./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench/ps5-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/ps5-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme --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 1d0411df2a3b388d2db53c57aaa1f7219c19c9d74992ef1ed00eab4b9b56cbed --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:58:46,819 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:58:46,917 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 11:58:46,927 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:58:46,928 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:58:46,970 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:58:46,975 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:58:46,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:58:46,977 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:58:46,985 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:58:46,985 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:58:46,987 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:58:46,987 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:58:46,990 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:58:46,990 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:58:46,991 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:58:46,991 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:58:46,991 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:58:46,992 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:58:46,993 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:58:46,993 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:58:46,994 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:58:46,994 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:58:46,995 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:58:46,995 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:58:46,996 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:58:46,996 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:58:46,996 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:58:46,997 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:58:46,998 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:58:46,999 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:58:47,000 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:58:47,001 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:58:47,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:47,002 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:58:47,002 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:58:47,002 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:58:47,002 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:58:47,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:58:47,003 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:58:47,003 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:58:47,004 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:58:47,004 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:58:47,004 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:58:47,005 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_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d0411df2a3b388d2db53c57aaa1f7219c19c9d74992ef1ed00eab4b9b56cbed [2023-11-26 11:58:47,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:58:47,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:58:47,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:58:47,389 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:58:47,389 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:58:47,391 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/nla-digbench/ps5-ll.c [2023-11-26 11:58:50,593 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:58:50,796 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:58:50,796 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/sv-benchmarks/c/nla-digbench/ps5-ll.c [2023-11-26 11:58:50,804 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/data/c0c687c48/adcff5d5cde4475eaabcd120114a3e36/FLAG4563f1454 [2023-11-26 11:58:50,817 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/data/c0c687c48/adcff5d5cde4475eaabcd120114a3e36 [2023-11-26 11:58:50,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:58:50,821 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:58:50,823 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:50,823 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:58:50,829 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:58:50,829 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:50" (1/1) ... [2023-11-26 11:58:50,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f0aee00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:50, skipping insertion in model container [2023-11-26 11:58:50,831 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:50" (1/1) ... [2023-11-26 11:58:50,852 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:58:51,078 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:51,091 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:58:51,135 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:51,156 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:58:51,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:51 WrapperNode [2023-11-26 11:58:51,157 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:51,158 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:51,158 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:58:51,159 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:58:51,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:51" (1/1) ... [2023-11-26 11:58:51,193 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:51" (1/1) ... [2023-11-26 11:58:51,227 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 128 [2023-11-26 11:58:51,235 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:51,236 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:58:51,236 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:58:51,236 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:58:51,248 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:51" (1/1) ... [2023-11-26 11:58:51,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:51" (1/1) ... [2023-11-26 11:58:51,259 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:51" (1/1) ... [2023-11-26 11:58:51,281 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]. [2023-11-26 11:58:51,281 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:51" (1/1) ... [2023-11-26 11:58:51,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:51" (1/1) ... [2023-11-26 11:58:51,294 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:51" (1/1) ... [2023-11-26 11:58:51,299 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:51" (1/1) ... [2023-11-26 11:58:51,304 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:51" (1/1) ... [2023-11-26 11:58:51,310 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:51" (1/1) ... [2023-11-26 11:58:51,313 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:58:51,316 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:58:51,317 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:58:51,317 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:58:51,318 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:51" (1/1) ... [2023-11-26 11:58:51,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:51,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:51,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:51,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:58:51,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:58:51,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:58:51,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:58:51,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:58:51,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-26 11:58:51,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-26 11:58:51,485 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:58:51,487 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:58:52,232 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:58:52,270 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:58:52,271 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:58:52,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:52 BoogieIcfgContainer [2023-11-26 11:58:52,272 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:58:52,275 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:58:52,275 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:58:52,279 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:58:52,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:58:50" (1/3) ... [2023-11-26 11:58:52,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690e9da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:58:52, skipping insertion in model container [2023-11-26 11:58:52,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:51" (2/3) ... [2023-11-26 11:58:52,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690e9da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:58:52, skipping insertion in model container [2023-11-26 11:58:52,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:52" (3/3) ... [2023-11-26 11:58:52,283 INFO L112 eAbstractionObserver]: Analyzing ICFG ps5-ll.c [2023-11-26 11:58:52,304 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:58:52,305 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 84 error locations. [2023-11-26 11:58:52,364 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:58:52,370 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;@27807852, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:58:52,371 INFO L358 AbstractCegarLoop]: Starting to check reachability of 84 error locations. [2023-11-26 11:58:52,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 182 states, 93 states have (on average 1.956989247311828) internal successors, (182), 177 states have internal predecessors, (182), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:58:52,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-26 11:58:52,382 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:52,383 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-26 11:58:52,383 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 11:58:52,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:52,390 INFO L85 PathProgramCache]: Analyzing trace with hash 233809033, now seen corresponding path program 1 times [2023-11-26 11:58:52,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:52,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465949692] [2023-11-26 11:58:52,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:52,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:52,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:52,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:52,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:52,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465949692] [2023-11-26 11:58:52,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465949692] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:52,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:52,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:58:52,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940422270] [2023-11-26 11:58:52,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:52,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:58:52,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:52,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:58:52,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:58:52,582 INFO L87 Difference]: Start difference. First operand has 182 states, 93 states have (on average 1.956989247311828) internal successors, (182), 177 states have internal predecessors, (182), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:52,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:52,641 INFO L93 Difference]: Finished difference Result 349 states and 376 transitions. [2023-11-26 11:58:52,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:58:52,644 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-26 11:58:52,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:52,653 INFO L225 Difference]: With dead ends: 349 [2023-11-26 11:58:52,653 INFO L226 Difference]: Without dead ends: 166 [2023-11-26 11:58:52,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:58:52,661 INFO L413 NwaCegarLoop]: 169 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, 169 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 [2023-11-26 11:58:52,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 169 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:58:52,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-11-26 11:58:52,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2023-11-26 11:58:52,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 92 states have (on average 1.7717391304347827) internal successors, (163), 162 states have internal predecessors, (163), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:58:52,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 167 transitions. [2023-11-26 11:58:52,722 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 167 transitions. Word has length 5 [2023-11-26 11:58:52,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:52,722 