./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound20.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_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/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_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/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_f2239566-157e-4c6f-8830-d13beec96a8a/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 4aef2940f6d326843487f003443fc222e2136d386047f492f8bd5c7e21afc8f5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:16:38,824 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:16:38,895 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 06:16:38,900 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:16:38,901 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:16:38,930 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:16:38,930 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:16:38,931 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:16:38,932 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:16:38,932 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:16:38,933 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:16:38,934 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:16:38,934 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:16:38,935 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:16:38,936 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:16:38,936 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:16:38,937 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:16:38,937 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:16:38,938 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:16:38,938 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:16:38,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:16:38,940 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:16:38,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:16:38,941 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:16:38,941 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 06:16:38,942 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:16:38,942 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:16:38,943 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:16:38,943 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:16:38,944 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:16:38,944 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:16:38,945 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:16:38,945 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:16:38,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:16:38,946 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:16:38,946 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:16:38,946 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:16:38,946 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:16:38,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:16:38,947 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:16:38,947 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:16:38,947 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:16:38,947 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:16:38,948 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:16:38,948 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_f2239566-157e-4c6f-8830-d13beec96a8a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4aef2940f6d326843487f003443fc222e2136d386047f492f8bd5c7e21afc8f5 [2023-11-29 06:16:39,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:16:39,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:16:39,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:16:39,211 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:16:39,212 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:16:39,213 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound20.c [2023-11-29 06:16:42,317 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:16:42,538 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:16:42,539 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound20.c [2023-11-29 06:16:42,548 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/data/c955f2e4e/32a2185d745f418e9fe9bfe4952dde3f/FLAGe7978bb74 [2023-11-29 06:16:42,883 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/data/c955f2e4e/32a2185d745f418e9fe9bfe4952dde3f [2023-11-29 06:16:42,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:16:42,888 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:16:42,889 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:16:42,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:16:42,895 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:16:42,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:16:42" (1/1) ... [2023-11-29 06:16:42,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47645c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:42, skipping insertion in model container [2023-11-29 06:16:42,897 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:16:42" (1/1) ... [2023-11-29 06:16:42,920 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:16:43,071 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:16:43,081 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:16:43,102 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:16:43,112 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:16:43,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:43 WrapperNode [2023-11-29 06:16:43,113 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:16:43,114 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:16:43,114 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:16:43,114 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:16:43,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:43" (1/1) ... [2023-11-29 06:16:43,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:43" (1/1) ... [2023-11-29 06:16:43,146 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 124 [2023-11-29 06:16:43,146 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:16:43,147 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:16:43,147 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:16:43,147 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:16:43,158 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:43" (1/1) ... [2023-11-29 06:16:43,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:43" (1/1) ... [2023-11-29 06:16:43,160 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:43" (1/1) ... [2023-11-29 06:16:43,169 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 06:16:43,170 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:43" (1/1) ... [2023-11-29 06:16:43,170 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:43" (1/1) ... [2023-11-29 06:16:43,173 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:43" (1/1) ... [2023-11-29 06:16:43,176 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:43" (1/1) ... [2023-11-29 06:16:43,177 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:43" (1/1) ... [2023-11-29 06:16:43,178 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:43" (1/1) ... [2023-11-29 06:16:43,180 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:16:43,180 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:16:43,181 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:16:43,181 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:16:43,181 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:43" (1/1) ... [2023-11-29 06:16:43,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:16:43,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:16:43,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:16:43,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:16:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:16:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 06:16:43,250 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 06:16:43,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:16:43,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:16:43,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:16:43,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 06:16:43,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 06:16:43,310 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:16:43,312 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:16:43,642 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:16:43,667 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:16:43,668 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 06:16:43,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:16:43 BoogieIcfgContainer [2023-11-29 06:16:43,668 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:16:43,671 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:16:43,672 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:16:43,675 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:16:43,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:16:42" (1/3) ... [2023-11-29 06:16:43,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3817c2fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:16:43, skipping insertion in model container [2023-11-29 06:16:43,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:43" (2/3) ... [2023-11-29 06:16:43,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3817c2fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:16:43, skipping insertion in model container [2023-11-29 06:16:43,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:16:43" (3/3) ... [2023-11-29 06:16:43,678 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd-ll_unwindbound20.c [2023-11-29 06:16:43,698 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:16:43,698 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2023-11-29 06:16:43,744 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:16:43,750 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;@5e54ee8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:16:43,751 INFO L358 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2023-11-29 06:16:43,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 71 states have (on average 1.9014084507042253) internal successors, (135), 129 states have internal predecessors, (135), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 06:16:43,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 06:16:43,762 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:43,762 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:16:43,763 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:16:43,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:43,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1649939746, now seen corresponding path program 1 times [2023-11-29 06:16:43,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:43,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973349606] [2023-11-29 06:16:43,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:43,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:43,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:16:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:43,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 06:16:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:43,940 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:16:43,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:43,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973349606] [2023-11-29 06:16:43,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973349606] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:43,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:43,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:16:43,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742237145] [2023-11-29 06:16:43,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:43,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:16:43,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:43,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:16:43,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:16:43,973 INFO L87 Difference]: Start difference. First operand has 141 states, 71 states have (on average 1.9014084507042253) internal successors, (135), 129 states have internal predecessors, (135), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:16:44,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:44,007 INFO L93 Difference]: Finished difference Result 280 states and 312 transitions. [2023-11-29 06:16:44,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:16:44,009 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2023-11-29 06:16:44,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:44,017 INFO L225 Difference]: With dead ends: 280 [2023-11-29 06:16:44,017 INFO L226 Difference]: Without dead ends: 138 [2023-11-29 06:16:44,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 06:16:44,023 INFO L413 NwaCegarLoop]: 148 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, 148 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 06:16:44,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 148 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:16:44,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-29 06:16:44,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2023-11-29 06:16:44,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 70 states have (on average 1.8571428571428572) internal successors, (130), 127 states have internal predecessors, (130), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 06:16:44,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 146 transitions. [2023-11-29 06:16:44,058 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 146 transitions. Word has length 14 [2023-11-29 06:16:44,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:44,059 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 146 transitions. [2023-11-29 06:16:44,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:16:44,059 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 146 transitions. [2023-11-29 06:16:44,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 06:16:44,061 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:44,061 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:16:44,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:16:44,061 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:16:44,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:44,062 INFO L85 PathProgramCache]: Analyzing trace with hash -891616866, now seen corresponding path program 1 times [2023-11-29 06:16:44,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:44,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25624928] [2023-11-29 06:16:44,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:44,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:44,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:16:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:44,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 06:16:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:44,185 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:16:44,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:44,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25624928] [2023-11-29 06:16:44,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25624928] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:44,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:44,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:16:44,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458980862] [2023-11-29 06:16:44,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:44,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:16:44,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:44,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:16:44,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:16:44,189 INFO L87 Difference]: Start difference. First operand 138 states and 146 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:16:44,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:44,243 INFO L93 Difference]: Finished difference Result 203 states and 213 transitions. [2023-11-29 06:16:44,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:16:44,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-11-29 06:16:44,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:44,246 INFO L225 Difference]: With dead ends: 203 [2023-11-29 06:16:44,246 INFO L226 Difference]: Without dead ends: 142 [2023-11-29 06:16:44,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 06:16:44,249 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 9 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:44,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 413 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:16:44,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-29 06:16:44,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2023-11-29 06:16:44,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 74 states have (on average 1.8108108108108107) internal successors, (134), 131 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 06:16:44,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 150 transitions. [2023-11-29 06:16:44,266 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 150 transitions. Word has length 14 [2023-11-29 06:16:44,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:44,268 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 150 transitions. [2023-11-29 06:16:44,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:16:44,268 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 150 transitions. [2023-11-29 06:16:44,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 06:16:44,269 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:44,269 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:16:44,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:16:44,270 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:16:44,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:44,271 INFO L85 PathProgramCache]: Analyzing trace with hash -2080252688, now seen corresponding path program 1 times [2023-11-29 06:16:44,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:44,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557770367] [2023-11-29 06:16:44,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:44,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:44,285 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:16:44,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1759435225] [2023-11-29 06:16:44,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:44,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:44,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:16:44,293 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:16:44,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:16:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:44,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:16:44,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:16:44,394 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:16:44,395 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:16:44,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:44,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557770367] [2023-11-29 06:16:44,395 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:16:44,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759435225] [2023-11-29 06:16:44,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759435225] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:44,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:44,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:16:44,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746588229] [2023-11-29 06:16:44,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:44,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:16:44,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:44,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:16:44,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:16:44,399 INFO L87 Difference]: Start difference. First operand 142 states and 150 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:16:44,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:44,606 INFO L93 Difference]: Finished difference Result 258 states and 273 transitions. [2023-11-29 06:16:44,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:16:44,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2023-11-29 06:16:44,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:44,609 INFO L225 Difference]: With dead ends: 258 [2023-11-29 06:16:44,609 INFO L226 Difference]: Without dead ends: 256 [2023-11-29 06:16:44,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 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 06:16:44,611 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 107 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:44,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 145 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:16:44,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-11-29 06:16:44,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 179. [2023-11-29 06:16:44,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 106 states have (on average 1.849056603773585) internal successors, (196), 163 states have internal predecessors, (196), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 06:16:44,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 222 transitions. [2023-11-29 06:16:44,630 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 222 transitions. Word has length 17 [2023-11-29 06:16:44,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:44,631 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 222 transitions. [2023-11-29 06:16:44,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:16:44,631 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 222 transitions. [2023-11-29 06:16:44,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 06:16:44,632 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:44,632 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:16:44,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:16:44,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:44,833 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:16:44,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:44,833 INFO L85 PathProgramCache]: Analyzing trace with hash -63323835, now seen corresponding path program 1 times [2023-11-29 06:16:44,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:44,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938846958] [2023-11-29 06:16:44,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:44,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:44,843 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:16:44,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1104517543] [2023-11-29 06:16:44,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:44,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:44,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:16:44,845 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:16:44,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:16:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:44,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:16:44,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:16:44,927 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:16:44,927 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:16:44,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:44,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938846958] [2023-11-29 06:16:44,928 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:16:44,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104517543] [2023-11-29 06:16:44,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104517543] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:44,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:44,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:16:44,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732265350] [2023-11-29 06:16:44,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:44,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:16:44,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:44,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:16:44,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:16:44,930 INFO L87 Difference]: Start difference. First operand 179 states and 222 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:16:45,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:45,132 INFO L93 Difference]: Finished difference Result 256 states and 271 transitions. [2023-11-29 06:16:45,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:16:45,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-11-29 06:16:45,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:45,134 INFO L225 Difference]: With dead ends: 256 [2023-11-29 06:16:45,135 INFO L226 Difference]: Without dead ends: 254 [2023-11-29 06:16:45,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 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 06:16:45,137 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 104 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:45,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 163 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:16:45,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-11-29 06:16:45,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 180. [2023-11-29 06:16:45,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 107 states have (on average 1.8317757009345794) internal successors, (196), 164 states have internal predecessors, (196), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 06:16:45,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 222 transitions. [2023-11-29 06:16:45,155 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 222 transitions. Word has length 18 [2023-11-29 06:16:45,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:45,155 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 222 transitions. [2023-11-29 06:16:45,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:16:45,155 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 222 transitions. [2023-11-29 06:16:45,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-29 06:16:45,156 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:45,156 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:16:45,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-29 06:16:45,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:45,361 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:16:45,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:45,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1963038830, now seen corresponding path program 1 times [2023-11-29 06:16:45,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:45,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634936964] [2023-11-29 06:16:45,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:45,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:45,370 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:16:45,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [726928338] [2023-11-29 06:16:45,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:45,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:45,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:16:45,372 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:16:45,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:16:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:45,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:16:45,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:16:45,429 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:16:45,429 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:16:45,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:45,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634936964] [2023-11-29 06:16:45,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:16:45,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726928338] [2023-11-29 06:16:45,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726928338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:45,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:45,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:16:45,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49961795] [2023-11-29 06:16:45,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:45,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:16:45,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:45,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:16:45,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:16:45,432 INFO L87 Difference]: Start difference. First operand 180 states and 222 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:16:45,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:45,568 INFO L93 Difference]: Finished difference Result 302 states and 352 transitions. [2023-11-29 06:16:45,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:16:45,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2023-11-29 06:16:45,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:45,571 INFO L225 Difference]: With dead ends: 302 [2023-11-29 06:16:45,571 INFO L226 Difference]: Without dead ends: 294 [2023-11-29 06:16:45,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 06:16:45,573 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 103 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:45,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 222 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:16:45,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-11-29 06:16:45,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 236. [2023-11-29 06:16:45,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 157 states have (on average 1.7898089171974523) internal successors, (281), 214 states have internal predecessors, (281), 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 06:16:45,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 319 transitions. [2023-11-29 06:16:45,590 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 319 transitions. Word has length 19 [2023-11-29 06:16:45,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:45,591 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 319 transitions. [2023-11-29 06:16:45,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:16:45,591 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 319 transitions. [2023-11-29 06:16:45,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 06:16:45,592 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:45,592 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:16:45,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-29 06:16:45,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:45,797 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:16:45,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:45,797 INFO L85 PathProgramCache]: Analyzing trace with hash -989670860, now seen corresponding path program 1 times [2023-11-29 06:16:45,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:45,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159533250] [2023-11-29 06:16:45,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:45,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:45,804 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:16:45,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1092752689] [2023-11-29 06:16:45,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:45,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:45,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:16:45,806 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:16:45,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 06:16:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:45,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:16:45,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:16:45,912 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:16:45,912 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:16:45,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:45,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159533250] [2023-11-29 06:16:45,912 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:16:45,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092752689] [2023-11-29 06:16:45,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092752689] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:45,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:45,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:16:45,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091000249] [2023-11-29 06:16:45,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:45,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:16:45,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:45,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:16:45,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:16:45,915 INFO L87 Difference]: Start difference. First operand 236 states and 319 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:16:46,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:46,102 INFO L93 Difference]: Finished difference Result 294 states and 338 transitions. [2023-11-29 06:16:46,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:16:46,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-11-29 06:16:46,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:46,104 INFO L225 Difference]: With dead ends: 294 [2023-11-29 06:16:46,105 INFO L226 Difference]: Without dead ends: 287 [2023-11-29 06:16:46,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 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 06:16:46,106 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 93 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:46,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 163 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:16:46,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-11-29 06:16:46,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 240. [2023-11-29 06:16:46,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 161 states have (on average 1.7453416149068324) internal successors, (281), 218 states have internal predecessors, (281), 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 06:16:46,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 319 transitions. [2023-11-29 06:16:46,120 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 319 transitions. Word has length 21 [2023-11-29 06:16:46,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:46,121 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 319 transitions. [2023-11-29 06:16:46,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:16:46,121 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 319 transitions. [2023-11-29 06:16:46,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-29 06:16:46,122 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:46,122 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:16:46,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 06:16:46,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 06:16:46,324 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:16:46,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:46,324 INFO L85 PathProgramCache]: Analyzing trace with hash -615025527, now seen corresponding path program 1 times [2023-11-29 06:16:46,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:46,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961318301] [2023-11-29 06:16:46,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:46,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:46,331 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:16:46,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [126303060] [2023-11-29 06:16:46,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:46,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:46,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:16:46,332 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:16:46,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 06:16:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:46,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:16:46,369 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:16:46,412 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:16:46,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:16:46,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:46,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961318301] [2023-11-29 06:16:46,413 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:16:46,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126303060] [2023-11-29 06:16:46,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126303060] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:46,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:46,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:16:46,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320113947] [2023-11-29 06:16:46,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:46,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:16:46,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:46,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:16:46,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:16:46,415 INFO L87 Difference]: Start difference. First operand 240 states and 319 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:16:47,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:47,082 INFO L93 Difference]: Finished difference Result 287 states and 330 transitions. [2023-11-29 06:16:47,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:16:47,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-11-29 06:16:47,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:47,084 INFO L225 Difference]: With dead ends: 287 [2023-11-29 06:16:47,084 INFO L226 Difference]: Without dead ends: 282 [2023-11-29 06:16:47,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 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 06:16:47,086 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 180 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:47,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 197 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:16:47,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-11-29 06:16:47,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 202. [2023-11-29 06:16:47,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 128 states have (on average 1.7265625) internal successors, (221), 185 states have internal predecessors, (221), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 06:16:47,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 249 transitions. [2023-11-29 06:16:47,098 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 249 transitions. Word has length 22 [2023-11-29 06:16:47,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:47,099 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 249 transitions. [2023-11-29 06:16:47,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:16:47,099 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 249 transitions. [2023-11-29 06:16:47,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 06:16:47,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:47,100 INFO L195 NwaCegarLoop]: trace histogram [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 06:16:47,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 06:16:47,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 06:16:47,301 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:16:47,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:47,301 INFO L85 PathProgramCache]: Analyzing trace with hash -749701369, now seen corresponding path program 1 times [2023-11-29 06:16:47,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:47,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502604009] [2023-11-29 06:16:47,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:47,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:47,310 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:16:47,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1123718376] [2023-11-29 06:16:47,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:47,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:47,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:16:47,312 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:16:47,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 06:16:47,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:47,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 06:16:47,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:16:47,547 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:16:47,547 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:16:47,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:47,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502604009] [2023-11-29 06:16:47,547 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:16:47,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123718376] [2023-11-29 06:16:47,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123718376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:47,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:47,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 06:16:47,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399876709] [2023-11-29 06:16:47,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:47,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:16:47,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:47,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:16:47,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:16:47,549 INFO L87 Difference]: Start difference. First operand 202 states and 249 transitions. Second operand has 9 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:16:48,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:48,719 INFO L93 Difference]: Finished difference Result 382 states and 475 transitions. [2023-11-29 06:16:48,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:16:48,719 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2023-11-29 06:16:48,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:48,722 INFO L225 Difference]: With dead ends: 382 [2023-11-29 06:16:48,722 INFO L226 Difference]: Without dead ends: 380 [2023-11-29 06:16:48,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:16:48,724 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 308 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:48,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 470 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:16:48,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-11-29 06:16:48,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 274. [2023-11-29 06:16:48,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 192 states have (on average 1.7447916666666667) internal successors, (335), 249 states have internal predecessors, (335), 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 06:16:48,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 379 transitions. [2023-11-29 06:16:48,746 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 379 transitions. Word has length 28 [2023-11-29 06:16:48,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:48,747 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 379 transitions. [2023-11-29 06:16:48,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:16:48,747 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 379 transitions. [2023-11-29 06:16:48,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 06:16:48,748 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:48,748 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:16:48,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 06:16:48,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:48,953 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:16:48,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:48,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1765905893, now seen corresponding path program 1 times [2023-11-29 06:16:48,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:48,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818891403] [2023-11-29 06:16:48,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:48,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:48,963 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:16:48,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1546887190] [2023-11-29 06:16:48,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:48,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:48,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:16:48,964 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:16:48,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 06:16:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:49,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:16:49,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:16:49,126 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:16:49,126 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:16:49,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:49,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818891403] [2023-11-29 06:16:49,126 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:16:49,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546887190] [2023-11-29 06:16:49,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546887190] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:49,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:49,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:16:49,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815815994] [2023-11-29 06:16:49,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:49,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:16:49,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:49,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:16:49,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:16:49,128 INFO L87 Difference]: Start difference. First operand 274 states and 379 transitions. Second operand has 7 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:16:49,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:49,842 INFO L93 Difference]: Finished difference Result 382 states and 471 transitions. [2023-11-29 06:16:49,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:16:49,842 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2023-11-29 06:16:49,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:49,845 INFO L225 Difference]: With dead ends: 382 [2023-11-29 06:16:49,845 INFO L226 Difference]: Without dead ends: 380 [2023-11-29 06:16:49,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 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 06:16:49,846 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 350 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:49,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 295 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:16:49,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-11-29 06:16:49,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 276. [2023-11-29 06:16:49,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 194 states have (on average 1.7268041237113403) internal successors, (335), 251 states have internal predecessors, (335), 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 06:16:49,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 379 transitions. [2023-11-29 06:16:49,862 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 379 transitions. Word has length 29 [2023-11-29 06:16:49,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:49,863 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 379 transitions. [2023-11-29 06:16:49,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:16:49,863 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 379 transitions. [2023-11-29 06:16:49,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 06:16:49,864 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:49,864 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:16:49,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 06:16:50,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:50,066 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:16:50,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:50,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1091492233, now seen corresponding path program 1 times [2023-11-29 06:16:50,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:50,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490406277] [2023-11-29 06:16:50,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:50,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:50,075 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:16:50,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1907391842] [2023-11-29 06:16:50,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:50,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:50,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:16:50,076 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:16:50,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 06:16:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:50,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:16:50,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:16:50,196 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:16:50,196 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:16:50,336 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:16:50,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:50,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490406277] [2023-11-29 06:16:50,337 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:16:50,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907391842] [2023-11-29 06:16:50,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907391842] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:16:50,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:16:50,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 06:16:50,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131843455] [2023-11-29 06:16:50,337 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:16:50,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:16:50,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:50,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:16:50,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:16:50,339 INFO L87 Difference]: Start difference. First operand 276 states and 379 transitions. Second operand has 9 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 06:16:51,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:51,028 INFO L93 Difference]: Finished difference Result 408 states and 502 transitions. [2023-11-29 06:16:51,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:16:51,028 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 30 [2023-11-29 06:16:51,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:51,031 INFO L225 Difference]: With dead ends: 408 [2023-11-29 06:16:51,031 INFO L226 Difference]: Without dead ends: 406 [2023-11-29 06:16:51,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 51 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 06:16:51,033 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 757 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:51,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 248 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:16:51,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2023-11-29 06:16:51,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 298. [2023-11-29 06:16:51,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 213 states have (on average 1.7136150234741785) internal successors, (365), 270 states have internal predecessors, (365), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 06:16:51,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 415 transitions. [2023-11-29 06:16:51,068 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 415 transitions. Word has length 30 [2023-11-29 06:16:51,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:51,068 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 415 transitions. [2023-11-29 06:16:51,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 06:16:51,069 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 415 transitions. [2023-11-29 06:16:51,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 06:16:51,070 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:51,070 INFO L195 NwaCegarLoop]: trace histogram [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 06:16:51,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 06:16:51,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 06:16:51,271 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:16:51,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:51,272 INFO L85 PathProgramCache]: Analyzing trace with hash -523479075, now seen corresponding path program 1 times [2023-11-29 06:16:51,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:51,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509537078] [2023-11-29 06:16:51,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:51,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:51,282 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:16:51,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1750143398] [2023-11-29 06:16:51,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:51,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:51,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:16:51,284 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:16:51,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 06:16:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:51,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:16:51,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:16:51,417 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:16:51,417 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:16:51,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:51,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509537078] [2023-11-29 06:16:51,417 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:16:51,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750143398] [2023-11-29 06:16:51,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750143398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:51,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:51,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:16:51,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593691868] [2023-11-29 06:16:51,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:51,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:16:51,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:51,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:16:51,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:16:51,419 INFO L87 Difference]: Start difference. First operand 298 states and 415 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:16:51,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:51,655 INFO L93 Difference]: Finished difference Result 394 states and 495 transitions. [2023-11-29 06:16:51,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:16:51,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2023-11-29 06:16:51,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:51,659 INFO L225 Difference]: With dead ends: 394 [2023-11-29 06:16:51,659 INFO L226 Difference]: Without dead ends: 392 [2023-11-29 06:16:51,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 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 06:16:51,660 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 315 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:51,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 146 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:16:51,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2023-11-29 06:16:51,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 298. [2023-11-29 06:16:51,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 213 states have (on average 1.6948356807511737) internal successors, (361), 270 states have internal predecessors, (361), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 06:16:51,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 411 transitions. [2023-11-29 06:16:51,676 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 411 transitions. Word has length 31 [2023-11-29 06:16:51,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:51,677 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 411 transitions. [2023-11-29 06:16:51,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:16:51,677 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 411 transitions. [2023-11-29 06:16:51,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 06:16:51,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:51,678 INFO L195 NwaCegarLoop]: trace histogram [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 06:16:51,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 06:16:51,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:51,880 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:16:51,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:51,881 INFO L85 PathProgramCache]: Analyzing trace with hash 952017931, now seen corresponding path program 1 times [2023-11-29 06:16:51,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:51,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691762347] [2023-11-29 06:16:51,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:51,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:51,889 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:16:51,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1978816647] [2023-11-29 06:16:51,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:51,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:51,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:16:51,891 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:16:51,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 06:16:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:51,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:16:51,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:16:52,087 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:16:52,087 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:16:52,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:52,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691762347] [2023-11-29 06:16:52,193 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:16:52,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978816647] [2023-11-29 06:16:52,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978816647] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:16:52,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:16:52,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 06:16:52,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878759449] [2023-11-29 06:16:52,194 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:16:52,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:16:52,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:52,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:16:52,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:16:52,196 INFO L87 Difference]: Start difference. First operand 298 states and 411 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:16:53,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:53,119 INFO L93 Difference]: Finished difference Result 392 states and 491 transitions. [2023-11-29 06:16:53,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:16:53,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 32 [2023-11-29 06:16:53,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:53,122 