./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd --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 39b854852f8258ff198098e27d83a5b0e296df48090ebea0d59d234417af0752 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:12:32,260 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:12:32,342 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 14:12:32,348 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:12:32,348 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:12:32,395 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:12:32,397 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:12:32,398 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:12:32,398 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:12:32,399 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:12:32,399 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:12:32,399 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:12:32,400 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:12:32,401 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:12:32,401 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:12:32,401 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:12:32,401 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:12:32,401 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:12:32,402 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:12:32,402 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:12:32,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:12:32,402 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:12:32,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:12:32,402 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:12:32,402 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:12:32,402 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 14:12:32,402 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:12:32,402 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:12:32,402 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:12:32,403 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:12:32,403 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:12:32,403 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:12:32,404 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:12:32,404 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:12:32,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:12:32,405 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:12:32,405 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:12:32,406 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:12:32,406 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:12:32,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:12:32,406 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:12:32,406 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:12:32,406 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:12:32,406 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:12:32,407 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd 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 -> 39b854852f8258ff198098e27d83a5b0e296df48090ebea0d59d234417af0752 [2024-11-13 14:12:32,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:12:32,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:12:32,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:12:32,825 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:12:32,826 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:12:32,829 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound20.c Unable to find full path for "g++" [2024-11-13 14:12:34,998 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:12:35,327 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:12:35,328 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound20.c [2024-11-13 14:12:35,337 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/data/b6d72cac1/20efd223d38e43198ecf49bdea8caf77/FLAG006f36497 [2024-11-13 14:12:35,365 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/data/b6d72cac1/20efd223d38e43198ecf49bdea8caf77 [2024-11-13 14:12:35,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:12:35,370 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:12:35,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:12:35,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:12:35,379 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:12:35,380 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:12:35" (1/1) ... [2024-11-13 14:12:35,384 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32868294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:12:35, skipping insertion in model container [2024-11-13 14:12:35,385 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:12:35" (1/1) ... [2024-11-13 14:12:35,408 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:12:35,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:12:35,691 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:12:35,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:12:35,750 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:12:35,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:12:35 WrapperNode [2024-11-13 14:12:35,751 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:12:35,753 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:12:35,755 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:12:35,755 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:12:35,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:12:35" (1/1) ... [2024-11-13 14:12:35,775 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:12:35" (1/1) ... [2024-11-13 14:12:35,818 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 136 [2024-11-13 14:12:35,818 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:12:35,822 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:12:35,822 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:12:35,822 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:12:35,837 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:12:35" (1/1) ... [2024-11-13 14:12:35,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:12:35" (1/1) ... [2024-11-13 14:12:35,839 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:12:35" (1/1) ... [2024-11-13 14:12:35,871 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]. [2024-11-13 14:12:35,871 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:12:35" (1/1) ... [2024-11-13 14:12:35,871 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:12:35" (1/1) ... [2024-11-13 14:12:35,879 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:12:35" (1/1) ... [2024-11-13 14:12:35,886 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:12:35" (1/1) ... [2024-11-13 14:12:35,887 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:12:35" (1/1) ... [2024-11-13 14:12:35,893 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:12:35" (1/1) ... [2024-11-13 14:12:35,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:12:35,896 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:12:35,896 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:12:35,896 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:12:35,898 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:12:35" (1/1) ... [2024-11-13 14:12:35,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:12:35,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:12:35,939 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:12:35,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:12:35,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:12:35,978 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 14:12:35,979 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 14:12:35,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:12:35,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:12:35,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:12:35,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 14:12:35,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 14:12:36,068 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:12:36,070 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:12:37,169 INFO L? ?]: Removed 132 outVars from TransFormulas that were not future-live. [2024-11-13 14:12:37,170 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:12:37,199 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:12:37,202 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-13 14:12:37,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:12:37 BoogieIcfgContainer [2024-11-13 14:12:37,203 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:12:37,206 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:12:37,206 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:12:37,213 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:12:37,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:12:35" (1/3) ... [2024-11-13 14:12:37,215 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a33b6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:12:37, skipping insertion in model container [2024-11-13 14:12:37,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:12:35" (2/3) ... [2024-11-13 14:12:37,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a33b6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:12:37, skipping insertion in model container [2024-11-13 14:12:37,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:12:37" (3/3) ... [2024-11-13 14:12:37,219 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd3-ll_valuebound20.c [2024-11-13 14:12:37,243 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:12:37,248 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG egcd3-ll_valuebound20.c that has 3 procedures, 134 locations, 1 initial locations, 3 loop locations, and 50 error locations. [2024-11-13 14:12:37,349 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:12:37,373 INFO L333 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, 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;@bc6a973, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:12:37,375 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-13 14:12:37,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 72 states have (on average 1.8472222222222223) internal successors, (133), 122 states have internal predecessors, (133), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-13 14:12:37,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-13 14:12:37,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:12:37,394 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:12:37,395 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:12:37,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:12:37,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1196423025, now seen corresponding path program 1 times [2024-11-13 14:12:37,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:12:37,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044802594] [2024-11-13 14:12:37,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:37,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:12:37,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:37,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:12:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:37,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:12:37,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:37,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:12:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:37,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:12:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:37,655 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:12:37,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:12:37,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044802594] [2024-11-13 14:12:37,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044802594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:12:37,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:12:37,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:12:37,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520462358] [2024-11-13 14:12:37,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:12:37,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 14:12:37,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:12:37,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 14:12:37,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:12:37,700 INFO L87 Difference]: Start difference. First operand has 134 states, 72 states have (on average 1.8472222222222223) internal successors, (133), 122 states have internal predecessors, (133), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 14:12:37,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:12:37,743 INFO L93 Difference]: Finished difference Result 264 states and 306 transitions. [2024-11-13 14:12:37,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 14:12:37,746 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2024-11-13 14:12:37,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:12:37,759 INFO L225 Difference]: With dead ends: 264 [2024-11-13 14:12:37,759 INFO L226 Difference]: Without dead ends: 127 [2024-11-13 14:12:37,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:12:37,772 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:12:37,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:12:37,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-13 14:12:37,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-13 14:12:37,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 67 states have (on average 1.7761194029850746) internal successors, (119), 116 states have internal predecessors, (119), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 14:12:37,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 135 transitions. [2024-11-13 14:12:37,890 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 135 transitions. Word has length 26 [2024-11-13 14:12:37,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:12:37,891 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 135 transitions. [2024-11-13 14:12:37,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 14:12:37,891 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 135 transitions. [2024-11-13 14:12:37,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 14:12:37,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:12:37,893 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:12:37,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:12:37,894 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:12:37,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:12:37,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1368647064, now seen corresponding path program 1 times [2024-11-13 14:12:37,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:12:37,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973657920] [2024-11-13 14:12:37,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:37,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:12:37,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:38,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:12:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:38,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:12:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:38,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:12:38,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:38,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:12:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:38,311 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 14:12:38,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:12:38,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973657920] [2024-11-13 14:12:38,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973657920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:12:38,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:12:38,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:12:38,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442076135] [2024-11-13 14:12:38,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:12:38,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:12:38,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:12:38,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:12:38,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:12:38,319 INFO L87 Difference]: Start difference. First operand 127 states and 135 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:38,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:12:38,930 INFO L93 Difference]: Finished difference Result 216 states and 236 transitions. [2024-11-13 14:12:38,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:12:38,931 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 27 [2024-11-13 14:12:38,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:12:38,933 INFO L225 Difference]: With dead ends: 216 [2024-11-13 14:12:38,933 INFO L226 Difference]: Without dead ends: 188 [2024-11-13 14:12:38,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:12:38,938 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 208 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:12:38,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 329 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:12:38,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-13 14:12:38,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 129. [2024-11-13 14:12:38,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 69 states have (on average 1.7536231884057971) internal successors, (121), 118 states have internal predecessors, (121), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 14:12:38,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 137 transitions. [2024-11-13 14:12:38,960 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 137 transitions. Word has length 27 [2024-11-13 14:12:38,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:12:38,961 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 137 transitions. [2024-11-13 14:12:38,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:38,961 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 137 transitions. [2024-11-13 14:12:38,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-13 14:12:38,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:12:38,962 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:12:38,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:12:38,963 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:12:38,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:12:38,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1238896084, now seen corresponding path program 1 times [2024-11-13 14:12:38,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:12:38,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433325415] [2024-11-13 14:12:38,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:38,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:12:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:12:39,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1682992405] [2024-11-13 14:12:39,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:39,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:39,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:12:39,027 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:12:39,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:12:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:39,104 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:12:39,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:12:39,156 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:12:39,156 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:12:39,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:12:39,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433325415] [2024-11-13 14:12:39,158 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:12:39,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682992405] [2024-11-13 14:12:39,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682992405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:12:39,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:12:39,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:12:39,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344101831] [2024-11-13 14:12:39,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:12:39,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:12:39,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:12:39,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:12:39,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:12:39,162 INFO L87 Difference]: Start difference. First operand 129 states and 137 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:39,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:12:39,706 INFO L93 Difference]: Finished difference Result 198 states and 216 transitions. [2024-11-13 14:12:39,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:12:39,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 30 [2024-11-13 14:12:39,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:12:39,714 INFO L225 Difference]: With dead ends: 198 [2024-11-13 14:12:39,714 INFO L226 Difference]: Without dead ends: 194 [2024-11-13 14:12:39,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:12:39,723 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 59 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:12:39,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 223 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:12:39,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-13 14:12:39,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 168. [2024-11-13 14:12:39,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 104 states have (on average 1.7692307692307692) internal successors, (184), 153 states have internal predecessors, (184), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 14:12:39,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 208 transitions. [2024-11-13 14:12:39,784 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 208 transitions. Word has length 30 [2024-11-13 14:12:39,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:12:39,788 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 208 transitions. [2024-11-13 14:12:39,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:39,789 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 208 transitions. [2024-11-13 14:12:39,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-13 14:12:39,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:12:39,800 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:12:39,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:12:40,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:40,001 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:12:40,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:12:40,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1238895702, now seen corresponding path program 1 times [2024-11-13 14:12:40,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:12:40,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181046320] [2024-11-13 14:12:40,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:40,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:12:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:12:40,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [837012303] [2024-11-13 14:12:40,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:40,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:40,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:12:40,054 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:12:40,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:12:40,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:40,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:12:40,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:12:40,153 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:12:40,153 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:12:40,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:12:40,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181046320] [2024-11-13 14:12:40,154 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:12:40,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837012303] [2024-11-13 14:12:40,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837012303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:12:40,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:12:40,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:12:40,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396516472] [2024-11-13 14:12:40,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:12:40,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:12:40,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:12:40,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:12:40,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:12:40,159 INFO L87 Difference]: Start difference. First operand 168 states and 208 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:40,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:12:40,365 INFO L93 Difference]: Finished difference Result 196 states and 212 transitions. [2024-11-13 14:12:40,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:12:40,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 30 [2024-11-13 14:12:40,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:12:40,369 INFO L225 Difference]: With dead ends: 196 [2024-11-13 14:12:40,371 INFO L226 Difference]: Without dead ends: 194 [2024-11-13 14:12:40,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:12:40,373 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 59 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:12:40,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 241 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:12:40,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-13 14:12:40,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 168. [2024-11-13 14:12:40,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 104 states have (on average 1.75) internal successors, (182), 153 states have internal predecessors, (182), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 14:12:40,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 206 transitions. [2024-11-13 14:12:40,404 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 206 transitions. Word has length 30 [2024-11-13 14:12:40,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:12:40,405 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 206 transitions. [2024-11-13 14:12:40,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:40,405 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 206 transitions. [2024-11-13 14:12:40,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-13 14:12:40,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:12:40,407 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:12:40,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 14:12:40,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:40,611 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:12:40,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:12:40,612 INFO L85 PathProgramCache]: Analyzing trace with hash 873200470, now seen corresponding path program 1 times [2024-11-13 14:12:40,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:12:40,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574698916] [2024-11-13 14:12:40,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:40,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:12:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:40,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:12:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:40,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:12:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:40,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:12:40,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:40,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:12:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:40,774 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:12:40,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:12:40,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574698916] [2024-11-13 14:12:40,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574698916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:12:40,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:12:40,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:12:40,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828258007] [2024-11-13 14:12:40,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:12:40,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:12:40,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:12:40,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:12:40,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:12:40,780 INFO L87 Difference]: Start difference. First operand 168 states and 206 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:42,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:12:42,065 INFO L93 Difference]: Finished difference Result 191 states and 210 transitions. [2024-11-13 14:12:42,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:12:42,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2024-11-13 14:12:42,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:12:42,068 INFO L225 Difference]: With dead ends: 191 [2024-11-13 14:12:42,068 INFO L226 Difference]: Without dead ends: 190 [2024-11-13 14:12:42,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:12:42,071 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 53 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:12:42,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 418 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 14:12:42,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-13 14:12:42,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 169. [2024-11-13 14:12:42,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 105 states have (on average 1.7428571428571429) internal successors, (183), 154 states have internal predecessors, (183), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 14:12:42,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 207 transitions. [2024-11-13 14:12:42,091 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 207 transitions. Word has length 32 [2024-11-13 14:12:42,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:12:42,091 