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 167 transitions. [2023-11-26 11:58:52,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:52,723 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 167 transitions. [2023-11-26 11:58:52,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-26 11:58:52,724 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:52,724 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-26 11:58:52,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:58:52,725 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 11:58:52,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:52,726 INFO L85 PathProgramCache]: Analyzing trace with hash 233868576, now seen corresponding path program 1 times [2023-11-26 11:58:52,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:52,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687769821] [2023-11-26 11:58:52,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:52,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:52,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:52,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:52,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687769821] [2023-11-26 11:58:52,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687769821] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:52,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:52,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:58:52,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716586338] [2023-11-26 11:58:52,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:52,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:58:52,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:52,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:58:52,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:52,827 INFO L87 Difference]: Start difference. First operand 166 states and 167 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:53,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:53,378 INFO L93 Difference]: Finished difference Result 311 states and 314 transitions. [2023-11-26 11:58:53,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:53,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-26 11:58:53,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:53,382 INFO L225 Difference]: With dead ends: 311 [2023-11-26 11:58:53,382 INFO L226 Difference]: Without dead ends: 255 [2023-11-26 11:58:53,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:53,389 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 90 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:53,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 112 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 11:58:53,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-11-26 11:58:53,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 241. [2023-11-26 11:58:53,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 166 states have (on average 1.5120481927710843) internal successors, (251), 236 states have internal predecessors, (251), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:58:53,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 257 transitions. [2023-11-26 11:58:53,437 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 257 transitions. Word has length 5 [2023-11-26 11:58:53,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:53,438 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 257 transitions. [2023-11-26 11:58:53,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:53,439 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 257 transitions. [2023-11-26 11:58:53,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-26 11:58:53,442 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:53,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:53,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:58:53,443 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 11:58:53,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:53,444 INFO L85 PathProgramCache]: Analyzing trace with hash -159584196, now seen corresponding path program 1 times [2023-11-26 11:58:53,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:53,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425577818] [2023-11-26 11:58:53,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:53,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:53,482 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:53,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1352565133] [2023-11-26 11:58:53,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:53,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:53,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:53,500 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:53,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:58:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:53,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:58:53,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:53,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:53,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:53,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:53,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425577818] [2023-11-26 11:58:53,730 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:53,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352565133] [2023-11-26 11:58:53,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352565133] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:53,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:53,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:58:53,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753377758] [2023-11-26 11:58:53,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:53,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:58:53,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:53,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:58:53,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:53,738 INFO L87 Difference]: Start difference. First operand 241 states and 257 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:53,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:53,803 INFO L93 Difference]: Finished difference Result 241 states and 257 transitions. [2023-11-26 11:58:53,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:53,805 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2023-11-26 11:58:53,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:53,817 INFO L225 Difference]: With dead ends: 241 [2023-11-26 11:58:53,817 INFO L226 Difference]: Without dead ends: 238 [2023-11-26 11:58:53,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:53,819 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 124 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:53,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 144 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:58:53,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-11-26 11:58:53,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2023-11-26 11:58:53,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 166 states have (on average 1.4819277108433735) internal successors, (246), 233 states have internal predecessors, (246), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:58:53,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 252 transitions. [2023-11-26 11:58:53,835 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 252 transitions. Word has length 33 [2023-11-26 11:58:53,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:53,836 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 252 transitions. [2023-11-26 11:58:53,836 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:53,836 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 252 transitions. [2023-11-26 11:58:53,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-26 11:58:53,837 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:53,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:53,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:54,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:54,044 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 11:58:54,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:54,045 INFO L85 PathProgramCache]: Analyzing trace with hash -652142672, now seen corresponding path program 1 times [2023-11-26 11:58:54,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:54,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387898757] [2023-11-26 11:58:54,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:54,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:54,062 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:54,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [888587263] [2023-11-26 11:58:54,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:54,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:54,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:54,064 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:54,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:58:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:54,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:58:54,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:54,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:54,183 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:54,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:54,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387898757] [2023-11-26 11:58:54,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:54,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888587263] [2023-11-26 11:58:54,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888587263] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:54,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:54,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:58:54,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492579969] [2023-11-26 11:58:54,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:54,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:58:54,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:54,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:58:54,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:54,186 INFO L87 Difference]: Start difference. First operand 238 states and 252 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:54,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:54,297 INFO L93 Difference]: Finished difference Result 263 states and 265 transitions. [2023-11-26 11:58:54,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:54,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-11-26 11:58:54,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:54,300 INFO L225 Difference]: With dead ends: 263 [2023-11-26 11:58:54,300 INFO L226 Difference]: Without dead ends: 261 [2023-11-26 11:58:54,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:54,301 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 66 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:54,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 278 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:58:54,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-11-26 11:58:54,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 238. [2023-11-26 11:58:54,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 166 states have (on average 1.4698795180722892) internal successors, (244), 233 states have internal predecessors, (244), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:58:54,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 250 transitions. [2023-11-26 11:58:54,325 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 250 transitions. Word has length 34 [2023-11-26 11:58:54,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:54,326 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 250 transitions. [2023-11-26 11:58:54,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:54,326 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 250 transitions. [2023-11-26 11:58:54,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-26 11:58:54,327 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:54,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:54,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:54,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-26 11:58:54,541 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 11:58:54,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:54,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1258413758, now seen corresponding path program 1 times [2023-11-26 11:58:54,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:54,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673458845] [2023-11-26 11:58:54,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:54,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:54,559 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:54,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1883417325] [2023-11-26 11:58:54,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:54,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:54,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:54,562 