INFO L225 Difference]: With dead ends: 392 [2023-11-29 06:16:53,122 INFO L226 Difference]: Without dead ends: 386 [2023-11-29 06:16:53,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 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 06:16:53,123 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 303 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:53,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 222 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 06:16:53,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2023-11-29 06:16:53,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 306. [2023-11-29 06:16:53,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 220 states have (on average 1.6681818181818182) internal successors, (367), 277 states have internal predecessors, (367), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:16:53,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 419 transitions. [2023-11-29 06:16:53,144 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 419 transitions. Word has length 32 [2023-11-29 06:16:53,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:53,145 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 419 transitions. [2023-11-29 06:16:53,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:16:53,145 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 419 transitions. [2023-11-29 06:16:53,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 06:16:53,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:53,146 INFO L195 NwaCegarLoop]: trace histogram [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 06:16:53,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 06:16:53,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:53,353 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:16:53,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:53,353 INFO L85 PathProgramCache]: Analyzing trace with hash -552215137, now seen corresponding path program 1 times [2023-11-29 06:16:53,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:53,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244615562] [2023-11-29 06:16:53,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:53,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:53,361 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:16:53,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1896354783] [2023-11-29 06:16:53,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:53,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:53,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:16:53,362 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:16:53,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 06:16:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:53,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:16:53,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:16:53,548 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:16:53,548 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:16:53,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:53,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244615562] [2023-11-29 06:16:53,548 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:16:53,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896354783] [2023-11-29 06:16:53,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896354783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:53,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:53,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:16:53,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464738726] [2023-11-29 06:16:53,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:53,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:16:53,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:53,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:16:53,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:16:53,550 INFO L87 Difference]: Start difference. First operand 306 states and 419 transitions. Second operand has 8 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:16:54,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:54,917 INFO L93 Difference]: Finished difference Result 392 states and 491 transitions. [2023-11-29 06:16:54,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:16:54,918 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2023-11-29 06:16:54,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:54,920 INFO L225 Difference]: With dead ends: 392 [2023-11-29 06:16:54,920 INFO L226 Difference]: Without dead ends: 390 [2023-11-29 06:16:54,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:16:54,921 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 394 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:54,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 273 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 06:16:54,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2023-11-29 06:16:54,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 307. [2023-11-29 06:16:54,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 221 states have (on average 1.6515837104072397) internal successors, (365), 278 states have internal predecessors, (365), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:16:54,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 417 transitions. [2023-11-29 06:16:54,944 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 417 transitions. Word has length 33 [2023-11-29 06:16:54,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:54,945 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 417 transitions. [2023-11-29 06:16:54,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:16:54,945 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 417 transitions. [2023-11-29 06:16:54,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 06:16:54,946 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:54,946 INFO L195 NwaCegarLoop]: trace histogram [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 06:16:54,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 06:16:55,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 06:16:55,146 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:16:55,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:55,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1173963144, now seen corresponding path program 1 times [2023-11-29 06:16:55,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:55,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350734555] [2023-11-29 06:16:55,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:55,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:55,156 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:16:55,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [231147102] [2023-11-29 06:16:55,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:55,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:55,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:16:55,157 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:16:55,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 06:16:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:55,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:16:55,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:16:55,284 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 06:16:55,285 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:16:55,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:55,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350734555] [2023-11-29 06:16:55,285 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:16:55,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231147102] [2023-11-29 06:16:55,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231147102] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:55,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:55,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:16:55,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455632285] [2023-11-29 06:16:55,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:55,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:16:55,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:55,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:16:55,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:16:55,287 INFO L87 Difference]: Start difference. First operand 307 states and 417 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:16:55,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:55,518 INFO L93 Difference]: Finished difference Result 355 states and 436 transitions. [2023-11-29 06:16:55,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:16:55,519 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2023-11-29 06:16:55,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:55,521 INFO L225 Difference]: With dead ends: 355 [2023-11-29 06:16:55,521 INFO L226 Difference]: Without dead ends: 353 [2023-11-29 06:16:55,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 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 06:16:55,522 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 274 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:55,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 334 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:16:55,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-11-29 06:16:55,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 308. [2023-11-29 06:16:55,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 222 states have (on average 1.6396396396396395) internal successors, (364), 279 states have internal predecessors, (364), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:16:55,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 416 transitions. [2023-11-29 06:16:55,541 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 416 transitions. Word has length 41 [2023-11-29 06:16:55,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:55,542 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 416 transitions. [2023-11-29 06:16:55,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:16:55,542 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 416 transitions. [2023-11-29 06:16:55,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 06:16:55,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:55,543 INFO L195 NwaCegarLoop]: trace histogram [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 06:16:55,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 06:16:55,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:55,749 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:16:55,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:55,750 INFO L85 PathProgramCache]: Analyzing trace with hash 2033119179, now seen corresponding path program 1 times [2023-11-29 06:16:55,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:55,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847059938] [2023-11-29 06:16:55,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:55,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:55,757 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:16:55,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [262859455] [2023-11-29 06:16:55,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:55,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:55,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:16:55,758 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:16:55,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 06:16:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:55,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:16:55,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:16:55,882 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 06:16:55,883 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:16:55,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:55,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847059938] [2023-11-29 06:16:55,883 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:16:55,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262859455] [2023-11-29 06:16:55,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262859455] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:55,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:55,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:16:55,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033896012] [2023-11-29 06:16:55,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:55,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:16:55,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:55,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:16:55,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:16:55,885 INFO L87 Difference]: Start difference. First operand 308 states and 416 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:16:56,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:56,063 INFO L93 Difference]: Finished difference Result 353 states and 433 transitions. [2023-11-29 06:16:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:16:56,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2023-11-29 06:16:56,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:56,066 INFO L225 Difference]: With dead ends: 353 [2023-11-29 06:16:56,066 INFO L226 Difference]: Without dead ends: 351 [2023-11-29 06:16:56,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 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 06:16:56,067 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 265 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:56,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 162 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:16:56,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-11-29 06:16:56,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 309. [2023-11-29 06:16:56,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 223 states have (on average 1.6278026905829597) internal successors, (363), 280 states have internal predecessors, (363), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:16:56,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 415 transitions. [2023-11-29 06:16:56,086 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 415 transitions. Word has length 42 [2023-11-29 06:16:56,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:56,086 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 415 transitions. [2023-11-29 06:16:56,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:16:56,086 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 415 transitions. [2023-11-29 06:16:56,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 06:16:56,087 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:56,087 INFO L195 NwaCegarLoop]: trace histogram [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 06:16:56,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 06:16:56,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:56,293 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:16:56,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:56,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1397814806, now seen corresponding path program 1 times [2023-11-29 06:16:56,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:56,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023838735] [2023-11-29 06:16:56,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:56,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:56,300 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:16:56,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [165341439] [2023-11-29 06:16:56,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:56,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:56,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:16:56,302 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:16:56,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 06:16:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:56,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:16:56,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:16:56,506 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 06:16:56,506 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:16:56,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:56,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023838735] [2023-11-29 06:16:56,507 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:16:56,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165341439] [2023-11-29 06:16:56,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165341439] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:56,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:56,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:16:56,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252147839] [2023-11-29 06:16:56,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:56,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:16:56,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:56,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:16:56,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:16:56,509 INFO L87 Difference]: Start difference. First operand 309 states and 415 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:16:57,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:57,060 INFO L93 Difference]: Finished difference Result 345 states and 422 transitions. [2023-11-29 06:16:57,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:16:57,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2023-11-29 06:16:57,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:57,062 INFO L225 Difference]: With dead ends: 345 [2023-11-29 06:16:57,062 INFO L226 Difference]: Without dead ends: 343 [2023-11-29 06:16:57,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 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 06:16:57,063 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 196 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:57,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 335 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:16:57,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-11-29 06:16:57,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 310. [2023-11-29 06:16:57,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 224 states have (on average 1.6160714285714286) internal successors, (362), 281 states have internal predecessors, (362), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:16:57,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 414 transitions. [2023-11-29 06:16:57,077 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 414 transitions. Word has length 43 [2023-11-29 06:16:57,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:57,077 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 414 transitions. [2023-11-29 06:16:57,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:16:57,078 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 414 transitions. [2023-11-29 06:16:57,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 06:16:57,078 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:57,078 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:16:57,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 06:16:57,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 06:16:57,279 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:16:57,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:57,279 INFO L85 PathProgramCache]: Analyzing trace with hash -382585939, now seen corresponding path program 1 times [2023-11-29 06:16:57,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:57,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019005124] [2023-11-29 06:16:57,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:57,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:57,288 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:16:57,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1522302520] [2023-11-29 06:16:57,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:57,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:57,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:16:57,290 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:16:57,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 06:16:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:57,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:16:57,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:16:57,499 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 06:16:57,499 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:16:59,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:59,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019005124] [2023-11-29 06:16:59,317 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:16:59,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522302520] [2023-11-29 06:16:59,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522302520] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:16:59,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:16:59,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:16:59,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474818804] [2023-11-29 06:16:59,318 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:16:59,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:16:59,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:59,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:16:59,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:16:59,319 INFO L87 Difference]: Start difference. First operand 310 states and 414 transitions. Second operand has 8 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:17:00,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:17:00,585 INFO L93 Difference]: Finished difference Result 343 states and 419 transitions. [2023-11-29 06:17:00,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:17:00,586 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2023-11-29 06:17:00,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:17:00,588 INFO L225 Difference]: With dead ends: 343 [2023-11-29 06:17:00,588 INFO L226 Difference]: Without dead ends: 341 [2023-11-29 06:17:00,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:17:00,588 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 399 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:17:00,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 371 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 06:17:00,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-11-29 06:17:00,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 311. [2023-11-29 06:17:00,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 225 states have (on average 1.6044444444444443) internal successors, (361), 282 states have internal predecessors, (361), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:17:00,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 413 transitions. [2023-11-29 06:17:00,615 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 413 transitions. Word has length 44 [2023-11-29 06:17:00,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:17:00,615 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 413 transitions. [2023-11-29 06:17:00,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:17:00,616 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 413 transitions. [2023-11-29 06:17:00,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 06:17:00,616 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:17:00,616 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-11-29 06:17:00,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 06:17:00,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 06:17:00,817 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:17:00,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:17:00,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1889396222, now seen corresponding path program 1 times [2023-11-29 06:17:00,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:17:00,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721020999] [2023-11-29 06:17:00,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:00,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:17:00,827 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:17:00,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [9225001] [2023-11-29 06:17:00,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:00,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:00,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:17:00,829 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:17:00,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 06:17:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:17:00,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:17:00,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:17:00,898 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:17:00,898 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:17:00,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:17:00,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721020999] [2023-11-29 06:17:00,898 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:17:00,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9225001] [2023-11-29 06:17:00,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9225001] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:17:00,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:17:00,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:17:00,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137424690] [2023-11-29 06:17:00,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:17:00,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:17:00,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:17:00,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:17:00,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:17:00,900 INFO L87 Difference]: Start difference. First operand 311 states and 413 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:17:00,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:17:00,966 INFO L93 Difference]: Finished difference Result 401 states and 521 transitions. [2023-11-29 06:17:00,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:17:00,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 51 [2023-11-29 06:17:00,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:17:00,970 INFO L225 Difference]: With dead ends: 401 [2023-11-29 06:17:00,970 INFO L226 Difference]: Without dead ends: 399 [2023-11-29 06:17:00,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 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 06:17:00,972 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 51 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:17:00,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 294 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:17:00,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2023-11-29 06:17:00,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 312. [2023-11-29 06:17:00,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 227 states have (on average 1.5814977973568283) internal successors, (359), 283 states have internal predecessors, (359), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:17:00,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 411 transitions. [2023-11-29 06:17:00,995 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 411 transitions. Word has length 51 [2023-11-29 06:17:00,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:17:00,995 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 411 transitions. [2023-11-29 06:17:00,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:17:00,995 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 411 transitions. [2023-11-29 06:17:00,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 06:17:00,996 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:17:00,996 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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 06:17:01,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-29 06:17:01,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 06:17:01,197 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:17:01,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:17:01,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1558259392, now seen corresponding path program 1 times [2023-11-29 06:17:01,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:17:01,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952948380] [2023-11-29 06:17:01,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:01,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:17:01,204 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:17:01,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1977989950] [2023-11-29 06:17:01,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:01,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:01,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:17:01,205 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:17:01,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 06:17:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:17:01,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:17:01,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:17:01,263 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:17:01,263 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:17:01,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:17:01,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952948380] [2023-11-29 06:17:01,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:17:01,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977989950] [2023-11-29 06:17:01,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977989950] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:17:01,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:17:01,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:17:01,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257392396] [2023-11-29 06:17:01,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:17:01,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:17:01,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:17:01,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:17:01,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:17:01,266 INFO L87 Difference]: Start difference. First operand 312 states and 411 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:17:01,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:17:01,324 INFO L93 Difference]: Finished difference Result 400 states and 515 transitions. [2023-11-29 06:17:01,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:17:01,325 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), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 52 [2023-11-29 06:17:01,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:17:01,327 INFO L225 Difference]: With dead ends: 400 [2023-11-29 06:17:01,327 INFO L226 Difference]: Without dead ends: 398 [2023-11-29 06:17:01,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 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 06:17:01,329 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 49 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:17:01,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 294 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:17:01,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-11-29 06:17:01,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 313. [2023-11-29 06:17:01,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 229 states have (on average 1.5502183406113537) internal successors, (355), 284 states have internal predecessors, (355), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:17:01,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 407 transitions. [2023-11-29 06:17:01,348 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 407 transitions. Word has length 52 [2023-11-29 06:17:01,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:17:01,348 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 407 transitions. [2023-11-29 06:17:01,348 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), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:17:01,348 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 407 transitions. [2023-11-29 06:17:01,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 06:17:01,349 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:17:01,349 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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 06:17:01,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 06:17:01,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:01,553 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:17:01,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:17:01,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1061442736, now seen corresponding path program 1 times [2023-11-29 06:17:01,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:17:01,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049183567] [2023-11-29 06:17:01,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:01,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:17:01,561 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:17:01,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1379314950] [2023-11-29 06:17:01,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:01,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:01,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:17:01,563 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:17:01,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 06:17:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:17:01,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:17:01,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:17:01,737 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:17:01,737 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:17:01,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:17:01,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049183567] [2023-11-29 06:17:01,737 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:17:01,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379314950] [2023-11-29 06:17:01,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379314950] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:17:01,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:17:01,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:17:01,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670137993] [2023-11-29 06:17:01,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:17:01,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:17:01,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:17:01,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:17:01,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:17:01,739 INFO L87 Difference]: Start difference. First operand 313 states and 407 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:17:01,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:17:01,945 INFO L93 Difference]: Finished difference Result 341 states and 435 transitions. [2023-11-29 06:17:01,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:17:01,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 53 [2023-11-29 06:17:01,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:17:01,948 INFO L225 Difference]: With dead ends: 341 [2023-11-29 06:17:01,948 INFO L226 Difference]: Without dead ends: 340 [2023-11-29 06:17:01,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 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 06:17:01,949 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 187 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:17:01,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 180 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:17:01,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2023-11-29 06:17:01,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 313. [2023-11-29 06:17:01,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 229 states have (on average 1.5458515283842795) internal successors, (354), 284 states have internal predecessors, (354), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:17:01,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 406 transitions. [2023-11-29 06:17:01,969 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 406 transitions. Word has length 53 [2023-11-29 06:17:01,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:17:01,969 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 406 transitions. [2023-11-29 06:17:01,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:17:01,969 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 406 transitions. [2023-11-29 06:17:01,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 06:17:01,970 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:17:01,970 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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 06:17:01,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 06:17:02,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:02,176 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:17:02,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:17:02,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1061428834, now seen corresponding path program 1 times [2023-11-29 06:17:02,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:17:02,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113905211] [2023-11-29 06:17:02,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:02,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:17:02,182 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:17:02,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2104272295] [2023-11-29 06:17:02,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:02,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:02,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:17:02,184 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:17:02,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 06:17:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:17:02,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:17:02,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:17:02,342 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:17:02,342 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:17:02,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:17:02,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113905211] [2023-11-29 06:17:02,343 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:17:02,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104272295] [2023-11-29 06:17:02,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104272295] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:17:02,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:17:02,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:17:02,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292111802] [2023-11-29 06:17:02,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:17:02,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:17:02,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:17:02,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:17:02,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:17:02,345 INFO L87 Difference]: Start difference. First operand 313 states and 406 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:17:02,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:17:02,537 INFO L93 Difference]: Finished difference Result 340 states and 434 transitions. [2023-11-29 06:17:02,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:17:02,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 53 [2023-11-29 06:17:02,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:17:02,539 INFO L225 Difference]: With dead ends: 340 [2023-11-29 06:17:02,539 INFO L226 Difference]: Without dead ends: 339 [2023-11-29 06:17:02,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 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 06:17:02,541 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 195 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:17:02,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 177 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:17:02,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-11-29 06:17:02,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 315. [2023-11-29 06:17:02,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 231 states have (on average 1.5411255411255411) internal successors, (356), 286 states have internal predecessors, (356), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:17:02,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 408 transitions. [2023-11-29 06:17:02,562 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 408 transitions. Word has length 53 [2023-11-29 06:17:02,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:17:02,562 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 408 transitions. [2023-11-29 06:17:02,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:17:02,562 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 408 transitions. [2023-11-29 06:17:02,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 06:17:02,563 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:17:02,563 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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 06:17:02,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-29 06:17:02,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:02,764 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:17:02,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:17:02,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1455013436, now seen corresponding path program 1 times [2023-11-29 06:17:02,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:17:02,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518460564] [2023-11-29 06:17:02,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:02,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:17:02,771 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:17:02,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1375193660] [2023-11-29 06:17:02,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:02,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:02,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:17:02,773 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:17:02,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 06:17:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:17:02,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:17:02,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:17:02,884 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:17:02,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:17:02,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:17:02,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518460564] [2023-11-29 06:17:02,884 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:17:02,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375193660] [2023-11-29 06:17:02,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375193660] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:17:02,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:17:02,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:17:02,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088894257] [2023-11-29 06:17:02,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:17:02,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:17:02,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:17:02,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:17:02,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:17:02,886 INFO L87 Difference]: Start difference. First operand 315 states and 408 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:17:03,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:17:03,219 INFO L93 Difference]: Finished difference Result 343 states and 411 transitions. [2023-11-29 06:17:03,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:17:03,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2023-11-29 06:17:03,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:17:03,221 INFO L225 Difference]: With dead ends: 343 [2023-11-29 06:17:03,221 INFO L226 Difference]: Without dead ends: 341 [2023-11-29 06:17:03,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 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 06:17:03,222 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 58 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:17:03,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 166 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:17:03,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-11-29 06:17:03,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 315. [2023-11-29 06:17:03,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 231 states have (on average 1.5281385281385282) internal successors, (353), 286 states have internal predecessors, (353), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:17:03,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 405 transitions. [2023-11-29 06:17:03,236 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 405 transitions. Word has length 54 [2023-11-29 06:17:03,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:17:03,236 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 405 transitions. [2023-11-29 06:17:03,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:17:03,236 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 405 transitions. [2023-11-29 06:17:03,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 06:17:03,237 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:17:03,237 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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 06:17:03,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 06:17:03,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:03,437 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:17:03,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:17:03,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1891430278, now seen corresponding path program 1 times [2023-11-29 06:17:03,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:17:03,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517677995] [2023-11-29 06:17:03,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:03,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:17:03,443 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:17:03,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [771851669] [2023-11-29 06:17:03,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:03,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:03,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:17:03,444 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:17:03,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 06:17:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:17:03,490 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:17:03,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:17:03,592 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:17:03,592 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:17:03,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:17:03,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517677995] [2023-11-29 06:17:03,593 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:17:03,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771851669] [2023-11-29 06:17:03,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771851669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:17:03,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:17:03,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:17:03,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119113712] [2023-11-29 06:17:03,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:17:03,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:17:03,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:17:03,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:17:03,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:17:03,595 INFO L87 Difference]: Start difference. First operand 315 states and 405 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:17:03,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:17:03,954 INFO L93 Difference]: Finished difference Result 315 states and 405 transitions. [2023-11-29 06:17:03,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:17:03,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2023-11-29 06:17:03,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:17:03,956 INFO L225 Difference]: With dead ends: 315 [2023-11-29 06:17:03,956 INFO L226 Difference]: Without dead ends: 313 [2023-11-29 06:17:03,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 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 06:17:03,957 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 88 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:17:03,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 84 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:17:03,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-11-29 06:17:03,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2023-11-29 06:17:03,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 231 states have (on average 1.5108225108225108) internal successors, (349), 284 states have internal predecessors, (349), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:17:03,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 401 transitions. [2023-11-29 06:17:03,977 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 401 transitions. Word has length 56 [2023-11-29 06:17:03,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:17:03,977 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 401 transitions. [2023-11-29 06:17:03,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:17:03,977 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 401 transitions. [2023-11-29 06:17:03,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 06:17:03,978 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:17:03,978 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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 06:17:03,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-29 06:17:04,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 06:17:04,179 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:17:04,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:17:04,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1477261894, now seen corresponding path program 1 times [2023-11-29 06:17:04,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:17:04,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890790193] [2023-11-29 06:17:04,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:04,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:17:04,184 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:17:04,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1422672461] [2023-11-29 06:17:04,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:04,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:04,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:17:04,186 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:17:04,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 06:17:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:17:04,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:17:04,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:17:04,310 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:17:04,310 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:17:04,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:17:04,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890790193] [2023-11-29 06:17:04,310 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:17:04,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422672461] [2023-11-29 06:17:04,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422672461] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:17:04,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:17:04,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:17:04,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031693372] [2023-11-29 06:17:04,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:17:04,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:17:04,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:17:04,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:17:04,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:17:04,312 INFO L87 Difference]: Start difference. First operand 313 states and 401 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:17:04,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:17:04,616 INFO L93 Difference]: Finished difference Result 394 states and 467 transitions. [2023-11-29 06:17:04,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:17:04,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2023-11-29 06:17:04,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:17:04,619 INFO L225 Difference]: With dead ends: 394 [2023-11-29 06:17:04,619 INFO L226 Difference]: Without dead ends: 392 [2023-11-29 06:17:04,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 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 06:17:04,619 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 70 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:17:04,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 151 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:17:04,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2023-11-29 06:17:04,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 321. [2023-11-29 06:17:04,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 239 states have (on average 1.502092050209205) internal successors, (359), 292 states have internal predecessors, (359), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:17:04,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 411 transitions. [2023-11-29 06:17:04,634 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 411 transitions. Word has length 56 [2023-11-29 06:17:04,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:17:04,634 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 411 transitions. [2023-11-29 06:17:04,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:17:04,634 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 411 transitions. [2023-11-29 06:17:04,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 06:17:04,635 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:17:04,635 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:17:04,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-29 06:17:04,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 06:17:04,835 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:17:04,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:17:04,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1923574198, now seen corresponding path program 1 times [2023-11-29 06:17:04,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:17:04,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622044849] [2023-11-29 06:17:04,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:04,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:17:04,841 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:17:04,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [611971874] [2023-11-29 06:17:04,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:04,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:04,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:17:04,842 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:17:04,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 06:17:04,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:17:04,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:17:04,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:17:04,949 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:17:04,949 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:17:04,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:17:04,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622044849] [2023-11-29 06:17:04,949 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:17:04,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611971874] [2023-11-29 06:17:04,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611971874] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:17:04,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:17:04,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:17:04,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411348798] [2023-11-29 06:17:04,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:17:04,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:17:04,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:17:04,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:17:04,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:17:04,951 INFO L87 Difference]: Start difference. First operand 321 states and 411 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:17:04,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:17:04,996 INFO L93 Difference]: Finished difference Result 321 states and 411 transitions. [2023-11-29 06:17:04,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:17:04,996 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2023-11-29 06:17:04,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:17:04,997 INFO L225 Difference]: With dead ends: 321 [2023-11-29 06:17:04,997 INFO L226 Difference]: Without dead ends: 320 [2023-11-29 06:17:04,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:17:04,998 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 101 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:17:04,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 406 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:17:04,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2023-11-29 06:17:05,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2023-11-29 06:17:05,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 239 states have (on average 1.4853556485355648) internal successors, (355), 291 states have internal predecessors, (355), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:17:05,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 407 transitions. [2023-11-29 06:17:05,014 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 407 transitions. Word has length 59 [2023-11-29 06:17:05,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:17:05,015 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 407 transitions. [2023-11-29 06:17:05,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:17:05,015 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 407 transitions. [2023-11-29 06:17:05,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 06:17:05,016 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:17:05,016 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:17:05,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-29 06:17:05,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 06:17:05,216 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:17:05,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:17:05,216 INFO L85 PathProgramCache]: Analyzing trace with hash -498741962, now seen corresponding path program 1 times [2023-11-29 06:17:05,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:17:05,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159360465] [2023-11-29 06:17:05,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:05,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:17:05,222 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:17:05,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1378324638] [2023-11-29 