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 207 transitions. [2024-11-13 14:12:42,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:42,092 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 207 transitions. [2024-11-13 14:12:42,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-13 14:12:42,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:12:42,093 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:12:42,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:12:42,093 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:12:42,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:12:42,094 INFO L85 PathProgramCache]: Analyzing trace with hash 872831064, now seen corresponding path program 1 times [2024-11-13 14:12:42,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:12:42,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617905233] [2024-11-13 14:12:42,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:42,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:12:42,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:12:42,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [3063256] [2024-11-13 14:12:42,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:42,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:42,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:12:42,118 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:12:42,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 14:12:42,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:42,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:12:42,192 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:12:42,333 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:12:42,334 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:12:42,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:12:42,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617905233] [2024-11-13 14:12:42,334 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:12:42,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3063256] [2024-11-13 14:12:42,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3063256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:12:42,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:12:42,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:12:42,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844818325] [2024-11-13 14:12:42,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:12:42,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:12:42,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:12:42,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:12:42,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:12:42,337 INFO L87 Difference]: Start difference. First operand 169 states and 207 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:42,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:12:42,763 INFO L93 Difference]: Finished difference Result 188 states and 207 transitions. [2024-11-13 14:12:42,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:12:42,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2024-11-13 14:12:42,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:12:42,766 INFO L225 Difference]: With dead ends: 188 [2024-11-13 14:12:42,767 INFO L226 Difference]: Without dead ends: 187 [2024-11-13 14:12:42,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:12:42,768 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 186 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:12:42,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 187 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:12:42,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-13 14:12:42,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 169. [2024-11-13 14:12:42,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 105 states have (on average 1.7333333333333334) internal successors, (182), 154 states have internal predecessors, (182), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 14:12:42,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 206 transitions. [2024-11-13 14:12:42,799 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 206 transitions. Word has length 32 [2024-11-13 14:12:42,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:12:42,799 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 206 transitions. [2024-11-13 14:12:42,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:42,799 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 206 transitions. [2024-11-13 14:12:42,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 14:12:42,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:12:42,804 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:12:42,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 14:12:43,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-13 14:12:43,005 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:12:43,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:12:43,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1299410946, now seen corresponding path program 1 times [2024-11-13 14:12:43,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:12:43,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902261398] [2024-11-13 14:12:43,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:43,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:12:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:12:43,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [831176837] [2024-11-13 14:12:43,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:43,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:43,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:12:43,030 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:12:43,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 14:12:43,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:43,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:12:43,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:12:43,245 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:12:43,245 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:12:43,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:12:43,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902261398] [2024-11-13 14:12:43,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:12:43,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831176837] [2024-11-13 14:12:43,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831176837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:12:43,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:12:43,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:12:43,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741844631] [2024-11-13 14:12:43,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:12:43,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:12:43,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:12:43,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:12:43,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:12:43,248 INFO L87 Difference]: Start difference. First operand 169 states and 206 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:43,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:12:43,943 INFO L93 Difference]: Finished difference Result 189 states and 208 transitions. [2024-11-13 14:12:43,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:12:43,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 33 [2024-11-13 14:12:43,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:12:43,945 INFO L225 Difference]: With dead ends: 189 [2024-11-13 14:12:43,945 INFO L226 Difference]: Without dead ends: 188 [2024-11-13 14:12:43,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:12:43,947 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 53 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:12:43,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 292 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:12:43,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-13 14:12:43,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 170. [2024-11-13 14:12:43,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 106 states have (on average 1.7264150943396226) internal successors, (183), 155 states have internal predecessors, (183), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 14:12:43,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 207 transitions. [2024-11-13 14:12:43,961 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 207 transitions. Word has length 33 [2024-11-13 14:12:43,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:12:43,961 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 207 transitions. [2024-11-13 14:12:43,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:43,962 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 207 transitions. [2024-11-13 14:12:43,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 14:12:43,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:12:43,963 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:12:43,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 14:12:44,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-13 14:12:44,167 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:12:44,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:12:44,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1287959288, now seen corresponding path program 1 times [2024-11-13 14:12:44,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:12:44,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489539580] [2024-11-13 14:12:44,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:44,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:12:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:12:44,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [29858210] [2024-11-13 14:12:44,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:44,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:44,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:12:44,190 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:12:44,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 14:12:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:44,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:12:44,263 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:12:44,375 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:12:44,375 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:12:44,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:12:44,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489539580] [2024-11-13 14:12:44,376 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:12:44,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29858210] [2024-11-13 14:12:44,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29858210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:12:44,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:12:44,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:12:44,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094897698] [2024-11-13 14:12:44,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:12:44,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:12:44,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:12:44,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:12:44,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:12:44,377 INFO L87 Difference]: Start difference. First operand 170 states and 207 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:44,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:12:44,607 INFO L93 Difference]: Finished difference Result 189 states and 207 transitions. [2024-11-13 14:12:44,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:12:44,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 33 [2024-11-13 14:12:44,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:12:44,610 INFO L225 Difference]: With dead ends: 189 [2024-11-13 14:12:44,610 INFO L226 Difference]: Without dead ends: 188 [2024-11-13 14:12:44,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:12:44,612 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 184 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:12:44,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 187 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:12:44,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-13 14:12:44,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 170. [2024-11-13 14:12:44,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 106 states have (on average 1.7169811320754718) internal successors, (182), 155 states have internal predecessors, (182), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 14:12:44,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 206 transitions. [2024-11-13 14:12:44,626 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 206 transitions. Word has length 33 [2024-11-13 14:12:44,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:12:44,627 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 206 transitions. [2024-11-13 14:12:44,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:44,627 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 206 transitions. [2024-11-13 14:12:44,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 14:12:44,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:12:44,628 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:12:44,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 14:12:44,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:44,829 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:12:44,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:12:44,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1627033816, now seen corresponding path program 1 times [2024-11-13 14:12:44,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:12:44,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955698200] [2024-11-13 14:12:44,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:44,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:12:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:12:44,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [342679927] [2024-11-13 14:12:44,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:44,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:44,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:12:44,865 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:12:44,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 14:12:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:44,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:12:44,935 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:12:44,957 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:12:44,957 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:12:44,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:12:44,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955698200] [2024-11-13 14:12:44,958 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:12:44,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342679927] [2024-11-13 14:12:44,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342679927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:12:44,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:12:44,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:12:44,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544670200] [2024-11-13 14:12:44,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:12:44,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:12:44,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:12:44,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:12:44,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:12:44,961 INFO L87 Difference]: Start difference. First operand 170 states and 206 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:45,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:12:45,066 INFO L93 Difference]: Finished difference Result 284 states and 362 transitions. [2024-11-13 14:12:45,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:12:45,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2024-11-13 14:12:45,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:12:45,069 INFO L225 Difference]: With dead ends: 284 [2024-11-13 14:12:45,069 INFO L226 Difference]: Without dead ends: 278 [2024-11-13 14:12:45,070 INFO L431 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 [2024-11-13 14:12:45,073 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 56 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:12:45,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 218 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:12:45,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2024-11-13 14:12:45,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 246. [2024-11-13 14:12:45,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 174 states have (on average 1.6896551724137931) internal successors, (294), 223 states have internal predecessors, (294), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 14:12:45,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 334 transitions. [2024-11-13 14:12:45,107 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 334 transitions. Word has length 34 [2024-11-13 14:12:45,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:12:45,107 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 334 transitions. [2024-11-13 14:12:45,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:45,108 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 334 transitions. [2024-11-13 14:12:45,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 14:12:45,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:12:45,109 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:12:45,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-13 14:12:45,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:45,309 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:12:45,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:12:45,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1272032346, now seen corresponding path program 1 times [2024-11-13 14:12:45,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:12:45,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977164366] [2024-11-13 14:12:45,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:45,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:12:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:12:45,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1174309566] [2024-11-13 14:12:45,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:45,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:45,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:12:45,347 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:12:45,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 14:12:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:45,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:12:45,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:12:45,503 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:12:45,503 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:12:45,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:12:45,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977164366] [2024-11-13 14:12:45,503 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:12:45,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174309566] [2024-11-13 14:12:45,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174309566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:12:45,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:12:45,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:12:45,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124719784] [2024-11-13 14:12:45,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:12:45,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:12:45,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:12:45,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:12:45,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:12:45,506 INFO L87 Difference]: Start difference. First operand 246 states and 334 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:46,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:12:46,114 INFO L93 Difference]: Finished difference Result 271 states and 338 transitions. [2024-11-13 14:12:46,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:12:46,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2024-11-13 14:12:46,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:12:46,116 INFO L225 Difference]: With dead ends: 271 [2024-11-13 14:12:46,116 INFO L226 Difference]: Without dead ends: 270 [2024-11-13 14:12:46,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:12:46,117 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 57 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:12:46,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 327 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:12:46,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-13 14:12:46,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 246. [2024-11-13 14:12:46,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 174 states have (on average 1.6781609195402298) internal successors, (292), 223 states have internal predecessors, (292), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 14:12:46,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 332 transitions. [2024-11-13 14:12:46,139 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 332 transitions. Word has length 34 [2024-11-13 14:12:46,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:12:46,140 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 332 transitions. [2024-11-13 14:12:46,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:46,140 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 332 transitions. [2024-11-13 14:12:46,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-13 14:12:46,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:12:46,141 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:12:46,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-13 14:12:46,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 14:12:46,343 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:12:46,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:12:46,344 INFO L85 PathProgramCache]: Analyzing trace with hash 778297146, now seen corresponding path program 1 times [2024-11-13 14:12:46,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:12:46,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847654408] [2024-11-13 14:12:46,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:46,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:12:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:12:46,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [843328204] [2024-11-13 14:12:46,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:46,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:46,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:12:46,378 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:12:46,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 14:12:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:46,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:12:46,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:12:46,571 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:12:46,571 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:12:46,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:12:46,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847654408] [2024-11-13 14:12:46,571 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:12:46,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843328204] [2024-11-13 14:12:46,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843328204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:12:46,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:12:46,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:12:46,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522737322] [2024-11-13 14:12:46,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:12:46,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:12:46,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:12:46,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:12:46,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:12:46,574 INFO L87 Difference]: Start difference. First operand 246 states and 332 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:47,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:12:47,469 INFO L93 Difference]: Finished difference Result 272 states and 337 transitions. [2024-11-13 14:12:47,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:12:47,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 35 [2024-11-13 14:12:47,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:12:47,471 INFO L225 Difference]: With dead ends: 272 [2024-11-13 14:12:47,471 INFO L226 Difference]: Without dead ends: 271 [2024-11-13 14:12:47,472 INFO L431 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 [2024-11-13 14:12:47,472 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 57 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:12:47,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 329 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 14:12:47,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-13 14:12:47,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 246. [2024-11-13 14:12:47,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 174 states have (on average 1.6666666666666667) internal successors, (290), 223 states have internal predecessors, (290), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 14:12:47,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 330 transitions. [2024-11-13 14:12:47,490 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 330 transitions. Word has length 35 [2024-11-13 14:12:47,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:12:47,490 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 330 transitions. [2024-11-13 14:12:47,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:47,490 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 330 transitions. [2024-11-13 14:12:47,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-13 14:12:47,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:12:47,491 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:12:47,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 14:12:47,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:47,692 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:12:47,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:12:47,692 INFO L85 PathProgramCache]: Analyzing trace with hash 211406426, now seen corresponding path program 1 times [2024-11-13 14:12:47,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:12:47,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877566446] [2024-11-13 14:12:47,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:47,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:12:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:47,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:12:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:47,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:12:47,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:47,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:12:47,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:47,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:12:47,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:47,859 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:12:47,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:12:47,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877566446] [2024-11-13 14:12:47,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877566446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:12:47,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:12:47,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:12:47,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288515226] [2024-11-13 14:12:47,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:12:47,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:12:47,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:12:47,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:12:47,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:12:47,862 INFO L87 Difference]: Start difference. First operand 246 states and 330 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:48,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:12:48,410 INFO L93 Difference]: Finished difference Result 275 states and 340 transitions. [2024-11-13 14:12:48,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:12:48,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 36 [2024-11-13 14:12:48,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:12:48,412 INFO L225 Difference]: With dead ends: 275 [2024-11-13 14:12:48,413 INFO L226 Difference]: Without dead ends: 274 [2024-11-13 14:12:48,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:12:48,414 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 56 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:12:48,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 358 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:12:48,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-11-13 14:12:48,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 251. [2024-11-13 14:12:48,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 179 states have (on average 1.6592178770949721) internal successors, (297), 228 states have internal predecessors, (297), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 14:12:48,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 337 transitions. [2024-11-13 14:12:48,447 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 337 transitions. Word has length 36 [2024-11-13 14:12:48,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:12:48,447 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 337 transitions. [2024-11-13 14:12:48,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:48,448 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 337 transitions. [2024-11-13 14:12:48,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-13 14:12:48,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:12:48,448 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:12:48,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 14:12:48,449 