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:54,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:58:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:54,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:58:54,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:54,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:54,732 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:54,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:54,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673458845] [2023-11-26 11:58:54,732 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:54,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883417325] [2023-11-26 11:58:54,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883417325] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:54,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:54,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:58:54,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416127522] [2023-11-26 11:58:54,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:54,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:58:54,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:54,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:58:54,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:54,735 INFO L87 Difference]: Start difference. First operand 238 states and 250 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:54,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:54,948 INFO L93 Difference]: Finished difference Result 261 states and 263 transitions. [2023-11-26 11:58:54,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:54,948 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2023-11-26 11:58:54,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:54,950 INFO L225 Difference]: With dead ends: 261 [2023-11-26 11:58:54,950 INFO L226 Difference]: Without dead ends: 256 [2023-11-26 11:58:54,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:54,952 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 146 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:54,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 215 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:58:54,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-11-26 11:58:54,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 241. [2023-11-26 11:58:54,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 169 states have (on average 1.4437869822485208) internal successors, (244), 236 states have internal predecessors, (244), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:58:54,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 250 transitions. [2023-11-26 11:58:54,965 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 250 transitions. Word has length 35 [2023-11-26 11:58:54,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:54,965 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 250 transitions. [2023-11-26 11:58:54,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:54,966 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 250 transitions. [2023-11-26 11:58:54,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-26 11:58:54,967 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:54,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:54,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:55,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:55,177 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 11:58:55,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:55,177 INFO L85 PathProgramCache]: Analyzing trace with hash 356120946, now seen corresponding path program 1 times [2023-11-26 11:58:55,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:55,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452620834] [2023-11-26 11:58:55,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:55,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:55,194 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:55,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1687753919] [2023-11-26 11:58:55,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:55,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:55,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:55,198 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:55,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:58:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:55,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:58:55,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:55,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:55,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:55,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:55,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452620834] [2023-11-26 11:58:55,389 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:55,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687753919] [2023-11-26 11:58:55,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687753919] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:55,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:55,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:58:55,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287245814] [2023-11-26 11:58:55,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:55,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:58:55,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:55,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:58:55,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:55,392 INFO L87 Difference]: Start difference. First operand 241 states and 250 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:55,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:55,739 INFO L93 Difference]: Finished difference Result 241 states and 250 transitions. [2023-11-26 11:58:55,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:58:55,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2023-11-26 11:58:55,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:55,741 INFO L225 Difference]: With dead ends: 241 [2023-11-26 11:58:55,741 INFO L226 Difference]: Without dead ends: 187 [2023-11-26 11:58:55,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:55,743 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 125 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:55,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 47 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:58:55,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-11-26 11:58:55,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2023-11-26 11:58:55,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 135 states have (on average 1.3777777777777778) internal successors, (186), 182 states have internal predecessors, (186), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:58:55,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 192 transitions. [2023-11-26 11:58:55,755 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 192 transitions. Word has length 36 [2023-11-26 11:58:55,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:55,755 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 192 transitions. [2023-11-26 11:58:55,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:55,756 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 192 transitions. [2023-11-26 11:58:55,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-26 11:58:55,757 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:55,757 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:55,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:55,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:55,963 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 11:58:55,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:55,963 INFO L85 PathProgramCache]: Analyzing trace with hash 271536621, now seen corresponding path program 1 times [2023-11-26 11:58:55,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:55,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430794364] [2023-11-26 11:58:55,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:55,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:55,981 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:55,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [308100596] [2023-11-26 11:58:55,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:55,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:55,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:55,989 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:56,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:58:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:56,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:58:56,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:56,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:56,120 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:56,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:56,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430794364] [2023-11-26 11:58:56,120 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:56,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308100596] [2023-11-26 11:58:56,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308100596] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:56,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:56,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:58:56,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400259567] [2023-11-26 11:58:56,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:56,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:58:56,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:56,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:58:56,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:56,123 INFO L87 Difference]: Start difference. First operand 187 states and 192 transitions. Second operand has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:58:56,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:56,139 INFO L93 Difference]: Finished difference Result 187 states and 192 transitions. [2023-11-26 11:58:56,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:56,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2023-11-26 11:58:56,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:56,141 INFO L225 Difference]: With dead ends: 187 [2023-11-26 11:58:56,141 INFO L226 Difference]: Without dead ends: 186 [2023-11-26 11:58:56,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:56,143 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 96 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:56,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 143 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:58:56,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-11-26 11:58:56,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2023-11-26 11:58:56,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 135 states have (on average 1.362962962962963) internal successors, (184), 181 states have internal predecessors, (184), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:58:56,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 190 transitions. [2023-11-26 11:58:56,154 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 190 transitions. Word has length 45 [2023-11-26 11:58:56,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:56,155 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 190 transitions. [2023-11-26 11:58:56,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:58:56,156 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 190 transitions. [2023-11-26 11:58:56,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-26 11:58:56,156 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:56,157 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:56,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:56,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:56,363 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 11:58:56,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:56,363 INFO L85 PathProgramCache]: Analyzing trace with hash -172299215, now seen corresponding path program 1 times [2023-11-26 11:58:56,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:56,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400058448] [2023-11-26 11:58:56,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:56,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:56,376 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:56,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [563443914] [2023-11-26 11:58:56,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:56,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:56,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:56,378 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:56,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 11:58:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:56,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:58:56,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:56,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:56,501 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:56,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:56,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400058448] [2023-11-26 11:58:56,503 