06:17:05,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:05,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:05,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:17:05,223 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:17:05,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 06:17:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:17:05,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:17:05,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:17:05,343 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:17:05,343 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:17:05,420 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:17:05,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:17:05,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159360465] [2023-11-29 06:17:05,420 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:17:05,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378324638] [2023-11-29 06:17:05,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378324638] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:17:05,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:17:05,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2023-11-29 06:17:05,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381087507] [2023-11-29 06:17:05,421 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:17:05,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:17:05,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:17:05,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:17:05,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:17:05,423 INFO L87 Difference]: Start difference. First operand 320 states and 407 transitions. Second operand has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 10 states have internal predecessors, (82), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:17:05,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:17:05,603 INFO L93 Difference]: Finished difference Result 897 states and 1098 transitions. [2023-11-29 06:17:05,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:17:05,603 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 10 states have internal predecessors, (82), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 60 [2023-11-29 06:17:05,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:17:05,608 INFO L225 Difference]: With dead ends: 897 [2023-11-29 06:17:05,608 INFO L226 Difference]: Without dead ends: 812 [2023-11-29 06:17:05,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:17:05,610 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 276 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:17:05,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 1073 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:17:05,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2023-11-29 06:17:05,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 675. [2023-11-29 06:17:05,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 557 states have (on average 1.4775583482944346) internal successors, (823), 614 states have internal predecessors, (823), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 06:17:05,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 943 transitions. [2023-11-29 06:17:05,645 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 943 transitions. Word has length 60 [2023-11-29 06:17:05,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:17:05,645 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 943 transitions. [2023-11-29 06:17:05,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 10 states have internal predecessors, (82), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:17:05,646 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 943 transitions. [2023-11-29 06:17:05,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 06:17:05,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:17:05,646 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2023-11-29 06:17:05,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 06:17:05,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 06:17:05,847 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:17:05,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:17:05,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1745313240, now seen corresponding path program 1 times [2023-11-29 06:17:05,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:17:05,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107633145] [2023-11-29 06:17:05,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:05,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:17:05,855 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:17:05,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1845761903] [2023-11-29 06:17:05,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:05,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:05,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:17:05,856 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:17:05,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 06:17:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:17:05,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:17:05,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:17:06,103 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:17:06,104 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:17:06,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:17:06,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107633145] [2023-11-29 06:17:06,210 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:17:06,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845761903] [2023-11-29 06:17:06,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845761903] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:17:06,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:17:06,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2023-11-29 06:17:06,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484160797] [2023-11-29 06:17:06,211 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:17:06,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:17:06,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:17:06,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:17:06,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:17:06,212 INFO L87 Difference]: Start difference. First operand 675 states and 943 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:17:06,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:17:06,616 INFO L93 Difference]: Finished difference Result 738 states and 992 transitions. [2023-11-29 06:17:06,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:17:06,617 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2023-11-29 06:17:06,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:17:06,624 INFO L225 Difference]: With dead ends: 738 [2023-11-29 06:17:06,624 INFO L226 Difference]: Without dead ends: 736 [2023-11-29 06:17:06,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:17:06,625 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 64 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:17:06,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 195 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:17:06,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2023-11-29 06:17:06,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 677. [2023-11-29 06:17:06,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 559 states have (on average 1.4686940966010733) internal successors, (821), 616 states have internal predecessors, (821), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 06:17:06,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 941 transitions. [2023-11-29 06:17:06,686 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 941 transitions. Word has length 62 [2023-11-29 06:17:06,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:17:06,687 INFO L495 AbstractCegarLoop]: Abstraction has 677 states and 941 transitions. [2023-11-29 06:17:06,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:17:06,687 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 941 transitions. [2023-11-29 06:17:06,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 06:17:06,688 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:17:06,688 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:17:06,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-29 06:17:06,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 06:17:06,889 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:17:06,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:17:06,890 INFO L85 PathProgramCache]: Analyzing trace with hash 830797341, now seen corresponding path program 1 times [2023-11-29 06:17:06,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:17:06,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035781096] [2023-11-29 06:17:06,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:06,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:17:06,898 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:17:06,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [26019144] [2023-11-29 06:17:06,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:06,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:06,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:17:06,907 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:17:06,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 06:17:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:17:06,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:17:06,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:17:07,059 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 06:17:07,060 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:17:07,200 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 06:17:07,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:17:07,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035781096] [2023-11-29 06:17:07,200 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:17:07,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26019144] [2023-11-29 06:17:07,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26019144] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:17:07,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:17:07,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 06:17:07,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8697667] [2023-11-29 06:17:07,201 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:17:07,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:17:07,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:17:07,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:17:07,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:17:07,203 INFO L87 Difference]: Start difference. First operand 677 states and 941 transitions. Second operand has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 06:17:08,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:17:08,045 INFO L93 Difference]: Finished difference Result 816 states and 1114 transitions. [2023-11-29 06:17:08,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:17:08,046 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 64 [2023-11-29 06:17:08,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:17:08,050 INFO L225 Difference]: With dead ends: 816 [2023-11-29 06:17:08,050 INFO L226 Difference]: Without dead ends: 815 [2023-11-29 06:17:08,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:17:08,051 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 174 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:17:08,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 224 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:17:08,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2023-11-29 06:17:08,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 701. [2023-11-29 06:17:08,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 583 states have (on average 1.4751286449399656) internal successors, (860), 640 states have internal predecessors, (860), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 06:17:08,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 980 transitions. [2023-11-29 06:17:08,126 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 980 transitions. Word has length 64 [2023-11-29 06:17:08,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:17:08,126 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 980 transitions. [2023-11-29 06:17:08,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 06:17:08,127 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 980 transitions. [2023-11-29 06:17:08,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 06:17:08,128 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:17:08,128 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:17:08,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 06:17:08,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 06:17:08,328 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:17:08,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:17:08,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1729864355, now seen corresponding path program 1 times [2023-11-29 06:17:08,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:17:08,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370946142] [2023-11-29 06:17:08,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:08,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:17:08,337 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:17:08,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1370427451] [2023-11-29 06:17:08,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:08,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:08,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:17:08,339 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:17:08,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 06:17:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:17:08,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:17:08,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:17:08,575 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:17:08,575 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:17:08,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:17:08,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370946142] [2023-11-29 06:17:08,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:17:08,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370427451] [2023-11-29 06:17:08,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370427451] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:17:08,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:17:08,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2023-11-29 06:17:08,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128403588] [2023-11-29 06:17:08,676 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:17:08,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:17:08,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:17:08,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:17:08,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:17:08,677 INFO L87 Difference]: Start difference. First operand 701 states and 980 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:17:08,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:17:08,975 INFO L93 Difference]: Finished difference Result 759 states and 1025 transitions. [2023-11-29 06:17:08,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:17:08,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 63 [2023-11-29 06:17:08,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:17:08,981 INFO L225 Difference]: With dead ends: 759 [2023-11-29 06:17:08,981 INFO L226 Difference]: Without dead ends: 757 [2023-11-29 06:17:08,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:17:08,982 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 61 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:17:08,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 199 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:17:08,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2023-11-29 06:17:09,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 703. [2023-11-29 06:17:09,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 585 states have (on average 1.4666666666666666) internal successors, (858), 642 states have internal predecessors, (858), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 06:17:09,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 978 transitions. [2023-11-29 06:17:09,025 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 978 transitions. Word has length 63 [2023-11-29 06:17:09,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:17:09,026 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 978 transitions. [2023-11-29 06:17:09,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:17:09,026 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 978 transitions. [2023-11-29 06:17:09,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 06:17:09,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:17:09,027 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:17:09,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-29 06:17:09,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 06:17:09,227 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:17:09,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:17:09,228 INFO L85 PathProgramCache]: Analyzing trace with hash -15086058, now seen corresponding path program 1 times [2023-11-29 06:17:09,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:17:09,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151186717] [2023-11-29 06:17:09,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:09,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:17:09,235 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:17:09,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [202622250] [2023-11-29 06:17:09,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:09,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:09,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:17:09,237 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:17:09,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 06:17:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:17:09,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:17:09,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:17:09,554 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-29 06:17:09,554 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:17:09,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:17:09,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151186717] [2023-11-29 06:17:09,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:17:09,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202622250] [2023-11-29 06:17:09,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202622250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:17:09,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:17:09,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:17:09,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530050219] [2023-11-29 06:17:09,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:17:09,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:17:09,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:17:09,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:17:09,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:17:09,557 INFO L87 Difference]: Start difference. First operand 703 states and 978 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:17:12,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:17:12,542 INFO L93 Difference]: Finished difference Result 731 states and 981 transitions. [2023-11-29 06:17:12,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:17:12,543 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 65 [2023-11-29 06:17:12,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:17:12,547 INFO L225 Difference]: With dead ends: 731 [2023-11-29 06:17:12,547 INFO L226 Difference]: Without dead ends: 729 [2023-11-29 06:17:12,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 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 06:17:12,547 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 185 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:17:12,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 309 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 06:17:12,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2023-11-29 06:17:12,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 703. [2023-11-29 06:17:12,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 585 states have (on average 1.4547008547008546) internal successors, (851), 642 states have internal predecessors, (851), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 06:17:12,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 971 transitions. [2023-11-29 06:17:12,590 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 971 transitions. Word has length 65 [2023-11-29 06:17:12,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:17:12,590 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 971 transitions. [2023-11-29 06:17:12,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:17:12,590 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 971 transitions. [2023-11-29 06:17:12,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 06:17:12,591 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:17:12,591 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:17:12,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-29 06:17:12,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:12,792 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:17:12,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:17:12,792 INFO L85 PathProgramCache]: Analyzing trace with hash 923639580, now seen corresponding path program 1 times [2023-11-29 06:17:12,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:17:12,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164734110] [2023-11-29 06:17:12,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:12,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:17:12,799 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:17:12,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [560265069] [2023-11-29 06:17:12,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:12,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:12,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:17:12,801 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:17:12,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 06:17:12,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:17:12,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:17:12,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:17:12,909 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-29 06:17:12,910 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:17:12,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:17:12,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164734110] [2023-11-29 06:17:12,910 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:17:12,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560265069] [2023-11-29 06:17:12,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560265069] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:17:12,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:17:12,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:17:12,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134155645] [2023-11-29 06:17:12,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:17:12,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:17:12,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:17:12,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:17:12,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:17:12,912 INFO L87 Difference]: Start difference. First operand 703 states and 971 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:17:13,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:17:13,416 INFO L93 Difference]: Finished difference Result 759 states and 1014 transitions. [2023-11-29 06:17:13,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:17:13,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 66 [2023-11-29 06:17:13,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:17:13,421 INFO L225 Difference]: With dead ends: 759 [2023-11-29 06:17:13,421 INFO L226 Difference]: Without dead ends: 758 [2023-11-29 06:17:13,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 63 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 06:17:13,422 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 147 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:17:13,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 180 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:17:13,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2023-11-29 06:17:13,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 703. [2023-11-29 06:17:13,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 585 states have (on average 1.4495726495726495) internal successors, (848), 642 states have internal predecessors, (848), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 06:17:13,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 968 transitions. [2023-11-29 06:17:13,507 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 968 transitions. Word has length 66 [2023-11-29 06:17:13,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:17:13,507 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 968 transitions. [2023-11-29 06:17:13,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:17:13,508 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 968 transitions. [2023-11-29 06:17:13,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-29 06:17:13,508 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:17:13,509 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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 06:17:13,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 06:17:13,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-29 06:17:13,716 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:17:13,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:17:13,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1431944031, now seen corresponding path program 1 times [2023-11-29 06:17:13,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:17:13,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107269430] [2023-11-29 06:17:13,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:13,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:17:13,723 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:17:13,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1290674843] [2023-11-29 06:17:13,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:13,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:13,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:17:13,724 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:17:13,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 06:17:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:17:13,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:17:13,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:17:13,825 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-29 06:17:13,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:17:13,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:17:13,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107269430] [2023-11-29 06:17:13,826 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:17:13,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290674843] [2023-11-29 06:17:13,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290674843] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:17:13,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:17:13,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:17:13,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221494727] [2023-11-29 06:17:13,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:17:13,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:17:13,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:17:13,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:17:13,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:17:13,827 INFO L87 Difference]: Start difference. First operand 703 states and 968 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:17:14,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:17:14,486 INFO L93 Difference]: Finished difference Result 758 states and 1011 transitions. [2023-11-29 06:17:14,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:17:14,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 67 [2023-11-29 06:17:14,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:17:14,490 INFO L225 Difference]: With dead ends: 758 [2023-11-29 06:17:14,490 INFO L226 Difference]: Without dead ends: 755 [2023-11-29 06:17:14,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 64 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 06:17:14,491 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 84 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:17:14,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 221 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:17:14,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2023-11-29 06:17:14,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 709. [2023-11-29 06:17:14,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 591 states have (on average 1.4399323181049068) internal successors, (851), 648 states have internal predecessors, (851), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 06:17:14,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 971 transitions. [2023-11-29 06:17:14,532 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 971 transitions. Word has length 67 [2023-11-29 06:17:14,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:17:14,532 INFO L495 AbstractCegarLoop]: Abstraction has 709 states and 971 transitions. [2023-11-29 06:17:14,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:17:14,532 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 971 transitions. [2023-11-29 06:17:14,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-29 06:17:14,533 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:17:14,533 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-11-29 06:17:14,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-29 06:17:14,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-29 06:17:14,733 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:17:14,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:17:14,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1208303185, now seen corresponding path program 1 times [2023-11-29 06:17:14,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:17:14,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140987815] [2023-11-29 06:17:14,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:14,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:17:14,741 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:17:14,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [869873545] [2023-11-29 06:17:14,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:14,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:14,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:17:14,743 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:17:14,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 06:17:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:17:14,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:17:14,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:17:15,660 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:17:15,661 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:17:15,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:17:15,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140987815] [2023-11-29 06:17:15,783 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:17:15,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869873545] [2023-11-29 06:17:15,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869873545] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:17:15,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:17:15,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:17:15,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885783688] [2023-11-29 06:17:15,784 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:17:15,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:17:15,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:17:15,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:17:15,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:17:15,785 INFO L87 Difference]: Start difference. First operand 709 states and 971 transitions. Second operand has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 06:17:19,979 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 06:17:24,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:17:24,823 INFO L93 Difference]: Finished difference Result 955 states and 1241 transitions. [2023-11-29 06:17:24,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:17:24,824 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 73 [2023-11-29 06:17:24,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:17:24,828 INFO L225 Difference]: With dead ends: 955 [2023-11-29 06:17:24,828 INFO L226 Difference]: Without dead ends: 951 [2023-11-29 06:17:24,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:17:24,829 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 563 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:17:24,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 418 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 632 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2023-11-29 06:17:24,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2023-11-29 06:17:24,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 788. [2023-11-29 06:17:24,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 662 states have (on average 1.4501510574018126) internal successors, (960), 720 states have internal predecessors, (960), 68 states have call successors, (68), 5 states have call predecessors, (68), 5 states have return successors, (68), 62 states have call predecessors, (68), 68 states have call successors, (68) [2023-11-29 06:17:24,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1096 transitions. [2023-11-29 06:17:24,887 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1096 transitions. Word has length 73 [2023-11-29 06:17:24,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:17:24,887 INFO L495 AbstractCegarLoop]: Abstraction has 788 states and 1096 transitions. [2023-11-29 06:17:24,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 06:17:24,888 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1096 transitions. [2023-11-29 06:17:24,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-29 06:17:24,888 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:17:24,889 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-11-29 06:17:24,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 06:17:25,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-29 06:17:25,089 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:17:25,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:17:25,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1197306863, now seen corresponding path program 1 times [2023-11-29 06:17:25,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:17:25,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253390364] [2023-11-29 06:17:25,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:25,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:17:25,097 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:17:25,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [887978597] [2023-11-29 06:17:25,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:25,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:25,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:17:25,099 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:17:25,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 06:17:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:17:25,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:17:25,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:17:25,676 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:17:25,676 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:17:25,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:17:25,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253390364] [2023-11-29 06:17:25,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:17:25,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887978597] [2023-11-29 06:17:25,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887978597] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:17:25,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:17:25,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:17:25,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628051700] [2023-11-29 06:17:25,890 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:17:25,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:17:25,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:17:25,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:17:25,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:17:25,892 INFO L87 Difference]: Start difference. First operand 788 states and 1096 transitions. Second operand has 11 states, 9 states have (on average 6.222222222222222) internal successors, (56), 10 states have internal predecessors, (56), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:17:31,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:17:33,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:17:35,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:17:39,516 WARN L539 Checker$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 06:17:40,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:17:40,871 INFO L93 Difference]: Finished difference Result 1046 states and 1445 transitions. [2023-11-29 06:17:40,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:17:40,871 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.222222222222222) internal successors, (56), 10 states have internal predecessors, (56), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 74 [2023-11-29 06:17:40,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:17:40,875 INFO L225 Difference]: With dead ends: 1046 [2023-11-29 06:17:40,875 INFO L226 Difference]: Without dead ends: 1042 [2023-11-29 06:17:40,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:17:40,876 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 356 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 21 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:17:40,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 584 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 866 Invalid, 2 Unknown, 0 Unchecked, 14.7s Time] [2023-11-29 06:17:40,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2023-11-29 06:17:40,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 784. [2023-11-29 06:17:40,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 662 states have (on average 1.4108761329305135) internal successors, (934), 716 states have internal predecessors, (934), 68 states have call successors, (68), 5 states have call predecessors, (68), 5 states have return successors, (68), 62 states have call predecessors, (68), 68 states have call successors, (68) [2023-11-29 06:17:40,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1070 transitions. [2023-11-29 06:17:40,936 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1070 transitions. Word has length 74 [2023-11-29 06:17:40,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:17:40,936 INFO L495 AbstractCegarLoop]: Abstraction has 784 states and 1070 transitions. [2023-11-29 06:17:40,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.222222222222222) internal successors, (56), 10 states have internal predecessors, (56), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:17:40,937 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1070 transitions. [2023-11-29 06:17:40,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 06:17:40,937 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:17:40,937 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-11-29 06:17:40,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2023-11-29 06:17:41,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:41,138 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:17:41,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:17:41,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1538192979, now seen corresponding path program 1 times [2023-11-29 06:17:41,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:17:41,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244303044] [2023-11-29 06:17:41,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:41,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:17:41,144 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:17:41,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [278514532] [2023-11-29 06:17:41,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:41,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:41,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:17:41,146 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:17:41,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 06:17:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:17:41,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 06:17:41,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:17:41,667 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 12 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:17:41,667 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:17:41,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:17:41,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244303044] [2023-11-29 06:17:41,933 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:17:41,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278514532] [2023-11-29 06:17:41,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278514532] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:17:41,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:17:41,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:17:41,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968500064] [2023-11-29 06:17:41,933 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:17:41,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:17:41,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:17:41,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:17:41,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:17:41,935 INFO L87 Difference]: Start difference. First operand 784 states and 1070 transitions. Second operand has 12 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:17:45,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:17:45,042 INFO L93 Difference]: Finished difference Result 1139 states and 1497 transitions. [2023-11-29 06:17:45,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:17:45,042 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 75 [2023-11-29 06:17:45,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:17:45,048 INFO L225 Difference]: With dead ends: 1139 [2023-11-29 06:17:45,048 INFO L226 Difference]: Without dead ends: 1131 [2023-11-29 06:17:45,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:17:45,049 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 503 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 1845 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 1884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:17:45,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 457 Invalid, 1884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1845 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 06:17:45,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-11-29 06:17:45,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 954. [2023-11-29 06:17:45,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 816 states have (on average 1.4424019607843137) internal successors, (1177), 871 states have internal predecessors, (1177), 84 states have call successors, (84), 5 states have call predecessors, (84), 5 states have return successors, (84), 77 states have call predecessors, (84), 84 states have call successors, (84) [2023-11-29 06:17:45,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1345 transitions. [2023-11-29 06:17:45,120 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1345 transitions. Word has length 75 [2023-11-29 06:17:45,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:17:45,120 INFO L495 AbstractCegarLoop]: Abstraction has 954 states and 1345 transitions. [2023-11-29 06:17:45,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:17:45,120 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1345 transitions. [2023-11-29 06:17:45,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 06:17:45,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:17:45,121 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-11-29 06:17:45,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 06:17:45,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:45,321 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:17:45,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:17:45,322 INFO L85 PathProgramCache]: Analyzing trace with hash 439342163, now seen corresponding path program 1 times [2023-11-29 06:17:45,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:17:45,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847965467] [2023-11-29 06:17:45,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:45,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:17:45,328 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:17:45,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2100564360] [2023-11-29 06:17:45,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:45,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:45,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:17:45,330 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:17:45,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 06:17:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:17:45,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 06:17:45,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:17:45,915 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 12 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:17:45,916 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:17:46,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:17:46,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847965467] [2023-11-29 06:17:46,140 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:17:46,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100564360] [2023-11-29 06:17:46,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100564360] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:17:46,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:17:46,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:17:46,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439444340] [2023-11-29 06:17:46,140 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:17:46,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:17:46,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:17:46,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:17:46,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:17:46,142 INFO L87 Difference]: Start difference. First operand 954 states and 1345 transitions. Second operand has 12 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:17:53,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:17:55,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:17:56,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:17:56,634 INFO L93 Difference]: Finished difference Result 1075 states and 1462 transitions. [2023-11-29 06:17:56,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:17:56,634 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 76 [2023-11-29 06:17:56,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:17:56,640 INFO L225 Difference]: With dead ends: 1075 [2023-11-29 06:17:56,641 INFO L226 Difference]: Without dead ends: 1073 [2023-11-29 06:17:56,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:17:56,642 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 450 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:17:56,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 431 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1396 Invalid, 1 Unknown, 0 Unchecked, 10.1s Time] [2023-11-29 06:17:56,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2023-11-29 06:17:56,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 994. [2023-11-29 06:17:56,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 852 states have (on average 1.4354460093896713) internal successors, (1223), 907 states have internal predecessors, (1223), 88 states have call successors, (88), 5 states have call predecessors, (88), 5 states have return successors, (88), 81 states have call predecessors, (88), 88 states have call successors, (88) [2023-11-29 06:17:56,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1399 transitions. [2023-11-29 06:17:56,732 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1399 transitions. Word has length 76 [2023-11-29 06:17:56,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:17:56,733 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1399 transitions. [2023-11-29 06:17:56,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:17:56,733 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1399 transitions. [2023-11-29 06:17:56,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 06:17:56,733 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:17:56,734 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-11-29 06:17:56,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-11-29 06:17:56,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 06:17:56,934 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:17:56,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:17:56,934 INFO L85 PathProgramCache]: Analyzing trace with hash 734705237, now seen corresponding path program 1 times [2023-11-29 06:17:56,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:17:56,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899995146] [2023-11-29 06:17:56,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:56,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:17:56,943 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:17:56,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [20248266] [2023-11-29 06:17:56,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:17:56,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:17:56,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:17:56,945 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:17:56,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 06:17:56,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:17:56,999 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 06:17:57,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:17:57,956 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:17:57,956 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:17:58,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:17:58,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899995146] [2023-11-29 06:17:58,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:17:58,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20248266] [2023-11-29 06:17:58,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20248266] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:17:58,293 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:17:58,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:17:58,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094772402] [2023-11-29 06:17:58,293 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:17:58,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:17:58,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:17:58,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:17:58,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:17:58,294 INFO L87 Difference]: Start difference. First operand 994 states and 1399 transitions. Second operand has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:18:13,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:18:17,049 WARN L539 Checker$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 06:18:21,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:18:22,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:18:29,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:18:30,893 WARN L539 Checker$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 06:18:35,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:18:36,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:18:41,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:18:49,697 WARN L539 Checker$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 06:18:55,698 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 [0] [2023-11-29 06:18:56,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:18:56,247 INFO L93 Difference]: Finished difference Result 1344 states and 1735 transitions. [2023-11-29 06:18:56,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 06:18:56,247 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 77 [2023-11-29 06:18:56,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:18:56,252 INFO L225 Difference]: With dead ends: 1344 [2023-11-29 06:18:56,252 INFO L226 Difference]: Without dead ends: 1341 [2023-11-29 06:18:56,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2023-11-29 06:18:56,253 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 735 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 2303 mSolverCounterSat, 34 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 2344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2303 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:18:56,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 524 Invalid, 2344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2303 Invalid, 7 Unknown, 0 Unchecked, 56.6s Time] [2023-11-29 06:18:56,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2023-11-29 06:18:56,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1055. [2023-11-29 06:18:56,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1055 states, 907 states have (on average 1.4310915104740904) internal successors, (1298), 962 states have internal predecessors, (1298), 94 states have call successors, (94), 5 states have call predecessors, (94), 5 states have return successors, (94), 87 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-29 06:18:56,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1486 transitions. [2023-11-29 06:18:56,338 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1486 transitions. Word has length 77 [2023-11-29 06:18:56,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:18:56,338 INFO L495 AbstractCegarLoop]: Abstraction has 1055 states and 1486 transitions. [2023-11-29 06:18:56,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:18:56,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1486 transitions. [2023-11-29 06:18:56,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 06:18:56,339 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:18:56,339 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 06:18:56,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 06:18:56,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:18:56,540 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:18:56,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:18:56,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1301025941, now seen corresponding path program 1 times [2023-11-29 06:18:56,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:18:56,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893481880] [2023-11-29 06:18:56,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:18:56,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:18:56,546 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:18:56,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [874787802] [2023-11-29 06:18:56,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:18:56,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:18:56,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:18:56,547 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:18:56,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 06:18:56,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:18:56,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:18:56,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:18:57,367 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 23 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:18:57,367 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:18:57,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:18:57,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893481880] [2023-11-29 06:18:57,849 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:18:57,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874787802] [2023-11-29 06:18:57,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874787802] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:18:57,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:18:57,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:18:57,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535565985] [2023-11-29 06:18:57,849 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:18:57,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:18:57,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:18:57,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:18:57,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:18:57,850 INFO L87 Difference]: Start difference. First operand 1055 states and 1486 transitions. Second operand has 11 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:19:02,082 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 06:19:06,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:19:08,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:19:16,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:19:22,002 WARN L539 Checker$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 06:19:24,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:19:28,130 WARN L539 Checker$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 06:19:32,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:19:36,144 WARN L539 Checker$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 06:19:37,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:19:42,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:19:47,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:19:49,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:19:54,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:19:59,633 WARN L539 Checker$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 06:20:01,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:01,826 INFO L93 Difference]: Finished difference Result 1430 states and 1975 transitions. [2023-11-29 06:20:01,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:20:01,826 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 78 [2023-11-29 06:20:01,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:01,833 INFO L225 Difference]: With dead ends: 1430 [2023-11-29 06:20:01,833 INFO L226 Difference]: Without dead ends: 1427 [2023-11-29 06:20:01,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:20:01,834 