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:12:48,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:12:48,449 INFO L85 PathProgramCache]: Analyzing trace with hash -2036335226, now seen corresponding path program 1 times [2024-11-13 14:12:48,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:12:48,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276080786] [2024-11-13 14:12:48,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:48,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:12:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:12:48,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1755629834] [2024-11-13 14:12:48,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:48,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:48,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:12:48,482 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:12:48,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 14:12:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:48,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:12:48,554 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:12:48,642 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:12:48,642 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:12:48,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:12:48,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276080786] [2024-11-13 14:12:48,642 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:12:48,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755629834] [2024-11-13 14:12:48,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755629834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:12:48,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:12:48,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:12:48,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695376736] [2024-11-13 14:12:48,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:12:48,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:12:48,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:12:48,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:12:48,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:12:48,645 INFO L87 Difference]: Start difference. First operand 251 states and 337 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:49,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:12:49,099 INFO L93 Difference]: Finished difference Result 292 states and 348 transitions. [2024-11-13 14:12:49,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:12:49,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 37 [2024-11-13 14:12:49,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:12:49,102 INFO L225 Difference]: With dead ends: 292 [2024-11-13 14:12:49,102 INFO L226 Difference]: Without dead ends: 291 [2024-11-13 14:12:49,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:12:49,103 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 153 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:12:49,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 358 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:12:49,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-13 14:12:49,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 253. [2024-11-13 14:12:49,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 181 states have (on average 1.6519337016574585) internal successors, (299), 230 states have internal predecessors, (299), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 14:12:49,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 339 transitions. [2024-11-13 14:12:49,124 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 339 transitions. Word has length 37 [2024-11-13 14:12:49,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:12:49,124 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 339 transitions. [2024-11-13 14:12:49,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:12:49,125 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 339 transitions. [2024-11-13 14:12:49,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-13 14:12:49,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:12:49,126 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:12:49,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-13 14:12:49,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:49,326 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:12:49,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:12:49,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1950384124, now seen corresponding path program 1 times [2024-11-13 14:12:49,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:12:49,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541160786] [2024-11-13 14:12:49,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:49,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:12:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:49,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:12:49,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:49,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:12:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:49,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:12:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:49,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:12:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:49,512 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 14:12:49,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:12:49,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541160786] [2024-11-13 14:12:49,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541160786] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:12:49,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094841779] [2024-11-13 14:12:49,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:49,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:49,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:12:49,515 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:12:49,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 14:12:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:49,581 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 14:12:49,583 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:12:49,667 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:12:49,667 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:12:49,884 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:12:49,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094841779] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:12:49,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:12:49,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 15 [2024-11-13 14:12:49,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620771595] [2024-11-13 14:12:49,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:12:49,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 14:12:49,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:12:49,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 14:12:49,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:12:49,887 INFO L87 Difference]: Start difference. First operand 253 states and 339 transitions. Second operand has 15 states, 15 states have (on average 3.933333333333333) internal successors, (59), 14 states have internal predecessors, (59), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 14:12:52,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:12:52,276 INFO L93 Difference]: Finished difference Result 903 states and 1188 transitions. [2024-11-13 14:12:52,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-13 14:12:52,277 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.933333333333333) internal successors, (59), 14 states have internal predecessors, (59), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2024-11-13 14:12:52,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:12:52,285 INFO L225 Difference]: With dead ends: 903 [2024-11-13 14:12:52,285 INFO L226 Difference]: Without dead ends: 875 [2024-11-13 14:12:52,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=316, Invalid=944, Unknown=0, NotChecked=0, Total=1260 [2024-11-13 14:12:52,289 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 1691 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1691 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 1561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:12:52,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1691 Valid, 1262 Invalid, 1561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 1319 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-13 14:12:52,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2024-11-13 14:12:52,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 257. [2024-11-13 14:12:52,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 185 states have (on average 1.6486486486486487) internal successors, (305), 234 states have internal predecessors, (305), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 14:12:52,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 345 transitions. [2024-11-13 14:12:52,343 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 345 transitions. Word has length 40 [2024-11-13 14:12:52,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:12:52,343 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 345 transitions. [2024-11-13 14:12:52,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.933333333333333) internal successors, (59), 14 states have internal predecessors, (59), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 14:12:52,344 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 345 transitions. [2024-11-13 14:12:52,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-13 14:12:52,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:12:52,345 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:12:52,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-13 14:12:52,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:52,550 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:12:52,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:12:52,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1918164895, now seen corresponding path program 1 times [2024-11-13 14:12:52,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:12:52,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253333711] [2024-11-13 14:12:52,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:52,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:12:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:12:52,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1097721571] [2024-11-13 14:12:52,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:52,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:52,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:12:52,585 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:12:52,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 14:12:52,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:52,660 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:12:52,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:12:52,771 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:12:52,771 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:12:52,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:12:52,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253333711] [2024-11-13 14:12:52,772 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:12:52,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097721571] [2024-11-13 14:12:52,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097721571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:12:52,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:12:52,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:12:52,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026291641] [2024-11-13 14:12:52,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:12:52,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:12:52,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:12:52,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:12:52,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:12:52,774 INFO L87 Difference]: Start difference. First operand 257 states and 345 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 14:12:53,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:12:53,332 INFO L93 Difference]: Finished difference Result 275 states and 347 transitions. [2024-11-13 14:12:53,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:12:53,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 43 [2024-11-13 14:12:53,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:12:53,335 INFO L225 Difference]: With dead ends: 275 [2024-11-13 14:12:53,335 INFO L226 Difference]: Without dead ends: 274 [2024-11-13 14:12:53,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:12:53,337 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 190 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:12:53,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 181 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:12:53,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-11-13 14:12:53,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 257. [2024-11-13 14:12:53,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 185 states have (on average 1.6378378378378378) internal successors, (303), 234 states have internal predecessors, (303), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 14:12:53,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 343 transitions. [2024-11-13 14:12:53,364 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 343 transitions. Word has length 43 [2024-11-13 14:12:53,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:12:53,364 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 343 transitions. [2024-11-13 14:12:53,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 14:12:53,365 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 343 transitions. [2024-11-13 14:12:53,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-13 14:12:53,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:12:53,366 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:12:53,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-13 14:12:53,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:53,567 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:12:53,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:12:53,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1574610802, now seen corresponding path program 1 times [2024-11-13 14:12:53,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:12:53,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165092592] [2024-11-13 14:12:53,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:53,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:12:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:12:53,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1975423477] [2024-11-13 14:12:53,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:53,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:53,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:12:53,596 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:12:53,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 14:12:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:53,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 14:12:53,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:12:53,952 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 14:12:53,952 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:12:54,385 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 14:12:54,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:12:54,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165092592] [2024-11-13 14:12:54,386 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:12:54,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975423477] [2024-11-13 14:12:54,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975423477] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:12:54,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:12:54,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2024-11-13 14:12:54,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323140026] [2024-11-13 14:12:54,388 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:12:54,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:12:54,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:12:54,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:12:54,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:12:54,390 INFO L87 Difference]: Start difference. First operand 257 states and 343 transitions. Second operand has 12 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 14:12:56,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:12:56,009 INFO L93 Difference]: Finished difference Result 452 states and 578 transitions. [2024-11-13 14:12:56,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:12:56,010 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2024-11-13 14:12:56,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:12:56,012 INFO L225 Difference]: With dead ends: 452 [2024-11-13 14:12:56,012 INFO L226 Difference]: Without dead ends: 449 [2024-11-13 14:12:56,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:12:56,014 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 736 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 737 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:12:56,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [737 Valid, 642 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 14:12:56,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-13 14:12:56,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 273. [2024-11-13 14:12:56,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 201 states have (on average 1.6119402985074627) internal successors, (324), 249 states have internal predecessors, (324), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-13 14:12:56,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 366 transitions. [2024-11-13 14:12:56,057 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 366 transitions. Word has length 43 [2024-11-13 14:12:56,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:12:56,057 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 366 transitions. [2024-11-13 14:12:56,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 14:12:56,058 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 366 transitions. [2024-11-13 14:12:56,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-13 14:12:56,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:12:56,059 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:12:56,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-13 14:12:56,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:56,263 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:12:56,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:12:56,264 INFO L85 PathProgramCache]: Analyzing trace with hash -666430306, now seen corresponding path program 1 times [2024-11-13 14:12:56,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:12:56,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269416993] [2024-11-13 14:12:56,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:56,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:12:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:12:56,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [614631736] [2024-11-13 14:12:56,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:56,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:56,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:12:56,295 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:12:56,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 14:12:56,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:56,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:12:56,365 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:12:56,466 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:12:56,466 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:12:56,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:12:56,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269416993] [2024-11-13 14:12:56,466 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:12:56,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614631736] [2024-11-13 14:12:56,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614631736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:12:56,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:12:56,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:12:56,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260716754] [2024-11-13 14:12:56,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:12:56,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:12:56,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:12:56,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:12:56,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:12:56,468 INFO L87 Difference]: Start difference. First operand 273 states and 366 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 14:12:56,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:12:56,728 INFO L93 Difference]: Finished difference Result 291 states and 368 transitions. [2024-11-13 14:12:56,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:12:56,729 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 44 [2024-11-13 14:12:56,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:12:56,731 INFO L225 Difference]: With dead ends: 291 [2024-11-13 14:12:56,731 INFO L226 Difference]: Without dead ends: 290 [2024-11-13 14:12:56,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:12:56,732 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 188 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:12:56,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 181 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:12:56,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-13 14:12:56,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 273. [2024-11-13 14:12:56,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 201 states have (on average 1.6019900497512438) internal successors, (322), 249 states have internal predecessors, (322), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-13 14:12:56,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 364 transitions. [2024-11-13 14:12:56,768 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 364 transitions. Word has length 44 [2024-11-13 14:12:56,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:12:56,768 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 364 transitions. [2024-11-13 14:12:56,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 14:12:56,768 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 364 transitions. [2024-11-13 14:12:56,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-13 14:12:56,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:12:56,769 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:12:56,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-13 14:12:56,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 14:12:56,970 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:12:56,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:12:56,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1568294682, now seen corresponding path program 1 times [2024-11-13 14:12:56,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:12:56,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154925202] [2024-11-13 14:12:56,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:56,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:12:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:12:56,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1766222272] [2024-11-13 14:12:56,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:56,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:56,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:12:56,990 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:12:56,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 14:12:57,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:57,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 14:12:57,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:12:57,287 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 14:12:57,288 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:12:58,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:12:58,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154925202] [2024-11-13 14:12:58,338 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:12:58,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766222272] [2024-11-13 14:12:58,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766222272] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:12:58,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:12:58,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-13 14:12:58,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425703464] [2024-11-13 14:12:58,339 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:12:58,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:12:58,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:12:58,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:12:58,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:12:58,341 INFO L87 Difference]: Start difference. First operand 273 states and 364 transitions. Second operand has 8 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 14:12:58,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:12:58,821 INFO L93 Difference]: Finished difference Result 430 states and 557 transitions. [2024-11-13 14:12:58,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:12:58,822 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 44 [2024-11-13 14:12:58,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:12:58,825 INFO L225 Difference]: With dead ends: 430 [2024-11-13 14:12:58,825 INFO L226 Difference]: Without dead ends: 428 [2024-11-13 14:12:58,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:12:58,826 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 371 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:12:58,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 478 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:12:58,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-13 14:12:58,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 363. [2024-11-13 14:12:58,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 282 states have (on average 1.6524822695035462) internal successors, (466), 330 states have internal predecessors, (466), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-13 14:12:58,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 526 transitions. [2024-11-13 14:12:58,876 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 526 transitions. Word has length 44 [2024-11-13 14:12:58,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:12:58,877 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 526 transitions. [2024-11-13 14:12:58,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 14:12:58,877 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 526 transitions. [2024-11-13 14:12:58,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-13 14:12:58,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:12:58,878 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:12:58,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 14:12:59,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-13 14:12:59,082 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:12:59,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:12:59,083 INFO L85 PathProgramCache]: Analyzing trace with hash 815497089, now seen corresponding path program 1 times [2024-11-13 14:12:59,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:12:59,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691405856] [2024-11-13 14:12:59,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:59,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:12:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:12:59,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2040892114] [2024-11-13 14:12:59,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:12:59,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:12:59,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:12:59,135 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:12:59,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-13 14:12:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:12:59,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:12:59,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:12:59,267 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:12:59,267 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:12:59,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:12:59,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691405856] [2024-11-13 14:12:59,268 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:12:59,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040892114] [2024-11-13 14:12:59,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040892114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:12:59,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:12:59,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:12:59,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744119471] [2024-11-13 14:12:59,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:12:59,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:12:59,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:12:59,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:12:59,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:12:59,270 INFO L87 Difference]: Start difference. First operand 363 states and 526 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:13:00,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:13:00,167 INFO L93 Difference]: Finished difference Result 391 states and 538 transitions. [2024-11-13 14:13:00,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:13:00,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2024-11-13 14:13:00,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:13:00,170 INFO L225 Difference]: With dead ends: 391 [2024-11-13 14:13:00,170 INFO L226 Difference]: Without dead ends: 390 [2024-11-13 14:13:00,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:13:00,171 