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:56,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563443914] [2023-11-26 11:58:56,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563443914] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:56,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:56,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:58:56,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162829677] [2023-11-26 11:58:56,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:56,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:58:56,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:56,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:58:56,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:56,505 INFO L87 Difference]: Start difference. First operand 186 states and 190 transitions. Second operand has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:58:56,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:56,524 INFO L93 Difference]: Finished difference Result 187 states and 190 transitions. [2023-11-26 11:58:56,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:56,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2023-11-26 11:58:56,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:56,528 INFO L225 Difference]: With dead ends: 187 [2023-11-26 11:58:56,528 INFO L226 Difference]: Without dead ends: 186 [2023-11-26 11:58:56,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:56,530 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:56,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 275 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:58:56,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-11-26 11:58:56,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2023-11-26 11:58:56,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 135 states have (on average 1.3555555555555556) internal successors, (183), 181 states have internal predecessors, (183), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:58:56,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 189 transitions. [2023-11-26 11:58:56,541 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 189 transitions. Word has length 46 [2023-11-26 11:58:56,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:56,542 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 189 transitions. [2023-11-26 11:58:56,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:58:56,542 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 189 transitions. [2023-11-26 11:58:56,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-26 11:58:56,548 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:56,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:56,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:56,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:56,762 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 11:58:56,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:56,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1991011403, now seen corresponding path program 1 times [2023-11-26 11:58:56,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:56,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2541191] [2023-11-26 11:58:56,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:56,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:56,786 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:56,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [314999087] [2023-11-26 11:58:56,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:56,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:56,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:56,788 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:56,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 11:58:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:56,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:58:56,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:56,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:56,941 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:56,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:56,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2541191] [2023-11-26 11:58:56,941 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:56,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314999087] [2023-11-26 11:58:56,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314999087] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:56,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:56,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:58:56,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023188954] [2023-11-26 11:58:56,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:56,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:58:56,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:56,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:58:56,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:56,944 INFO L87 Difference]: Start difference. First operand 186 states and 189 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:58:57,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:57,377 INFO L93 Difference]: Finished difference Result 317 states and 321 transitions. [2023-11-26 11:58:57,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:58:57,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2023-11-26 11:58:57,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:57,380 INFO L225 Difference]: With dead ends: 317 [2023-11-26 11:58:57,380 INFO L226 Difference]: Without dead ends: 279 [2023-11-26 11:58:57,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:57,381 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 94 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:57,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 105 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 11:58:57,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2023-11-26 11:58:57,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 268. [2023-11-26 11:58:57,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 215 states have (on average 1.2651162790697674) internal successors, (272), 261 states have internal predecessors, (272), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-26 11:58:57,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 282 transitions. [2023-11-26 11:58:57,396 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 282 transitions. Word has length 50 [2023-11-26 11:58:57,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:57,397 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 282 transitions. [2023-11-26 11:58:57,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:58:57,397 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 282 transitions. [2023-11-26 11:58:57,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-26 11:58:57,398 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:57,398 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:57,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:57,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:57,604 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 11:58:57,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:57,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1982938373, now seen corresponding path program 1 times [2023-11-26 11:58:57,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:57,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491153263] [2023-11-26 11:58:57,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:57,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:57,621 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:57,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [464012726] [2023-11-26 11:58:57,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:57,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:57,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:57,623 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:57,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 11:58:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:57,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:58:57,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:57,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:57,772 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:57,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:57,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491153263] [2023-11-26 11:58:57,773 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:57,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464012726] [2023-11-26 11:58:57,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464012726] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:57,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:57,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:58:57,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088059009] [2023-11-26 11:58:57,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:57,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:58:57,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:57,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:58:57,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:57,778 INFO L87 Difference]: Start difference. First operand 268 states and 282 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:58:57,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:57,878 INFO L93 Difference]: Finished difference Result 269 states and 282 transitions. [2023-11-26 11:58:57,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:58:57,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2023-11-26 11:58:57,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:57,881 INFO L225 Difference]: With dead ends: 269 [2023-11-26 11:58:57,881 INFO L226 Difference]: Without dead ends: 268 [2023-11-26 11:58:57,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:57,882 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 39 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:57,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 224 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:58:57,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-11-26 11:58:57,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2023-11-26 11:58:57,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 215 states have (on average 1.2604651162790699) internal successors, (271), 261 states have internal predecessors, (271), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-26 11:58:57,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 281 transitions. [2023-11-26 11:58:57,898 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 281 transitions. Word has length 56 [2023-11-26 11:58:57,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:57,899 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 281 transitions. [2023-11-26 11:58:57,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:58:57,899 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 281 transitions. [2023-11-26 11:58:57,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-26 11:58:57,901 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:57,901 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2023-11-26 11:58:57,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:58,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-26 11:58:58,107 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 11:58:58,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:58,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1837383757, now seen corresponding path program 1 times [2023-11-26 11:58:58,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:58,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531815078] [2023-11-26 11:58:58,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:58,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:58,131 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:58,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2125305636] [2023-11-26 11:58:58,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:58,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:58,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:58,133 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:58,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 11:58:58,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:58,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 11:58:58,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:58,499 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:58,499 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:58:58,761 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:58,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:58,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531815078] [2023-11-26 11:58:58,761 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:58,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125305636] [2023-11-26 11:58:58,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125305636] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:58:58,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:58:58,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-26 11:58:58,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308104096] [2023-11-26 