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 318 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 1691 mSolverCounterSat, 12 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 1716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1691 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:01,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 726 Invalid, 1716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1691 Invalid, 13 Unknown, 0 Unchecked, 63.0s Time] [2023-11-29 06:20:01,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2023-11-29 06:20:01,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1117. [2023-11-29 06:20:01,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 964 states have (on average 1.4325726141078838) internal successors, (1381), 1019 states have internal predecessors, (1381), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 92 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 06:20:01,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1579 transitions. [2023-11-29 06:20:01,944 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1579 transitions. Word has length 78 [2023-11-29 06:20:01,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:01,945 INFO L495 AbstractCegarLoop]: Abstraction has 1117 states and 1579 transitions. [2023-11-29 06:20:01,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:20:01,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1579 transitions. [2023-11-29 06:20:01,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 06:20:01,945 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:01,946 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-29 06:20:01,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2023-11-29 06:20:02,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 06:20:02,146 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:20:02,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:02,147 INFO L85 PathProgramCache]: Analyzing trace with hash 2045201422, now seen corresponding path program 1 times [2023-11-29 06:20:02,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:02,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102024328] [2023-11-29 06:20:02,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:02,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:02,155 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:02,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1984926162] [2023-11-29 06:20:02,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:02,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:02,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:02,157 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:02,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 06:20:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:02,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:20:02,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:02,572 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-29 06:20:02,572 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:02,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:02,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102024328] [2023-11-29 06:20:02,717 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:02,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984926162] [2023-11-29 06:20:02,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984926162] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:20:02,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:20:02,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:20:02,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914265569] [2023-11-29 06:20:02,718 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:02,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:20:02,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:02,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:20:02,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:20:02,719 INFO L87 Difference]: Start difference. First operand 1117 states and 1579 transitions. Second operand has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 06:20:03,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:03,956 INFO L93 Difference]: Finished difference Result 1365 states and 1901 transitions. [2023-11-29 06:20:03,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:20:03,957 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 84 [2023-11-29 06:20:03,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:03,962 INFO L225 Difference]: With dead ends: 1365 [2023-11-29 06:20:03,962 INFO L226 Difference]: Without dead ends: 1363 [2023-11-29 06:20:03,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 111 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 06:20:03,963 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 443 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:03,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 315 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:20:03,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2023-11-29 06:20:04,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1282. [2023-11-29 06:20:04,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1111 states have (on average 1.4572457245724573) internal successors, (1619), 1165 states have internal predecessors, (1619), 117 states have call successors, (117), 5 states have call predecessors, (117), 5 states have return successors, (117), 111 states have call predecessors, (117), 117 states have call successors, (117) [2023-11-29 06:20:04,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1853 transitions. [2023-11-29 06:20:04,077 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1853 transitions. Word has length 84 [2023-11-29 06:20:04,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:04,077 INFO L495 AbstractCegarLoop]: Abstraction has 1282 states and 1853 transitions. [2023-11-29 06:20:04,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 06:20:04,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1853 transitions. [2023-11-29 06:20:04,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-29 06:20:04,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:04,078 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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 06:20:04,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2023-11-29 06:20:04,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 06:20:04,278 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:20:04,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:04,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1023265279, now seen corresponding path program 1 times [2023-11-29 06:20:04,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:04,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31103173] [2023-11-29 06:20:04,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:04,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:04,284 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:04,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [545500346] [2023-11-29 06:20:04,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:04,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:04,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:04,285 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:04,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 06:20:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:04,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:20:04,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:04,630 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-29 06:20:04,630 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:04,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:04,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31103173] [2023-11-29 06:20:04,983 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:04,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545500346] [2023-11-29 06:20:04,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545500346] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:20:04,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:20:04,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:20:04,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477058520] [2023-11-29 06:20:04,983 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:04,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:20:04,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:04,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:20:04,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:20:04,985 INFO L87 Difference]: Start difference. First operand 1282 states and 1853 transitions. Second operand has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 06:20:05,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:05,630 INFO L93 Difference]: Finished difference Result 1295 states and 1856 transitions. [2023-11-29 06:20:05,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:20:05,631 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 85 [2023-11-29 06:20:05,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:05,637 INFO L225 Difference]: With dead ends: 1295 [2023-11-29 06:20:05,637 INFO L226 Difference]: Without dead ends: 1289 [2023-11-29 06:20:05,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:20:05,638 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 297 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:05,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 330 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:20:05,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2023-11-29 06:20:05,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1202. [2023-11-29 06:20:05,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1202 states, 1046 states have (on average 1.4082217973231357) internal successors, (1473), 1093 states have internal predecessors, (1473), 108 states have call successors, (108), 5 states have call predecessors, (108), 5 states have return successors, (108), 103 states have call predecessors, (108), 108 states have call successors, (108) [2023-11-29 06:20:05,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 1689 transitions. [2023-11-29 06:20:05,767 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 1689 transitions. Word has length 85 [2023-11-29 06:20:05,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:05,767 INFO L495 AbstractCegarLoop]: Abstraction has 1202 states and 1689 transitions. [2023-11-29 06:20:05,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 06:20:05,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 1689 transitions. [2023-11-29 06:20:05,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-29 06:20:05,768 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:05,768 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 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] [2023-11-29 06:20:05,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-29 06:20:05,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 06:20:05,969 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:20:05,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:05,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1582020818, now seen corresponding path program 1 times [2023-11-29 06:20:05,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:05,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462756478] [2023-11-29 06:20:05,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:05,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:05,979 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:05,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [915244565] [2023-11-29 06:20:05,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:05,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:05,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:05,981 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:05,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 06:20:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:06,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:20:06,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:06,314 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-29 06:20:06,314 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:06,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:06,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462756478] [2023-11-29 06:20:06,370 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:06,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915244565] [2023-11-29 06:20:06,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915244565] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:20:06,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:20:06,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:20:06,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524134606] [2023-11-29 06:20:06,370 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:06,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:20:06,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:06,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:20:06,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:20:06,371 INFO L87 Difference]: Start difference. First operand 1202 states and 1689 transitions. Second operand has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 06:20:07,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:07,886 INFO L93 Difference]: Finished difference Result 1348 states and 1870 transitions. [2023-11-29 06:20:07,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:20:07,886 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 88 [2023-11-29 06:20:07,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:07,893 INFO L225 Difference]: With dead ends: 1348 [2023-11-29 06:20:07,893 INFO L226 Difference]: Without dead ends: 1344 [2023-11-29 06:20:07,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 85 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 06:20:07,894 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 196 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:07,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 176 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 06:20:07,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2023-11-29 06:20:08,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1162. [2023-11-29 06:20:08,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1006 states have (on average 1.3667992047713717) internal successors, (1375), 1053 states have internal predecessors, (1375), 110 states have call successors, (110), 5 states have call predecessors, (110), 5 states have return successors, (110), 103 states have call predecessors, (110), 110 states have call successors, (110) [2023-11-29 06:20:08,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1595 transitions. [2023-11-29 06:20:08,016 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1595 transitions. Word has length 88 [2023-11-29 06:20:08,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:08,016 INFO L495 AbstractCegarLoop]: Abstraction has 1162 states and 1595 transitions. [2023-11-29 06:20:08,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 06:20:08,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1595 transitions. [2023-11-29 06:20:08,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-29 06:20:08,017 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:08,017 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, 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 06:20:08,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 06:20:08,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:08,218 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:20:08,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:08,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1746867131, now seen corresponding path program 1 times [2023-11-29 06:20:08,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:08,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884968750] [2023-11-29 06:20:08,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:08,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:08,225 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:08,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1256230108] [2023-11-29 06:20:08,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:08,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:08,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:08,227 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:08,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 06:20:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:08,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:20:08,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:08,363 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-29 06:20:08,364 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:08,483 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-29 06:20:08,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:08,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884968750] [2023-11-29 06:20:08,483 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:08,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256230108] [2023-11-29 06:20:08,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256230108] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:20:08,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:20:08,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-11-29 06:20:08,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062909673] [2023-11-29 06:20:08,484 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:08,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:20:08,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:08,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:20:08,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:20:08,485 INFO L87 Difference]: Start difference. First operand 1162 states and 1595 transitions. Second operand has 7 states, 6 states have (on average 14.5) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 06:20:09,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:09,145 INFO L93 Difference]: Finished difference Result 1244 states and 1672 transitions. [2023-11-29 06:20:09,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:20:09,145 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 90 [2023-11-29 06:20:09,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:09,154 INFO L225 Difference]: With dead ends: 1244 [2023-11-29 06:20:09,154 INFO L226 Difference]: Without dead ends: 1150 [2023-11-29 06:20:09,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:20:09,156 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 72 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:09,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 194 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:20:09,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2023-11-29 06:20:09,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 1106. [2023-11-29 06:20:09,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 957 states have (on average 1.3960292580982236) internal successors, (1336), 1003 states have internal predecessors, (1336), 103 states have call successors, (103), 5 states have call predecessors, (103), 5 states have return successors, (103), 97 states have call predecessors, (103), 103 states have call successors, (103) [2023-11-29 06:20:09,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1542 transitions. [2023-11-29 06:20:09,302 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1542 transitions. Word has length 90 [2023-11-29 06:20:09,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:09,302 INFO L495 AbstractCegarLoop]: Abstraction has 1106 states and 1542 transitions. [2023-11-29 06:20:09,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 06:20:09,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1542 transitions. [2023-11-29 06:20:09,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 06:20:09,303 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:09,303 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 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] [2023-11-29 06:20:09,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2023-11-29 06:20:09,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:09,504 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:20:09,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:09,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1798005189, now seen corresponding path program 1 times [2023-11-29 06:20:09,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:09,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030832323] [2023-11-29 06:20:09,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:09,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:09,510 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:09,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [291777162] [2023-11-29 06:20:09,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:09,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:09,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:09,511 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:09,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 06:20:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:09,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:20:09,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:09,807 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-29 06:20:09,807 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:09,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:09,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030832323] [2023-11-29 06:20:09,927 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:09,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291777162] [2023-11-29 06:20:09,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291777162] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:20:09,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:20:09,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:20:09,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810946421] [2023-11-29 06:20:09,927 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:09,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:20:09,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:09,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:20:09,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:20:09,928 INFO L87 Difference]: Start difference. First operand 1106 states and 1542 transitions. Second operand has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 06:20:11,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:11,977 INFO L93 Difference]: Finished difference Result 1143 states and 1542 transitions. [2023-11-29 06:20:11,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:20:11,978 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 89 [2023-11-29 06:20:11,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:11,982 INFO L225 Difference]: With dead ends: 1143 [2023-11-29 06:20:11,982 INFO L226 Difference]: Without dead ends: 1124 [2023-11-29 06:20:11,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:20:11,983 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 317 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:11,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 349 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 06:20:11,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2023-11-29 06:20:12,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1064. [2023-11-29 06:20:12,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 922 states have (on average 1.3752711496746204) internal successors, (1268), 966 states have internal predecessors, (1268), 98 states have call successors, (98), 5 states have call predecessors, (98), 5 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2023-11-29 06:20:12,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1464 transitions. [2023-11-29 06:20:12,085 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1464 transitions. Word has length 89 [2023-11-29 06:20:12,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:12,086 INFO L495 AbstractCegarLoop]: Abstraction has 1064 states and 1464 transitions. [2023-11-29 06:20:12,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 06:20:12,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1464 transitions. [2023-11-29 06:20:12,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 06:20:12,087 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:12,087 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:20:12,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-29 06:20:12,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:12,287 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:20:12,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:12,288 INFO L85 PathProgramCache]: Analyzing trace with hash -22969960, now seen corresponding path program 1 times [2023-11-29 06:20:12,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:12,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055638878] [2023-11-29 06:20:12,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:12,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:12,294 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:12,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1416022297] [2023-11-29 06:20:12,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:12,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:12,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:12,295 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:12,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 06:20:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:12,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:20:12,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:12,539 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:20:12,539 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:12,664 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:20:12,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:12,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055638878] [2023-11-29 06:20:12,665 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:12,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416022297] [2023-11-29 06:20:12,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416022297] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:20:12,665 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:20:12,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 06:20:12,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399156073] [2023-11-29 06:20:12,665 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:12,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:20:12,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:12,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:20:12,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:20:12,667 INFO L87 Difference]: Start difference. First operand 1064 states and 1464 transitions. Second operand has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 8 states have internal predecessors, (122), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-29 06:20:13,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:13,250 INFO L93 Difference]: Finished difference Result 1280 states and 1690 transitions. [2023-11-29 06:20:13,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:20:13,251 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 8 states have internal predecessors, (122), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 98 [2023-11-29 06:20:13,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:13,256 INFO L225 Difference]: With dead ends: 1280 [2023-11-29 06:20:13,256 INFO L226 Difference]: Without dead ends: 1278 [2023-11-29 06:20:13,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:20:13,257 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 472 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:13,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 398 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:20:13,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2023-11-29 06:20:13,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1118. [2023-11-29 06:20:13,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 970 states have (on average 1.3670103092783505) internal successors, (1326), 1014 states have internal predecessors, (1326), 104 states have call successors, (104), 5 states have call predecessors, (104), 5 states have return successors, (104), 98 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 06:20:13,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 1534 transitions. [2023-11-29 06:20:13,434 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 1534 transitions. Word has length 98 [2023-11-29 06:20:13,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:13,434 INFO L495 AbstractCegarLoop]: Abstraction has 1118 states and 1534 transitions. [2023-11-29 06:20:13,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 8 states have internal predecessors, (122), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-29 06:20:13,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 1534 transitions. [2023-11-29 06:20:13,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 06:20:13,435 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:13,435 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:20:13,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-29 06:20:13,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:13,636 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:20:13,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:13,636 INFO L85 PathProgramCache]: Analyzing trace with hash -22983862, now seen corresponding path program 1 times [2023-11-29 06:20:13,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:13,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315060360] [2023-11-29 06:20:13,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:13,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:13,644 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:13,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2098719905] [2023-11-29 06:20:13,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:13,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:13,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:13,647 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:13,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 06:20:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:13,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:20:13,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:13,941 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:20:13,941 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:14,130 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:20:14,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:14,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315060360] [2023-11-29 06:20:14,131 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:14,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098719905] [2023-11-29 06:20:14,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098719905] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:20:14,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:20:14,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 06:20:14,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151507012] [2023-11-29 06:20:14,131 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:14,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:20:14,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:14,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:20:14,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:20:14,133 INFO L87 Difference]: Start difference. First operand 1118 states and 1534 transitions. Second operand has 12 states, 11 states have (on average 11.090909090909092) internal successors, (122), 12 states have internal predecessors, (122), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-29 06:20:15,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:15,188 INFO L93 Difference]: Finished difference Result 1699 states and 2287 transitions. [2023-11-29 06:20:15,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:20:15,188 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.090909090909092) internal successors, (122), 12 states have internal predecessors, (122), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 98 [2023-11-29 06:20:15,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:15,193 INFO L225 Difference]: With dead ends: 1699 [2023-11-29 06:20:15,193 INFO L226 Difference]: Without dead ends: 1697 [2023-11-29 06:20:15,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=330, Unknown=0, NotChecked=0, Total=506 [2023-11-29 06:20:15,194 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 1494 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:15,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 685 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:20:15,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2023-11-29 06:20:15,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1264. [2023-11-29 06:20:15,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1103 states have (on average 1.371713508612874) internal successors, (1513), 1147 states have internal predecessors, (1513), 117 states have call successors, (117), 5 states have call predecessors, (117), 5 states have return successors, (117), 111 states have call predecessors, (117), 117 states have call successors, (117) [2023-11-29 06:20:15,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1747 transitions. [2023-11-29 06:20:15,335 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1747 transitions. Word has length 98 [2023-11-29 06:20:15,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:15,335 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 1747 transitions. [2023-11-29 06:20:15,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.090909090909092) internal successors, (122), 12 states have internal predecessors, (122), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-29 06:20:15,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1747 transitions. [2023-11-29 06:20:15,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 06:20:15,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:15,336 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:20:15,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 06:20:15,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-29 06:20:15,537 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:20:15,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:15,537 INFO L85 PathProgramCache]: Analyzing trace with hash -712068644, now seen corresponding path program 1 times [2023-11-29 06:20:15,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:15,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257543163] [2023-11-29 06:20:15,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:15,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:15,546 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:15,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [378988048] [2023-11-29 06:20:15,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:15,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:15,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:15,547 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:15,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 06:20:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:15,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:20:15,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:15,816 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:20:15,817 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:15,950 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:20:15,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:15,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257543163] [2023-11-29 06:20:15,950 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:15,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378988048] [2023-11-29 06:20:15,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378988048] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:20:15,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:20:15,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 06:20:15,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686218052] [2023-11-29 06:20:15,951 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:15,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:20:15,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:15,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:20:15,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:20:15,952 INFO L87 Difference]: Start difference. First operand 1264 states and 1747 transitions. Second operand has 6 states, 5 states have (on average 24.6) internal successors, (123), 6 states have internal predecessors, (123), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:20:17,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:17,683 INFO L93 Difference]: Finished difference Result 1856 states and 2477 transitions. [2023-11-29 06:20:17,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:20:17,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.6) internal successors, (123), 6 states have internal predecessors, (123), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 99 [2023-11-29 06:20:17,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:17,688 INFO L225 Difference]: With dead ends: 1856 [2023-11-29 06:20:17,688 INFO L226 Difference]: Without dead ends: 1854 [2023-11-29 06:20:17,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:20:17,689 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 343 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:17,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 312 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 06:20:17,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2023-11-29 06:20:17,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 1464. [2023-11-29 06:20:17,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1285 states have (on average 1.3898832684824902) internal successors, (1786), 1329 states have internal predecessors, (1786), 135 states have call successors, (135), 5 states have call predecessors, (135), 5 states have return successors, (135), 129 states have call predecessors, (135), 135 states have call successors, (135) [2023-11-29 06:20:17,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 2056 transitions. [2023-11-29 06:20:17,847 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 2056 transitions. Word has length 99 [2023-11-29 06:20:17,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:17,847 INFO L495 AbstractCegarLoop]: Abstraction has 1464 states and 2056 transitions. [2023-11-29 06:20:17,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.6) internal successors, (123), 6 states have internal predecessors, (123), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:20:17,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 2056 transitions. [2023-11-29 06:20:17,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 06:20:17,848 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:17,848 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:20:17,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2023-11-29 06:20:18,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-29 06:20:18,049 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:20:18,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:18,049 INFO L85 PathProgramCache]: Analyzing trace with hash -2105962864, now seen corresponding path program 1 times [2023-11-29 06:20:18,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:18,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493378642] [2023-11-29 06:20:18,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:18,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:18,055 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:18,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1937154038] [2023-11-29 06:20:18,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:18,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:18,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:18,056 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:18,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 06:20:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:18,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:20:18,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:18,277 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:20:18,277 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:18,369 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:20:18,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:18,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493378642] [2023-11-29 06:20:18,369 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:18,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937154038] [2023-11-29 06:20:18,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937154038] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:20:18,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:20:18,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 06:20:18,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205231224] [2023-11-29 06:20:18,370 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:18,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:20:18,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:18,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:20:18,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:20:18,371 INFO L87 Difference]: Start difference. First operand 1464 states and 2056 transitions. Second operand has 6 states, 5 states have (on average 25.4) internal successors, (127), 6 states have internal predecessors, (127), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:20:20,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:20,249 INFO L93 Difference]: Finished difference Result 1981 states and 2682 transitions. [2023-11-29 06:20:20,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:20:20,250 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 25.4) internal successors, (127), 6 states have internal predecessors, (127), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 101 [2023-11-29 06:20:20,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:20,253 INFO L225 Difference]: With dead ends: 1981 [2023-11-29 06:20:20,254 INFO L226 Difference]: Without dead ends: 1979 [2023-11-29 06:20:20,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:20:20,254 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 349 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:20,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 335 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 06:20:20,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2023-11-29 06:20:20,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1680. [2023-11-29 06:20:20,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1680 states, 1480 states have (on average 1.3925675675675675) internal successors, (2061), 1524 states have internal predecessors, (2061), 156 states have call successors, (156), 5 states have call predecessors, (156), 5 states have return successors, (156), 150 states have call predecessors, (156), 156 states have call successors, (156) [2023-11-29 06:20:20,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2373 transitions. [2023-11-29 06:20:20,463 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2373 transitions. Word has length 101 [2023-11-29 06:20:20,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:20,463 INFO L495 AbstractCegarLoop]: Abstraction has 1680 states and 2373 transitions. [2023-11-29 06:20:20,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 25.4) internal successors, (127), 6 states have internal predecessors, (127), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:20:20,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2373 transitions. [2023-11-29 06:20:20,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 06:20:20,464 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:20,464 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:20:20,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 06:20:20,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-29 06:20:20,665 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:20:20,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:20,665 INFO L85 PathProgramCache]: Analyzing trace with hash -259811330, now seen corresponding path program 1 times [2023-11-29 06:20:20,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:20,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182387892] [2023-11-29 06:20:20,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:20,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:20,674 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:20,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1490187126] [2023-11-29 06:20:20,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:20,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:20,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:20,675 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:20,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 06:20:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:20,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:20:20,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:21,236 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:20:21,236 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:21,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:21,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182387892] [2023-11-29 06:20:21,383 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:21,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490187126] [2023-11-29 06:20:21,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490187126] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:20:21,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:20:21,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 06:20:21,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078223258] [2023-11-29 06:20:21,383 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:21,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:20:21,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:21,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:20:21,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:20:21,385 INFO L87 Difference]: Start difference. First operand 1680 states and 2373 transitions. Second operand has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:20:23,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:23,061 INFO L93 Difference]: Finished difference Result 1818 states and 2497 transitions. [2023-11-29 06:20:23,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:20:23,062 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 107 [2023-11-29 06:20:23,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:23,065 INFO L225 Difference]: With dead ends: 1818 [2023-11-29 06:20:23,065 INFO L226 Difference]: Without dead ends: 1814 [2023-11-29 06:20:23,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:20:23,066 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 300 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:23,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 275 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 06:20:23,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2023-11-29 06:20:23,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1676. [2023-11-29 06:20:23,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1676 states, 1480 states have (on average 1.3493243243243243) internal successors, (1997), 1520 states have internal predecessors, (1997), 156 states have call successors, (156), 5 states have call predecessors, (156), 5 states have return successors, (156), 150 states have call predecessors, (156), 156 states have call successors, (156) [2023-11-29 06:20:23,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 2309 transitions. [2023-11-29 06:20:23,263 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 2309 transitions. Word has length 107 [2023-11-29 06:20:23,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:23,263 INFO L495 AbstractCegarLoop]: Abstraction has 1676 states and 2309 transitions. [2023-11-29 06:20:23,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:20:23,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 2309 transitions. [2023-11-29 06:20:23,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 06:20:23,264 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:23,265 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:20:23,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 06:20:23,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 06:20:23,465 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:20:23,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:23,466 INFO L85 PathProgramCache]: Analyzing trace with hash 883635391, now seen corresponding path program 1 times [2023-11-29 06:20:23,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:23,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273444979] [2023-11-29 06:20:23,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:23,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:23,473 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:23,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [420966424] [2023-11-29 06:20:23,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:23,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:23,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:23,475 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:23,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 06:20:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:23,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:20:23,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:23,691 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:20:23,691 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:23,849 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:20:23,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:23,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273444979] [2023-11-29 06:20:23,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:23,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420966424] [2023-11-29 06:20:23,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420966424] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:20:23,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:20:23,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-11-29 06:20:23,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553017594] [2023-11-29 06:20:23,850 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:23,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:20:23,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:23,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:20:23,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:20:23,851 INFO L87 Difference]: Start difference. First operand 1676 states and 2309 transitions. Second operand has 14 states, 14 states have (on average 10.571428571428571) internal successors, (148), 14 states have internal predecessors, (148), 6 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-29 06:20:24,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:24,340 INFO L93 Difference]: Finished difference Result 2811 states and 3793 transitions. [2023-11-29 06:20:24,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 06:20:24,341 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.571428571428571) internal successors, (148), 14 states have internal predecessors, (148), 6 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 107 [2023-11-29 06:20:24,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:24,345 INFO L225 Difference]: With dead ends: 2811 [2023-11-29 06:20:24,345 INFO L226 Difference]: Without dead ends: 2572 [2023-11-29 06:20:24,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=209, Invalid=391, Unknown=0, NotChecked=0, Total=600 [2023-11-29 06:20:24,347 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 430 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:24,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 797 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:20:24,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2572 states. [2023-11-29 06:20:24,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2572 to 2423. [2023-11-29 06:20:24,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2423 states, 2169 states have (on average 1.322268326417704) internal successors, (2868), 2210 states have internal predecessors, (2868), 212 states have call successors, (212), 7 states have call predecessors, (212), 7 states have return successors, (212), 205 states have call predecessors, (212), 212 states have call successors, (212) [2023-11-29 06:20:24,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 3292 transitions. [2023-11-29 06:20:24,603 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 3292 transitions. Word has length 107 [2023-11-29 06:20:24,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:24,603 INFO L495 AbstractCegarLoop]: Abstraction has 2423 states and 3292 transitions. [2023-11-29 06:20:24,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.571428571428571) internal successors, (148), 14 states have internal predecessors, (148), 6 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-29 06:20:24,604 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 3292 transitions. [2023-11-29 06:20:24,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 06:20:24,604 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:24,605 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:20:24,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-11-29 06:20:24,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 06:20:24,805 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:20:24,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:24,805 INFO L85 PathProgramCache]: Analyzing trace with hash 535783415, now seen corresponding path program 1 times [2023-11-29 06:20:24,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:24,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300721454] [2023-11-29 06:20:24,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:24,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:24,812 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:24,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1139757226] [2023-11-29 06:20:24,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:24,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:24,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:24,813 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:24,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 06:20:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:24,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:20:24,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:25,225 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:20:25,225 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:25,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:25,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300721454] [2023-11-29 06:20:25,290 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:25,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139757226] [2023-11-29 06:20:25,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139757226] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:20:25,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:20:25,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 06:20:25,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459008940] [2023-11-29 06:20:25,291 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:25,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:20:25,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:25,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:20:25,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:20:25,292 INFO L87 Difference]: Start difference. First operand 2423 states and 3292 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:20:26,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:26,112 INFO L93 Difference]: Finished difference Result 2460 states and 3319 transitions. [2023-11-29 06:20:26,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:20:26,112 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 108 [2023-11-29 06:20:26,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:26,116 INFO L225 Difference]: With dead ends: 2460 [2023-11-29 06:20:26,116 INFO L226 Difference]: Without dead ends: 2458 [2023-11-29 06:20:26,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:20:26,116 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 147 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:26,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 214 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:20:26,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2458 states. [2023-11-29 06:20:26,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2458 to 2430. [2023-11-29 06:20:26,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2430 states, 2175 states have (on average 1.3218390804597702) internal successors, (2875), 2216 states have internal predecessors, (2875), 213 states have call successors, (213), 7 states have call predecessors, (213), 7 states have return successors, (213), 206 states have call predecessors, (213), 213 states have call successors, (213) [2023-11-29 06:20:26,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2430 states to 2430 states and 3301 transitions. [2023-11-29 06:20:26,377 INFO L78 Accepts]: Start accepts. Automaton has 2430 states and 3301 transitions. Word has length 108 [2023-11-29 06:20:26,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:26,377 INFO L495 AbstractCegarLoop]: Abstraction has 2430 states and 3301 transitions. [2023-11-29 06:20:26,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:20:26,377 INFO L276 IsEmpty]: Start isEmpty. Operand 2430 states and 3301 transitions. [2023-11-29 06:20:26,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 06:20:26,378 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:26,378 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:20:26,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2023-11-29 06:20:26,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 06:20:26,578 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:20:26,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:26,579 INFO L85 PathProgramCache]: Analyzing trace with hash 113803731, now seen corresponding path program 2 times [2023-11-29 06:20:26,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:26,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824200247] [2023-11-29 06:20:26,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:26,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:26,584 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:26,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1142129749] [2023-11-29 06:20:26,585 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:20:26,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:26,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:26,586 