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 57 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:13:00,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 304 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 14:13:00,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-13 14:13:00,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 363. [2024-11-13 14:13:00,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 282 states have (on average 1.6453900709219857) internal successors, (464), 330 states have internal predecessors, (464), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-13 14:13:00,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 524 transitions. [2024-11-13 14:13:00,218 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 524 transitions. Word has length 45 [2024-11-13 14:13:00,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:13:00,218 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 524 transitions. [2024-11-13 14:13:00,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:13:00,219 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 524 transitions. [2024-11-13 14:13:00,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-13 14:13:00,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:13:00,219 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-13 14:13:00,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-13 14:13:00,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:13:00,421 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:13:00,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:13:00,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1372864370, now seen corresponding path program 1 times [2024-11-13 14:13:00,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:13:00,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6362624] [2024-11-13 14:13:00,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:13:00,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:13:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:00,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:13:00,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:00,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:13:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:00,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:13:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:00,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:13:00,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:00,607 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:13:00,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:13:00,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6362624] [2024-11-13 14:13:00,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6362624] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:13:00,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032606605] [2024-11-13 14:13:00,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:13:00,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:13:00,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:13:00,610 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:13:00,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 14:13:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:00,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:13:00,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:13:00,759 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:13:00,759 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:13:00,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032606605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:13:00,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:13:00,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-13 14:13:00,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315509847] [2024-11-13 14:13:00,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:13:00,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:13:00,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:13:00,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:13:00,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:13:00,762 INFO L87 Difference]: Start difference. First operand 363 states and 524 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:13:01,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:13:01,195 INFO L93 Difference]: Finished difference Result 550 states and 727 transitions. [2024-11-13 14:13:01,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:13:01,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 45 [2024-11-13 14:13:01,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:13:01,199 INFO L225 Difference]: With dead ends: 550 [2024-11-13 14:13:01,199 INFO L226 Difference]: Without dead ends: 378 [2024-11-13 14:13:01,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:13:01,200 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 159 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:13:01,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 548 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:13:01,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-13 14:13:01,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 347. [2024-11-13 14:13:01,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 267 states have (on average 1.651685393258427) internal successors, (441), 314 states have internal predecessors, (441), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-13 14:13:01,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 501 transitions. [2024-11-13 14:13:01,245 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 501 transitions. Word has length 45 [2024-11-13 14:13:01,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:13:01,245 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 501 transitions. [2024-11-13 14:13:01,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 14:13:01,246 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 501 transitions. [2024-11-13 14:13:01,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-13 14:13:01,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:13:01,246 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:13:01,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-13 14:13:01,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:13:01,448 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:13:01,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:13:01,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1372494964, now seen corresponding path program 1 times [2024-11-13 14:13:01,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:13:01,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025357158] [2024-11-13 14:13:01,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:13:01,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:13:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:13:01,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1794932236] [2024-11-13 14:13:01,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:13:01,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:13:01,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:13:01,473 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:13:01,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-13 14:13:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:01,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 14:13:01,547 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:13:01,883 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 14:13:01,883 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:13:02,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:13:02,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025357158] [2024-11-13 14:13:02,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:13:02,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794932236] [2024-11-13 14:13:02,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794932236] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:13:02,206 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:13:02,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-13 14:13:02,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855103597] [2024-11-13 14:13:02,206 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:13:02,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:13:02,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:13:02,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:13:02,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:13:02,208 INFO L87 Difference]: Start difference. First operand 347 states and 501 transitions. Second operand has 9 states, 8 states have (on average 3.875) internal successors, (31), 9 states have internal predecessors, (31), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 14:13:03,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:13:03,274 INFO L93 Difference]: Finished difference Result 472 states and 648 transitions. [2024-11-13 14:13:03,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:13:03,275 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 9 states have internal predecessors, (31), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 45 [2024-11-13 14:13:03,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:13:03,277 INFO L225 Difference]: With dead ends: 472 [2024-11-13 14:13:03,278 INFO L226 Difference]: Without dead ends: 471 [2024-11-13 14:13:03,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:13:03,279 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 419 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:13:03,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 602 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 14:13:03,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-11-13 14:13:03,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 426. [2024-11-13 14:13:03,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 337 states have (on average 1.6676557863501484) internal successors, (562), 384 states have internal predecessors, (562), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-13 14:13:03,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 640 transitions. [2024-11-13 14:13:03,363 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 640 transitions. Word has length 45 [2024-11-13 14:13:03,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:13:03,364 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 640 transitions. [2024-11-13 14:13:03,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 9 states have internal predecessors, (31), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 14:13:03,364 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 640 transitions. [2024-11-13 14:13:03,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-13 14:13:03,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:13:03,365 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:13:03,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-13 14:13:03,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:13:03,569 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:13:03,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:13:03,570 INFO L85 PathProgramCache]: Analyzing trace with hash -489393920, now seen corresponding path program 1 times [2024-11-13 14:13:03,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:13:03,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554520275] [2024-11-13 14:13:03,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:13:03,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:13:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:13:03,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [420660571] [2024-11-13 14:13:03,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:13:03,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:13:03,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:13:03,588 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:13:03,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-13 14:13:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:03,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:13:03,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:13:03,854 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:13:03,854 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:13:03,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:13:03,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554520275] [2024-11-13 14:13:03,855 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:13:03,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420660571] [2024-11-13 14:13:03,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420660571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:13:03,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:13:03,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:13:03,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775333737] [2024-11-13 14:13:03,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:13:03,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:13:03,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:13:03,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:13:03,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:13:03,856 INFO L87 Difference]: Start difference. First operand 426 states and 640 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:13:04,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:13:04,188 INFO L93 Difference]: Finished difference Result 455 states and 653 transitions. [2024-11-13 14:13:04,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:13:04,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2024-11-13 14:13:04,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:13:04,192 INFO L225 Difference]: With dead ends: 455 [2024-11-13 14:13:04,192 INFO L226 Difference]: Without dead ends: 454 [2024-11-13 14:13:04,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:13:04,194 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 92 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:13:04,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 240 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:13:04,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2024-11-13 14:13:04,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 426. [2024-11-13 14:13:04,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 337 states have (on average 1.6617210682492582) internal successors, (560), 384 states have internal predecessors, (560), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-13 14:13:04,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 638 transitions. [2024-11-13 14:13:04,267 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 638 transitions. Word has length 46 [2024-11-13 14:13:04,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:13:04,268 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 638 transitions. [2024-11-13 14:13:04,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:13:04,268 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 638 transitions. [2024-11-13 14:13:04,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-13 14:13:04,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:13:04,269 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:13:04,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-13 14:13:04,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-13 14:13:04,469 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:13:04,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:13:04,470 INFO L85 PathProgramCache]: Analyzing trace with hash -402328996, now seen corresponding path program 1 times [2024-11-13 14:13:04,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:13:04,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488282489] [2024-11-13 14:13:04,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:13:04,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:13:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:13:04,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1700684014] [2024-11-13 14:13:04,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:13:04,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:13:04,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:13:04,491 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:13:04,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-13 14:13:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:04,557 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 14:13:04,559 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:13:04,888 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 14:13:04,888 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:13:06,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:13:06,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488282489] [2024-11-13 14:13:06,415 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:13:06,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700684014] [2024-11-13 14:13:06,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700684014] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:13:06,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:13:06,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-13 14:13:06,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81088300] [2024-11-13 14:13:06,416 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:13:06,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:13:06,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:13:06,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:13:06,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:13:06,417 INFO L87 Difference]: Start difference. First operand 426 states and 638 transitions. Second operand has 9 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 14:13:07,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:13:07,414 INFO L93 Difference]: Finished difference Result 472 states and 643 transitions. [2024-11-13 14:13:07,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:13:07,415 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2024-11-13 14:13:07,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:13:07,418 INFO L225 Difference]: With dead ends: 472 [2024-11-13 14:13:07,418 INFO L226 Difference]: Without dead ends: 471 [2024-11-13 14:13:07,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:13:07,419 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 367 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:13:07,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 620 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 14:13:07,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-11-13 14:13:07,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 426. [2024-11-13 14:13:07,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 337 states have (on average 1.6528189910979227) internal successors, (557), 384 states have internal predecessors, (557), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-13 14:13:07,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 635 transitions. [2024-11-13 14:13:07,484 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 635 transitions. Word has length 46 [2024-11-13 14:13:07,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:13:07,485 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 635 transitions. [2024-11-13 14:13:07,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 14:13:07,485 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 635 transitions. [2024-11-13 14:13:07,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-13 14:13:07,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:13:07,486 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:13:07,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-13 14:13:07,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-13 14:13:07,690 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:13:07,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:13:07,690 INFO L85 PathProgramCache]: Analyzing trace with hash 412703094, now seen corresponding path program 1 times [2024-11-13 14:13:07,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:13:07,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271343308] [2024-11-13 14:13:07,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:13:07,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:13:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:13:07,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1615276454] [2024-11-13 14:13:07,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:13:07,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:13:07,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:13:07,709 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:13:07,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-13 14:13:07,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:07,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:13:07,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:13:08,030 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 14:13:08,031 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:13:10,416 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 14:13:10,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:13:10,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271343308] [2024-11-13 14:13:10,417 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:13:10,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615276454] [2024-11-13 14:13:10,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615276454] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:13:10,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:13:10,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-13 14:13:10,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755975781] [2024-11-13 14:13:10,418 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:13:10,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 14:13:10,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:13:10,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 14:13:10,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:13:10,419 INFO L87 Difference]: Start difference. First operand 426 states and 635 transitions. Second operand has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 14:13:14,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:13:14,459 INFO L93 Difference]: Finished difference Result 479 states and 647 transitions. [2024-11-13 14:13:14,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:13:14,460 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 47 [2024-11-13 14:13:14,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:13:14,462 INFO L225 Difference]: With dead ends: 479 [2024-11-13 14:13:14,462 INFO L226 Difference]: Without dead ends: 474 [2024-11-13 14:13:14,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:13:14,463 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 318 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:13:14,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 810 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 859 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-13 14:13:14,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-11-13 14:13:14,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 347. [2024-11-13 14:13:14,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 267 states have (on average 1.6029962546816479) internal successors, (428), 314 states have internal predecessors, (428), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-13 14:13:14,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 488 transitions. [2024-11-13 14:13:14,514 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 488 transitions. Word has length 47 [2024-11-13 14:13:14,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:13:14,515 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 488 transitions. [2024-11-13 14:13:14,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 14:13:14,515 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 488 transitions. [2024-11-13 14:13:14,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-13 14:13:14,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:13:14,516 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:13:14,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-13 14:13:14,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-13 14:13:14,717 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:13:14,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:13:14,717 INFO L85 PathProgramCache]: Analyzing trace with hash -91105890, now seen corresponding path program 1 times [2024-11-13 14:13:14,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:13:14,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952915163] [2024-11-13 14:13:14,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:13:14,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:13:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:13:14,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [60717238] [2024-11-13 14:13:14,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:13:14,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:13:14,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:13:14,738 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:13:14,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-13 14:13:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:14,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 14:13:14,815 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:13:15,140 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 14:13:15,140 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:13:20,455 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 14:13:20,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:13:20,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952915163] [2024-11-13 14:13:20,456 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:13:20,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60717238] [2024-11-13 14:13:20,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60717238] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:13:20,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:13:20,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-13 14:13:20,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29969496] [2024-11-13 14:13:20,457 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:13:20,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 14:13:20,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:13:20,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 14:13:20,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=120, Unknown=1, NotChecked=0, Total=156 [2024-11-13 14:13:20,459 INFO L87 Difference]: Start difference. First operand 347 states and 488 transitions. Second operand has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 14:13:23,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:13:23,450 INFO L93 Difference]: Finished difference Result 398 states and 502 transitions. [2024-11-13 14:13:23,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 14:13:23,452 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 48 [2024-11-13 14:13:23,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:13:23,454 INFO L225 Difference]: With dead ends: 398 [2024-11-13 14:13:23,454 INFO L226 Difference]: Without dead ends: 396 [2024-11-13 14:13:23,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=59, Invalid=180, Unknown=1, NotChecked=0, Total=240 [2024-11-13 14:13:23,455 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 574 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:13:23,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 937 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-13 14:13:23,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-13 14:13:23,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 348. [2024-11-13 14:13:23,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 268 states have (on average 1.585820895522388) internal successors, (425), 315 states have internal predecessors, (425), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-13 14:13:23,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 485 transitions. [2024-11-13 14:13:23,521 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 485 transitions. Word has length 48 [2024-11-13 14:13:23,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:13:23,522 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 485 transitions. [2024-11-13 14:13:23,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 14:13:23,526 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 485 transitions. [2024-11-13 14:13:23,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-13 14:13:23,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:13:23,527 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:13:23,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-13 14:13:23,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-13 14:13:23,728 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:13:23,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:13:23,728 INFO L85 PathProgramCache]: Analyzing trace with hash -162152370, now seen corresponding path program 1 times [2024-11-13 14:13:23,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:13:23,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000871063] [2024-11-13 14:13:23,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:13:23,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:13:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:23,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:13:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:24,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:13:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:24,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:13:24,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:24,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:13:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:24,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:13:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:24,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-13 14:13:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:24,053 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-13 14:13:24,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:13:24,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000871063] [2024-11-13 