11:58:58,763 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:58:58,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:58:58,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:58,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:58:58,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:58:58,765 INFO L87 Difference]: Start difference. First operand 268 states and 281 transitions. Second operand has 8 states, 7 states have (on average 23.571428571428573) internal successors, (165), 8 states have internal predecessors, (165), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:58:59,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:59,621 INFO L93 Difference]: Finished difference Result 338 states and 344 transitions. [2023-11-26 11:58:59,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:58:59,622 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.571428571428573) internal successors, (165), 8 states have internal predecessors, (165), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 87 [2023-11-26 11:58:59,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:59,625 INFO L225 Difference]: With dead ends: 338 [2023-11-26 11:58:59,625 INFO L226 Difference]: Without dead ends: 335 [2023-11-26 11:58:59,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:58:59,626 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 296 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:59,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 257 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 11:58:59,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2023-11-26 11:58:59,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 307. [2023-11-26 11:58:59,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 255 states have (on average 1.2901960784313726) internal successors, (329), 300 states have internal predecessors, (329), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-26 11:58:59,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 339 transitions. [2023-11-26 11:58:59,644 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 339 transitions. Word has length 87 [2023-11-26 11:58:59,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:59,645 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 339 transitions. [2023-11-26 11:58:59,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.571428571428573) internal successors, (165), 8 states have internal predecessors, (165), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:58:59,645 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 339 transitions. [2023-11-26 11:58:59,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-26 11:58:59,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:59,646 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:59,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:59,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-26 11:58:59,852 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 11:58:59,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:59,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1124321509, now seen corresponding path program 1 times [2023-11-26 11:58:59,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:59,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061076264] [2023-11-26 11:58:59,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:59,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:59,866 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:59,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [676286967] [2023-11-26 11:58:59,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:59,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:59,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:59,868 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:59,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-26 11:58:59,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:59,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:58:59,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:01,016 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:01,016 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:01,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:01,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061076264] [2023-11-26 11:59:01,875 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:01,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676286967] [2023-11-26 11:59:01,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676286967] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:01,875 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:59:01,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-26 11:59:01,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842828879] [2023-11-26 11:59:01,876 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:01,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:59:01,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:01,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:59:01,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:59:01,878 INFO L87 Difference]: Start difference. First operand 307 states and 339 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:59:02,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:02,862 INFO L93 Difference]: Finished difference Result 318 states and 339 transitions. [2023-11-26 11:59:02,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:59:02,862 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2023-11-26 11:59:02,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:02,864 INFO L225 Difference]: With dead ends: 318 [2023-11-26 11:59:02,865 INFO L226 Difference]: Without dead ends: 313 [2023-11-26 11:59:02,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:59:02,866 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 86 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:02,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 122 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:59:02,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-11-26 11:59:02,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 307. [2023-11-26 11:59:02,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 255 states have (on average 1.2705882352941176) internal successors, (324), 300 states have internal predecessors, (324), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-26 11:59:02,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 334 transitions. [2023-11-26 11:59:02,884 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 334 transitions. Word has length 88 [2023-11-26 11:59:02,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:02,884 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 334 transitions. [2023-11-26 11:59:02,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:59:02,884 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 334 transitions. [2023-11-26 11:59:02,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-26 11:59:02,890 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:02,890 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-26 11:59:02,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:03,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-26 11:59:03,097 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 11:59:03,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:03,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1071818676, now seen corresponding path program 1 times [2023-11-26 11:59:03,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:03,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576962897] [2023-11-26 11:59:03,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:03,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:03,122 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:03,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1354997279] [2023-11-26 11:59:03,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:03,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:03,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:03,135 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:03,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-26 11:59:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:03,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:59:03,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:03,325 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:59:03,325 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:03,447 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:59:03,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:03,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576962897] [2023-11-26 11:59:03,447 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:03,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354997279] [2023-11-26 11:59:03,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354997279] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:59:03,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:59:03,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-26 11:59:03,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430047804] [2023-11-26 11:59:03,448 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:03,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:59:03,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:03,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:59:03,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:59:03,451 INFO L87 Difference]: Start difference. First operand 307 states and 334 transitions. Second operand has 6 states, 5 states have (on average 35.8) internal successors, (179), 6 states have internal predecessors, (179), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 11:59:03,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:03,519 INFO L93 Difference]: Finished difference Result 531 states and 541 transitions. [2023-11-26 11:59:03,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:59:03,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 35.8) internal successors, (179), 6 states have internal predecessors, (179), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 99 [2023-11-26 11:59:03,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:03,523 INFO L225 Difference]: With dead ends: 531 [2023-11-26 11:59:03,524 INFO L226 Difference]: Without dead ends: 530 [2023-11-26 11:59:03,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:59:03,525 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 365 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:03,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 645 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:59:03,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2023-11-26 11:59:03,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 364. [2023-11-26 11:59:03,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 310 states have (on average 1.3161290322580645) internal successors, (408), 355 states have internal predecessors, (408), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 11:59:03,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 422 transitions. [2023-11-26 11:59:03,545 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 422 transitions. Word has length 99 [2023-11-26 11:59:03,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:03,545 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 422 transitions. [2023-11-26 11:59:03,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 35.8) internal successors, (179), 6 states have internal predecessors, (179), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 11:59:03,546 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 422 transitions. [2023-11-26 11:59:03,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-26 11:59:03,548 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:03,549 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-26 11:59:03,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:03,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-26 11:59:03,755 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 11:59:03,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:03,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1168386632, now seen corresponding path program 1 times [2023-11-26 11:59:03,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:03,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585204501] [2023-11-26 11:59:03,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:03,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:03,780 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:03,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1907183393] [2023-11-26 11:59:03,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:03,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:03,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:03,793 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:03,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-26 11:59:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:03,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 11:59:03,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:04,015 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:59:04,015 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:04,292 