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:26,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 06:20:26,640 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:20:26,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:20:26,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:20:26,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:27,019 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:20:27,019 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:27,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:27,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824200247] [2023-11-29 06:20:27,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:27,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142129749] [2023-11-29 06:20:27,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142129749] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:20:27,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:20:27,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 06:20:27,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147948854] [2023-11-29 06:20:27,115 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:27,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:20:27,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:27,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:20:27,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:20:27,116 INFO L87 Difference]: Start difference. First operand 2430 states and 3301 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:20:27,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:27,982 INFO L93 Difference]: Finished difference Result 2472 states and 3320 transitions. [2023-11-29 06:20:27,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:20:27,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 108 [2023-11-29 06:20:27,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:27,986 INFO L225 Difference]: With dead ends: 2472 [2023-11-29 06:20:27,986 INFO L226 Difference]: Without dead ends: 2470 [2023-11-29 06:20:27,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:20:27,987 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 153 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:27,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 258 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:20:27,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2470 states. [2023-11-29 06:20:28,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2470 to 2427. [2023-11-29 06:20:28,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2427 states, 2173 states have (on average 1.32121491026231) internal successors, (2871), 2213 states have internal predecessors, (2871), 212 states have call successors, (212), 7 states have call predecessors, (212), 7 states have return successors, (212), 206 states have call predecessors, (212), 212 states have call successors, (212) [2023-11-29 06:20:28,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 3295 transitions. [2023-11-29 06:20:28,277 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 3295 transitions. Word has length 108 [2023-11-29 06:20:28,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:28,277 INFO L495 AbstractCegarLoop]: Abstraction has 2427 states and 3295 transitions. [2023-11-29 06:20:28,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:20:28,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 3295 transitions. [2023-11-29 06:20:28,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 06:20:28,279 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:28,279 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 06:20:28,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 06:20:28,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:28,480 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:20:28,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:28,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1188224766, now seen corresponding path program 1 times [2023-11-29 06:20:28,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:28,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088402623] [2023-11-29 06:20:28,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:28,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:28,490 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:28,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [889712602] [2023-11-29 06:20:28,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:28,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:28,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:28,492 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:28,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 06:20:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:28,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:20:28,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:28,881 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-29 06:20:28,881 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:20:28,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:28,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088402623] [2023-11-29 06:20:28,882 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:28,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889712602] [2023-11-29 06:20:28,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889712602] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:20:28,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:20:28,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:20:28,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889032413] [2023-11-29 06:20:28,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:20:28,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:20:28,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:28,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:20:28,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:20:28,884 INFO L87 Difference]: Start difference. First operand 2427 states and 3295 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 06:20:29,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:29,727 INFO L93 Difference]: Finished difference Result 2502 states and 3371 transitions. [2023-11-29 06:20:29,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:20:29,727 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 110 [2023-11-29 06:20:29,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:29,733 INFO L225 Difference]: With dead ends: 2502 [2023-11-29 06:20:29,733 INFO L226 Difference]: Without dead ends: 2499 [2023-11-29 06:20:29,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:20:29,734 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 128 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:29,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 129 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:20:29,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2499 states. [2023-11-29 06:20:30,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2499 to 2419. [2023-11-29 06:20:30,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2419 states, 2168 states have (on average 1.3035055350553506) internal successors, (2826), 2207 states have internal predecessors, (2826), 210 states have call successors, (210), 7 states have call predecessors, (210), 7 states have return successors, (210), 204 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 06:20:30,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2419 states to 2419 states and 3246 transitions. [2023-11-29 06:20:30,027 INFO L78 Accepts]: Start accepts. Automaton has 2419 states and 3246 transitions. Word has length 110 [2023-11-29 06:20:30,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:30,027 INFO L495 AbstractCegarLoop]: Abstraction has 2419 states and 3246 transitions. [2023-11-29 06:20:30,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 06:20:30,027 INFO L276 IsEmpty]: Start isEmpty. Operand 2419 states and 3246 transitions. [2023-11-29 06:20:30,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 06:20:30,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:30,028 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:20:30,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 06:20:30,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:30,229 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:20:30,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:30,229 INFO L85 PathProgramCache]: Analyzing trace with hash -508211943, now seen corresponding path program 1 times [2023-11-29 06:20:30,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:30,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096840563] [2023-11-29 06:20:30,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:30,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:30,237 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:30,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [977973063] [2023-11-29 06:20:30,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:30,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:30,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:30,239 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:30,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 06:20:30,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:30,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:20:30,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:30,745 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:20:30,745 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:30,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:30,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096840563] [2023-11-29 06:20:30,998 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:30,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977973063] [2023-11-29 06:20:30,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977973063] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:20:30,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:20:30,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 06:20:30,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6638596] [2023-11-29 06:20:30,999 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:31,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:20:31,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:31,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:20:31,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:20:31,001 INFO L87 Difference]: Start difference. First operand 2419 states and 3246 transitions. Second operand has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:20:32,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:32,262 INFO L93 Difference]: Finished difference Result 2451 states and 3269 transitions. [2023-11-29 06:20:32,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:20:32,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 110 [2023-11-29 06:20:32,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:32,270 INFO L225 Difference]: With dead ends: 2451 [2023-11-29 06:20:32,270 INFO L226 Difference]: Without dead ends: 2449 [2023-11-29 06:20:32,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:20:32,272 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 84 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:32,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 274 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 06:20:32,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2449 states. [2023-11-29 06:20:32,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2449 to 2422. [2023-11-29 06:20:32,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2422 states, 2170 states have (on average 1.3027649769585254) internal successors, (2827), 2209 states have internal predecessors, (2827), 211 states have call successors, (211), 7 states have call predecessors, (211), 7 states have return successors, (211), 205 states have call predecessors, (211), 211 states have call successors, (211) [2023-11-29 06:20:32,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2422 states to 2422 states and 3249 transitions. [2023-11-29 06:20:32,661 INFO L78 Accepts]: Start accepts. Automaton has 2422 states and 3249 transitions. Word has length 110 [2023-11-29 06:20:32,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:32,662 INFO L495 AbstractCegarLoop]: Abstraction has 2422 states and 3249 transitions. [2023-11-29 06:20:32,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:20:32,662 INFO L276 IsEmpty]: Start isEmpty. Operand 2422 states and 3249 transitions. [2023-11-29 06:20:32,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 06:20:32,662 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:32,663 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:20:32,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 06:20:32,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2023-11-29 06:20:32,863 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:20:32,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:32,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1991204853, now seen corresponding path program 2 times [2023-11-29 06:20:32,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:32,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772973865] [2023-11-29 06:20:32,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:32,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:32,871 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:32,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1638401288] [2023-11-29 06:20:32,871 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:20:32,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:32,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:32,872 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:32,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 06:20:32,941 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:20:32,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:20:32,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:20:32,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:33,423 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:20:33,423 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:33,839 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:20:33,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:33,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772973865] [2023-11-29 06:20:33,839 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:33,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638401288] [2023-11-29 06:20:33,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638401288] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:20:33,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:20:33,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2023-11-29 06:20:33,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984589217] [2023-11-29 06:20:33,840 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:33,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:20:33,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:33,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:20:33,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:20:33,842 INFO L87 Difference]: Start difference. First operand 2422 states and 3249 transitions. Second operand has 9 states, 8 states have (on average 18.125) internal successors, (145), 9 states have internal predecessors, (145), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:20:37,550 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 [] [2023-11-29 06:20:39,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:39,878 INFO L93 Difference]: Finished difference Result 2461 states and 3274 transitions. [2023-11-29 06:20:39,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:20:39,878 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 18.125) internal successors, (145), 9 states have internal predecessors, (145), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 110 [2023-11-29 06:20:39,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:39,883 INFO L225 Difference]: With dead ends: 2461 [2023-11-29 06:20:39,884 INFO L226 Difference]: Without dead ends: 2459 [2023-11-29 06:20:39,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:20:39,885 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 270 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:39,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 413 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-11-29 06:20:39,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2459 states. [2023-11-29 06:20:40,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2459 to 2423. [2023-11-29 06:20:40,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2423 states, 2171 states have (on average 1.3012436665131275) internal successors, (2825), 2210 states have internal predecessors, (2825), 211 states have call successors, (211), 7 states have call predecessors, (211), 7 states have return successors, (211), 205 states have call predecessors, (211), 211 states have call successors, (211) [2023-11-29 06:20:40,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 3247 transitions. [2023-11-29 06:20:40,222 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 3247 transitions. Word has length 110 [2023-11-29 06:20:40,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:40,222 INFO L495 AbstractCegarLoop]: Abstraction has 2423 states and 3247 transitions. [2023-11-29 06:20:40,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 18.125) internal successors, (145), 9 states have internal predecessors, (145), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:20:40,223 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 3247 transitions. [2023-11-29 06:20:40,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-29 06:20:40,224 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:40,224 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:20:40,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-29 06:20:40,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2023-11-29 06:20:40,424 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:20:40,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:40,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1425299010, now seen corresponding path program 1 times [2023-11-29 06:20:40,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:40,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953857778] [2023-11-29 06:20:40,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:40,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:40,430 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:40,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305222261] [2023-11-29 06:20:40,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:40,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:40,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:40,431 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:40,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 06:20:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:40,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:20:40,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:40,914 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:20:40,914 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:42,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:42,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953857778] [2023-11-29 06:20:42,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:42,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305222261] [2023-11-29 06:20:42,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305222261] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:20:42,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:20:42,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:20:42,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280219769] [2023-11-29 06:20:42,087 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:42,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:20:42,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:42,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:20:42,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:20:42,088 INFO L87 Difference]: Start difference. First operand 2423 states and 3247 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:20:44,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:44,208 INFO L93 Difference]: Finished difference Result 2523 states and 3338 transitions. [2023-11-29 06:20:44,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:20:44,209 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 111 [2023-11-29 06:20:44,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:44,214 INFO L225 Difference]: With dead ends: 2523 [2023-11-29 06:20:44,214 INFO L226 Difference]: Without dead ends: 2519 [2023-11-29 06:20:44,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:20:44,216 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 306 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:44,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 287 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 06:20:44,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2023-11-29 06:20:44,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2438. [2023-11-29 06:20:44,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2438 states, 2182 states have (on average 1.2923923006416131) internal successors, (2820), 2223 states have internal predecessors, (2820), 215 states have call successors, (215), 7 states have call predecessors, (215), 7 states have return successors, (215), 207 states have call predecessors, (215), 215 states have call successors, (215) [2023-11-29 06:20:44,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2438 states to 2438 states and 3250 transitions. [2023-11-29 06:20:44,510 INFO L78 Accepts]: Start accepts. Automaton has 2438 states and 3250 transitions. Word has length 111 [2023-11-29 06:20:44,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:44,510 INFO L495 AbstractCegarLoop]: Abstraction has 2438 states and 3250 transitions. [2023-11-29 06:20:44,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:20:44,511 INFO L276 IsEmpty]: Start isEmpty. Operand 2438 states and 3250 transitions. [2023-11-29 06:20:44,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-29 06:20:44,511 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:44,511 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:20:44,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-29 06:20:44,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2023-11-29 06:20:44,712 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:20:44,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:44,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1597808358, now seen corresponding path program 2 times [2023-11-29 06:20:44,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:44,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44966855] [2023-11-29 06:20:44,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:44,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:44,717 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:44,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1288166150] [2023-11-29 06:20:44,718 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:20:44,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:44,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:44,719 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:44,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 06:20:44,788 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:20:44,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:20:44,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:20:44,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:45,206 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:20:45,207 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:45,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:45,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44966855] [2023-11-29 06:20:45,478 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:45,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288166150] [2023-11-29 06:20:45,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288166150] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:20:45,478 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:20:45,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:20:45,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084599157] [2023-11-29 06:20:45,478 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:45,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:20:45,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:45,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:20:45,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:20:45,479 INFO L87 Difference]: Start difference. First operand 2438 states and 3250 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:20:47,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:47,191 INFO L93 Difference]: Finished difference Result 2531 states and 3329 transitions. [2023-11-29 06:20:47,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:20:47,192 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 111 [2023-11-29 06:20:47,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:47,194 INFO L225 Difference]: With dead ends: 2531 [2023-11-29 06:20:47,195 INFO L226 Difference]: Without dead ends: 2527 [2023-11-29 06:20:47,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:20:47,195 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 404 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:47,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 197 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 06:20:47,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2527 states. [2023-11-29 06:20:47,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2527 to 2422. [2023-11-29 06:20:47,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2422 states, 2171 states have (on average 1.2795946568401657) internal successors, (2778), 2209 states have internal predecessors, (2778), 211 states have call successors, (211), 7 states have call predecessors, (211), 7 states have return successors, (211), 205 states have call predecessors, (211), 211 states have call successors, (211) [2023-11-29 06:20:47,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2422 states to 2422 states and 3200 transitions. [2023-11-29 06:20:47,528 INFO L78 Accepts]: Start accepts. Automaton has 2422 states and 3200 transitions. Word has length 111 [2023-11-29 06:20:47,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:47,528 INFO L495 AbstractCegarLoop]: Abstraction has 2422 states and 3200 transitions. [2023-11-29 06:20:47,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:20:47,528 INFO L276 IsEmpty]: Start isEmpty. Operand 2422 states and 3200 transitions. [2023-11-29 06:20:47,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 06:20:47,529 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:47,529 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:20:47,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2023-11-29 06:20:47,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2023-11-29 06:20:47,730 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:20:47,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:47,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1234596411, now seen corresponding path program 1 times [2023-11-29 06:20:47,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:47,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096312005] [2023-11-29 06:20:47,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:47,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:47,739 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:47,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2095153875] [2023-11-29 06:20:47,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:47,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:47,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:47,740 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:47,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 06:20:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:47,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:20:47,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:48,574 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:20:48,574 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:49,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:49,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096312005] [2023-11-29 06:20:49,038 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:49,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095153875] [2023-11-29 06:20:49,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095153875] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:20:49,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:20:49,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:20:49,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574039929] [2023-11-29 06:20:49,039 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:49,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:20:49,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:49,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:20:49,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:20:49,040 INFO L87 Difference]: Start difference. First operand 2422 states and 3200 transitions. Second operand has 7 states, 6 states have (on average 13.0) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:20:50,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:50,515 INFO L93 Difference]: Finished difference Result 2527 states and 3297 transitions. [2023-11-29 06:20:50,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:20:50,516 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 112 [2023-11-29 06:20:50,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:50,519 INFO L225 Difference]: With dead ends: 2527 [2023-11-29 06:20:50,519 INFO L226 Difference]: Without dead ends: 2508 [2023-11-29 06:20:50,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:20:50,520 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 405 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:50,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 238 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:20:50,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2508 states. [2023-11-29 06:20:50,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2508 to 2384. [2023-11-29 06:20:50,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2384 states, 2133 states have (on average 1.2719174871073606) internal successors, (2713), 2178 states have internal predecessors, (2713), 211 states have call successors, (211), 7 states have call predecessors, (211), 7 states have return successors, (211), 198 states have call predecessors, (211), 211 states have call successors, (211) [2023-11-29 06:20:50,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2384 states to 2384 states and 3135 transitions. [2023-11-29 06:20:50,824 INFO L78 Accepts]: Start accepts. Automaton has 2384 states and 3135 transitions. Word has length 112 [2023-11-29 06:20:50,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:50,824 INFO L495 AbstractCegarLoop]: Abstraction has 2384 states and 3135 transitions. [2023-11-29 06:20:50,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:20:50,824 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states and 3135 transitions. [2023-11-29 06:20:50,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 06:20:50,825 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:50,825 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:20:50,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2023-11-29 06:20:51,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:51,026 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:20:51,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:51,026 INFO L85 PathProgramCache]: Analyzing trace with hash -2007548393, now seen corresponding path program 2 times [2023-11-29 06:20:51,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:51,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95644138] [2023-11-29 06:20:51,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:51,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:51,034 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:51,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1045566105] [2023-11-29 06:20:51,034 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:20:51,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:51,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:51,036 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:51,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 06:20:51,099 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:20:51,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:20:51,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:20:51,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:51,971 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:20:51,971 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:56,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:56,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95644138] [2023-11-29 06:20:56,351 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:56,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045566105] [2023-11-29 06:20:56,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045566105] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:20:56,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:20:56,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:20:56,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715248737] [2023-11-29 06:20:56,352 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:56,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:20:56,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:56,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:20:56,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=59, Unknown=1, NotChecked=0, Total=90 [2023-11-29 06:20:56,353 INFO L87 Difference]: Start difference. First operand 2384 states and 3135 transitions. Second operand has 7 states, 6 states have (on average 13.0) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:20:57,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:57,913 INFO L93 Difference]: Finished difference Result 2452 states and 3188 transitions. [2023-11-29 06:20:57,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:20:57,913 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 112 [2023-11-29 06:20:57,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:57,916 INFO L225 Difference]: With dead ends: 2452 [2023-11-29 06:20:57,916 INFO L226 Difference]: Without dead ends: 2421 [2023-11-29 06:20:57,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=52, Invalid=103, Unknown=1, NotChecked=0, Total=156 [2023-11-29 06:20:57,916 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 288 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:57,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 341 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 06:20:57,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2023-11-29 06:20:58,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 2327. [2023-11-29 06:20:58,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2083 states have (on average 1.2602016322611618) internal successors, (2625), 2131 states have internal predecessors, (2625), 207 states have call successors, (207), 7 states have call predecessors, (207), 7 states have return successors, (207), 188 states have call predecessors, (207), 207 states have call successors, (207) [2023-11-29 06:20:58,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3039 transitions. [2023-11-29 06:20:58,179 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3039 transitions. Word has length 112 [2023-11-29 06:20:58,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:58,180 INFO L495 AbstractCegarLoop]: Abstraction has 2327 states and 3039 transitions. [2023-11-29 06:20:58,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:20:58,180 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3039 transitions. [2023-11-29 06:20:58,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-29 06:20:58,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:58,181 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:20:58,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2023-11-29 06:20:58,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:58,381 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:20:58,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:58,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1937164103, now seen corresponding path program 2 times [2023-11-29 06:20:58,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:58,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45683410] [2023-11-29 06:20:58,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:58,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:58,388 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:58,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1427830491] [2023-11-29 06:20:58,389 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:20:58,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:58,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:58,390 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:58,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 06:20:58,445 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:20:58,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:20:58,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:20:58,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:58,871 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 3 proven. 57 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-29 06:20:58,871 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:59,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:59,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45683410] [2023-11-29 06:20:59,102 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:59,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427830491] [2023-11-29 06:20:59,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427830491] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:20:59,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:20:59,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:20:59,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694010210] [2023-11-29 06:20:59,103 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:59,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:20:59,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:59,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:20:59,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:20:59,104 INFO L87 Difference]: Start difference. First operand 2327 states and 3039 transitions. Second operand has 9 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 06:21:00,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:21:00,623 INFO L93 Difference]: Finished difference Result 2603 states and 3359 transitions. [2023-11-29 06:21:00,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:21:00,623 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 118 [2023-11-29 06:21:00,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:21:00,627 INFO L225 Difference]: With dead ends: 2603 [2023-11-29 06:21:00,627 INFO L226 Difference]: Without dead ends: 2601 [2023-11-29 06:21:00,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:21:00,628 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 443 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:21:00,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 471 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:21:00,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2601 states. [2023-11-29 06:21:00,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2601 to 2347. [2023-11-29 06:21:00,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2347 states, 2102 states have (on average 1.2592768791627023) internal successors, (2647), 2148 states have internal predecessors, (2647), 208 states have call successors, (208), 7 states have call predecessors, (208), 7 states have return successors, (208), 191 states have call predecessors, (208), 208 states have call successors, (208) [2023-11-29 06:21:00,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2347 states to 2347 states and 3063 transitions. [2023-11-29 06:21:00,958 INFO L78 Accepts]: Start accepts. Automaton has 2347 states and 3063 transitions. Word has length 118 [2023-11-29 06:21:00,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:21:00,958 INFO L495 AbstractCegarLoop]: Abstraction has 2347 states and 3063 transitions. [2023-11-29 06:21:00,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 06:21:00,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2347 states and 3063 transitions. [2023-11-29 06:21:00,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 06:21:00,959 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:21:00,959 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 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 06:21:00,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2023-11-29 06:21:01,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-11-29 06:21:01,160 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:21:01,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:21:01,160 INFO L85 PathProgramCache]: Analyzing trace with hash 23152730, now seen corresponding path program 1 times [2023-11-29 06:21:01,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:21:01,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017586614] [2023-11-29 06:21:01,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:01,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:21:01,169 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:21:01,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1594743845] [2023-11-29 06:21:01,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:01,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:01,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:21:01,170 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:21:01,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 06:21:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:21:01,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:21:01,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:21:01,335 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 24 proven. 12 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-29 06:21:01,335 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:21:01,485 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 24 proven. 12 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-29 06:21:01,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:21:01,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017586614] [2023-11-29 06:21:01,485 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:21:01,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594743845] [2023-11-29 06:21:01,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594743845] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:21:01,486 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:21:01,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-11-29 06:21:01,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265112055] [2023-11-29 06:21:01,486 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:21:01,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:21:01,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:21:01,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:21:01,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:21:01,488 INFO L87 Difference]: Start difference. First operand 2347 states and 3063 transitions. Second operand has 7 states, 6 states have (on average 16.833333333333332) internal successors, (101), 7 states have internal predecessors, (101), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-29 06:21:02,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:21:02,286 INFO L93 Difference]: Finished difference Result 2355 states and 3065 transitions. [2023-11-29 06:21:02,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:21:02,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.833333333333332) internal successors, (101), 7 states have internal predecessors, (101), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 121 [2023-11-29 06:21:02,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:21:02,289 INFO L225 Difference]: With dead ends: 2355 [2023-11-29 06:21:02,289 INFO L226 Difference]: Without dead ends: 2285 [2023-11-29 06:21:02,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:21:02,291 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 97 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:21:02,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 113 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:21:02,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2285 states. [2023-11-29 06:21:02,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2285 to 2279. [2023-11-29 06:21:02,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 2044 states have (on average 1.2636986301369864) internal successors, (2583), 2086 states have internal predecessors, (2583), 198 states have call successors, (198), 7 states have call predecessors, (198), 7 states have return successors, (198), 185 states have call predecessors, (198), 198 states have call successors, (198) [2023-11-29 06:21:02,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 2979 transitions. [2023-11-29 06:21:02,605 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 2979 transitions. Word has length 121 [2023-11-29 06:21:02,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:21:02,605 INFO L495 AbstractCegarLoop]: Abstraction has 2279 states and 2979 transitions. [2023-11-29 06:21:02,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.833333333333332) internal successors, (101), 7 states have internal predecessors, (101), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-29 06:21:02,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 2979 transitions. [2023-11-29 06:21:02,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 06:21:02,606 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:21:02,606 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:21:02,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2023-11-29 06:21:02,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-11-29 06:21:02,806 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:21:02,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:21:02,807 INFO L85 PathProgramCache]: Analyzing trace with hash 137011819, now seen corresponding path program 1 times [2023-11-29 06:21:02,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:21:02,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804261549] [2023-11-29 06:21:02,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:02,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:21:02,814 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:21:02,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1188250686] [2023-11-29 06:21:02,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:02,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:02,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:21:02,815 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:21:02,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 06:21:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:21:02,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:21:02,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:21:03,583 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-29 06:21:03,583 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:21:03,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:21:03,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804261549] [2023-11-29 06:21:03,867 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:21:03,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188250686] [2023-11-29 06:21:03,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188250686] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:21:03,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:21:03,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:21:03,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639555202] [2023-11-29 06:21:03,867 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:21:03,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:21:03,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:21:03,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:21:03,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:21:03,868 INFO L87 Difference]: Start difference. First operand 2279 states and 2979 transitions. Second operand has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 10 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 06:21:05,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:21:05,397 INFO L93 Difference]: Finished difference Result 2399 states and 3114 transitions. [2023-11-29 06:21:05,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:21:05,398 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 10 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 121 [2023-11-29 06:21:05,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:21:05,400 INFO L225 Difference]: With dead ends: 2399 [2023-11-29 06:21:05,401 INFO L226 Difference]: Without dead ends: 2397 [2023-11-29 06:21:05,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:21:05,401 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 206 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:21:05,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 477 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 06:21:05,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2397 states. [2023-11-29 06:21:05,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2397 to 2319. [2023-11-29 06:21:05,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2319 states, 2082 states have (on average 1.2646493756003843) internal successors, (2633), 2123 states have internal predecessors, (2633), 200 states have call successors, (200), 7 states have call predecessors, (200), 7 states have return successors, (200), 188 states have call predecessors, (200), 200 states have call successors, (200) [2023-11-29 06:21:05,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2319 states to 2319 states and 3033 transitions. [2023-11-29 06:21:05,764 INFO L78 Accepts]: Start accepts. Automaton has 2319 states and 3033 transitions. Word has length 121 [2023-11-29 06:21:05,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:21:05,765 INFO L495 AbstractCegarLoop]: Abstraction has 2319 states and 3033 transitions. [2023-11-29 06:21:05,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 10 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 06:21:05,765 INFO L276 IsEmpty]: Start isEmpty. Operand 2319 states and 3033 transitions. [2023-11-29 06:21:05,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 06:21:05,766 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:21:05,766 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2023-11-29 06:21:05,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2023-11-29 06:21:05,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:05,967 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:21:05,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:21:05,967 INFO L85 PathProgramCache]: Analyzing trace with hash -47600835, now seen corresponding path program 1 times [2023-11-29 06:21:05,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:21:05,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363789949] [2023-11-29 06:21:05,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:05,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:21:05,974 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:21:05,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1841566152] [2023-11-29 06:21:05,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:05,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:05,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:21:05,976 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:21:05,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 06:21:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:21:06,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:21:06,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:21:06,654 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 26 proven. 33 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-29 06:21:06,654 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:21:06,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:21:06,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363789949] [2023-11-29 06:21:06,725 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:21:06,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841566152] [2023-11-29 06:21:06,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841566152] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:21:06,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:21:06,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:21:06,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330632381] [2023-11-29 06:21:06,726 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:21:06,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:21:06,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:21:06,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:21:06,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:21:06,727 INFO L87 Difference]: Start difference. First operand 2319 states and 3033 transitions. Second operand has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 06:21:08,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:21:08,388 INFO L93 Difference]: Finished difference Result 2472 states and 3178 transitions. [2023-11-29 06:21:08,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 06:21:08,389 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 122 [2023-11-29 06:21:08,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:21:08,391 INFO L225 Difference]: With dead ends: 2472 [2023-11-29 06:21:08,391 INFO L226 Difference]: Without dead ends: 2453 [2023-11-29 06:21:08,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=179, Invalid=421, Unknown=0, NotChecked=0, Total=600 [2023-11-29 06:21:08,392 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 463 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:21:08,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 580 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:21:08,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2453 states. [2023-11-29 06:21:08,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2453 to 2263. [2023-11-29 06:21:08,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2263 states, 2033 states have (on average 1.251352680767339) internal successors, (2544), 2071 states have internal predecessors, (2544), 193 states have call successors, (193), 7 states have call predecessors, (193), 7 states have return successors, (193), 184 states have call predecessors, (193), 193 states have call successors, (193) [2023-11-29 06:21:08,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2263 states to 2263 states and 2930 transitions. [2023-11-29 06:21:08,658 INFO L78 Accepts]: Start accepts. Automaton has 2263 states and 2930 transitions. Word has length 122 [2023-11-29 06:21:08,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:21:08,658 INFO L495 AbstractCegarLoop]: Abstraction has 2263 states and 2930 transitions. [2023-11-29 06:21:08,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 06:21:08,659 INFO L276 IsEmpty]: Start isEmpty. Operand 2263 states and 2930 transitions. [2023-11-29 06:21:08,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 06:21:08,659 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:21:08,659 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2023-11-29 06:21:08,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2023-11-29 06:21:08,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2023-11-29 06:21:08,860 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:21:08,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:21:08,860 INFO L85 PathProgramCache]: Analyzing trace with hash 439505945, now seen corresponding path program 2 times [2023-11-29 06:21:08,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:21:08,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831329007] [2023-11-29 06:21:08,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:08,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:21:08,868 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:21:08,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1192520728] [2023-11-29 06:21:08,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:21:08,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:08,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:21:08,869 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:21:08,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-29 06:21:08,930 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:21:08,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:21:08,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:21:08,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:21:08,996 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-11-29 06:21:08,996 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:21:08,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:21:08,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831329007] [2023-11-29 06:21:08,996 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:21:08,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192520728] [2023-11-29 06:21:08,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192520728] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:21:08,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:21:08,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:21:08,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49920832] [2023-11-29 06:21:08,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:21:08,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:21:08,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:21:08,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:21:08,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:21:08,998 INFO L87 Difference]: Start difference. First operand 2263 states and 2930 transitions. Second operand has 3 states, 2 states have (on average 34.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 06:21:09,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:21:09,624 INFO L93 Difference]: Finished difference Result 2272 states and 2930 transitions. [2023-11-29 06:21:09,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:21:09,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 34.