14:13:24,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000871063] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:13:24,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747648160] [2024-11-13 14:13:24,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:13:24,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:13:24,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:13:24,058 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:13:24,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-13 14:13:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:24,124 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:13:24,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:13:24,278 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 14:13:24,278 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:13:24,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747648160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:13:24,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:13:24,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-13 14:13:24,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188300178] [2024-11-13 14:13:24,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:13:24,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:13:24,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:13:24,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:13:24,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:13:24,281 INFO L87 Difference]: Start difference. First operand 348 states and 485 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 14:13:24,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:13:24,881 INFO L93 Difference]: Finished difference Result 375 states and 489 transitions. [2024-11-13 14:13:24,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:13:24,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 54 [2024-11-13 14:13:24,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:13:24,883 INFO L225 Difference]: With dead ends: 375 [2024-11-13 14:13:24,884 INFO L226 Difference]: Without dead ends: 374 [2024-11-13 14:13:24,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:13:24,885 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 260 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:13:24,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 276 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:13:24,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-13 14:13:24,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 348. [2024-11-13 14:13:24,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 268 states have (on average 1.5820895522388059) internal successors, (424), 315 states have internal predecessors, (424), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-13 14:13:24,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 484 transitions. [2024-11-13 14:13:24,934 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 484 transitions. Word has length 54 [2024-11-13 14:13:24,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:13:24,934 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 484 transitions. [2024-11-13 14:13:24,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 14:13:24,935 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 484 transitions. [2024-11-13 14:13:24,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-13 14:13:24,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:13:24,935 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:13:24,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-13 14:13:25,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-13 14:13:25,136 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:13:25,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:13:25,137 INFO L85 PathProgramCache]: Analyzing trace with hash -891917535, now seen corresponding path program 1 times [2024-11-13 14:13:25,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:13:25,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741037794] [2024-11-13 14:13:25,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:13:25,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:13:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:13:25,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1822425903] [2024-11-13 14:13:25,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:13:25,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:13:25,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:13:25,156 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:13:25,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-13 14:13:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:25,234 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 14:13:25,236 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:13:25,635 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 14:13:25,635 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:13:38,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:13:38,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741037794] [2024-11-13 14:13:38,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:13:38,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822425903] [2024-11-13 14:13:38,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822425903] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:13:38,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:13:38,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-13 14:13:38,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338809079] [2024-11-13 14:13:38,160 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:13:38,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:13:38,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:13:38,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:13:38,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=212, Unknown=3, NotChecked=0, Total=272 [2024-11-13 14:13:38,161 INFO L87 Difference]: Start difference. First operand 348 states and 484 transitions. Second operand has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-13 14:13:39,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:13:39,243 INFO L93 Difference]: Finished difference Result 470 states and 627 transitions. [2024-11-13 14:13:39,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:13:39,244 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 54 [2024-11-13 14:13:39,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:13:39,246 INFO L225 Difference]: With dead ends: 470 [2024-11-13 14:13:39,246 INFO L226 Difference]: Without dead ends: 469 [2024-11-13 14:13:39,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=108, Invalid=351, Unknown=3, NotChecked=0, Total=462 [2024-11-13 14:13:39,248 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 425 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:13:39,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 646 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 14:13:39,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-13 14:13:39,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 428. [2024-11-13 14:13:39,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 339 states have (on average 1.5722713864306785) internal successors, (533), 386 states have internal predecessors, (533), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-13 14:13:39,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 611 transitions. [2024-11-13 14:13:39,306 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 611 transitions. Word has length 54 [2024-11-13 14:13:39,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:13:39,306 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 611 transitions. [2024-11-13 14:13:39,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-13 14:13:39,306 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 611 transitions. [2024-11-13 14:13:39,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-13 14:13:39,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:13:39,307 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:13:39,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-13 14:13:39,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-13 14:13:39,512 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:13:39,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:13:39,512 INFO L85 PathProgramCache]: Analyzing trace with hash -731756068, now seen corresponding path program 1 times [2024-11-13 14:13:39,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:13:39,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651197504] [2024-11-13 14:13:39,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:13:39,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:13:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:13:39,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1907687557] [2024-11-13 14:13:39,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:13:39,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:13:39,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:13:39,555 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:13:39,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-13 14:13:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:39,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:13:39,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:13:39,763 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 14:13:39,763 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:13:39,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:13:39,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651197504] [2024-11-13 14:13:39,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:13:39,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907687557] [2024-11-13 14:13:39,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907687557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:13:39,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:13:39,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:13:39,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123728055] [2024-11-13 14:13:39,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:13:39,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:13:39,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:13:39,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:13:39,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:13:39,766 INFO L87 Difference]: Start difference. First operand 428 states and 611 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 14:13:40,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:13:40,342 INFO L93 Difference]: Finished difference Result 455 states and 615 transitions. [2024-11-13 14:13:40,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:13:40,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 55 [2024-11-13 14:13:40,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:13:40,345 INFO L225 Difference]: With dead ends: 455 [2024-11-13 14:13:40,345 INFO L226 Difference]: Without dead ends: 454 [2024-11-13 14:13:40,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:13:40,346 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 257 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:13:40,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 278 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:13:40,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2024-11-13 14:13:40,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 428. [2024-11-13 14:13:40,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 339 states have (on average 1.5693215339233038) internal successors, (532), 386 states have internal predecessors, (532), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-13 14:13:40,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 610 transitions. [2024-11-13 14:13:40,418 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 610 transitions. Word has length 55 [2024-11-13 14:13:40,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:13:40,418 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 610 transitions. [2024-11-13 14:13:40,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 14:13:40,418 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 610 transitions. [2024-11-13 14:13:40,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-13 14:13:40,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:13:40,419 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:13:40,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-13 14:13:40,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-13 14:13:40,620 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:13:40,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:13:40,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1879639720, now seen corresponding path program 1 times [2024-11-13 14:13:40,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:13:40,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016196253] [2024-11-13 14:13:40,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:13:40,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:13:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:13:40,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [134582446] [2024-11-13 14:13:40,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:13:40,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:13:40,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:13:40,639 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:13:40,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-13 14:13:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:40,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 14:13:40,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:13:41,075 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 14:13:41,075 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:13:54,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:13:54,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016196253] [2024-11-13 14:13:54,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:13:54,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134582446] [2024-11-13 14:13:54,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134582446] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:13:54,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:13:54,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-13 14:13:54,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870395690] [2024-11-13 14:13:54,555 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:13:54,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:13:54,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:13:54,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:13:54,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=217, Unknown=3, NotChecked=0, Total=272 [2024-11-13 14:13:54,556 INFO L87 Difference]: Start difference. First operand 428 states and 610 transitions. Second operand has 11 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-13 14:13:55,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:13:55,520 INFO L93 Difference]: Finished difference Result 470 states and 623 transitions. [2024-11-13 14:13:55,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:13:55,520 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 55 [2024-11-13 14:13:55,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:13:55,523 INFO L225 Difference]: With dead ends: 470 [2024-11-13 14:13:55,523 INFO L226 Difference]: Without dead ends: 469 [2024-11-13 14:13:55,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=108, Invalid=351, Unknown=3, NotChecked=0, Total=462 [2024-11-13 14:13:55,524 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 622 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:13:55,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 587 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 14:13:55,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-13 14:13:55,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 428. [2024-11-13 14:13:55,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 339 states have (on average 1.5604719764011798) internal successors, (529), 386 states have internal predecessors, (529), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-13 14:13:55,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 607 transitions. [2024-11-13 14:13:55,600 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 607 transitions. Word has length 55 [2024-11-13 14:13:55,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:13:55,600 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 607 transitions. [2024-11-13 14:13:55,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-13 14:13:55,601 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 607 transitions. [2024-11-13 14:13:55,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-13 14:13:55,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:13:55,603 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:13:55,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-13 14:13:55,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-13 14:13:55,808 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:13:55,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:13:55,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1860710915, now seen corresponding path program 1 times [2024-11-13 14:13:55,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:13:55,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591094998] [2024-11-13 14:13:55,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:13:55,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:13:55,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:13:55,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [211100157] [2024-11-13 14:13:55,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:13:55,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:13:55,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:13:55,828 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:13:55,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-13 14:13:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:13:55,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 14:13:55,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:13:56,276 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 14:13:56,277 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:14:00,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:14:00,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591094998] [2024-11-13 14:14:00,706 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:14:00,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211100157] [2024-11-13 14:14:00,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211100157] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:14:00,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:14:00,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-13 14:14:00,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97974678] [2024-11-13 14:14:00,706 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:14:00,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:14:00,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:14:00,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:14:00,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=214, Unknown=1, NotChecked=0, Total=272 [2024-11-13 14:14:00,708 INFO L87 Difference]: Start difference. First operand 428 states and 607 transitions. Second operand has 11 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-13 14:14:01,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:14:01,991 INFO L93 Difference]: Finished difference Result 476 states and 628 transitions. [2024-11-13 14:14:01,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:14:01,992 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 56 [2024-11-13 14:14:01,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:14:01,994 INFO L225 Difference]: With dead ends: 476 [2024-11-13 14:14:01,994 INFO L226 Difference]: Without dead ends: 475 [2024-11-13 14:14:01,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=112, Invalid=393, Unknown=1, NotChecked=0, Total=506 [2024-11-13 14:14:01,997 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 559 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:14:02,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 498 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 14:14:02,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-11-13 14:14:02,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 428. [2024-11-13 14:14:02,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 339 states have (on average 1.5575221238938053) internal successors, (528), 386 states have internal predecessors, (528), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-13 14:14:02,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 606 transitions. [2024-11-13 14:14:02,066 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 606 transitions. Word has length 56 [2024-11-13 14:14:02,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:14:02,067 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 606 transitions. [2024-11-13 14:14:02,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-13 14:14:02,067 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 606 transitions. [2024-11-13 14:14:02,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-13 14:14:02,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:14:02,068 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:14:02,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-13 14:14:02,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:02,269 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:14:02,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:14:02,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1847463610, now seen corresponding path program 1 times [2024-11-13 14:14:02,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:14:02,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262835964] [2024-11-13 14:14:02,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:02,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:14:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:14:02,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1399057988] [2024-11-13 14:14:02,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:02,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:02,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:14:02,289 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:14:02,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-13 14:14:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:02,361 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 14:14:02,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:14:02,777 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 14:14:02,777 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:14:08,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:14:08,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262835964] [2024-11-13 14:14:08,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:14:08,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399057988] [2024-11-13 14:14:08,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399057988] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:14:08,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:14:08,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-13 14:14:08,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405719696] [2024-11-13 14:14:08,110 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:14:08,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:14:08,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:14:08,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:14:08,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=214, Unknown=1, NotChecked=0, Total=272 [2024-11-13 14:14:08,111 INFO L87 Difference]: Start difference. First operand 428 states and 606 transitions. Second operand has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-13 14:14:09,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:14:09,276 INFO L93 Difference]: Finished difference Result 476 states and 627 transitions. [2024-11-13 14:14:09,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:14:09,276 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 57 [2024-11-13 14:14:09,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:14:09,278 INFO L225 Difference]: With dead ends: 476 [2024-11-13 14:14:09,278 INFO L226 Difference]: Without dead ends: 475 [2024-11-13 14:14:09,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=112, Invalid=393, Unknown=1, NotChecked=0, Total=506 [2024-11-13 14:14:09,279 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 421 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:14:09,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 554 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 14:14:09,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-11-13 14:14:09,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 416. [2024-11-13 14:14:09,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 328 states have (on average 1.5731707317073171) internal successors, (516), 375 states have internal predecessors, (516), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-13 14:14:09,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 592 transitions. [2024-11-13 14:14:09,343 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 592 transitions. Word has length 57 [2024-11-13 14:14:09,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:14:09,344 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 592 transitions. [2024-11-13 14:14:09,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-13 14:14:09,344 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 592 transitions. [2024-11-13 14:14:09,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 14:14:09,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:14:09,345 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:14:09,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-13 14:14:09,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:09,551 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:14:09,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:14:09,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1436797157, now seen corresponding path program 1 times [2024-11-13 14:14:09,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:14:09,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049219107] [2024-11-13 14:14:09,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:09,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:14:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:14:09,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1782069228] [2024-11-13 14:14:09,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:09,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:09,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:14:09,584 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:14:09,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-13 14:14:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:09,643 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 14:14:09,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:14:09,767 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:14:09,768 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:14:18,201 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:14:18,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:14:18,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049219107] [2024-11-13 14:14:18,201 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:14:18,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782069228] [2024-11-13 14:14:18,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782069228] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:14:18,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:14:18,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2024-11-13 14:14:18,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297818426] [2024-11-13 14:14:18,202 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:14:18,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:14:18,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:14:18,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:14:18,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=38, Unknown=2, NotChecked=0, Total=56 [2024-11-13 14:14:18,203 INFO L87 Difference]: Start difference. First operand 416 states and 592 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:14:20,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:14:20,355 INFO L93 Difference]: Finished difference Result 622 states and 818 transitions. [2024-11-13 14:14:20,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:14:20,355 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2024-11-13 14:14:20,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:14:20,358 INFO L225 Difference]: With dead ends: 622 [2024-11-13 14:14:20,358 INFO L226 Difference]: Without dead ends: 617 [2024-11-13 14:14:20,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 106 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=20, Invalid=50, Unknown=2, NotChecked=0, Total=72 [2024-11-13 14:14:20,359 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 343 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:14:20,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 703 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 14:14:20,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2024-11-13 14:14:20,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 508. [2024-11-13 14:14:20,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 411 states have (on average 1.6058394160583942) internal successors, (660), 458 states have internal predecessors, (660), 47 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-13 14:14:20,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 754 transitions. [2024-11-13 14:14:20,419 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 754 transitions. Word has length 58 [2024-11-13 14:14:20,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:14:20,420 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 754 transitions. [2024-11-13 14:14:20,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:14:20,420 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 754 transitions. [2024-11-13 14:14:20,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-13 