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:59:04,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:04,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585204501] [2023-11-26 11:59:04,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:04,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907183393] [2023-11-26 11:59:04,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907183393] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:59:04,293 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:59:04,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-26 11:59:04,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924304623] [2023-11-26 11:59:04,295 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:04,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:59:04,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:04,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:59:04,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:59:04,297 INFO L87 Difference]: Start difference. First operand 364 states and 422 transitions. Second operand has 8 states, 7 states have (on average 26.714285714285715) internal successors, (187), 8 states have internal predecessors, (187), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 11:59:05,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:05,063 INFO L93 Difference]: Finished difference Result 438 states and 480 transitions. [2023-11-26 11:59:05,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:59:05,064 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 26.714285714285715) internal successors, (187), 8 states have internal predecessors, (187), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 103 [2023-11-26 11:59:05,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:05,066 INFO L225 Difference]: With dead ends: 438 [2023-11-26 11:59:05,066 INFO L226 Difference]: Without dead ends: 398 [2023-11-26 11:59:05,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:59:05,068 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 487 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:05,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 140 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 11:59:05,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-11-26 11:59:05,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 375. [2023-11-26 11:59:05,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 332 states have (on average 1.1837349397590362) internal successors, (393), 367 states have internal predecessors, (393), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:59:05,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 405 transitions. [2023-11-26 11:59:05,087 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 405 transitions. Word has length 103 [2023-11-26 11:59:05,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:05,087 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 405 transitions. [2023-11-26 11:59:05,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 26.714285714285715) internal successors, (187), 8 states have internal predecessors, (187), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 11:59:05,088 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 405 transitions. [2023-11-26 11:59:05,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-26 11:59:05,089 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:05,090 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:05,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:05,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-26 11:59:05,295 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 11:59:05,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:05,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1311328693, now seen corresponding path program 1 times [2023-11-26 11:59:05,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:05,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163928700] [2023-11-26 11:59:05,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:05,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:05,316 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:05,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [828973323] [2023-11-26 11:59:05,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:05,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:05,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:05,318 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:05,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-26 11:59:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:05,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:59:05,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:05,993 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:59:05,993 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:06,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:06,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163928700] [2023-11-26 11:59:06,456 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:06,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828973323] [2023-11-26 11:59:06,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828973323] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:06,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:59:06,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-26 11:59:06,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021963898] [2023-11-26 11:59:06,457 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:06,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:59:06,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:06,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:59:06,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:59:06,459 INFO L87 Difference]: Start difference. First operand 375 states and 405 transitions. Second operand has 7 states, 6 states have (on average 20.833333333333332) internal successors, (125), 7 states have internal predecessors, (125), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:59:07,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:07,017 INFO L93 Difference]: Finished difference Result 381 states and 411 transitions. [2023-11-26 11:59:07,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:59:07,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.833333333333332) internal successors, (125), 7 states have internal predecessors, (125), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 137 [2023-11-26 11:59:07,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:07,021 INFO L225 Difference]: With dead ends: 381 [2023-11-26 11:59:07,021 INFO L226 Difference]: Without dead ends: 380 [2023-11-26 11:59:07,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:59:07,022 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 80 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:07,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 115 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 11:59:07,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-11-26 11:59:07,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 378. [2023-11-26 11:59:07,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 334 states have (on average 1.1826347305389222) internal successors, (395), 369 states have internal predecessors, (395), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 11:59:07,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 409 transitions. [2023-11-26 11:59:07,043 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 409 transitions. Word has length 137 [2023-11-26 11:59:07,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:07,043 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 409 transitions. [2023-11-26 11:59:07,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.833333333333332) internal successors, (125), 7 states have internal predecessors, (125), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:59:07,044 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 409 transitions. [2023-11-26 11:59:07,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-26 11:59:07,046 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:07,046 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:07,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:07,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-26 11:59:07,252 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr81ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 11:59:07,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:07,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1996483597, now seen corresponding path program 1 times [2023-11-26 11:59:07,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:07,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872719850] [2023-11-26 11:59:07,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:07,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:07,268 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:07,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1646589666] [2023-11-26 11:59:07,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:07,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:07,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:07,270 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:07,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-26 11:59:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:07,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:59:07,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:07,955 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:59:07,955 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:08,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:08,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872719850] [2023-11-26 11:59:08,456 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:08,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646589666] [2023-11-26 11:59:08,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646589666] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:08,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:59:08,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-26 11:59:08,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078283421] [2023-11-26 11:59:08,456 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:08,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:59:08,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:08,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:59:08,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:59:08,458 INFO L87 Difference]: Start difference. First operand 378 states and 409 transitions. Second operand has 7 states, 6 states have (on average 21.0) internal successors, (126), 7 states have internal predecessors, (126), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:59:08,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:08,971 INFO L93 Difference]: Finished difference Result 380 states and 410 transitions. [2023-11-26 11:59:08,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:59:08,972 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.0) internal successors, (126), 7 states have internal predecessors, (126), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 138 [2023-11-26 11:59:08,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:08,974 INFO L225 Difference]: With dead ends: 380 [2023-11-26 11:59:08,974 INFO L226 Difference]: Without dead ends: 342 [2023-11-26 11:59:08,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:59:08,975 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 38 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:08,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 108 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 11:59:08,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2023-11-26 11:59:08,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2023-11-26 11:59:08,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 299 states have (on average 1.2006688963210703) internal successors, (359), 334 states have internal predecessors, (359), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:59:08,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 371 transitions. [2023-11-26 11:59:08,992 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 371 transitions. Word has length 138 [2023-11-26 11:59:08,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:08,993 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 371 transitions. [2023-11-26 11:59:08,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.0) internal successors, (126), 7 states have internal predecessors, (126), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:59:08,993 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 371 transitions. [2023-11-26 11:59:08,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-26 11:59:08,995 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:08,995 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-26 11:59:09,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:09,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-26 11:59:09,205 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 11:59:09,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:09,205 INFO L85 