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 122 [2023-11-29 06:21:09,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:21:09,627 INFO L225 Difference]: With dead ends: 2272 [2023-11-29 06:21:09,627 INFO L226 Difference]: Without dead ends: 2253 [2023-11-29 06:21:09,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 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 06:21:09,627 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 57 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:21:09,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 95 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:21:09,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2253 states. [2023-11-29 06:21:09,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2253 to 2237. [2023-11-29 06:21:09,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2237 states, 2013 states have (on average 1.2409339294585195) internal successors, (2498), 2047 states have internal predecessors, (2498), 188 states have call successors, (188), 7 states have call predecessors, (188), 7 states have return successors, (188), 182 states have call predecessors, (188), 188 states have call successors, (188) [2023-11-29 06:21:09,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2237 states to 2237 states and 2874 transitions. [2023-11-29 06:21:09,892 INFO L78 Accepts]: Start accepts. Automaton has 2237 states and 2874 transitions. Word has length 122 [2023-11-29 06:21:09,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:21:09,893 INFO L495 AbstractCegarLoop]: Abstraction has 2237 states and 2874 transitions. [2023-11-29 06:21:09,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 34.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 06:21:09,893 INFO L276 IsEmpty]: Start isEmpty. Operand 2237 states and 2874 transitions. [2023-11-29 06:21:09,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-29 06:21:09,893 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:21:09,894 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-29 06:21:09,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2023-11-29 06:21:10,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:10,094 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:21:10,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:21:10,094 INFO L85 PathProgramCache]: Analyzing trace with hash -979467738, now seen corresponding path program 2 times [2023-11-29 06:21:10,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:21:10,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660098402] [2023-11-29 06:21:10,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:10,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:21:10,101 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:21:10,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [859977903] [2023-11-29 06:21:10,101 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:21:10,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:10,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:21:10,102 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:21:10,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-29 06:21:10,157 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:21:10,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:21:10,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:21:10,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:21:12,070 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-11-29 06:21:12,070 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:21:12,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:21:12,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660098402] [2023-11-29 06:21:12,210 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:21:12,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859977903] [2023-11-29 06:21:12,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859977903] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:21:12,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:21:12,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:21:12,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806764019] [2023-11-29 06:21:12,211 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:21:12,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:21:12,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:21:12,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:21:12,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:21:12,212 INFO L87 Difference]: Start difference. First operand 2237 states and 2874 transitions. Second operand has 12 states, 10 states have (on average 9.1) internal successors, (91), 11 states have internal predecessors, (91), 6 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 6 states have call successors, (10) [2023-11-29 06:21:16,557 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 06:21:20,784 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 06:21:24,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:21:24,603 INFO L93 Difference]: Finished difference Result 2635 states and 3349 transitions. [2023-11-29 06:21:24,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:21:24,603 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 9.1) internal successors, (91), 11 states have internal predecessors, (91), 6 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 6 states have call successors, (10) Word has length 129 [2023-11-29 06:21:24,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:21:24,606 INFO L225 Difference]: With dead ends: 2635 [2023-11-29 06:21:24,606 INFO L226 Difference]: Without dead ends: 2633 [2023-11-29 06:21:24,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:21:24,607 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 359 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:21:24,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 602 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 745 Invalid, 2 Unknown, 0 Unchecked, 11.9s Time] [2023-11-29 06:21:24,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2023-11-29 06:21:24,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 2243. [2023-11-29 06:21:24,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2243 states, 2018 states have (on average 1.2393458870168483) internal successors, (2501), 2052 states have internal predecessors, (2501), 189 states have call successors, (189), 7 states have call predecessors, (189), 7 states have return successors, (189), 183 states have call predecessors, (189), 189 states have call successors, (189) [2023-11-29 06:21:24,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2243 states to 2243 states and 2879 transitions. [2023-11-29 06:21:24,914 INFO L78 Accepts]: Start accepts. Automaton has 2243 states and 2879 transitions. Word has length 129 [2023-11-29 06:21:24,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:21:24,914 INFO L495 AbstractCegarLoop]: Abstraction has 2243 states and 2879 transitions. [2023-11-29 06:21:24,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 9.1) internal successors, (91), 11 states have internal predecessors, (91), 6 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 6 states have call successors, (10) [2023-11-29 06:21:24,914 INFO L276 IsEmpty]: Start isEmpty. Operand 2243 states and 2879 transitions. [2023-11-29 06:21:24,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-29 06:21:24,915 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:21:24,916 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-29 06:21:24,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2023-11-29 06:21:25,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:25,116 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:21:25,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:21:25,116 INFO L85 PathProgramCache]: Analyzing trace with hash -968333735, now seen corresponding path program 1 times [2023-11-29 06:21:25,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:21:25,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996780091] [2023-11-29 06:21:25,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:25,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:21:25,123 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:21:25,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2117192484] [2023-11-29 06:21:25,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:25,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:25,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:21:25,125 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:21:25,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-29 06:21:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:21:25,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:21:25,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:21:25,894 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:21:25,894 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:21:26,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:21:26,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996780091] [2023-11-29 06:21:26,213 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:21:26,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117192484] [2023-11-29 06:21:26,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117192484] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:21:26,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:21:26,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:21:26,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980705974] [2023-11-29 06:21:26,214 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:21:26,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:21:26,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:21:26,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:21:26,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:21:26,215 INFO L87 Difference]: Start difference. First operand 2243 states and 2879 transitions. Second operand has 9 states, 8 states have (on average 11.0) internal successors, (88), 9 states have internal predecessors, (88), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:21:27,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:21:27,535 INFO L93 Difference]: Finished difference Result 2345 states and 2992 transitions. [2023-11-29 06:21:27,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:21:27,536 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 9 states have internal predecessors, (88), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 132 [2023-11-29 06:21:27,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:21:27,538 INFO L225 Difference]: With dead ends: 2345 [2023-11-29 06:21:27,538 INFO L226 Difference]: Without dead ends: 2344 [2023-11-29 06:21:27,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:21:27,539 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 156 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:21:27,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 488 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:21:27,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2344 states. [2023-11-29 06:21:27,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2344 to 2243. [2023-11-29 06:21:27,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2243 states, 2018 states have (on average 1.2388503468780971) internal successors, (2500), 2052 states have internal predecessors, (2500), 189 states have call successors, (189), 7 states have call predecessors, (189), 7 states have return successors, (189), 183 states have call predecessors, (189), 189 states have call successors, (189) [2023-11-29 06:21:27,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2243 states to 2243 states and 2878 transitions. [2023-11-29 06:21:27,839 INFO L78 Accepts]: Start accepts. Automaton has 2243 states and 2878 transitions. Word has length 132 [2023-11-29 06:21:27,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:21:27,839 INFO L495 AbstractCegarLoop]: Abstraction has 2243 states and 2878 transitions. [2023-11-29 06:21:27,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 9 states have internal predecessors, (88), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:21:27,839 INFO L276 IsEmpty]: Start isEmpty. Operand 2243 states and 2878 transitions. [2023-11-29 06:21:27,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-29 06:21:27,840 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:21:27,840 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 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] [2023-11-29 06:21:27,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2023-11-29 06:21:28,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:28,040 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:21:28,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:21:28,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1445776496, now seen corresponding path program 1 times [2023-11-29 06:21:28,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:21:28,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512481983] [2023-11-29 06:21:28,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:28,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:21:28,046 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:21:28,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [762296816] [2023-11-29 06:21:28,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:28,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:28,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:21:28,047 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:21:28,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-29 06:21:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:21:28,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:21:28,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:21:28,303 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:21:28,303 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:21:28,468 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:21:28,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:21:28,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512481983] [2023-11-29 06:21:28,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:21:28,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762296816] [2023-11-29 06:21:28,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762296816] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:21:28,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:21:28,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 06:21:28,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667369459] [2023-11-29 06:21:28,469 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:21:28,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:21:28,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:21:28,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:21:28,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:21:28,471 INFO L87 Difference]: Start difference. First operand 2243 states and 2878 transitions. Second operand has 12 states, 11 states have (on average 16.545454545454547) internal successors, (182), 12 states have internal predecessors, (182), 8 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-11-29 06:21:29,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:21:29,414 INFO L93 Difference]: Finished difference Result 3124 states and 4004 transitions. [2023-11-29 06:21:29,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:21:29,415 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 16.545454545454547) internal successors, (182), 12 states have internal predecessors, (182), 8 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 143 [2023-11-29 06:21:29,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:21:29,418 INFO L225 Difference]: With dead ends: 3124 [2023-11-29 06:21:29,418 INFO L226 Difference]: Without dead ends: 3122 [2023-11-29 06:21:29,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2023-11-29 06:21:29,419 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 900 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:21:29,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 900 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:21:29,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3122 states. [2023-11-29 06:21:29,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3122 to 2734. [2023-11-29 06:21:29,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2734 states, 2470 states have (on average 1.2396761133603238) internal successors, (3062), 2504 states have internal predecessors, (3062), 228 states have call successors, (228), 7 states have call predecessors, (228), 7 states have return successors, (228), 222 states have call predecessors, (228), 228 states have call successors, (228) [2023-11-29 06:21:29,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2734 states to 2734 states and 3518 transitions. [2023-11-29 06:21:29,789 INFO L78 Accepts]: Start accepts. Automaton has 2734 states and 3518 transitions. Word has length 143 [2023-11-29 06:21:29,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:21:29,789 INFO L495 AbstractCegarLoop]: Abstraction has 2734 states and 3518 transitions. [2023-11-29 06:21:29,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 16.545454545454547) internal successors, (182), 12 states have internal predecessors, (182), 8 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-11-29 06:21:29,789 INFO L276 IsEmpty]: Start isEmpty. Operand 2734 states and 3518 transitions. [2023-11-29 06:21:29,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 06:21:29,790 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:21:29,790 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 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] [2023-11-29 06:21:29,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2023-11-29 06:21:29,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:29,991 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:21:29,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:21:29,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1039381412, now seen corresponding path program 1 times [2023-11-29 06:21:29,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:21:29,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240753033] [2023-11-29 06:21:29,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:29,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:21:29,997 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:21:29,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1484218888] [2023-11-29 06:21:29,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:29,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:29,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:21:29,998 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:21:29,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2023-11-29 06:21:30,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:21:30,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:21:30,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:21:30,354 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:21:30,354 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:21:30,525 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:21:30,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:21:30,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240753033] [2023-11-29 06:21:30,525 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:21:30,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484218888] [2023-11-29 06:21:30,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484218888] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:21:30,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:21:30,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 06:21:30,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290116707] [2023-11-29 06:21:30,526 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:21:30,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:21:30,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:21:30,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:21:30,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:21:30,527 INFO L87 Difference]: Start difference. First operand 2734 states and 3518 transitions. Second operand has 8 states, 7 states have (on average 26.428571428571427) internal successors, (185), 8 states have internal predecessors, (185), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 06:21:31,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:21:31,995 INFO L93 Difference]: Finished difference Result 3455 states and 4363 transitions. [2023-11-29 06:21:31,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:21:31,996 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 26.428571428571427) internal successors, (185), 8 states have internal predecessors, (185), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 145 [2023-11-29 06:21:31,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:21:31,999 INFO L225 Difference]: With dead ends: 3455 [2023-11-29 06:21:31,999 INFO L226 Difference]: Without dead ends: 3453 [2023-11-29 06:21:32,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:21:32,000 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 489 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:21:32,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 591 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 06:21:32,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3453 states. [2023-11-29 06:21:32,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3453 to 3121. [2023-11-29 06:21:32,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 2824 states have (on average 1.2376062322946175) internal successors, (3495), 2858 states have internal predecessors, (3495), 261 states have call successors, (261), 7 states have call predecessors, (261), 7 states have return successors, (261), 255 states have call predecessors, (261), 261 states have call successors, (261) [2023-11-29 06:21:32,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 4017 transitions. [2023-11-29 06:21:32,415 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 4017 transitions. Word has length 145 [2023-11-29 06:21:32,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:21:32,415 INFO L495 AbstractCegarLoop]: Abstraction has 3121 states and 4017 transitions. [2023-11-29 06:21:32,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 26.428571428571427) internal successors, (185), 8 states have internal predecessors, (185), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 06:21:32,415 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 4017 transitions. [2023-11-29 06:21:32,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-29 06:21:32,416 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:21:32,416 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 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] [2023-11-29 06:21:32,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2023-11-29 06:21:32,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:32,617 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:21:32,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:21:32,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1076503194, now seen corresponding path program 1 times [2023-11-29 06:21:32,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:21:32,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156145205] [2023-11-29 06:21:32,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:32,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:21:32,628 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:21:32,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [283621911] [2023-11-29 06:21:32,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:32,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:32,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:21:32,630 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:21:32,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2023-11-29 06:21:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:21:32,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:21:32,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:21:32,958 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:21:32,959 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:21:33,115 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:21:33,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:21:33,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156145205] [2023-11-29 06:21:33,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:21:33,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283621911] [2023-11-29 06:21:33,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283621911] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:21:33,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:21:33,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 06:21:33,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537986839] [2023-11-29 06:21:33,116 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:21:33,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:21:33,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:21:33,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:21:33,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:21:33,117 INFO L87 Difference]: Start difference. First operand 3121 states and 4017 transitions. Second operand has 8 states, 7 states have (on average 27.0) internal successors, (189), 8 states have internal predecessors, (189), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 06:21:35,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:21:35,038 INFO L93 Difference]: Finished difference Result 3846 states and 4874 transitions. [2023-11-29 06:21:35,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:21:35,038 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 27.0) internal successors, (189), 8 states have internal predecessors, (189), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 147 [2023-11-29 06:21:35,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:21:35,042 INFO L225 Difference]: With dead ends: 3846 [2023-11-29 06:21:35,042 INFO L226 Difference]: Without dead ends: 3844 [2023-11-29 06:21:35,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:21:35,043 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 468 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:21:35,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 563 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 06:21:35,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3844 states. [2023-11-29 06:21:35,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3844 to 3516. [2023-11-29 06:21:35,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3516 states, 3186 states have (on average 1.2379158819836786) internal successors, (3944), 3220 states have internal predecessors, (3944), 294 states have call successors, (294), 7 states have call predecessors, (294), 7 states have return successors, (294), 288 states have call predecessors, (294), 294 states have call successors, (294) [2023-11-29 06:21:35,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3516 states to 3516 states and 4532 transitions. [2023-11-29 06:21:35,537 INFO L78 Accepts]: Start accepts. Automaton has 3516 states and 4532 transitions. Word has length 147 [2023-11-29 06:21:35,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:21:35,537 INFO L495 AbstractCegarLoop]: Abstraction has 3516 states and 4532 transitions. [2023-11-29 06:21:35,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 27.0) internal successors, (189), 8 states have internal predecessors, (189), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 06:21:35,537 INFO L276 IsEmpty]: Start isEmpty. Operand 3516 states and 4532 transitions. [2023-11-29 06:21:35,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 06:21:35,538 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:21:35,538 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-29 06:21:35,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2023-11-29 06:21:35,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2023-11-29 06:21:35,739 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:21:35,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:21:35,739 INFO L85 PathProgramCache]: Analyzing trace with hash 191616527, now seen corresponding path program 3 times [2023-11-29 06:21:35,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:21:35,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750299264] [2023-11-29 06:21:35,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:35,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:21:35,747 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:21:35,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [230644308] [2023-11-29 06:21:35,747 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:21:35,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:35,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:21:35,748 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:21:35,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2023-11-29 06:21:35,868 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 06:21:35,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:21:35,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:21:35,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:21:36,107 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 6 proven. 66 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2023-11-29 06:21:36,107 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:21:36,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:21:36,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750299264] [2023-11-29 06:21:36,497 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:21:36,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230644308] [2023-11-29 06:21:36,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230644308] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:21:36,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:21:36,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 06:21:36,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266721708] [2023-11-29 06:21:36,497 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:21:36,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:21:36,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:21:36,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:21:36,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:21:36,498 INFO L87 Difference]: Start difference. First operand 3516 states and 4532 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:21:37,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:21:37,385 INFO L93 Difference]: Finished difference Result 3667 states and 4701 transitions. [2023-11-29 06:21:37,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:21:37,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 153 [2023-11-29 06:21:37,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:21:37,389 INFO L225 Difference]: With dead ends: 3667 [2023-11-29 06:21:37,389 INFO L226 Difference]: Without dead ends: 3663 [2023-11-29 06:21:37,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:21:37,390 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 154 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:21:37,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 286 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:21:37,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3663 states. [2023-11-29 06:21:37,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3663 to 3598. [2023-11-29 06:21:37,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3598 states, 3260 states have (on average 1.2377300613496933) internal successors, (4035), 3294 states have internal predecessors, (4035), 302 states have call successors, (302), 7 states have call predecessors, (302), 7 states have return successors, (302), 296 states have call predecessors, (302), 302 states have call successors, (302) [2023-11-29 06:21:37,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3598 states to 3598 states and 4639 transitions. [2023-11-29 06:21:37,863 INFO L78 Accepts]: Start accepts. Automaton has 3598 states and 4639 transitions. Word has length 153 [2023-11-29 06:21:37,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:21:37,863 INFO L495 AbstractCegarLoop]: Abstraction has 3598 states and 4639 transitions. [2023-11-29 06:21:37,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:21:37,863 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 4639 transitions. [2023-11-29 06:21:37,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 06:21:37,864 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:21:37,864 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-29 06:21:37,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2023-11-29 06:21:38,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2023-11-29 06:21:38,064 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:21:38,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:21:38,065 INFO L85 PathProgramCache]: Analyzing trace with hash -230363157, now seen corresponding path program 4 times [2023-11-29 06:21:38,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:21:38,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569503222] [2023-11-29 06:21:38,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:38,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:21:38,073 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:21:38,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1002179691] [2023-11-29 06:21:38,073 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 06:21:38,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:38,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:21:38,074 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:21:38,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2023-11-29 06:21:38,145 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 06:21:38,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:21:38,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 06:21:38,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:21:38,807 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:21:38,807 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:21:38,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:21:38,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569503222] [2023-11-29 06:21:38,899 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:21:38,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002179691] [2023-11-29 06:21:38,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002179691] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:21:38,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:21:38,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:21:38,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780123416] [2023-11-29 06:21:38,900 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:21:38,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:21:38,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:21:38,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:21:38,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:21:38,900 INFO L87 Difference]: Start difference. First operand 3598 states and 4639 transitions. Second operand has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:21:40,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:21:40,212 INFO L93 Difference]: Finished difference Result 3611 states and 4647 transitions. [2023-11-29 06:21:40,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:21:40,212 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 153 [2023-11-29 06:21:40,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:21:40,216 INFO L225 Difference]: With dead ends: 3611 [2023-11-29 06:21:40,216 INFO L226 Difference]: Without dead ends: 3610 [2023-11-29 06:21:40,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:21:40,217 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 55 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:21:40,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 398 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:21:40,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3610 states. [2023-11-29 06:21:40,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3610 to 3598. [2023-11-29 06:21:40,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3598 states, 3260 states have (on average 1.2374233128834355) internal successors, (4034), 3294 states have internal predecessors, (4034), 302 states have call successors, (302), 7 states have call predecessors, (302), 7 states have return successors, (302), 296 states have call predecessors, (302), 302 states have call successors, (302) [2023-11-29 06:21:40,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3598 states to 3598 states and 4638 transitions. [2023-11-29 06:21:40,700 INFO L78 Accepts]: Start accepts. Automaton has 3598 states and 4638 transitions. Word has length 153 [2023-11-29 06:21:40,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:21:40,700 INFO L495 AbstractCegarLoop]: Abstraction has 3598 states and 4638 transitions. [2023-11-29 06:21:40,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:21:40,700 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 4638 transitions. [2023-11-29 06:21:40,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 06:21:40,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:21:40,701 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-29 06:21:40,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2023-11-29 06:21:40,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2023-11-29 06:21:40,902 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:21:40,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:21:40,902 INFO L85 PathProgramCache]: Analyzing trace with hash -409064561, now seen corresponding path program 5 times [2023-11-29 06:21:40,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:21:40,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854273091] [2023-11-29 06:21:40,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:40,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:21:40,910 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:21:40,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [74767197] [2023-11-29 06:21:40,910 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 06:21:40,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:40,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:21:40,911 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:21:40,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2023-11-29 06:21:42,003 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-11-29 06:21:42,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:21:42,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:21:42,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:21:42,581 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:21:42,581 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:21:42,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:21:42,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854273091] [2023-11-29 06:21:42,666 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:21:42,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74767197] [2023-11-29 06:21:42,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74767197] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:21:42,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:21:42,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:21:42,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530762242] [2023-11-29 06:21:42,667 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:21:42,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:21:42,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:21:42,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:21:42,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:21:42,668 INFO L87 Difference]: Start difference. First operand 3598 states and 4638 transitions. Second operand has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:21:43,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:21:43,697 INFO L93 Difference]: Finished difference Result 3613 states and 4643 transitions. [2023-11-29 06:21:43,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:21:43,697 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 153 [2023-11-29 06:21:43,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:21:43,701 INFO L225 Difference]: With dead ends: 3613 [2023-11-29 06:21:43,701 INFO L226 Difference]: Without dead ends: 3610 [2023-11-29 06:21:43,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:21:43,702 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 111 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:21:43,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 402 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:21:43,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3610 states. [2023-11-29 06:21:44,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3610 to 3596. [2023-11-29 06:21:44,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3596 states, 3260 states have (on average 1.2365030674846627) internal successors, (4031), 3292 states have internal predecessors, (4031), 302 states have call successors, (302), 7 states have call predecessors, (302), 7 states have return successors, (302), 296 states have call predecessors, (302), 302 states have call successors, (302) [2023-11-29 06:21:44,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3596 states to 3596 states and 4635 transitions. [2023-11-29 06:21:44,177 INFO L78 Accepts]: Start accepts. Automaton has 3596 states and 4635 transitions. Word has length 153 [2023-11-29 06:21:44,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:21:44,177 INFO L495 AbstractCegarLoop]: Abstraction has 3596 states and 4635 transitions. [2023-11-29 06:21:44,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:21:44,177 INFO L276 IsEmpty]: Start isEmpty. Operand 3596 states and 4635 transitions. [2023-11-29 06:21:44,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 06:21:44,179 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:21:44,179 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-29 06:21:44,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2023-11-29 06:21:44,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:44,379 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:21:44,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:21:44,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1100024641, now seen corresponding path program 6 times [2023-11-29 06:21:44,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:21:44,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786187857] [2023-11-29 06:21:44,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:44,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:21:44,388 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:21:44,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [206597596] [2023-11-29 06:21:44,388 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 06:21:44,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:44,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:21:44,389 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:21:44,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2023-11-29 06:21:46,213 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2023-11-29 06:21:46,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:21:46,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 06:21:46,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:21:46,842 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:21:46,843 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:21:46,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:21:46,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786187857] [2023-11-29 06:21:46,915 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:21:46,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206597596] [2023-11-29 06:21:46,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206597596] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:21:46,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:21:46,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:21:46,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662119557] [2023-11-29 06:21:46,916 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:21:46,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:21:46,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:21:46,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:21:46,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:21:46,917 INFO L87 Difference]: Start difference. First operand 3596 states and 4635 transitions. Second operand has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:21:48,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:21:48,090 INFO L93 Difference]: Finished difference Result 3612 states and 4647 transitions. [2023-11-29 06:21:48,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:21:48,091 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 153 [2023-11-29 06:21:48,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:21:48,096 INFO L225 Difference]: With dead ends: 3612 [2023-11-29 06:21:48,096 INFO L226 Difference]: Without dead ends: 3611 [2023-11-29 06:21:48,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:21:48,097 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 87 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:21:48,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 496 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:21:48,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3611 states. [2023-11-29 06:21:48,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3611 to 3596. [2023-11-29 06:21:48,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3596 states, 3260 states have (on average 1.2361963190184049) internal successors, (4030), 3292 states have internal predecessors, (4030), 302 states have call successors, (302), 7 states have call predecessors, (302), 7 states have return successors, (302), 296 states have call predecessors, (302), 302 states have call successors, (302) [2023-11-29 06:21:48,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3596 states to 3596 states and 4634 transitions. [2023-11-29 06:21:48,666 INFO L78 Accepts]: Start accepts. Automaton has 3596 states and 4634 transitions. Word has length 153 [2023-11-29 06:21:48,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:21:48,667 INFO L495 AbstractCegarLoop]: Abstraction has 3596 states and 4634 transitions. [2023-11-29 06:21:48,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:21:48,667 INFO L276 IsEmpty]: Start isEmpty. Operand 3596 states and 4634 transitions. [2023-11-29 06:21:48,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 06:21:48,668 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:21:48,668 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-29 06:21:48,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0 [2023-11-29 06:21:48,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:48,868 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:21:48,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:21:48,868 INFO L85 PathProgramCache]: Analyzing trace with hash 678044957, now seen corresponding path program 7 times [2023-11-29 06:21:48,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:21:48,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568643471] [2023-11-29 06:21:48,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:48,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:21:48,877 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:21:48,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1942950915] [2023-11-29 06:21:48,877 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 06:21:48,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:48,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:21:48,878 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:21:48,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2023-11-29 06:21:48,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:21:48,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 06:21:48,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:21:49,504 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:21:49,504 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:21:49,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:21:49,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568643471] [2023-11-29 06:21:49,582 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:21:49,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942950915] [2023-11-29 06:21:49,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942950915] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:21:49,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:21:49,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:21:49,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801872169] [2023-11-29 06:21:49,582 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:21:49,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:21:49,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:21:49,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:21:49,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:21:49,583 INFO L87 Difference]: Start difference. First operand 3596 states and 4634 transitions. Second operand has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:21:50,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:21:50,447 INFO L93 Difference]: Finished difference Result 3598 states and 4634 transitions. [2023-11-29 06:21:50,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:21:50,447 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 153 [2023-11-29 06:21:50,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:21:50,451 INFO L225 Difference]: With dead ends: 3598 [2023-11-29 06:21:50,451 INFO L226 Difference]: Without dead ends: 3597 [2023-11-29 06:21:50,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:21:50,452 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 60 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:21:50,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 252 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:21:50,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3597 states. [2023-11-29 06:21:50,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3597 to 3596. [2023-11-29 06:21:50,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3596 states, 3260 states have (on average 1.2358895705521473) internal successors, (4029), 3292 states have internal predecessors, (4029), 302 states have call successors, (302), 7 states have call predecessors, (302), 7 states have return successors, (302), 296 states have call predecessors, (302), 302 states have call successors, (302) [2023-11-29 06:21:50,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3596 states to 3596 states and 4633 transitions. [2023-11-29 06:21:50,918 INFO L78 Accepts]: Start accepts. Automaton has 3596 states and 4633 transitions. Word has length 153 [2023-11-29 06:21:50,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:21:50,918 INFO L495 AbstractCegarLoop]: Abstraction has 3596 states and 4633 transitions. [2023-11-29 06:21:50,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:21:50,919 INFO L276 IsEmpty]: Start isEmpty. Operand 3596 states and 4633 transitions. [2023-11-29 06:21:50,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-29 06:21:50,919 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:21:50,920 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 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 06:21:50,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Forceful destruction successful, exit code 0 [2023-11-29 06:21:51,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:51,120 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:21:51,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:21:51,120 INFO L85 PathProgramCache]: Analyzing trace with hash -2103446236, now seen corresponding path program 1 times [2023-11-29 06:21:51,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:21:51,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687495020] [2023-11-29 06:21:51,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:51,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:21:51,126 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:21:51,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [625355324] [2023-11-29 06:21:51,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:51,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:51,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:21:51,128 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:21:51,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2023-11-29 06:21:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:21:51,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:21:51,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:21:51,327 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 61 proven. 1 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2023-11-29 06:21:51,327 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:21:51,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:21:51,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687495020] [2023-11-29 06:21:51,500 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:21:51,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625355324] [2023-11-29 06:21:51,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625355324] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:21:51,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:21:51,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 06:21:51,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780351358] [2023-11-29 06:21:51,500 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:21:51,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:21:51,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:21:51,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:21:51,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:21:51,501 INFO L87 Difference]: Start difference. First operand 3596 states and 4633 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 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 06:21:52,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:21:52,197 INFO L93 Difference]: Finished difference Result 3614 states and 4636 transitions. [2023-11-29 06:21:52,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:21:52,198 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 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 155 [2023-11-29 06:21:52,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:21:52,201 INFO L225 Difference]: With dead ends: 3614 [2023-11-29 06:21:52,201 INFO L226 Difference]: Without dead ends: 3593 [2023-11-29 06:21:52,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:21:52,202 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 127 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:21:52,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 330 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:21:52,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3593 states. [2023-11-29 06:21:52,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3593 to 3575. [2023-11-29 06:21:52,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3575 states, 3244 states have (on average 1.2271886559802712) internal successors, (3981), 3272 states have internal predecessors, (3981), 298 states have call successors, (298), 7 states have call predecessors, (298), 7 states have return successors, (298), 295 states have call predecessors, (298), 298 states have call successors, (298) [2023-11-29 06:21:52,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3575 states to 3575 states and 4577 transitions. [2023-11-29 06:21:52,660 INFO L78 Accepts]: Start accepts. Automaton has 3575 states and 4577 transitions. Word has length 155 [2023-11-29 06:21:52,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:21:52,660 INFO L495 AbstractCegarLoop]: Abstraction has 3575 states and 4577 transitions. [2023-11-29 06:21:52,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 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 06:21:52,661 INFO L276 IsEmpty]: Start isEmpty. Operand 3575 states and 4577 transitions. [2023-11-29 06:21:52,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-29 06:21:52,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:21:52,662 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:21:52,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2023-11-29 06:21:52,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:52,862 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:21:52,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:21:52,862 INFO L85 PathProgramCache]: Analyzing trace with hash -540109519, now seen corresponding path program 3 times [2023-11-29 06:21:52,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:21:52,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744966128] [2023-11-29 06:21:52,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:52,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:21:52,869 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:21:52,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1977327084] [2023-11-29 06:21:52,869 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:21:52,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:52,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:21:52,870 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:21:52,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2023-11-29 06:21:53,329 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 06:21:53,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:21:53,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 06:21:53,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:21:54,041 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 87 proven. 