecessors, (175), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 01:48:24,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:48:27,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:48:27,056 INFO L93 Difference]: Finished difference Result 4288 states and 5978 transitions. [2023-11-29 01:48:27,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 01:48:27,057 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 10.9375) internal successors, (175), 16 states have internal predecessors, (175), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 266 [2023-11-29 01:48:27,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:48:27,061 INFO L225 Difference]: With dead ends: 4288 [2023-11-29 01:48:27,061 INFO L226 Difference]: Without dead ends: 4287 [2023-11-29 01:48:27,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2023-11-29 01:48:27,062 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 465 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 3140 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 3154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:48:27,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 852 Invalid, 3154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3140 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2023-11-29 01:48:27,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4287 states. [2023-11-29 01:48:27,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4287 to 4251. [2023-11-29 01:48:27,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4251 states, 3845 states have (on average 1.365409622886866) internal successors, (5250), 3896 states have internal predecessors, (5250), 352 states have call successors, (352), 2 states have call predecessors, (352), 2 states have return successors, (352), 352 states have call predecessors, (352), 352 states have call successors, (352) [2023-11-29 01:48:27,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4251 states to 4251 states and 5954 transitions. [2023-11-29 01:48:27,861 INFO L78 Accepts]: Start accepts. Automaton has 4251 states and 5954 transitions. Word has length 266 [2023-11-29 01:48:27,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:48:27,861 INFO L495 AbstractCegarLoop]: Abstraction has 4251 states and 5954 transitions. [2023-11-29 01:48:27,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 10.9375) internal successors, (175), 16 states have internal predecessors, (175), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 01:48:27,861 INFO L276 IsEmpty]: Start isEmpty. Operand 4251 states and 5954 transitions. [2023-11-29 01:48:27,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2023-11-29 01:48:27,862 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:48:27,862 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:48:27,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Ended with exit code 0 [2023-11-29 01:48:28,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 118 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable116 [2023-11-29 01:48:28,063 INFO L420 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:48:28,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:48:28,063 INFO L85 PathProgramCache]: Analyzing trace with hash 977754495, now seen corresponding path program 2 times [2023-11-29 01:48:28,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:48:28,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095567413] [2023-11-29 01:48:28,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:48:28,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:48:28,079 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:48:28,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1720825943] [2023-11-29 01:48:28,079 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:48:28,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:48:28,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:48:28,080 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:48:28,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Waiting until timeout for monitored process [2023-11-29 01:48:28,176 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:48:28,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:48:28,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 45 conjunts are in the unsatisfiable core [2023-11-29 01:48:28,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:48:32,824 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 57 proven. 210 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2023-11-29 01:48:32,824 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:48:34,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:48:34,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095567413] [2023-11-29 01:48:34,354 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:48:34,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720825943] [2023-11-29 01:48:34,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720825943] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:48:34,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:48:34,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2023-11-29 01:48:34,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195306374] [2023-11-29 01:48:34,354 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:48:34,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 01:48:34,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:48:34,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 01:48:34,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=598, Unknown=0, NotChecked=0, Total=702 [2023-11-29 01:48:34,355 INFO L87 Difference]: Start difference. First operand 4251 states and 5954 transitions. Second operand has 20 states, 19 states have (on average 9.157894736842104) internal successors, (174), 19 states have internal predecessors, (174), 7 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 9 states have call predecessors, (21), 7 states have call successors, (21) [2023-11-29 01:48:41,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:48:41,894 INFO L93 Difference]: Finished difference Result 4512 states and 6267 transitions. [2023-11-29 01:48:41,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 01:48:41,894 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 9.157894736842104) internal successors, (174), 19 states have internal predecessors, (174), 7 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 9 states have call predecessors, (21), 7 states have call successors, (21) Word has length 267 [2023-11-29 01:48:41,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:48:41,900 INFO L225 Difference]: With dead ends: 4512 [2023-11-29 01:48:41,900 INFO L226 Difference]: Without dead ends: 4511 [2023-11-29 01:48:41,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=191, Invalid=1141, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 01:48:41,902 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 349 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 4520 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 4538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 4520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:48:41,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 751 Invalid, 4538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 4520 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-11-29 01:48:41,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4511 states. [2023-11-29 01:48:42,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4511 to 4485. [2023-11-29 01:48:42,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4485 states, 4059 states have (on average 1.3547671840354767) internal successors, (5499), 4110 states have internal predecessors, (5499), 372 states have call successors, (372), 2 states have call predecessors, (372), 2 states have return successors, (372), 372 states have call predecessors, (372), 372 states have call successors, (372) [2023-11-29 01:48:42,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4485 states to 4485 states and 6243 transitions. [2023-11-29 01:48:42,899 INFO L78 Accepts]: Start accepts. Automaton has 4485 states and 6243 transitions. Word has length 267 [2023-11-29 01:48:42,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:48:42,899 