PathProgramCache]: Analyzing trace with hash -2100961570, now seen corresponding path program 2 times [2023-11-26 11:59:09,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:09,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182701084] [2023-11-26 11:59:09,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:09,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:09,220 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:09,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [975669273] [2023-11-26 11:59:09,220 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:59:09,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:09,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:09,222 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:09,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-26 11:59:09,352 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:59:09,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:59:09,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 11:59:09,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:09,662 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:59:09,662 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:09,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:09,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182701084] [2023-11-26 11:59:09,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:09,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975669273] [2023-11-26 11:59:09,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975669273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:09,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:09,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:59:09,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29910152] [2023-11-26 11:59:09,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:09,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:59:09,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:09,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:59:09,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:59:09,666 INFO L87 Difference]: Start difference. First operand 342 states and 371 transitions. Second operand has 7 states, 6 states have (on average 22.333333333333332) internal successors, (134), 7 states have internal predecessors, (134), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:59:10,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:10,012 INFO L93 Difference]: Finished difference Result 342 states and 371 transitions. [2023-11-26 11:59:10,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:59:10,013 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 22.333333333333332) internal successors, (134), 7 states have internal predecessors, (134), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 141 [2023-11-26 11:59:10,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:10,016 INFO L225 Difference]: With dead ends: 342 [2023-11-26 11:59:10,016 INFO L226 Difference]: Without dead ends: 325 [2023-11-26 11:59:10,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:59:10,017 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 165 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:10,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 62 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:59:10,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-11-26 11:59:10,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 322. [2023-11-26 11:59:10,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 296 states have (on average 1.1081081081081081) internal successors, (328), 314 states have internal predecessors, (328), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:59:10,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 340 transitions. [2023-11-26 11:59:10,053 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 340 transitions. Word has length 141 [2023-11-26 11:59:10,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:10,054 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 340 transitions. [2023-11-26 11:59:10,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 22.333333333333332) internal successors, (134), 7 states have internal predecessors, (134), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:59:10,054 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 340 transitions. [2023-11-26 11:59:10,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-26 11:59:10,056 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:10,057 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-26 11:59:10,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:10,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-26 11:59:10,263 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 11:59:10,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:10,263 INFO L85 PathProgramCache]: Analyzing trace with hash -575287465, now seen corresponding path program 1 times [2023-11-26 11:59:10,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:10,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292869917] [2023-11-26 11:59:10,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:10,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:10,279 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:10,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [34475095] [2023-11-26 11:59:10,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:10,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:10,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:10,281 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:10,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-26 11:59:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:10,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:59:10,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:10,580 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 139 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:59:10,581 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:10,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:10,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292869917] [2023-11-26 11:59:10,668 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:10,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34475095] [2023-11-26 11:59:10,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34475095] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:10,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:59:10,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-26 11:59:10,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036962915] [2023-11-26 11:59:10,668 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:10,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:59:10,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:10,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:59:10,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:59:10,670 INFO L87 Difference]: Start difference. First operand 322 states and 340 transitions. Second operand has 6 states, 5 states have (on average 29.2) internal successors, (146), 6 states have internal predecessors, (146), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:59:11,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:11,216 INFO L93 Difference]: Finished difference Result 394 states and 401 transitions. [2023-11-26 11:59:11,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:59:11,217 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 29.2) internal successors, (146), 6 states have internal predecessors, (146), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 158 [2023-11-26 11:59:11,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:11,219 INFO L225 Difference]: With dead ends: 394 [2023-11-26 11:59:11,219 INFO L226 Difference]: Without dead ends: 391 [2023-11-26 11:59:11,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:59:11,220 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 122 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:11,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 82 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 11:59:11,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2023-11-26 11:59:11,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 322. [2023-11-26 11:59:11,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 296 states have (on average 1.097972972972973) internal successors, (325), 314 states have internal predecessors, (325), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:59:11,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 337 transitions. [2023-11-26 11:59:11,237 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 337 transitions. Word has length 158 [2023-11-26 11:59:11,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:11,238 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 337 transitions. [2023-11-26 11:59:11,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 29.2) internal successors, (146), 6 states have internal predecessors, (146), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:59:11,238 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 337 transitions. [2023-11-26 11:59:11,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-26 11:59:11,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:11,240 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-26 11:59:11,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:11,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-26 11:59:11,446 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 11:59:11,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:11,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1199531801, now seen corresponding path program 1 times [2023-11-26 11:59:11,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:11,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673112470] [2023-11-26 11:59:11,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:11,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:11,467 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:11,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1162303834] [2023-11-26 11:59:11,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:11,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:11,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:11,469 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:11,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-26 11:59:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:11,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 11:59:11,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:11,982 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:59:11,982 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:12,538 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:59:12,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:12,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673112470] [2023-11-26 11:59:12,538 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:12,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162303834] [2023-11-26 11:59:12,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162303834] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:59:12,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:59:12,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-26 11:59:12,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641421391] [2023-11-26 11:59:12,539 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:12,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 11:59:12,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:12,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 11:59:12,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:59:12,541 INFO L87 Difference]: Start difference. First operand 322 states and 337 transitions. Second operand has 10 states, 9 states have (on average 32.333333333333336) internal successors, (291), 10 states have internal predecessors, (291), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:59:13,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:13,396 INFO L93 Difference]: Finished difference Result 403 states and 421 transitions. [2023-11-26 11:59:13,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:59:13,397 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 32.333333333333336) internal successors, (291), 10 states have internal predecessors, (291), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 160 [2023-11-26 11:59:13,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:13,400 INFO L225 Difference]: With dead ends: 403 [2023-11-26 11:59:13,400 INFO L226 Difference]: Without dead ends: 390 [2023-11-26 11:59:13,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:59:13,401 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 372 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:13,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 228 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 11:59:13,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2023-11-26 11:59:13,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 307. [2023-11-26 11:59:13,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 290 states have (on average 1.0482758620689656) internal successors, (304), 299 states have internal