14:14:20,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:14:20,421 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:14:20,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-13 14:14:20,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-13 14:14:20,623 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:14:20,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:14:20,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1591039004, now seen corresponding path program 1 times [2024-11-13 14:14:20,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:14:20,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724521810] [2024-11-13 14:14:20,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:20,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:14:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:14:20,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1504033290] [2024-11-13 14:14:20,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:20,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:20,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:14:20,650 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:14:20,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-13 14:14:20,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:20,737 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 14:14:20,739 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:14:20,934 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:14:20,934 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:14:29,375 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 14:14:29,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:14:29,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724521810] [2024-11-13 14:14:29,375 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:14:29,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504033290] [2024-11-13 14:14:29,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504033290] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:14:29,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:14:29,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2024-11-13 14:14:29,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034043557] [2024-11-13 14:14:29,376 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:14:29,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:14:29,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:14:29,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:14:29,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=38, Unknown=2, NotChecked=0, Total=56 [2024-11-13 14:14:29,377 INFO L87 Difference]: Start difference. First operand 508 states and 754 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:14:32,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:14:32,930 INFO L93 Difference]: Finished difference Result 619 states and 811 transitions. [2024-11-13 14:14:32,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:14:32,931 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2024-11-13 14:14:32,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:14:32,933 INFO L225 Difference]: With dead ends: 619 [2024-11-13 14:14:32,933 INFO L226 Difference]: Without dead ends: 618 [2024-11-13 14:14:32,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 108 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=20, Invalid=50, Unknown=2, NotChecked=0, Total=72 [2024-11-13 14:14:32,934 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 252 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:14:32,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 783 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-13 14:14:32,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2024-11-13 14:14:33,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 508. [2024-11-13 14:14:33,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 411 states have (on average 1.6009732360097324) internal successors, (658), 458 states have internal predecessors, (658), 47 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-13 14:14:33,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 752 transitions. [2024-11-13 14:14:33,027 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 752 transitions. Word has length 59 [2024-11-13 14:14:33,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:14:33,027 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 752 transitions. [2024-11-13 14:14:33,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:14:33,027 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 752 transitions. [2024-11-13 14:14:33,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-13 14:14:33,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:14:33,031 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:14:33,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-13 14:14:33,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:33,235 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:14:33,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:14:33,236 INFO L85 PathProgramCache]: Analyzing trace with hash 840276973, now seen corresponding path program 1 times [2024-11-13 14:14:33,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:14:33,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234831598] [2024-11-13 14:14:33,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:33,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:14:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:14:33,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [921478705] [2024-11-13 14:14:33,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:33,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:33,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:14:33,260 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:14:33,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-13 14:14:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:33,330 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:14:33,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:14:33,467 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-13 14:14:33,467 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:14:33,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:14:33,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234831598] [2024-11-13 14:14:33,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:14:33,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921478705] [2024-11-13 14:14:33,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921478705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:14:33,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:14:33,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:14:33,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530532429] [2024-11-13 14:14:33,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:14:33,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:14:33,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:14:33,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:14:33,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:14:33,469 INFO L87 Difference]: Start difference. First operand 508 states and 752 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 14:14:34,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:14:34,125 INFO L93 Difference]: Finished difference Result 585 states and 842 transitions. [2024-11-13 14:14:34,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:14:34,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 61 [2024-11-13 14:14:34,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:14:34,129 INFO L225 Difference]: With dead ends: 585 [2024-11-13 14:14:34,129 INFO L226 Difference]: Without dead ends: 582 [2024-11-13 14:14:34,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:14:34,130 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 216 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:14:34,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 208 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:14:34,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-13 14:14:34,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 564. [2024-11-13 14:14:34,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 459 states have (on average 1.5642701525054465) internal successors, (718), 506 states have internal predecessors, (718), 55 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-13 14:14:34,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 828 transitions. [2024-11-13 14:14:34,211 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 828 transitions. Word has length 61 [2024-11-13 14:14:34,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:14:34,212 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 828 transitions. [2024-11-13 14:14:34,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 14:14:34,212 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 828 transitions. [2024-11-13 14:14:34,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 14:14:34,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:14:34,213 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:14:34,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-13 14:14:34,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:34,415 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:14:34,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:14:34,415 INFO L85 PathProgramCache]: Analyzing trace with hash 278782498, now seen corresponding path program 1 times [2024-11-13 14:14:34,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:14:34,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30876052] [2024-11-13 14:14:34,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:34,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:14:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:14:34,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [661794358] [2024-11-13 14:14:34,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:34,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:34,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:14:34,434 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:14:34,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-13 14:14:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:34,512 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:14:34,514 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:14:34,637 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-13 14:14:34,637 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:14:34,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:14:34,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30876052] [2024-11-13 14:14:34,638 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:14:34,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661794358] [2024-11-13 14:14:34,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661794358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:14:34,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:14:34,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:14:34,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286786506] [2024-11-13 14:14:34,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:14:34,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:14:34,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:14:34,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:14:34,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:14:34,640 INFO L87 Difference]: Start difference. First operand 564 states and 828 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 14:14:35,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:14:35,163 INFO L93 Difference]: Finished difference Result 583 states and 836 transitions. [2024-11-13 14:14:35,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:14:35,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2024-11-13 14:14:35,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:14:35,167 INFO L225 Difference]: With dead ends: 583 [2024-11-13 14:14:35,167 INFO L226 Difference]: Without dead ends: 582 [2024-11-13 14:14:35,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:14:35,168 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 200 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:14:35,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 280 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:14:35,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-13 14:14:35,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 564. [2024-11-13 14:14:35,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 459 states have (on average 1.5599128540305012) internal successors, (716), 506 states have internal predecessors, (716), 55 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-13 14:14:35,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 826 transitions. [2024-11-13 14:14:35,235 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 826 transitions. Word has length 62 [2024-11-13 14:14:35,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:14:35,235 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 826 transitions. [2024-11-13 14:14:35,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 14:14:35,236 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 826 transitions. [2024-11-13 14:14:35,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 14:14:35,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:14:35,237 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:14:35,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-13 14:14:35,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:35,441 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:14:35,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:14:35,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1134369076, now seen corresponding path program 1 times [2024-11-13 14:14:35,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:14:35,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534203673] [2024-11-13 14:14:35,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:35,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:14:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:35,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:14:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:35,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:14:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:35,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:14:35,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:35,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:14:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:35,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:14:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:35,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-13 14:14:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:35,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 14:14:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:35,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:14:35,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:35,578 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:14:35,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:14:35,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534203673] [2024-11-13 14:14:35,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534203673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:14:35,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:14:35,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:14:35,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70273078] [2024-11-13 14:14:35,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:14:35,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:14:35,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:14:35,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:14:35,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:14:35,584 INFO L87 Difference]: Start difference. First operand 564 states and 826 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 14:14:36,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:14:36,518 INFO L93 Difference]: Finished difference Result 586 states and 838 transitions. [2024-11-13 14:14:36,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:14:36,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 68 [2024-11-13 14:14:36,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:14:36,520 INFO L225 Difference]: With dead ends: 586 [2024-11-13 14:14:36,521 INFO L226 Difference]: Without dead ends: 584 [2024-11-13 14:14:36,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:14:36,521 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 227 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:14:36,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 280 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 14:14:36,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2024-11-13 14:14:36,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 566. [2024-11-13 14:14:36,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 461 states have (on average 1.5531453362255965) internal successors, (716), 508 states have internal predecessors, (716), 55 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-13 14:14:36,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 826 transitions. [2024-11-13 14:14:36,577 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 826 transitions. Word has length 68 [2024-11-13 14:14:36,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:14:36,578 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 826 transitions. [2024-11-13 14:14:36,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 14:14:36,578 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 826 transitions. [2024-11-13 14:14:36,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 14:14:36,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:14:36,579 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:14:36,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-13 14:14:36,579 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:14:36,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:14:36,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1480574826, now seen corresponding path program 1 times [2024-11-13 14:14:36,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:14:36,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383335736] [2024-11-13 14:14:36,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:36,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:14:36,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:36,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:14:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:36,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:14:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:36,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:14:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:36,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:14:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:36,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 14:14:36,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:36,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:14:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:36,907 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-13 14:14:36,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:14:36,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383335736] [2024-11-13 14:14:36,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383335736] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:14:36,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189099333] [2024-11-13 14:14:36,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:36,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:36,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:14:36,911 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:14:36,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-13 14:14:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:36,984 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 14:14:36,985 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:14:37,187 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 14:14:37,187 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:14:37,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189099333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:14:37,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:14:37,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2024-11-13 14:14:37,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225605307] [2024-11-13 14:14:37,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:14:37,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:14:37,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:14:37,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:14:37,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:14:37,189 INFO L87 Difference]: Start difference. First operand 566 states and 826 transitions. Second operand has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 14:14:38,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:14:38,263 INFO L93 Difference]: Finished difference Result 619 states and 834 transitions. [2024-11-13 14:14:38,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:14:38,264 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 67 [2024-11-13 14:14:38,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:14:38,267 INFO L225 Difference]: With dead ends: 619 [2024-11-13 14:14:38,267 INFO L226 Difference]: Without dead ends: 618 [2024-11-13 14:14:38,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-11-13 14:14:38,268 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 433 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:14:38,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 585 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 14:14:38,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2024-11-13 14:14:38,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 566. [2024-11-13 14:14:38,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 461 states have (on average 1.5509761388286334) internal successors, (715), 508 states have internal predecessors, (715), 55 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-13 14:14:38,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 825 transitions. [2024-11-13 14:14:38,349 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 825 transitions. Word has length 67 [2024-11-13 14:14:38,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:14:38,349 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 825 transitions. [2024-11-13 14:14:38,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 14:14:38,349 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 825 transitions. [2024-11-13 14:14:38,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 14:14:38,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:14:38,350 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:14:38,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-13 14:14:38,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:38,551 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:14:38,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:14:38,551 INFO L85 PathProgramCache]: Analyzing trace with hash 805703104, now seen corresponding path program 1 times [2024-11-13 14:14:38,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:14:38,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66166063] [2024-11-13 14:14:38,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:38,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:14:38,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:38,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:14:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:38,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:14:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:38,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:14:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:38,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:14:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:38,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:14:38,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:38,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-13 14:14:38,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:38,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 14:14:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:38,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:14:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:38,695 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:14:38,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:14:38,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66166063] [2024-11-13 14:14:38,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66166063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:14:38,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:14:38,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:14:38,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442255038] [2024-11-13 14:14:38,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:14:38,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:14:38,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:14:38,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:14:38,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:14:38,697 INFO L87 Difference]: Start difference. First operand 566 states and 825 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:14:39,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:14:39,268 INFO L93 Difference]: Finished difference Result 595 states and 833 transitions. [2024-11-13 14:14:39,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:14:39,270 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2024-11-13 14:14:39,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:14:39,273 INFO L225 Difference]: With dead ends: 595 [2024-11-13 14:14:39,273 INFO L226 Difference]: Without dead ends: 593 [2024-11-13 14:14:39,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:14:39,274 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 313 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:14:39,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 415 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:14:39,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-11-13 14:14:39,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 566. [2024-11-13 14:14:39,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 461 states have (on average 1.5466377440347072) internal successors, (713), 508 states have internal predecessors, (713), 55 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-13 14:14:39,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 823 transitions. [2024-11-13 14:14:39,356 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 823 transitions. Word has length 69 [2024-11-13 14:14:39,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:14:39,357 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 823 transitions. [2024-11-13 14:14:39,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:14:39,357 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 823 transitions. [2024-11-13 14:14:39,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 14:14:39,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:14:39,358 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:14:39,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-13 14:14:39,358 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:14:39,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:14:39,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1346820544, now seen corresponding path program 1 times [2024-11-13 14:14:39,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:14:39,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969803410] [2024-11-13 14:14:39,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:39,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:14:39,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:14:39,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1542316461] [2024-11-13 14:14:39,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:39,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:39,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:14:39,377 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:14:39,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-13 14:14:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:39,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 14:14:39,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:14:39,569 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 14:14:39,569 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:14:39,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:14:39,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969803410] [2024-11-13 14:14:39,609 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:14:39,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542316461] [2024-11-13 14:14:39,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542316461] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:14:39,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:14:39,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-13 14:14:39,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950033464] [2024-11-13 14:14:39,609 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:14:39,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:14:39,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:14:39,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:14:39,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:14:39,610 INFO L87 Difference]: Start difference. First operand 566 states and 823 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 14:14:40,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:14:40,295 INFO L93 Difference]: Finished difference Result 609 states and 839 transitions. [2024-11-13 14:14:40,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 14:14:40,295 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 68 [2024-11-13 14:14:40,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:14:40,297 INFO L225 Difference]: With dead ends: 609 [2024-11-13 14:14:40,298 INFO L226 Difference]: Without dead ends: 608 [2024-11-13 14:14:40,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:14:40,298 