24 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:21:54,041 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:21:54,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:21:54,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744966128] [2023-11-29 06:21:54,241 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:21:54,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977327084] [2023-11-29 06:21:54,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977327084] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:21:54,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:21:54,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:21:54,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68885755] [2023-11-29 06:21:54,242 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:21:54,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:21:54,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:21:54,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:21:54,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:21:54,243 INFO L87 Difference]: Start difference. First operand 3575 states and 4577 transitions. Second operand has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 10 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:21:56,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:21:56,066 INFO L93 Difference]: Finished difference Result 3613 states and 4602 transitions. [2023-11-29 06:21:56,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:21:56,066 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 10 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 155 [2023-11-29 06:21:56,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:21:56,069 INFO L225 Difference]: With dead ends: 3613 [2023-11-29 06:21:56,069 INFO L226 Difference]: Without dead ends: 3612 [2023-11-29 06:21:56,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:21:56,070 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 200 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:21:56,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 574 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 06:21:56,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3612 states. [2023-11-29 06:21:56,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3612 to 3575. [2023-11-29 06:21:56,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3575 states, 3244 states have (on average 1.2262638717632552) internal successors, (3978), 3272 states have internal predecessors, (3978), 298 states have call successors, (298), 7 states have call predecessors, (298), 7 states have return successors, (298), 295 states have call predecessors, (298), 298 states have call successors, (298) [2023-11-29 06:21:56,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3575 states to 3575 states and 4574 transitions. [2023-11-29 06:21:56,554 INFO L78 Accepts]: Start accepts. Automaton has 3575 states and 4574 transitions. Word has length 155 [2023-11-29 06:21:56,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:21:56,554 INFO L495 AbstractCegarLoop]: Abstraction has 3575 states and 4574 transitions. [2023-11-29 06:21:56,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 10 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:21:56,554 INFO L276 IsEmpty]: Start isEmpty. Operand 3575 states and 4574 transitions. [2023-11-29 06:21:56,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-29 06:21:56,555 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:21:56,555 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:21:56,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2023-11-29 06:21:56,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2023-11-29 06:21:56,756 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:21:56,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:21:56,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1959307277, now seen corresponding path program 4 times [2023-11-29 06:21:56,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:21:56,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279067868] [2023-11-29 06:21:56,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:56,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:21:56,764 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:21:56,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [965963607] [2023-11-29 06:21:56,764 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 06:21:56,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:56,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:21:56,765 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:21:56,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2023-11-29 06:21:56,832 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 06:21:56,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:21:56,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 06:21:56,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:21:57,385 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:21:57,385 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:21:57,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:21:57,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279067868] [2023-11-29 06:21:57,455 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:21:57,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965963607] [2023-11-29 06:21:57,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965963607] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:21:57,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:21:57,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:21:57,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176084567] [2023-11-29 06:21:57,455 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:21:57,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:21:57,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:21:57,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:21:57,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:21:57,456 INFO L87 Difference]: Start difference. First operand 3575 states and 4574 transitions. Second operand has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:21:58,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:21:58,372 INFO L93 Difference]: Finished difference Result 3578 states and 4574 transitions. [2023-11-29 06:21:58,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:21:58,373 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 155 [2023-11-29 06:21:58,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:21:58,376 INFO L225 Difference]: With dead ends: 3578 [2023-11-29 06:21:58,377 INFO L226 Difference]: Without dead ends: 3577 [2023-11-29 06:21:58,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:21:58,377 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 81 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:21:58,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 323 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:21:58,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3577 states. [2023-11-29 06:21:58,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3577 to 3575. [2023-11-29 06:21:58,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3575 states, 3244 states have (on average 1.2259556103575833) internal successors, (3977), 3272 states have internal predecessors, (3977), 298 states have call successors, (298), 7 states have call predecessors, (298), 7 states have return successors, (298), 295 states have call predecessors, (298), 298 states have call successors, (298) [2023-11-29 06:21:58,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3575 states to 3575 states and 4573 transitions. [2023-11-29 06:21:58,839 INFO L78 Accepts]: Start accepts. Automaton has 3575 states and 4573 transitions. Word has length 155 [2023-11-29 06:21:58,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:21:58,839 INFO L495 AbstractCegarLoop]: Abstraction has 3575 states and 4573 transitions. [2023-11-29 06:21:58,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:21:58,839 INFO L276 IsEmpty]: Start isEmpty. Operand 3575 states and 4573 transitions. [2023-11-29 06:21:58,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-29 06:21:58,840 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:21:58,840 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:21:58,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2023-11-29 06:21:59,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2023-11-29 06:21:59,041 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:21:59,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:21:59,041 INFO L85 PathProgramCache]: Analyzing trace with hash 495084351, now seen corresponding path program 5 times [2023-11-29 06:21:59,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:21:59,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066094599] [2023-11-29 06:21:59,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:21:59,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:21:59,047 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:21:59,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [209853683] [2023-11-29 06:21:59,048 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 06:21:59,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:21:59,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:21:59,049 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:21:59,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2023-11-29 06:21:59,117 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-11-29 06:21:59,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:21:59,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:21:59,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:21:59,648 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:21:59,648 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:21:59,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:21:59,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066094599] [2023-11-29 06:21:59,734 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:21:59,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209853683] [2023-11-29 06:21:59,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209853683] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:21:59,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:21:59,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:21:59,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009578330] [2023-11-29 06:21:59,734 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:21:59,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:21:59,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:21:59,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:21:59,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:21:59,735 INFO L87 Difference]: Start difference. First operand 3575 states and 4573 transitions. Second operand has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:22:00,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:22:00,529 INFO L93 Difference]: Finished difference Result 3579 states and 4573 transitions. [2023-11-29 06:22:00,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:22:00,530 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 155 [2023-11-29 06:22:00,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:22:00,533 INFO L225 Difference]: With dead ends: 3579 [2023-11-29 06:22:00,533 INFO L226 Difference]: Without dead ends: 3578 [2023-11-29 06:22:00,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:22:00,534 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 46 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:22:00,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 327 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:22:00,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3578 states. [2023-11-29 06:22:00,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3578 to 3575. [2023-11-29 06:22:00,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3575 states, 3244 states have (on average 1.2256473489519113) internal successors, (3976), 3272 states have internal predecessors, (3976), 298 states have call successors, (298), 7 states have call predecessors, (298), 7 states have return successors, (298), 295 states have call predecessors, (298), 298 states have call successors, (298) [2023-11-29 06:22:00,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3575 states to 3575 states and 4572 transitions. [2023-11-29 06:22:00,998 INFO L78 Accepts]: Start accepts. Automaton has 3575 states and 4572 transitions. Word has length 155 [2023-11-29 06:22:00,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:22:00,998 INFO L495 AbstractCegarLoop]: Abstraction has 3575 states and 4572 transitions. [2023-11-29 06:22:00,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:22:00,998 INFO L276 IsEmpty]: Start isEmpty. Operand 3575 states and 4572 transitions. [2023-11-29 06:22:00,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-29 06:22:00,999 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:22:00,999 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:22:01,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0 [2023-11-29 06:22:01,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2023-11-29 06:22:01,200 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:22:01,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:22:01,200 INFO L85 PathProgramCache]: Analyzing trace with hash 561726947, now seen corresponding path program 6 times [2023-11-29 06:22:01,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:22:01,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744217297] [2023-11-29 06:22:01,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:22:01,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:22:01,206 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:22:01,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [390600661] [2023-11-29 06:22:01,207 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 06:22:01,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:22:01,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:22:01,207 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:22:01,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2023-11-29 06:22:04,223 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2023-11-29 06:22:04,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:22:04,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:22:04,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:22:11,824 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 27 proven. 84 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:22:11,824 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:22:13,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:22:13,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744217297] [2023-11-29 06:22:13,079 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:22:13,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390600661] [2023-11-29 06:22:13,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390600661] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:22:13,079 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:22:13,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:22:13,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064855810] [2023-11-29 06:22:13,079 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:22:13,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:22:13,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:22:13,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:22:13,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=109, Unknown=4, NotChecked=0, Total=156 [2023-11-29 06:22:13,080 INFO L87 Difference]: Start difference. First operand 3575 states and 4572 transitions. Second operand has 9 states, 8 states have (on average 13.25) internal successors, (106), 9 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:22:17,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:22:20,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:22:22,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:22:24,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:22:28,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:22:30,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:22:32,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:22:34,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:22:36,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:22:39,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:22:42,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:22:44,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:22:46,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:22:48,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:22:50,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:22:53,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:22:55,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:22:58,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:23:02,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:23:03,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:23:20,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:23:24,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:23:26,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:23:30,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:23:33,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.97s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:23:38,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:23:41,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:23:44,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:23:46,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:23:50,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:23:54,465 WARN L539 Checker$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 06:23:59,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:24:01,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:24:04,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:24:07,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:24:09,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:24:12,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:24:16,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:24:19,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:24:21,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:24:22,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:24:26,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:24:28,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:24:30,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:24:32,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:24:32,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:32,397 INFO L93 Difference]: Finished difference Result 3657 states and 4638 transitions. [2023-11-29 06:24:32,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:24:32,398 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.25) internal successors, (106), 9 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 155 [2023-11-29 06:24:32,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:32,402 INFO L225 Difference]: With dead ends: 3657 [2023-11-29 06:24:32,402 INFO L226 Difference]: Without dead ends: 3656 [2023-11-29 06:24:32,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=60, Invalid=146, Unknown=4, NotChecked=0, Total=210 [2023-11-29 06:24:32,403 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 152 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 9 mSolverCounterUnsat, 90 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 138.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 90 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 138.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:32,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 688 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1272 Invalid, 90 Unknown, 0 Unchecked, 138.8s Time] [2023-11-29 06:24:32,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3656 states. [2023-11-29 06:24:32,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3656 to 3575. [2023-11-29 06:24:32,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3575 states, 3244 states have (on average 1.2247225647348952) internal successors, (3973), 3272 states have internal predecessors, (3973), 298 states have call successors, (298), 7 states have call predecessors, (298), 7 states have return successors, (298), 295 states have call predecessors, (298), 298 states have call successors, (298) [2023-11-29 06:24:32,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3575 states to 3575 states and 4569 transitions. [2023-11-29 06:24:32,867 INFO L78 Accepts]: Start accepts. Automaton has 3575 states and 4569 transitions. Word has length 155 [2023-11-29 06:24:32,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:32,868 INFO L495 AbstractCegarLoop]: Abstraction has 3575 states and 4569 transitions. [2023-11-29 06:24:32,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.25) internal successors, (106), 9 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:24:32,868 INFO L276 IsEmpty]: Start isEmpty. Operand 3575 states and 4569 transitions. [2023-11-29 06:24:32,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-29 06:24:32,869 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:32,869 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:32,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2023-11-29 06:24:33,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2023-11-29 06:24:33,069 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:24:33,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:33,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1610642947, now seen corresponding path program 1 times [2023-11-29 06:24:33,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:33,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483030009] [2023-11-29 06:24:33,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:33,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:33,078 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:33,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [95058387] [2023-11-29 06:24:33,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:33,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:33,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:33,079 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:33,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2023-11-29 06:24:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:33,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:24:33,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:33,896 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-29 06:24:33,896 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:24:34,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:34,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483030009] [2023-11-29 06:24:34,083 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:34,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95058387] [2023-11-29 06:24:34,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95058387] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:24:34,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:24:34,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:24:34,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597072602] [2023-11-29 06:24:34,083 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:24:34,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:24:34,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:34,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:24:34,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:24:34,084 INFO L87 Difference]: Start difference. First operand 3575 states and 4569 transitions. Second operand has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 10 states have internal predecessors, (109), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 06:24:35,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:35,375 INFO L93 Difference]: Finished difference Result 3704 states and 4720 transitions. [2023-11-29 06:24:35,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:24:35,376 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 10 states have internal predecessors, (109), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 163 [2023-11-29 06:24:35,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:35,380 INFO L225 Difference]: With dead ends: 3704 [2023-11-29 06:24:35,380 INFO L226 Difference]: Without dead ends: 3701 [2023-11-29 06:24:35,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:24:35,381 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 186 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:35,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 508 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:24:35,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3701 states. [2023-11-29 06:24:35,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3701 to 3631. [2023-11-29 06:24:35,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3631 states, 3295 states have (on average 1.2261001517450683) internal successors, (4040), 3322 states have internal predecessors, (4040), 303 states have call successors, (303), 7 states have call predecessors, (303), 7 states have return successors, (303), 301 states have call predecessors, (303), 303 states have call successors, (303) [2023-11-29 06:24:35,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3631 states to 3631 states and 4646 transitions. [2023-11-29 06:24:35,854 INFO L78 Accepts]: Start accepts. Automaton has 3631 states and 4646 transitions. Word has length 163 [2023-11-29 06:24:35,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:35,854 INFO L495 AbstractCegarLoop]: Abstraction has 3631 states and 4646 transitions. [2023-11-29 06:24:35,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 10 states have internal predecessors, (109), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 06:24:35,855 INFO L276 IsEmpty]: Start isEmpty. Operand 3631 states and 4646 transitions. [2023-11-29 06:24:35,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-29 06:24:35,855 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:35,856 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:35,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0 [2023-11-29 06:24:36,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:36,056 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:24:36,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:36,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1740920337, now seen corresponding path program 3 times [2023-11-29 06:24:36,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:36,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165881659] [2023-11-29 06:24:36,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:36,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:36,063 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:36,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1581628546] [2023-11-29 06:24:36,064 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:24:36,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:36,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:36,064 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:36,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2023-11-29 06:24:36,139 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 06:24:36,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:24:36,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:24:36,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:36,808 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 3 proven. 135 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2023-11-29 06:24:36,808 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:24:36,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:36,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165881659] [2023-11-29 06:24:36,897 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:36,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581628546] [2023-11-29 06:24:36,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581628546] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:24:36,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:24:36,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:24:36,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728051871] [2023-11-29 06:24:36,897 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:24:36,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:24:36,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:36,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:24:36,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:24:36,898 INFO L87 Difference]: Start difference. First operand 3631 states and 4646 transitions. Second operand has 10 states, 8 states have (on average 14.0) internal successors, (112), 9 states have internal predecessors, (112), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 06:24:38,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:38,584 INFO L93 Difference]: Finished difference Result 4130 states and 5263 transitions. [2023-11-29 06:24:38,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:24:38,585 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 14.0) internal successors, (112), 9 states have internal predecessors, (112), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 163 [2023-11-29 06:24:38,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:38,588 INFO L225 Difference]: With dead ends: 4130 [2023-11-29 06:24:38,588 INFO L226 Difference]: Without dead ends: 4119 [2023-11-29 06:24:38,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:24:38,589 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 317 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:38,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 709 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:24:38,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4119 states. [2023-11-29 06:24:39,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4119 to 3661. [2023-11-29 06:24:39,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3661 states, 3323 states have (on average 1.2250978031898887) internal successors, (4071), 3349 states have internal predecessors, (4071), 305 states have call successors, (305), 7 states have call predecessors, (305), 7 states have return successors, (305), 304 states have call predecessors, (305), 305 states have call successors, (305) [2023-11-29 06:24:39,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3661 states to 3661 states and 4681 transitions. [2023-11-29 06:24:39,073 INFO L78 Accepts]: Start accepts. Automaton has 3661 states and 4681 transitions. Word has length 163 [2023-11-29 06:24:39,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:39,073 INFO L495 AbstractCegarLoop]: Abstraction has 3661 states and 4681 transitions. [2023-11-29 06:24:39,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 14.0) internal successors, (112), 9 states have internal predecessors, (112), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 06:24:39,073 INFO L276 IsEmpty]: Start isEmpty. Operand 3661 states and 4681 transitions. [2023-11-29 06:24:39,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-29 06:24:39,074 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:39,074 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:39,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Forceful destruction successful, exit code 0 [2023-11-29 06:24:39,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2023-11-29 06:24:39,274 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:24:39,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:39,275 INFO L85 PathProgramCache]: Analyzing trace with hash 530307923, now seen corresponding path program 2 times [2023-11-29 06:24:39,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:39,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138920786] [2023-11-29 06:24:39,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:39,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:39,281 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:39,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [405851266] [2023-11-29 06:24:39,281 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:24:39,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:39,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:39,282 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:39,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2023-11-29 06:24:39,350 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:24:39,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:24:39,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:24:39,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:40,175 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-29 06:24:40,175 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:24:40,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:40,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138920786] [2023-11-29 06:24:40,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:40,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405851266] [2023-11-29 06:24:40,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405851266] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:24:40,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:24:40,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:24:40,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177034261] [2023-11-29 06:24:40,467 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:24:40,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:24:40,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:40,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:24:40,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:24:40,468 INFO L87 Difference]: Start difference. First operand 3661 states and 4681 transitions. Second operand has 11 states, 10 states have (on average 11.2) internal successors, (112), 11 states have internal predecessors, (112), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 06:24:41,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:41,911 INFO L93 Difference]: Finished difference Result 3797 states and 4841 transitions. [2023-11-29 06:24:41,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:24:41,912 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), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 166 [2023-11-29 06:24:41,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:41,915 INFO L225 Difference]: With dead ends: 3797 [2023-11-29 06:24:41,915 INFO L226 Difference]: Without dead ends: 3787 [2023-11-29 06:24:41,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2023-11-29 06:24:41,915 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 219 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:41,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 493 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:24:41,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3787 states. [2023-11-29 06:24:42,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3787 to 3668. [2023-11-29 06:24:42,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3668 states, 3330 states have (on average 1.2237237237237237) internal successors, (4075), 3356 states have internal predecessors, (4075), 305 states have call successors, (305), 7 states have call predecessors, (305), 7 states have return successors, (305), 304 states have call predecessors, (305), 305 states have call successors, (305) [2023-11-29 06:24:42,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 4685 transitions. [2023-11-29 06:24:42,412 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 4685 transitions. Word has length 166 [2023-11-29 06:24:42,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:42,413 INFO L495 AbstractCegarLoop]: Abstraction has 3668 states and 4685 transitions. [2023-11-29 06:24:42,413 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), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 06:24:42,413 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 4685 transitions. [2023-11-29 06:24:42,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-29 06:24:42,414 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:42,414 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:42,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Forceful destruction successful, exit code 0 [2023-11-29 06:24:42,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:42,614 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:24:42,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:42,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1026402171, now seen corresponding path program 3 times [2023-11-29 06:24:42,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:42,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055106825] [2023-11-29 06:24:42,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:42,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:42,621 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:42,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [751904656] [2023-11-29 06:24:42,621 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:24:42,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:42,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:42,622 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:42,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2023-11-29 06:24:42,708 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 06:24:42,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:24:42,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:24:42,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:43,386 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2023-11-29 06:24:43,386 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:24:43,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:43,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055106825] [2023-11-29 06:24:43,678 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:43,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751904656] [2023-11-29 06:24:43,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751904656] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:24:43,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:24:43,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:24:43,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745665993] [2023-11-29 06:24:43,678 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:24:43,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:24:43,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:43,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:24:43,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:24:43,679 INFO L87 Difference]: Start difference. First operand 3668 states and 4685 transitions. Second operand has 10 states, 8 states have (on average 14.375) internal successors, (115), 9 states have internal predecessors, (115), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 06:24:45,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:45,111 INFO L93 Difference]: Finished difference Result 4126 states and 5244 transitions. [2023-11-29 06:24:45,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:24:45,111 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 14.375) internal successors, (115), 9 states have internal predecessors, (115), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) Word has length 166 [2023-11-29 06:24:45,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:45,115 INFO L225 Difference]: With dead ends: 4126 [2023-11-29 06:24:45,115 INFO L226 Difference]: Without dead ends: 4116 [2023-11-29 06:24:45,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:24:45,116 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 406 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:45,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 554 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:24:45,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4116 states. [2023-11-29 06:24:45,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4116 to 3784. [2023-11-29 06:24:45,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3784 states, 3437 states have (on average 1.2228687809135874) internal successors, (4203), 3462 states have internal predecessors, (4203), 314 states have call successors, (314), 7 states have call predecessors, (314), 7 states have return successors, (314), 314 states have call predecessors, (314), 314 states have call successors, (314) [2023-11-29 06:24:45,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3784 states to 3784 states and 4831 transitions. [2023-11-29 06:24:45,623 INFO L78 Accepts]: Start accepts. Automaton has 3784 states and 4831 transitions. Word has length 166 [2023-11-29 06:24:45,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:45,623 INFO L495 AbstractCegarLoop]: Abstraction has 3784 states and 4831 transitions. [2023-11-29 06:24:45,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 14.375) internal successors, (115), 9 states have internal predecessors, (115), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 06:24:45,624 INFO L276 IsEmpty]: Start isEmpty. Operand 3784 states and 4831 transitions. [2023-11-29 06:24:45,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-29 06:24:45,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:45,625 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:45,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2023-11-29 06:24:45,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:45,826 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:24:45,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:45,826 INFO L85 PathProgramCache]: Analyzing trace with hash 844911374, now seen corresponding path program 3 times [2023-11-29 06:24:45,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:45,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698186896] [2023-11-29 06:24:45,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:45,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:45,833 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:45,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2026886957] [2023-11-29 06:24:45,834 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:24:45,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:45,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:45,834 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:45,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2023-11-29 06:24:45,893 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 06:24:45,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:24:45,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-29 06:24:45,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:51,298 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 142 proven. 3 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 06:24:51,298 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:25:14,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:14,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698186896] [2023-11-29 06:25:14,181 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:14,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026886957] [2023-11-29 06:25:14,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026886957] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:25:14,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:25:14,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 06:25:14,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344142194] [2023-11-29 06:25:14,181 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:25:14,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 06:25:14,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:14,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 06:25:14,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=481, Unknown=2, NotChecked=0, Total=600 [2023-11-29 06:25:14,182 INFO L87 Difference]: Start difference. First operand 3784 states and 4831 transitions. Second operand has 16 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-29 06:25:28,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:28,505 INFO L93 Difference]: Finished difference Result 3825 states and 4853 transitions. [2023-11-29 06:25:28,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 06:25:28,506 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) Word has length 174 [2023-11-29 06:25:28,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:28,509 INFO L225 Difference]: With dead ends: 3825 [2023-11-29 06:25:28,509 INFO L226 Difference]: Without dead ends: 3822 [2023-11-29 06:25:28,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 185 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 26.5s TimeCoverageRelationStatistics Valid=242, Invalid=812, Unknown=2, NotChecked=0, Total=1056 [2023-11-29 06:25:28,510 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 418 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:28,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 299 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2023-11-29 06:25:28,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3822 states. [2023-11-29 06:25:29,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3822 to 3781. [2023-11-29 06:25:29,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3781 states, 3434 states have (on average 1.2210250436808388) internal successors, (4193), 3459 states have internal predecessors, (4193), 314 states have call successors, (314), 7 states have call predecessors, (314), 7 states have return successors, (314), 314 states have call predecessors, (314), 314 states have call successors, (314) [2023-11-29 06:25:29,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3781 states to 3781 states and 4821 transitions. [2023-11-29 06:25:29,024 INFO L78 Accepts]: Start accepts. Automaton has 3781 states and 4821 transitions. Word has length 174 [2023-11-29 06:25:29,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:29,024 INFO L495 AbstractCegarLoop]: Abstraction has 3781 states and 4821 transitions. [2023-11-29 06:25:29,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-29 06:25:29,024 INFO L276 IsEmpty]: Start isEmpty. Operand 3781 states and 4821 transitions. [2023-11-29 06:25:29,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-29 06:25:29,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:29,025 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:29,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2023-11-29 06:25:29,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:29,226 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:25:29,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:29,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1625063872, now seen corresponding path program 1 times [2023-11-29 06:25:29,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:29,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879269707] [2023-11-29 06:25:29,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:29,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:29,235 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:29,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1235506959] [2023-11-29 06:25:29,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:29,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:29,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:29,236 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:29,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2023-11-29 06:25:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:25:29,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:25:29,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:25:30,143 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-29 06:25:30,143 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:25:30,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:30,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879269707] [2023-11-29 06:25:30,243 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:30,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235506959] [2023-11-29 06:25:30,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235506959] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:25:30,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:25:30,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:25:30,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012139238] [2023-11-29 06:25:30,243 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:25:30,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:25:30,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:30,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:25:30,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:25:30,244 INFO L87 Difference]: Start difference. First operand 3781 states and 4821 transitions. Second operand has 11 states, 10 states have (on average 11.5) internal successors, (115), 11 states have internal predecessors, (115), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:25:31,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:31,507 INFO L93 Difference]: Finished difference Result 3862 states and 4912 transitions. [2023-11-29 06:25:31,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:25:31,507 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.5) internal successors, (115), 11 states have internal predecessors, (115), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 174 [2023-11-29 06:25:31,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:31,511 INFO L225 Difference]: With dead ends: 3862 [2023-11-29 06:25:31,511 INFO L226 Difference]: Without dead ends: 3861 [2023-11-29 06:25:31,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:25:31,511 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 156 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:31,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 428 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:25:31,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3861 states. [2023-11-29 06:25:32,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3861 to 3781. [2023-11-29 06:25:32,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3781 states, 3434 states have (on average 1.2207338380896913) internal successors, (4192), 3459 states have internal predecessors, (4192), 314 states have call successors, (314), 7 states have call predecessors, (314), 7 states have return successors, (314), 314 states have call predecessors, (314), 314 states have call successors, (314) [2023-11-29 06:25:32,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3781 states to 3781 states and 4820 transitions. [2023-11-29 06:25:32,023 INFO L78 Accepts]: Start accepts. Automaton has 3781 states and 4820 transitions. Word has length 174 [2023-11-29 06:25:32,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:32,023 INFO L495 AbstractCegarLoop]: Abstraction has 3781 states and 4820 transitions. [2023-11-29 06:25:32,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.5) internal successors, (115), 11 states have internal predecessors, (115), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:25:32,023 INFO L276 IsEmpty]: Start isEmpty. Operand 3781 states and 4820 transitions. [2023-11-29 06:25:32,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-11-29 06:25:32,024 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:32,024 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:32,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2023-11-29 06:25:32,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable83 [2023-11-29 06:25:32,225 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:25:32,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:32,225 INFO L85 PathProgramCache]: Analyzing trace with hash 593628273, now seen corresponding path program 2 times [2023-11-29 06:25:32,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:32,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584569358] [2023-11-29 06:25:32,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:32,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:32,235 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:32,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2096682082] [2023-11-29 06:25:32,236 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:25:32,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:32,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:32,237 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:32,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2023-11-29 06:25:32,303 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:25:32,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:25:32,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:25:32,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:25:33,108 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-29 06:25:33,108 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:25:33,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:33,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584569358] [2023-11-29 06:25:33,338 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:33,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096682082] [2023-11-29 06:25:33,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096682082] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:25:33,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:25:33,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:25:33,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410852496] [2023-11-29 06:25:33,338 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:25:33,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:25:33,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:33,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:25:33,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:25:33,339 INFO L87 Difference]: Start difference. First operand 3781 states and 4820 transitions. Second operand has 11 states, 10 states have (on average 11.8) internal successors, (118), 11 states have internal predecessors, (118), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:25:34,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:34,923 INFO L93 Difference]: Finished difference Result 3864 states and 4914 transitions. [2023-11-29 06:25:34,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:25:34,924 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.8) internal successors, (118), 11 states have internal predecessors, (118), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 177 [2023-11-29 06:25:34,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:34,928 INFO L225 Difference]: With dead ends: 3864 [2023-11-29 06:25:34,928 INFO L226 Difference]: Without dead ends: 3863 [2023-11-29 06:25:34,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:25:34,929 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 182 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:34,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 454 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:25:34,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3863 states. [2023-11-29 06:25:35,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3863 to 3781. [2023-11-29 06:25:35,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3781 states, 3434 states have (on average 1.220442632498544) internal successors, (4191), 3459 states have internal predecessors, (4191), 314 states have call successors, (314), 7 states have call predecessors, (314), 7 states have return successors, (314), 314 states have call predecessors, (314), 314 states have call successors, (314) [2023-11-29 06:25:35,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3781 states to 3781 states and 4819 transitions. [2023-11-29 06:25:35,453 INFO L78 Accepts]: Start accepts. Automaton has 3781 states and 4819 transitions. Word has length 177 [2023-11-29 06:25:35,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:35,453 INFO L495 AbstractCegarLoop]: Abstraction has 3781 states and 4819 transitions. [2023-11-29 06:25:35,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.8) internal successors, (118), 11 states have internal predecessors, (118), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:25:35,453 INFO L276 IsEmpty]: Start isEmpty. Operand 3781 states and 4819 transitions. [2023-11-29 06:25:35,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-11-29 06:25:35,455 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:35,455 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:35,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2023-11-29 06:25:35,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:35,656 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:25:35,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:35,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1368679403, now seen corresponding path program 3 times [2023-11-29 06:25:35,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:35,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360979559] [2023-11-29 06:25:35,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:35,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:35,665 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:35,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [73244909] [2023-11-29 06:25:35,665 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:25:35,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:35,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:35,666 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:35,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2023-11-29 06:25:36,004 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 06:25:36,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:25:36,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:25:36,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:25:36,933 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-29 06:25:36,934 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:25:37,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:37,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360979559] [2023-11-29 06:25:37,160 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:37,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73244909] [2023-11-29 06:25:37,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73244909] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:25:37,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:25:37,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:25:37,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655818529] [2023-11-29 06:25:37,161 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:25:37,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:25:37,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:37,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:25:37,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:25:37,162 INFO L87 Difference]: Start difference. First operand 3781 states and 4819 transitions. Second operand has 11 states, 10 states have (on average 11.8) internal successors, (118), 11 states have internal predecessors, (118), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:25:38,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:38,690 INFO L93 Difference]: Finished difference Result 3855 states and 4898 transitions. [2023-11-29 06:25:38,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:25:38,691 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.8) internal successors, (118), 11 states have internal predecessors, (118), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 177 [2023-11-29 06:25:38,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:38,695 INFO L225 Difference]: With dead ends: 3855 [2023-11-29 06:25:38,695 INFO L226 Difference]: Without dead ends: 3854 [2023-11-29 06:25:38,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:25:38,696 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 152 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:38,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 697 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:25:38,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3854 states. [2023-11-29 06:25:39,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3854 to 3781. [2023-11-29 06:25:39,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3781 states, 3434 states have (on average 1.2201514269073965) internal successors, (4190), 3459 states have internal predecessors, (4190), 314 states have call successors, (314), 7 states have call predecessors, (314), 7 states have return successors, (314), 314 states have call predecessors, (314), 314 states have call successors, (314) [2023-11-29 06:25:39,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3781 states to 3781 states and 4818 transitions. [2023-11-29 06:25:39,210 INFO L78 Accepts]: Start accepts. Automaton has 3781 states and 4818 transitions. Word has length 177 [2023-11-29 06:25:39,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:39,210 INFO L495 AbstractCegarLoop]: Abstraction has 3781 states and 4818 transitions. [2023-11-29 06:25:39,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.8) internal successors, (118), 11 states have internal predecessors, (118), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:25:39,210 INFO L276 IsEmpty]: Start isEmpty. Operand 3781 states and 4818 transitions. [2023-11-29 06:25:39,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-11-29 06:25:39,211 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:39,211 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:39,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2023-11-29 06:25:39,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:39,412 