predecessors, (304), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:59:13,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 316 transitions. [2023-11-26 11:59:13,420 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 316 transitions. Word has length 160 [2023-11-26 11:59:13,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:13,421 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 316 transitions. [2023-11-26 11:59:13,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 32.333333333333336) internal successors, (291), 10 states have internal predecessors, (291), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:59:13,422 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 316 transitions. [2023-11-26 11:59:13,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-26 11:59:13,423 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:13,424 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2023-11-26 11:59:13,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:13,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:13,631 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 11:59:13,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:13,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1698830043, now seen corresponding path program 1 times [2023-11-26 11:59:13,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:13,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997918166] [2023-11-26 11:59:13,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:13,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:13,665 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:13,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [430825272] [2023-11-26 11:59:13,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:13,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:13,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:13,667 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:13,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-26 11:59:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:13,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 11:59:13,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:14,486 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:59:14,487 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:15,963 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:59:15,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:15,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997918166] [2023-11-26 11:59:15,964 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:15,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430825272] [2023-11-26 11:59:15,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430825272] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:59:15,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:59:15,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-11-26 11:59:15,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437533428] [2023-11-26 11:59:15,965 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:15,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-26 11:59:15,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:15,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-26 11:59:15,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-11-26 11:59:15,968 INFO L87 Difference]: Start difference. First operand 307 states and 316 transitions. Second operand has 15 states, 14 states have (on average 21.071428571428573) internal successors, (295), 15 states have internal predecessors, (295), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:59:18,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-26 11:59:19,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:19,321 INFO L93 Difference]: Finished difference Result 347 states and 355 transitions. [2023-11-26 11:59:19,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 11:59:19,321 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 21.071428571428573) internal successors, (295), 15 states have internal predecessors, (295), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 162 [2023-11-26 11:59:19,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:19,324 INFO L225 Difference]: With dead ends: 347 [2023-11-26 11:59:19,324 INFO L226 Difference]: Without dead ends: 346 [2023-11-26 11:59:19,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=177, Invalid=285, Unknown=0, NotChecked=0, Total=462 [2023-11-26 11:59:19,325 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 391 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 1177 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:19,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 159 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1177 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-26 11:59:19,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2023-11-26 11:59:19,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 306. [2023-11-26 11:59:19,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 290 states have (on average 1.0413793103448277) internal successors, (302), 298 states have internal predecessors, (302), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:59:19,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 314 transitions. [2023-11-26 11:59:19,347 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 314 transitions. Word has length 162 [2023-11-26 11:59:19,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:19,348 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 314 transitions. [2023-11-26 11:59:19,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 21.071428571428573) internal successors, (295), 15 states have internal predecessors, (295), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:59:19,349 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 314 transitions. [2023-11-26 11:59:19,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-11-26 11:59:19,351 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:19,351 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-26 11:59:19,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-26 11:59:19,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:19,558 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 11:59:19,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:19,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1161463576, now seen corresponding path program 2 times [2023-11-26 11:59:19,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:19,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167465649] [2023-11-26 11:59:19,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:19,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:19,575 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:19,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [823420226] [2023-11-26 11:59:19,576 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:59:19,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:19,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:19,577 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:19,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-26 11:59:19,660 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 11:59:19,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:59:19,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 11:59:19,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:20,525 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-11-26 11:59:20,525 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:20,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:20,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167465649] [2023-11-26 11:59:20,526 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:20,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823420226] [2023-11-26 11:59:20,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823420226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:20,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:20,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:59:20,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123336925] [2023-11-26 11:59:20,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:20,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:59:20,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:20,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:59:20,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:59:20,529 INFO L87 Difference]: Start difference. First operand 306 states and 314 transitions. Second operand has 6 states, 5 states have (on average 21.8) internal successors, (109), 6 states have internal predecessors, (109), 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) [2023-11-26 11:59:20,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:20,776 INFO L93 Difference]: Finished difference Result 306 states and 314 transitions. [2023-11-26 11:59:20,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:59:20,777 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.8) internal successors, (109), 6 states have internal predecessors, (109), 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 190 [2023-11-26 11:59:20,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:20,779 INFO L225 Difference]: With dead ends: 306 [2023-11-26 11:59:20,779 INFO L226 Difference]: Without dead ends: 247 [2023-11-26 11:59:20,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:59:20,781 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 82 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:20,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 37 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:59:20,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-11-26 11:59:20,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2023-11-26 11:59:20,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 236 states have (on average 1.0254237288135593) internal successors, (242), 240 states have internal predecessors, (242), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-26 11:59:20,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 252 transitions. [2023-11-26 11:59:20,801 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 252 transitions. Word has length 190 [2023-11-26 11:59:20,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:20,802 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 252 transitions. [2023-11-26 11:59:20,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.8) internal successors, (109), 6 states have internal predecessors, (109), 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) [2023-11-26 11:59:20,802 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 252 transitions. [2023-11-26 11:59:20,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-26 11:59:20,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:20,805 INFO L195 NwaCegarLoop]: trace histogram [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, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-11-26 11:59:20,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:21,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:21,016 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 11:59:21,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:21,017 INFO L85 PathProgramCache]: Analyzing trace with hash -678039597, now seen corresponding path program 2 times [2023-11-26 11:59:21,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:21,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665710167] [2023-11-26 11:59:21,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:21,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:21,035 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:21,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980562042] [2023-11-26 11:59:21,035 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:59:21,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:21,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:21,037 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:21,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ec78d5-a460-45c0-9d9a-b5d888873baa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-26 11:59:21,243 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:59:21,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:59:21,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-26 11:59:21,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:21,576 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 6 proven. 240 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-26 11:59:21,576 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:29,761 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 15)) (.cse1 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 10)) (.cse2 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 6))) (or (< (+ (* (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) 6) (* |c_ULTIMATE.start_main_~y~0#1| 4) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) (* 4 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (div (+ .cse0 .cse1 .cse2 (* (- 1) |c_ULTIMATE.start_main_~y~0#1|)) 30)) 307445734561825860) (not (= (mod (+ .cse0 .cse1 (* |c_ULTIMATE.start_main_~y~0#1| 29) .cse2) 30) 0)))) is different from false [2023-11-26 11:59:41,821 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)