INFO L495 AbstractCegarLoop]: Abstraction has 4485 states and 6243 transitions. [2023-11-29 01:48:42,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 9.157894736842104) internal successors, (174), 19 states have internal predecessors, (174), 7 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 9 states have call predecessors, (21), 7 states have call successors, (21) [2023-11-29 01:48:42,899 INFO L276 IsEmpty]: Start isEmpty. Operand 4485 states and 6243 transitions. [2023-11-29 01:48:42,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-11-29 01:48:42,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:48:42,901 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:48:42,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Ended with exit code 0 [2023-11-29 01:48:43,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 119 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable117 [2023-11-29 01:48:43,101 INFO L420 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:48:43,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:48:43,101 INFO L85 PathProgramCache]: Analyzing trace with hash -975764479, now seen corresponding path program 2 times [2023-11-29 01:48:43,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:48:43,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26631832] [2023-11-29 01:48:43,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:48:43,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:48:43,115 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:48:43,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [589293950] [2023-11-29 01:48:43,115 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:48:43,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:48:43,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:48:43,116 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:48:43,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (120)] Waiting until timeout for monitored process [2023-11-29 01:48:43,223 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:48:43,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:48:43,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 01:48:43,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:48:47,174 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 44 proven. 163 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-29 01:48:47,174 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:48:47,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:48:47,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26631832] [2023-11-29 01:48:47,279 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:48:47,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589293950] [2023-11-29 01:48:47,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589293950] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:48:47,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:48:47,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 01:48:47,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817243751] [2023-11-29 01:48:47,280 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:48:47,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:48:47,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:48:47,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:48:47,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:48:47,281 INFO L87 Difference]: Start difference. First operand 4485 states and 6243 transitions. Second operand has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 6 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2023-11-29 01:48:48,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:48:51,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:48:53,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:48:58,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:49:20,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:49:20,951 INFO L93 Difference]: Finished difference Result 4503 states and 6243 transitions. [2023-11-29 01:49:20,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:49:20,951 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 6 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) Word has length 269 [2023-11-29 01:49:20,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:49:20,958 INFO L225 Difference]: With dead ends: 4503 [2023-11-29 01:49:20,958 INFO L226 Difference]: Without dead ends: 4501 [2023-11-29 01:49:20,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 21.6s TimeCoverageRelationStatistics Valid=108, Invalid=310, Unknown=2, NotChecked=0, Total=420 [2023-11-29 01:49:20,959 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 246 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 2016 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:49:20,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 1035 Invalid, 2035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2016 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2023-11-29 01:49:20,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4501 states. [2023-11-29 01:49:21,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4501 to 4251. [2023-11-29 01:49:21,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4251 states, 3845 states have (on average 1.3609882964889466) internal successors, (5233), 3896 states have internal predecessors, (5233), 352 states have call successors, (352), 2 states have call predecessors, (352), 2 states have return successors, (352), 352 states have call predecessors, (352), 352 states have call successors, (352) [2023-11-29 01:49:21,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4251 states to 4251 states and 5937 transitions. [2023-11-29 01:49:21,842 INFO L78 Accepts]: Start accepts. Automaton has 4251 states and 5937 transitions. Word has length 269 [2023-11-29 01:49:21,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:49:21,842 INFO L495 AbstractCegarLoop]: Abstraction has 4251 states and 5937 transitions. [2023-11-29 01:49:21,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 6 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2023-11-29 01:49:21,842 INFO L276 IsEmpty]: Start isEmpty. Operand 4251 states and 5937 transitions. [2023-11-29 01:49:21,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2023-11-29 01:49:21,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:49:21,843 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:49:21,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (120)] Ended with exit code 0 [2023-11-29 01:49:22,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118,120 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:49:22,044 INFO L420 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 01:49:22,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:49:22,044 INFO L85 PathProgramCache]: Analyzing trace with hash -2068456340, now seen corresponding path program 2 times [2023-11-29 01:49:22,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:49:22,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118116539] [2023-11-29 01:49:22,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:49:22,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:49:22,055 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:49:22,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1584121661] [2023-11-29 01:49:22,055 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:49:22,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:49:22,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:49:22,056 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:49:22,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18054605-3b2a-4ed2-9c61-4e234586f3ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (121)] Waiting until timeout for monitored process [2023-11-29 01:49:22,160 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:49:22,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:49:22,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 01:49:22,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:49:23,515 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 12 proven. 207 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-11-29 01:49:23,515 INFO L327 TraceCheckSpWp]: Computing backward predicates...