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:25:39,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:39,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1273449379, now seen corresponding path program 4 times [2023-11-29 06:25:39,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:39,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883065131] [2023-11-29 06:25:39,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:39,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:39,419 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:39,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [523980215] [2023-11-29 06:25:39,420 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 06:25:39,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:39,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:39,420 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:39,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2023-11-29 06:25:39,486 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 06:25:39,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:25:39,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:25:39,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:25:40,293 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-29 06:25:40,293 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:25:40,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:40,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883065131] [2023-11-29 06:25:40,642 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:40,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523980215] [2023-11-29 06:25:40,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523980215] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:25:40,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:25:40,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:25:40,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583681295] [2023-11-29 06:25:40,642 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:25:40,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:25:40,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:40,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:25:40,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:25:40,643 INFO L87 Difference]: Start difference. First operand 3781 states and 4818 transitions. Second operand has 10 states, 9 states have (on average 13.11111111111111) internal successors, (118), 10 states have internal predecessors, (118), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:25:42,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:42,127 INFO L93 Difference]: Finished difference Result 3882 states and 4933 transitions. [2023-11-29 06:25:42,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:25:42,128 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.11111111111111) internal successors, (118), 10 states have internal predecessors, (118), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 177 [2023-11-29 06:25:42,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:42,132 INFO L225 Difference]: With dead ends: 3882 [2023-11-29 06:25:42,132 INFO L226 Difference]: Without dead ends: 3881 [2023-11-29 06:25:42,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:25:42,132 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 196 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:42,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 447 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:25:42,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3881 states. [2023-11-29 06:25:42,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3881 to 3781. [2023-11-29 06:25:42,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3781 states, 3434 states have (on average 1.2198602213162493) internal successors, (4189), 3459 states have internal predecessors, (4189), 314 states have call successors, (314), 7 states have call predecessors, (314), 7 states have return successors, (314), 314 states have call predecessors, (314), 314 states have call successors, (314) [2023-11-29 06:25:42,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3781 states to 3781 states and 4817 transitions. [2023-11-29 06:25:42,651 INFO L78 Accepts]: Start accepts. Automaton has 3781 states and 4817 transitions. Word has length 177 [2023-11-29 06:25:42,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:42,651 INFO L495 AbstractCegarLoop]: Abstraction has 3781 states and 4817 transitions. [2023-11-29 06:25:42,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.11111111111111) internal successors, (118), 10 states have internal predecessors, (118), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:25:42,651 INFO L276 IsEmpty]: Start isEmpty. Operand 3781 states and 4817 transitions. [2023-11-29 06:25:42,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-29 06:25:42,652 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:42,652 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:42,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Ended with exit code 0 [2023-11-29 06:25:42,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:42,853 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:25:42,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:42,853 INFO L85 PathProgramCache]: Analyzing trace with hash 2098988376, now seen corresponding path program 1 times [2023-11-29 06:25:42,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:42,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98179291] [2023-11-29 06:25:42,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:42,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:42,864 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:42,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [729967432] [2023-11-29 06:25:42,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:42,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:42,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:42,865 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:42,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2023-11-29 06:25:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:25:42,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:25:42,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:25:43,187 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2023-11-29 06:25:43,187 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:25:43,380 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2023-11-29 06:25:43,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:43,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98179291] [2023-11-29 06:25:43,380 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:43,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729967432] [2023-11-29 06:25:43,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729967432] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:25:43,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:25:43,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 06:25:43,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44806604] [2023-11-29 06:25:43,381 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:25:43,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:25:43,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:43,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:25:43,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:25:43,382 INFO L87 Difference]: Start difference. First operand 3781 states and 4817 transitions. Second operand has 14 states, 13 states have (on average 15.23076923076923) internal successors, (198), 14 states have internal predecessors, (198), 8 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-11-29 06:25:44,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:44,507 INFO L93 Difference]: Finished difference Result 3879 states and 4880 transitions. [2023-11-29 06:25:44,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 06:25:44,508 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 15.23076923076923) internal successors, (198), 14 states have internal predecessors, (198), 8 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 188 [2023-11-29 06:25:44,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:44,512 INFO L225 Difference]: With dead ends: 3879 [2023-11-29 06:25:44,512 INFO L226 Difference]: Without dead ends: 3877 [2023-11-29 06:25:44,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=277, Invalid=535, Unknown=0, NotChecked=0, Total=812 [2023-11-29 06:25:44,513 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 860 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:44,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 696 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:25:44,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3877 states. [2023-11-29 06:25:45,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3877 to 3526. [2023-11-29 06:25:45,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3526 states, 3203 states have (on average 1.208866687480487) internal successors, (3872), 3228 states have internal predecessors, (3872), 290 states have call successors, (290), 7 states have call predecessors, (290), 7 states have return successors, (290), 290 states have call predecessors, (290), 290 states have call successors, (290) [2023-11-29 06:25:45,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3526 states to 3526 states and 4452 transitions. [2023-11-29 06:25:45,025 INFO L78 Accepts]: Start accepts. Automaton has 3526 states and 4452 transitions. Word has length 188 [2023-11-29 06:25:45,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:45,025 INFO L495 AbstractCegarLoop]: Abstraction has 3526 states and 4452 transitions. [2023-11-29 06:25:45,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 15.23076923076923) internal successors, (198), 14 states have internal predecessors, (198), 8 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-11-29 06:25:45,025 INFO L276 IsEmpty]: Start isEmpty. Operand 3526 states and 4452 transitions. [2023-11-29 06:25:45,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-11-29 06:25:45,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:45,027 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:45,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2023-11-29 06:25:45,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:45,228 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:25:45,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:45,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1099301916, now seen corresponding path program 1 times [2023-11-29 06:25:45,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:45,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944204756] [2023-11-29 06:25:45,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:45,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:45,239 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:45,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [395546076] [2023-11-29 06:25:45,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:45,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:45,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:45,241 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:45,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2023-11-29 06:25:45,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:25:45,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:25:45,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:25:45,654 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-11-29 06:25:45,654 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:25:45,853 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-11-29 06:25:45,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:45,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944204756] [2023-11-29 06:25:45,853 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:45,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395546076] [2023-11-29 06:25:45,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395546076] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:25:45,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:25:45,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 06:25:45,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852775665] [2023-11-29 06:25:45,854 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:25:45,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:25:45,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:45,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:25:45,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:25:45,855 INFO L87 Difference]: Start difference. First operand 3526 states and 4452 transitions. Second operand has 10 states, 9 states have (on average 27.0) internal successors, (243), 10 states have internal predecessors, (243), 9 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) [2023-11-29 06:25:48,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:48,282 INFO L93 Difference]: Finished difference Result 4483 states and 5593 transitions. [2023-11-29 06:25:48,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:25:48,282 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 27.0) internal successors, (243), 10 states have internal predecessors, (243), 9 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) Word has length 189 [2023-11-29 06:25:48,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:48,287 INFO L225 Difference]: With dead ends: 4483 [2023-11-29 06:25:48,287 INFO L226 Difference]: Without dead ends: 4481 [2023-11-29 06:25:48,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=158, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:25:48,288 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 567 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:48,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 729 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 06:25:48,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4481 states. [2023-11-29 06:25:48,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4481 to 4088. [2023-11-29 06:25:48,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4088 states, 3711 states have (on average 1.2126111560226354) internal successors, (4500), 3736 states have internal predecessors, (4500), 344 states have call successors, (344), 7 states have call predecessors, (344), 7 states have return successors, (344), 344 states have call predecessors, (344), 344 states have call successors, (344) [2023-11-29 06:25:48,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4088 states to 4088 states and 5188 transitions. [2023-11-29 06:25:48,907 INFO L78 Accepts]: Start accepts. Automaton has 4088 states and 5188 transitions. Word has length 189 [2023-11-29 06:25:48,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:48,907 INFO L495 AbstractCegarLoop]: Abstraction has 4088 states and 5188 transitions. [2023-11-29 06:25:48,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 27.0) internal successors, (243), 10 states have internal predecessors, (243), 9 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) [2023-11-29 06:25:48,907 INFO L276 IsEmpty]: Start isEmpty. Operand 4088 states and 5188 transitions. [2023-11-29 06:25:48,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-29 06:25:48,909 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:48,909 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:48,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2023-11-29 06:25:49,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:49,109 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:25:49,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:49,109 INFO L85 PathProgramCache]: Analyzing trace with hash 462173930, now seen corresponding path program 1 times [2023-11-29 06:25:49,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:49,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663443641] [2023-11-29 06:25:49,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:49,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:49,117 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:49,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [640196040] [2023-11-29 06:25:49,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:49,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:49,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:49,118 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:49,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2023-11-29 06:25:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:25:49,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:25:49,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:25:49,529 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-11-29 06:25:49,529 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:25:49,741 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-11-29 06:25:49,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:49,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663443641] [2023-11-29 06:25:49,741 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:49,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640196040] [2023-11-29 06:25:49,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640196040] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:25:49,741 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:25:49,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 06:25:49,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570698021] [2023-11-29 06:25:49,742 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:25:49,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:25:49,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:49,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:25:49,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:25:49,743 INFO L87 Difference]: Start difference. First operand 4088 states and 5188 transitions. Second operand has 10 states, 9 states have (on average 27.666666666666668) internal successors, (249), 10 states have internal predecessors, (249), 9 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) [2023-11-29 06:25:52,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:52,014 INFO L93 Difference]: Finished difference Result 5002 states and 6275 transitions. [2023-11-29 06:25:52,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:25:52,015 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 27.666666666666668) internal successors, (249), 10 states have internal predecessors, (249), 9 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) Word has length 192 [2023-11-29 06:25:52,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:52,020 INFO L225 Difference]: With dead ends: 5002 [2023-11-29 06:25:52,020 INFO L226 Difference]: Without dead ends: 5000 [2023-11-29 06:25:52,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=138, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:25:52,022 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 582 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:52,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [593 Valid, 846 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 06:25:52,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5000 states. [2023-11-29 06:25:52,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5000 to 4642. [2023-11-29 06:25:52,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4642 states, 4217 states have (on average 1.209627697415224) internal successors, (5101), 4242 states have internal predecessors, (5101), 392 states have call successors, (392), 7 states have call predecessors, (392), 7 states have return successors, (392), 392 states have call predecessors, (392), 392 states have call successors, (392) [2023-11-29 06:25:52,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4642 states to 4642 states and 5885 transitions. [2023-11-29 06:25:52,739 INFO L78 Accepts]: Start accepts. Automaton has 4642 states and 5885 transitions. Word has length 192 [2023-11-29 06:25:52,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:52,739 INFO L495 AbstractCegarLoop]: Abstraction has 4642 states and 5885 transitions. [2023-11-29 06:25:52,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 27.666666666666668) internal successors, (249), 10 states have internal predecessors, (249), 9 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) [2023-11-29 06:25:52,739 INFO L276 IsEmpty]: Start isEmpty. Operand 4642 states and 5885 transitions. [2023-11-29 06:25:52,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 06:25:52,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:52,741 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:52,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2023-11-29 06:25:52,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:52,942 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:25:52,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:52,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1113098451, now seen corresponding path program 8 times [2023-11-29 06:25:52,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:52,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428470775] [2023-11-29 06:25:52,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:52,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:52,951 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:52,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2051415449] [2023-11-29 06:25:52,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:25:52,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:52,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:52,952 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:52,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2023-11-29 06:25:53,028 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:25:53,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:25:53,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 06:25:53,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:25:53,884 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-11-29 06:25:53,884 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:25:53,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:53,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428470775] [2023-11-29 06:25:53,957 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:53,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051415449] [2023-11-29 06:25:53,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051415449] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:25:53,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:25:53,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:25:53,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584880979] [2023-11-29 06:25:53,958 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:25:53,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:25:53,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:53,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:25:53,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:25:53,959 INFO L87 Difference]: Start difference. First operand 4642 states and 5885 transitions. Second operand has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 10 states have internal predecessors, (134), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:25:55,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:55,423 INFO L93 Difference]: Finished difference Result 4646 states and 5885 transitions. [2023-11-29 06:25:55,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:25:55,424 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 10 states have internal predecessors, (134), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 198 [2023-11-29 06:25:55,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:55,428 INFO L225 Difference]: With dead ends: 4646 [2023-11-29 06:25:55,428 INFO L226 Difference]: Without dead ends: 4645 [2023-11-29 06:25:55,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:25:55,429 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 52 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:55,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 685 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:25:55,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4645 states. [2023-11-29 06:25:56,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4645 to 4642. [2023-11-29 06:25:56,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4642 states, 4217 states have (on average 1.2093905620109082) internal successors, (5100), 4242 states have internal predecessors, (5100), 392 states have call successors, (392), 7 states have call predecessors, (392), 7 states have return successors, (392), 392 states have call predecessors, (392), 392 states have call successors, (392) [2023-11-29 06:25:56,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4642 states to 4642 states and 5884 transitions. [2023-11-29 06:25:56,114 INFO L78 Accepts]: Start accepts. Automaton has 4642 states and 5884 transitions. Word has length 198 [2023-11-29 06:25:56,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:56,115 INFO L495 AbstractCegarLoop]: Abstraction has 4642 states and 5884 transitions. [2023-11-29 06:25:56,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 10 states have internal predecessors, (134), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:25:56,115 INFO L276 IsEmpty]: Start isEmpty. Operand 4642 states and 5884 transitions. [2023-11-29 06:25:56,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 06:25:56,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:56,117 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:56,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0 [2023-11-29 06:25:56,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:56,317 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:25:56,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:56,317 INFO L85 PathProgramCache]: Analyzing trace with hash 934397047, now seen corresponding path program 9 times [2023-11-29 06:25:56,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:56,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139303014] [2023-11-29 06:25:56,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:56,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:56,327 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:56,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1843533848] [2023-11-29 06:25:56,327 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:25:56,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:56,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:56,328 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:56,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2023-11-29 06:25:57,833 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 06:25:57,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:25:57,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 44 conjunts are in the unsatisfiable core [2023-11-29 06:25:57,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:02,914 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 57 proven. 180 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 06:26:02,914 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:26:03,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:03,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139303014] [2023-11-29 06:26:03,734 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:03,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843533848] [2023-11-29 06:26:03,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843533848] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:26:03,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:26:03,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2023-11-29 06:26:03,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500959259] [2023-11-29 06:26:03,734 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:26:03,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 06:26:03,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:03,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 06:26:03,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=505, Unknown=0, NotChecked=0, Total=600 [2023-11-29 06:26:03,735 INFO L87 Difference]: Start difference. First operand 4642 states and 5884 transitions. Second operand has 22 states, 19 states have (on average 6.0) internal successors, (114), 20 states have internal predecessors, (114), 6 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 06:26:10,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:26:17,183 WARN L539 Checker$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 06:26:18,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:26:24,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:26:31,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:31,426 INFO L93 Difference]: Finished difference Result 4771 states and 6001 transitions. [2023-11-29 06:26:31,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-29 06:26:31,427 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 6.0) internal successors, (114), 20 states have internal predecessors, (114), 6 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) Word has length 198 [2023-11-29 06:26:31,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:31,433 INFO L225 Difference]: With dead ends: 4771 [2023-11-29 06:26:31,433 INFO L226 Difference]: Without dead ends: 4760 [2023-11-29 06:26:31,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=170, Invalid=886, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 06:26:31,434 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 409 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 3356 mSolverCounterSat, 26 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 3388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3356 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:31,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 658 Invalid, 3388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3356 Invalid, 6 Unknown, 0 Unchecked, 23.8s Time] [2023-11-29 06:26:31,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4760 states. [2023-11-29 06:26:32,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4760 to 4680. [2023-11-29 06:26:32,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4680 states, 4250 states have (on average 1.2070588235294117) internal successors, (5130), 4275 states have internal predecessors, (5130), 397 states have call successors, (397), 7 states have call predecessors, (397), 7 states have return successors, (397), 397 states have call predecessors, (397), 397 states have call successors, (397) [2023-11-29 06:26:32,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4680 states to 4680 states and 5924 transitions. [2023-11-29 06:26:32,153 INFO L78 Accepts]: Start accepts. Automaton has 4680 states and 5924 transitions. Word has length 198 [2023-11-29 06:26:32,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:32,154 INFO L495 AbstractCegarLoop]: Abstraction has 4680 states and 5924 transitions. [2023-11-29 06:26:32,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 6.0) internal successors, (114), 20 states have internal predecessors, (114), 6 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 06:26:32,154 INFO L276 IsEmpty]: Start isEmpty. Operand 4680 states and 5924 transitions. [2023-11-29 06:26:32,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 06:26:32,155 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:32,155 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:32,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Ended with exit code 0 [2023-11-29 06:26:32,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:32,356 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:26:32,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:32,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1851481047, now seen corresponding path program 10 times [2023-11-29 06:26:32,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:32,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570151614] [2023-11-29 06:26:32,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:32,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:32,364 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:32,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [768205261] [2023-11-29 06:26:32,364 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 06:26:32,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:32,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:32,365 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:32,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2023-11-29 06:26:32,769 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 06:26:32,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:26:32,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 06:26:32,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:33,563 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-11-29 06:26:33,564 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:26:33,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:33,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570151614] [2023-11-29 06:26:33,792 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:33,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768205261] [2023-11-29 06:26:33,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768205261] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:26:33,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:26:33,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:26:33,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241793977] [2023-11-29 06:26:33,792 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:26:33,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:26:33,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:33,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:26:33,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:26:33,793 INFO L87 Difference]: Start difference. First operand 4680 states and 5924 transitions. Second operand has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 10 states have internal predecessors, (134), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:26:35,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:35,265 INFO L93 Difference]: Finished difference Result 4685 states and 5924 transitions. [2023-11-29 06:26:35,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:26:35,266 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 10 states have internal predecessors, (134), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 198 [2023-11-29 06:26:35,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:35,270 INFO L225 Difference]: With dead ends: 4685 [2023-11-29 06:26:35,270 INFO L226 Difference]: Without dead ends: 4684 [2023-11-29 06:26:35,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:26:35,271 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 53 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:35,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 796 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:26:35,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4684 states. [2023-11-29 06:26:35,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4684 to 4680. [2023-11-29 06:26:35,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4680 states, 4250 states have (on average 1.2068235294117646) internal successors, (5129), 4275 states have internal predecessors, (5129), 397 states have call successors, (397), 7 states have call predecessors, (397), 7 states have return successors, (397), 397 states have call predecessors, (397), 397 states have call successors, (397) [2023-11-29 06:26:35,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4680 states to 4680 states and 5923 transitions. [2023-11-29 06:26:35,998 INFO L78 Accepts]: Start accepts. Automaton has 4680 states and 5923 transitions. Word has length 198 [2023-11-29 06:26:35,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:35,999 INFO L495 AbstractCegarLoop]: Abstraction has 4680 states and 5923 transitions. [2023-11-29 06:26:35,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 10 states have internal predecessors, (134), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:26:35,999 INFO L276 IsEmpty]: Start isEmpty. Operand 4680 states and 5923 transitions. [2023-11-29 06:26:36,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 06:26:36,000 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:36,001 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:36,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Forceful destruction successful, exit code 0 [2023-11-29 06:26:36,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:36,201 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:26:36,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:36,201 INFO L85 PathProgramCache]: Analyzing trace with hash 2021506565, now seen corresponding path program 11 times [2023-11-29 06:26:36,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:36,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677549321] [2023-11-29 06:26:36,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:36,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:36,209 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:36,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [713796652] [2023-11-29 06:26:36,209 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 06:26:36,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:36,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:36,210 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:36,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2023-11-29 06:26:37,435 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2023-11-29 06:26:37,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:26:37,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-29 06:26:37,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:38,411 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 6 proven. 225 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 06:26:38,412 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:26:38,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:38,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677549321] [2023-11-29 06:26:38,536 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:38,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713796652] [2023-11-29 06:26:38,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713796652] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:26:38,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:26:38,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 06:26:38,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273087720] [2023-11-29 06:26:38,536 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:26:38,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 06:26:38,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:38,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 06:26:38,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:26:38,537 INFO L87 Difference]: Start difference. First operand 4680 states and 5923 transitions. Second operand has 15 states, 14 states have (on average 9.785714285714286) internal successors, (137), 15 states have internal predecessors, (137), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:26:40,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:40,371 INFO L93 Difference]: Finished difference Result 4688 states and 5927 transitions. [2023-11-29 06:26:40,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 06:26:40,372 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.785714285714286) internal successors, (137), 15 states have internal predecessors, (137), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 198 [2023-11-29 06:26:40,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:40,375 INFO L225 Difference]: With dead ends: 4688 [2023-11-29 06:26:40,375 INFO L226 Difference]: Without dead ends: 4687 [2023-11-29 06:26:40,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2023-11-29 06:26:40,376 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 68 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 1787 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 1791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:40,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 739 Invalid, 1791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1787 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:26:40,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4687 states. [2023-11-29 06:26:41,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4687 to 4680. [2023-11-29 06:26:41,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4680 states, 4250 states have (on average 1.2065882352941177) internal successors, (5128), 4275 states have internal predecessors, (5128), 397 states have call successors, (397), 7 states have call predecessors, (397), 7 states have return successors, (397), 397 states have call predecessors, (397), 397 states have call successors, (397) [2023-11-29 06:26:41,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4680 states to 4680 states and 5922 transitions. [2023-11-29 06:26:41,081 INFO L78 Accepts]: Start accepts. Automaton has 4680 states and 5922 transitions. Word has length 198 [2023-11-29 06:26:41,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:41,081 INFO L495 AbstractCegarLoop]: Abstraction has 4680 states and 5922 transitions. [2023-11-29 06:26:41,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.785714285714286) internal successors, (137), 15 states have internal predecessors, (137), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:26:41,081 INFO L276 IsEmpty]: Start isEmpty. Operand 4680 states and 5922 transitions. [2023-11-29 06:26:41,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 06:26:41,082 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:41,083 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:41,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Ended with exit code 0 [2023-11-29 06:26:41,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:41,283 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:26:41,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:41,283 INFO L85 PathProgramCache]: Analyzing trace with hash -46980269, now seen corresponding path program 12 times [2023-11-29 06:26:41,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:41,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487456448] [2023-11-29 06:26:41,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:41,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:41,292 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:41,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1796932248] [2023-11-29 06:26:41,293 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 06:26:41,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:41,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:41,294 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:41,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2023-11-29 06:26:42,374 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2023-11-29 06:26:42,374 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:26:42,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:26:42,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:42,558 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 18 proven. 87 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2023-11-29 06:26:42,558 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:26:43,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:43,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487456448] [2023-11-29 06:26:43,049 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:43,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796932248] [2023-11-29 06:26:43,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796932248] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:26:43,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:26:43,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 06:26:43,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433543051] [2023-11-29 06:26:43,050 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:26:43,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:26:43,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:43,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:26:43,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:26:43,051 INFO L87 Difference]: Start difference. First operand 4680 states and 5922 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:26:44,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:44,005 INFO L93 Difference]: Finished difference Result 4831 states and 6089 transitions. [2023-11-29 06:26:44,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:26:44,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 198 [2023-11-29 06:26:44,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:44,011 INFO L225 Difference]: With dead ends: 4831 [2023-11-29 06:26:44,011 INFO L226 Difference]: Without dead ends: 4829 [2023-11-29 06:26:44,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:26:44,012 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 127 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:44,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 265 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:26:44,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4829 states. [2023-11-29 06:26:44,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4829 to 4772. [2023-11-29 06:26:44,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4772 states, 4333 states have (on average 1.2042464804984998) internal successors, (5218), 4358 states have internal predecessors, (5218), 406 states have call successors, (406), 7 states have call predecessors, (406), 7 states have return successors, (406), 406 states have call predecessors, (406), 406 states have call successors, (406) [2023-11-29 06:26:44,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4772 states to 4772 states and 6030 transitions. [2023-11-29 06:26:44,763 INFO L78 Accepts]: Start accepts. Automaton has 4772 states and 6030 transitions. Word has length 198 [2023-11-29 06:26:44,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:44,763 INFO L495 AbstractCegarLoop]: Abstraction has 4772 states and 6030 transitions. [2023-11-29 06:26:44,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:26:44,763 INFO L276 IsEmpty]: Start isEmpty. Operand 4772 states and 6030 transitions. [2023-11-29 06:26:44,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 06:26:44,765 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:44,765 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:44,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Forceful destruction successful, exit code 0 [2023-11-29 06:26:44,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:44,965 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:26:44,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:44,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1462108933, now seen corresponding path program 13 times [2023-11-29 06:26:44,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:44,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059206077] [2023-11-29 06:26:44,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:44,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:44,976 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:44,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [817316665] [2023-11-29 06:26:44,977 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 06:26:44,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:44,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:44,978 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:44,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2023-11-29 06:26:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:45,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 06:26:45,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:46,523 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 27 proven. 171 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-11-29 06:26:46,523 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:26:46,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:46,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059206077] [2023-11-29 06:26:46,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:46,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817316665] [2023-11-29 06:26:46,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817316665] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:26:46,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:26:46,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 06:26:46,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236695209] [2023-11-29 06:26:46,776 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:26:46,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 06:26:46,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:46,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 06:26:46,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2023-11-29 06:26:46,777 INFO L87 Difference]: Start difference. First operand 4772 states and 6030 transitions. Second operand has 16 states, 15 states have (on average 8.933333333333334) internal successors, (134), 16 states have internal predecessors, (134), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 06:26:49,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:26:56,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:56,176 INFO L93 Difference]: Finished difference Result 4874 states and 6105 transitions. [2023-11-29 06:26:56,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:26:56,177 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.933333333333334) internal successors, (134), 16 states have internal predecessors, (134), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 198 [2023-11-29 06:26:56,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:56,181 INFO L225 Difference]: With dead ends: 4874 [2023-11-29 06:26:56,182 INFO L226 Difference]: Without dead ends: 4870 [2023-11-29 06:26:56,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2023-11-29 06:26:56,182 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 292 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 3672 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 3693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:56,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 969 Invalid, 3693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3672 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2023-11-29 06:26:56,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4870 states. [2023-11-29 06:26:56,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4870 to 4780. [2023-11-29 06:26:56,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4780 states, 4340 states have (on average 1.204147465437788) internal successors, (5226), 4365 states have internal predecessors, (5226), 407 states have call successors, (407), 7 states have call predecessors, (407), 7 states have return successors, (407), 407 states have call predecessors, (407), 407 states have call successors, (407) [2023-11-29 06:26:56,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4780 states to 4780 states and 6040 transitions. [2023-11-29 06:26:56,932 INFO L78 Accepts]: Start accepts. Automaton has 4780 states and 6040 transitions. Word has length 198 [2023-11-29 06:26:56,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:56,932 INFO L495 AbstractCegarLoop]: Abstraction has 4780 states and 6040 transitions. [2023-11-29 06:26:56,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.933333333333334) internal successors, (134), 16 states have internal predecessors, (134), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 06:26:56,932 INFO L276 IsEmpty]: Start isEmpty. Operand 4780 states and 6040 transitions. [2023-11-29 06:26:56,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 06:26:56,934 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:56,934 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:56,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Forceful destruction successful, exit code 0 [2023-11-29 06:26:57,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:57,134 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:26:57,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:57,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1040129249, now seen corresponding path program 14 times [2023-11-29 06:26:57,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:57,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876867173] [2023-11-29 06:26:57,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:57,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:57,142 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:57,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1394802214] [2023-11-29 06:26:57,143 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:26:57,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:57,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:57,144 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:57,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2023-11-29 06:26:57,214 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:26:57,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:26:57,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 06:26:57,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:58,826 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-11-29 06:26:58,826 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:26:59,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:59,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876867173] [2023-11-29 06:26:59,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:59,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394802214] [2023-11-29 06:26:59,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394802214] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:26:59,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:26:59,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 06:26:59,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511329927] [2023-11-29 06:26:59,057 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:26:59,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 06:26:59,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:59,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 06:26:59,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:26:59,058 INFO L87 Difference]: Start difference. First operand 4780 states and 6040 transitions. Second operand has 17 states, 16 states have (on average 8.375) internal successors, (134), 17 states have internal predecessors, (134), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 06:27:04,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:27:04,886 INFO L93 Difference]: Finished difference Result 4951 states and 6200 transitions. [2023-11-29 06:27:04,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 06:27:04,887 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 8.375) internal successors, (134), 17 states have internal predecessors, (134), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 198 [2023-11-29 06:27:04,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:27:04,891 INFO L225 Difference]: With dead ends: 4951 [2023-11-29 06:27:04,891 INFO L226 Difference]: Without dead ends: 4949 [2023-11-29 06:27:04,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2023-11-29 06:27:04,891 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 229 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 4716 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 4727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 4716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:27:04,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 1213 Invalid, 4727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 4716 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-11-29 06:27:04,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4949 states. [2023-11-29 06:27:05,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4949 to 4786. [2023-11-29 06:27:05,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4786 states, 4346 states have (on average 1.2040957202024851) internal successors, (5233), 4371 states have internal predecessors, (5233), 407 states have call successors, (407), 7 states have call predecessors, (407), 7 states have return successors, (407), 407 states have call predecessors, (407), 407 states have call successors, (407) [2023-11-29 06:27:05,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4786 states to 4786 states and 6047 transitions. [2023-11-29 06:27:05,658 INFO L78 Accepts]: Start accepts. Automaton has 4786 states and 6047 transitions. Word has length 198 [2023-11-29 06:27:05,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:27:05,658 INFO L495 AbstractCegarLoop]: Abstraction has 4786 states and 6047 transitions. [2023-11-29 06:27:05,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 8.375) internal successors, (134), 17 states have internal predecessors, (134), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 06:27:05,658 INFO L276 IsEmpty]: Start isEmpty. Operand 4786 states and 6047 transitions. [2023-11-29 06:27:05,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 06:27:05,660 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:27:05,660 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:27:05,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Forceful destruction successful, exit code 0 [2023-11-29 06:27:05,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable96 [2023-11-29 06:27:05,861 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:27:05,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:27:05,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1745748845, now seen corresponding path program 15 times [2023-11-29 06:27:05,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:27:05,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209775593] [2023-11-29 06:27:05,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:27:05,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:27:05,869 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:27:05,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [34120294] [2023-11-29 06:27:05,869 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:27:05,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:27:05,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:27:05,870 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:27:05,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2239566-157e-4c6f-8830-d13beec96a8a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2023-11-29 06:27:07,221 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 06:27:07,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:27:07,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 50 conjunts are in the unsatisfiable core [2023-11-29 06:27:07,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:27:17,776 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 82 proven. 180 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-11-29 06:27:17,776 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:28:41,466 WARN L293 SmtUtils]: Spent 8.96s on a formula simplification that was a NOOP. DAG size: 55 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:30:16,726 WARN L293 SmtUtils]: Spent 22.24s on a formula simplification that was a NOOP. DAG size: 59 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:30:24,379 WARN L293 SmtUtils]: Spent 5.02s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)