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 360 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:14:40,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 331 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:14:40,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-11-13 14:14:40,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 566. [2024-11-13 14:14:40,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 461 states have (on average 1.5379609544468547) internal successors, (709), 508 states have internal predecessors, (709), 55 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-13 14:14:40,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 819 transitions. [2024-11-13 14:14:40,376 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 819 transitions. Word has length 68 [2024-11-13 14:14:40,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:14:40,376 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 819 transitions. [2024-11-13 14:14:40,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 14:14:40,376 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 819 transitions. [2024-11-13 14:14:40,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-13 14:14:40,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:14:40,377 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:14:40,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-13 14:14:40,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:40,577 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:14:40,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:14:40,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1186573487, now seen corresponding path program 1 times [2024-11-13 14:14:40,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:14:40,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520117485] [2024-11-13 14:14:40,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:40,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:14:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:40,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:14:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:40,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:14:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:40,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:14:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:40,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:14:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:40,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:14:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:40,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-13 14:14:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:40,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 14:14:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:40,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:14:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:40,686 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:14:40,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:14:40,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520117485] [2024-11-13 14:14:40,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520117485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:14:40,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:14:40,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:14:40,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705065066] [2024-11-13 14:14:40,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:14:40,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:14:40,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:14:40,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:14:40,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:14:40,689 INFO L87 Difference]: Start difference. First operand 566 states and 819 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:14:40,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:14:40,893 INFO L93 Difference]: Finished difference Result 801 states and 1199 transitions. [2024-11-13 14:14:40,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:14:40,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2024-11-13 14:14:40,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:14:40,898 INFO L225 Difference]: With dead ends: 801 [2024-11-13 14:14:40,898 INFO L226 Difference]: Without dead ends: 800 [2024-11-13 14:14:40,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:14:40,899 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 22 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:14:40,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 223 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:14:40,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-11-13 14:14:41,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 745. [2024-11-13 14:14:41,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 611 states have (on average 1.553191489361702) internal successors, (949), 658 states have internal predecessors, (949), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-13 14:14:41,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1117 transitions. [2024-11-13 14:14:41,037 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1117 transitions. Word has length 71 [2024-11-13 14:14:41,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:14:41,037 INFO L471 AbstractCegarLoop]: Abstraction has 745 states and 1117 transitions. [2024-11-13 14:14:41,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:14:41,038 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1117 transitions. [2024-11-13 14:14:41,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-13 14:14:41,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:14:41,039 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:14:41,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-13 14:14:41,039 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:14:41,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:14:41,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1870927431, now seen corresponding path program 1 times [2024-11-13 14:14:41,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:14:41,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050510666] [2024-11-13 14:14:41,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:41,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:14:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:41,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:14:41,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:41,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:14:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:41,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:14:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:41,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:14:41,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:41,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:14:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:41,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-13 14:14:41,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:41,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 14:14:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:41,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:14:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:41,159 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:14:41,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:14:41,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050510666] [2024-11-13 14:14:41,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050510666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:14:41,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:14:41,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:14:41,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527606058] [2024-11-13 14:14:41,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:14:41,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:14:41,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:14:41,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:14:41,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:14:41,161 INFO L87 Difference]: Start difference. First operand 745 states and 1117 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:14:41,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:14:41,868 INFO L93 Difference]: Finished difference Result 761 states and 1117 transitions. [2024-11-13 14:14:41,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:14:41,869 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2024-11-13 14:14:41,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:14:41,873 INFO L225 Difference]: With dead ends: 761 [2024-11-13 14:14:41,873 INFO L226 Difference]: Without dead ends: 760 [2024-11-13 14:14:41,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:14:41,874 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 206 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:14:41,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 354 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:14:41,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2024-11-13 14:14:42,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 745. [2024-11-13 14:14:42,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 611 states have (on average 1.5515548281505729) internal successors, (948), 658 states have internal predecessors, (948), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-13 14:14:42,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1116 transitions. [2024-11-13 14:14:42,013 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1116 transitions. Word has length 72 [2024-11-13 14:14:42,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:14:42,014 INFO L471 AbstractCegarLoop]: Abstraction has 745 states and 1116 transitions. [2024-11-13 14:14:42,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:14:42,014 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1116 transitions. [2024-11-13 14:14:42,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-13 14:14:42,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:14:42,016 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:14:42,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-13 14:14:42,016 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:14:42,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:14:42,016 INFO L85 PathProgramCache]: Analyzing trace with hash 2130791921, now seen corresponding path program 1 times [2024-11-13 14:14:42,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:14:42,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961994684] [2024-11-13 14:14:42,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:42,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:14:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:42,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:14:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:42,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:14:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:42,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:14:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:42,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:14:42,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:42,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:14:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:42,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-13 14:14:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:42,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 14:14:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:42,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:14:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:42,160 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:14:42,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:14:42,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961994684] [2024-11-13 14:14:42,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961994684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:14:42,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:14:42,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:14:42,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809253017] [2024-11-13 14:14:42,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:14:42,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:14:42,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:14:42,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:14:42,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:14:42,163 INFO L87 Difference]: Start difference. First operand 745 states and 1116 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:14:42,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:14:42,620 INFO L93 Difference]: Finished difference Result 830 states and 1205 transitions. [2024-11-13 14:14:42,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:14:42,621 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2024-11-13 14:14:42,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:14:42,624 INFO L225 Difference]: With dead ends: 830 [2024-11-13 14:14:42,625 INFO L226 Difference]: Without dead ends: 826 [2024-11-13 14:14:42,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:14:42,628 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 79 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:14:42,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 326 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:14:42,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2024-11-13 14:14:42,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 773. [2024-11-13 14:14:42,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 639 states have (on average 1.5336463223787167) internal successors, (980), 686 states have internal predecessors, (980), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-13 14:14:42,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1148 transitions. [2024-11-13 14:14:42,751 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1148 transitions. Word has length 73 [2024-11-13 14:14:42,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:14:42,752 INFO L471 AbstractCegarLoop]: Abstraction has 773 states and 1148 transitions. [2024-11-13 14:14:42,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:14:42,752 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1148 transitions. [2024-11-13 14:14:42,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-13 14:14:42,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:14:42,753 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:14:42,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-13 14:14:42,754 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:14:42,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:14:42,754 INFO L85 PathProgramCache]: Analyzing trace with hash 969317713, now seen corresponding path program 1 times [2024-11-13 14:14:42,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:14:42,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821081673] [2024-11-13 14:14:42,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:42,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:14:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:14:42,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1269400087] [2024-11-13 14:14:42,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:42,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:42,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:14:42,778 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:14:42,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-13 14:14:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:42,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 14:14:42,851 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:14:43,053 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-13 14:14:43,053 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:14:43,261 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-13 14:14:43,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:14:43,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821081673] [2024-11-13 14:14:43,262 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:14:43,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269400087] [2024-11-13 14:14:43,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269400087] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:14:43,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:14:43,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-13 14:14:43,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530794460] [2024-11-13 14:14:43,262 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:14:43,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:14:43,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:14:43,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:14:43,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:14:43,265 INFO L87 Difference]: Start difference. First operand 773 states and 1148 transitions. Second operand has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 12 states have internal predecessors, (83), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-13 14:14:45,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:14:45,401 INFO L93 Difference]: Finished difference Result 921 states and 1249 transitions. [2024-11-13 14:14:45,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 14:14:45,402 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 12 states have internal predecessors, (83), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 74 [2024-11-13 14:14:45,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:14:45,407 INFO L225 Difference]: With dead ends: 921 [2024-11-13 14:14:45,407 INFO L226 Difference]: Without dead ends: 918 [2024-11-13 14:14:45,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=184, Invalid=416, Unknown=0, NotChecked=0, Total=600 [2024-11-13 14:14:45,411 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 893 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:14:45,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 676 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-13 14:14:45,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2024-11-13 14:14:45,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 821. [2024-11-13 14:14:45,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 681 states have (on average 1.5095447870778267) internal successors, (1028), 728 states have internal predecessors, (1028), 90 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-13 14:14:45,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1208 transitions. [2024-11-13 14:14:45,545 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1208 transitions. Word has length 74 [2024-11-13 14:14:45,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:14:45,546 INFO L471 AbstractCegarLoop]: Abstraction has 821 states and 1208 transitions. [2024-11-13 14:14:45,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 12 states have internal predecessors, (83), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-13 14:14:45,546 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1208 transitions. [2024-11-13 14:14:45,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-13 14:14:45,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:14:45,547 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:14:45,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-13 14:14:45,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-13 14:14:45,747 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:14:45,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:14:45,748 INFO L85 PathProgramCache]: Analyzing trace with hash -15921858, now seen corresponding path program 1 times [2024-11-13 14:14:45,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:14:45,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149162269] [2024-11-13 14:14:45,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:45,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:14:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:14:45,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1896465062] [2024-11-13 14:14:45,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:45,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:45,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:14:45,768 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:14:45,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-13 14:14:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:45,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 14:14:45,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:14:46,026 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-13 14:14:46,026 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:14:46,601 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-13 14:14:46,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:14:46,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149162269] [2024-11-13 14:14:46,602 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:14:46,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896465062] [2024-11-13 14:14:46,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896465062] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:14:46,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:14:46,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-13 14:14:46,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956614938] [2024-11-13 14:14:46,602 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:14:46,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:14:46,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:14:46,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:14:46,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:14:46,603 INFO L87 Difference]: Start difference. First operand 821 states and 1208 transitions. Second operand has 12 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 12 states have internal predecessors, (85), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-13 14:14:48,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:14:48,711 INFO L93 Difference]: Finished difference Result 1147 states and 1580 transitions. [2024-11-13 14:14:48,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-13 14:14:48,712 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 12 states have internal predecessors, (85), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 75 [2024-11-13 14:14:48,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:14:48,714 INFO L225 Difference]: With dead ends: 1147 [2024-11-13 14:14:48,714 INFO L226 Difference]: Without dead ends: 1144 [2024-11-13 14:14:48,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=385, Invalid=1021, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 14:14:48,715 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 1363 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:14:48,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1363 Valid, 526 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 14:14:48,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2024-11-13 14:14:48,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1019. [2024-11-13 14:14:48,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 855 states have (on average 1.4970760233918128) internal successors, (1280), 902 states have internal predecessors, (1280), 114 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-13 14:14:48,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1508 transitions. [2024-11-13 14:14:48,856 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1508 transitions. Word has length 75 [2024-11-13 14:14:48,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:14:48,857 INFO L471 AbstractCegarLoop]: Abstraction has 1019 states and 1508 transitions. [2024-11-13 14:14:48,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 12 states have internal predecessors, (85), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-13 14:14:48,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1508 transitions. [2024-11-13 14:14:48,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-13 14:14:48,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:14:48,858 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:14:48,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-13 14:14:49,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:49,059 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:14:49,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:14:49,060 INFO L85 PathProgramCache]: Analyzing trace with hash -672235696, now seen corresponding path program 1 times [2024-11-13 14:14:49,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:14:49,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34053993] [2024-11-13 14:14:49,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:49,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:14:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:49,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:14:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:49,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:14:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:49,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:14:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:49,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:14:49,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:49,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 14:14:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:49,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:14:49,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:49,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 14:14:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:49,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 14:14:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:49,210 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:14:49,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:14:49,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34053993] [2024-11-13 14:14:49,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34053993] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:14:49,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926339372] [2024-11-13 14:14:49,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:49,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:49,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:14:49,213 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:14:49,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-13 14:14:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:49,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:14:49,293 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:14:49,396 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:14:49,397 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:14:49,579 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:14:49,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926339372] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:14:49,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:14:49,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-13 14:14:49,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192024466] [2024-11-13 14:14:49,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:14:49,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:14:49,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:14:49,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:14:49,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:14:49,581 INFO L87 Difference]: Start difference. First operand 1019 states and 1508 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-13 14:14:51,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:14:51,868 INFO L93 Difference]: Finished difference Result 1119 states and 1545 transitions. [2024-11-13 14:14:51,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 14:14:51,869 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 81 [2024-11-13 14:14:51,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:14:51,874 INFO L225 Difference]: With dead ends: 1119 [2024-11-13 14:14:51,875 INFO L226 Difference]: Without dead ends: 1117 [2024-11-13 14:14:51,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=383, Unknown=0, NotChecked=0, Total=552 [2024-11-13 14:14:51,876 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 942 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:14:51,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 634 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 14:14:51,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2024-11-13 14:14:52,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 1022. [2024-11-13 14:14:52,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 857 states have (on average 1.4725787631271878) internal successors, (1262), 903 states have internal predecessors, (1262), 116 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-13 14:14:52,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1494 transitions. [2024-11-13 14:14:52,049 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1494 transitions. Word has length 81 [2024-11-13 14:14:52,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:14:52,050 INFO L471 AbstractCegarLoop]: Abstraction has 1022 states and 1494 transitions. [2024-11-13 14:14:52,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-13 14:14:52,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1494 transitions. [2024-11-13 14:14:52,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-13 14:14:52,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:14:52,051 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:14:52,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-13 14:14:52,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:52,251 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:14:52,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:14:52,252 INFO L85 PathProgramCache]: Analyzing trace with hash 635530020, now seen corresponding path program 1 times [2024-11-13 14:14:52,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:14:52,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298798339] [2024-11-13 14:14:52,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:52,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:14:52,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:52,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:14:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:52,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:14:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:52,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:14:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:52,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:14:52,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:52,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 14:14:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:52,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:14:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:52,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 14:14:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:52,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 14:14:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:52,389 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:14:52,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:14:52,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298798339] [2024-11-13 14:14:52,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298798339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:14:52,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:14:52,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:14:52,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739908982] [2024-11-13 14:14:52,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:14:52,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:14:52,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:14:52,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:14:52,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:14:52,392 INFO L87 Difference]: Start difference. First operand 1022 states and 1494 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 14:14:53,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:14:53,193 INFO L93 Difference]: Finished difference Result 1051 states and 1502 transitions. [2024-11-13 14:14:53,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 14:14:53,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 82 [2024-11-13 14:14:53,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:14:53,198 INFO L225 Difference]: With dead ends: 1051 [2024-11-13 14:14:53,198 INFO L226 Difference]: Without dead ends: 1049 [2024-11-13 14:14:53,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:14:53,199 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 299 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:14:53,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 385 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:14:53,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2024-11-13 14:14:53,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 1022. [2024-11-13 14:14:53,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 857 states have (on average 1.453908984830805) internal successors, (1246), 903 states have internal predecessors, (1246), 116 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-13 14:14:53,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1478 transitions. [2024-11-13 14:14:53,340 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1478 transitions. Word has length 82 [2024-11-13 14:14:53,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:14:53,340 INFO L471 AbstractCegarLoop]: Abstraction has 1022 states and 1478 transitions. [2024-11-13 14:14:53,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 14:14:53,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1478 transitions. [2024-11-13 14:14:53,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-13 14:14:53,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:14:53,341 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:14:53,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-13 14:14:53,342 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:14:53,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:14:53,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1234828060, now seen corresponding path program 1 times [2024-11-13 14:14:53,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:14:53,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42387521] [2024-11-13 14:14:53,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:53,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:14:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:14:53,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1844519937] [2024-11-13 14:14:53,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:53,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:53,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:14:53,362 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:14:53,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-13 14:14:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:53,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:14:53,441 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:14:53,678 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:14:53,678 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:14:53,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:14:53,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42387521] [2024-11-13 14:14:53,679 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:14:53,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844519937] [2024-11-13 14:14:53,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844519937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:14:53,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:14:53,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:14:53,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344068928] [2024-11-13 14:14:53,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:14:53,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:14:53,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:14:53,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:14:53,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:14:53,680 INFO L87 Difference]: Start difference. First operand 1022 states and 1478 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:14:54,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:14:54,129 INFO L93 Difference]: Finished difference Result 1047 states and 1485 transitions. [2024-11-13 14:14:54,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:14:54,130 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2024-11-13 14:14:54,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:14:54,134 INFO L225 Difference]: With dead ends: 1047 [2024-11-13 14:14:54,134 INFO L226 Difference]: Without dead ends: 1044 [2024-11-13 14:14:54,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:14:54,135 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 94 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:14:54,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 330 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:14:54,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2024-11-13 14:14:54,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1022. [2024-11-13 14:14:54,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 857 states have (on average 1.4492415402567094) internal successors, (1242), 903 states have internal predecessors, (1242), 116 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-13 14:14:54,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1474 transitions. [2024-11-13 14:14:54,254 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1474 transitions. Word has length 82 [2024-11-13 14:14:54,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:14:54,255 INFO L471 AbstractCegarLoop]: Abstraction has 1022 states and 1474 transitions. [2024-11-13 14:14:54,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:14:54,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1474 transitions. [2024-11-13 14:14:54,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-13 14:14:54,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:14:54,256 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:14:54,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-13 14:14:54,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:54,456 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:14:54,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:14:54,457 INFO L85 PathProgramCache]: Analyzing trace with hash 375035960, now seen corresponding path program 1 times [2024-11-13 14:14:54,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:14:54,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028287153] [2024-11-13 14:14:54,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:54,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:14:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:14:54,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [307947662] [2024-11-13 14:14:54,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:54,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:54,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:14:54,484 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:14:54,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-13 14:14:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:54,558 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:14:54,559 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:14:54,783 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:14:54,783 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:14:55,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:14:55,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028287153] [2024-11-13 14:14:55,341 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:14:55,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307947662] [2024-11-13 14:14:55,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307947662] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:14:55,341 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:14:55,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-13 14:14:55,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870743437] [2024-11-13 14:14:55,342 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:14:55,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:14:55,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:14:55,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:14:55,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:14:55,343 INFO L87 Difference]: Start difference. First operand 1022 states and 1474 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:14:55,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:14:55,903 INFO L93 Difference]: Finished difference Result 1150 states and 1617 transitions. [2024-11-13 14:14:55,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:14:55,904 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 83 [2024-11-13 14:14:55,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:14:55,909 INFO L225 Difference]: With dead ends: 1150 [2024-11-13 14:14:55,909 INFO L226 Difference]: Without dead ends: 1149 [2024-11-13 14:14:55,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:14:55,910 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 173 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:14:55,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 396 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:14:55,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2024-11-13 14:14:56,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 1031. [2024-11-13 14:14:56,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 866 states have (on average 1.4457274826789839) internal successors, (1252), 912 states have internal predecessors, (1252), 116 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-13 14:14:56,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1484 transitions. [2024-11-13 14:14:56,116 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1484 transitions. Word has length 83 [2024-11-13 14:14:56,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:14:56,117 INFO L471 AbstractCegarLoop]: Abstraction has 1031 states and 1484 transitions. [2024-11-13 14:14:56,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:14:56,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1484 transitions. [2024-11-13 14:14:56,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-13 14:14:56,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:14:56,118 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:14:56,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-13 14:14:56,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:56,320 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:14:56,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:14:56,320 INFO L85 PathProgramCache]: Analyzing trace with hash 859103701, now seen corresponding path program 1 times [2024-11-13 14:14:56,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:14:56,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179130137] [2024-11-13 14:14:56,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:56,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:14:56,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:56,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:14:56,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:56,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:14:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:56,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:14:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:56,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:14:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:56,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 14:14:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:56,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:14:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:56,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 14:14:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:56,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 14:14:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:56,458 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:14:56,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:14:56,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179130137] [2024-11-13 14:14:56,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179130137] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:14:56,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842166915] [2024-11-13 14:14:56,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:56,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:56,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:14:56,462 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:14:56,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-13 14:14:56,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:56,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 14:14:56,547 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:14:56,689 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:14:56,689 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:14:56,934 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:14:56,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842166915] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:14:56,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:14:56,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 15 [2024-11-13 14:14:56,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352972556] [2024-11-13 14:14:56,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:14:56,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 14:14:56,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:14:56,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 14:14:56,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:14:56,936 INFO L87 Difference]: Start difference. First operand 1031 states and 1484 transitions. Second operand has 16 states, 15 states have (on average 8.866666666666667) internal successors, (133), 16 states have internal predecessors, (133), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-13 14:14:58,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:14:58,152 INFO L93 Difference]: Finished difference Result 1052 states and 1493 transitions. [2024-11-13 14:14:58,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-13 14:14:58,153 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.866666666666667) internal successors, (133), 16 states have internal predecessors, (133), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) Word has length 85 [2024-11-13 14:14:58,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:14:58,158 INFO L225 Difference]: With dead ends: 1052 [2024-11-13 14:14:58,158 INFO L226 Difference]: Without dead ends: 1049 [2024-11-13 14:14:58,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 14:14:58,160 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 958 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:14:58,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 292 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:14:58,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2024-11-13 14:14:58,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 1029. [2024-11-13 14:14:58,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 866 states have (on average 1.4237875288683604) internal successors, (1233), 910 states have internal predecessors, (1233), 116 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-13 14:14:58,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1465 transitions. [2024-11-13 14:14:58,310 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1465 transitions. Word has length 85 [2024-11-13 14:14:58,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:14:58,310 INFO L471 AbstractCegarLoop]: Abstraction has 1029 states and 1465 transitions. [2024-11-13 14:14:58,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.866666666666667) internal successors, (133), 16 states have internal predecessors, (133), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-13 14:14:58,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1465 transitions. [2024-11-13 14:14:58,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-13 14:14:58,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:14:58,312 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:14:58,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-11-13 14:14:58,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-13 14:14:58,512 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:14:58,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:14:58,513 INFO L85 PathProgramCache]: Analyzing trace with hash -367690246, now seen corresponding path program 1 times [2024-11-13 14:14:58,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:14:58,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390794558] [2024-11-13 14:14:58,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:58,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:14:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:14:58,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1306567553] [2024-11-13 14:14:58,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:14:58,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:14:58,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:14:58,534 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:14:58,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-13 14:14:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:14:58,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 14:14:58,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:14:59,067 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:14:59,067 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:14:59,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:14:59,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390794558] [2024-11-13 14:14:59,068 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:14:59,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306567553] [2024-11-13 14:14:59,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306567553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:14:59,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:14:59,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:14:59,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069165558] [2024-11-13 14:14:59,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:14:59,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:14:59,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:14:59,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:14:59,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:14:59,070 INFO L87 Difference]: Start difference. First operand 1029 states and 1465 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:15:00,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:00,122 INFO L93 Difference]: Finished difference Result 1051 states and 1471 transitions. [2024-11-13 14:15:00,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:15:00,123 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 85 [2024-11-13 14:15:00,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:00,133 INFO L225 Difference]: With dead ends: 1051 [2024-11-13 14:15:00,134 INFO L226 Difference]: Without dead ends: 1050 [2024-11-13 14:15:00,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:15:00,136 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 65 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:00,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 413 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 14:15:00,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2024-11-13 14:15:00,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 1029. [2024-11-13 14:15:00,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 866 states have (on average 1.4226327944572748) internal successors, (1232), 910 states have internal predecessors, (1232), 116 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-13 14:15:00,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1464 transitions. [2024-11-13 14:15:00,296 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1464 transitions. Word has length 85 [2024-11-13 14:15:00,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:00,297 INFO L471 AbstractCegarLoop]: Abstraction has 1029 states and 1464 transitions. [2024-11-13 14:15:00,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:15:00,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1464 transitions. [2024-11-13 14:15:00,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-13 14:15:00,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:00,298 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:00,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-13 14:15:00,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-13 14:15:00,501 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:15:00,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:00,502 INFO L85 PathProgramCache]: Analyzing trace with hash 369962474, now seen corresponding path program 1 times [2024-11-13 14:15:00,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:00,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537737722] [2024-11-13 14:15:00,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:00,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:15:00,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1031253793] [2024-11-13 14:15:00,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:00,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:00,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:15:00,544 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:15:00,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-13 14:15:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:00,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-13 14:15:00,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:15:01,447 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-13 14:15:01,448 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:15:06,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:06,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537737722] [2024-11-13 14:15:06,389 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:15:06,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031253793] [2024-11-13 14:15:06,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031253793] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:15:06,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:15:06,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-13 14:15:06,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51445287] [2024-11-13 14:15:06,390 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:15:06,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 14:15:06,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:06,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 14:15:06,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=278, Unknown=1, NotChecked=0, Total=342 [2024-11-13 14:15:06,391 INFO L87 Difference]: Start difference. First operand 1029 states and 1464 transitions. Second operand has 13 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 14:15:08,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:08,235 INFO L93 Difference]: Finished difference Result 1340 states and 1879 transitions. [2024-11-13 14:15:08,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 14:15:08,236 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 90 [2024-11-13 14:15:08,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:08,242 INFO L225 Difference]: With dead ends: 1340 [2024-11-13 14:15:08,242 INFO L226 Difference]: Without dead ends: 1338 [2024-11-13 14:15:08,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=146, Invalid=609, Unknown=1, NotChecked=0, Total=756 [2024-11-13 14:15:08,243 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 463 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 1505 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 1542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:08,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 846 Invalid, 1542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1505 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 14:15:08,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2024-11-13 14:15:08,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1213. [2024-11-13 14:15:08,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1213 states, 1028 states have (on average 1.416342412451362) internal successors, (1456), 1072 states have internal predecessors, (1456), 138 states have call successors, (138), 2 states have call predecessors, (138), 2 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-13 14:15:08,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1732 transitions. [2024-11-13 14:15:08,451 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1732 transitions. Word has length 90 [2024-11-13 14:15:08,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:08,451 INFO L471 AbstractCegarLoop]: Abstraction has 1213 states and 1732 transitions. [2024-11-13 14:15:08,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 14:15:08,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1732 transitions. [2024-11-13 14:15:08,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-13 14:15:08,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:08,452 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:08,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-13 14:15:08,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2024-11-13 14:15:08,653 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:15:08,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:08,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1294260988, now seen corresponding path program 1 times [2024-11-13 14:15:08,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:08,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222878432] [2024-11-13 14:15:08,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:08,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:15:08,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [227255662] [2024-11-13 14:15:08,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:08,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:08,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:15:08,678 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:15:08,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-13 14:15:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:08,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 14:15:08,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:15:09,100 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:15:09,101 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:15:09,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:09,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222878432] [2024-11-13 14:15:09,223 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:15:09,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227255662] [2024-11-13 14:15:09,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227255662] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:15:09,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:15:09,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-13 14:15:09,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064321436] [2024-11-13 14:15:09,224 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:15:09,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:15:09,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:09,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:15:09,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:15:09,227 INFO L87 Difference]: Start difference. First operand 1213 states and 1732 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:15:10,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:10,153 INFO L93 Difference]: Finished difference Result 1278 states and 1783 transitions. [2024-11-13 14:15:10,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:15:10,154 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 91 [2024-11-13 14:15:10,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:10,159 INFO L225 Difference]: With dead ends: 1278 [2024-11-13 14:15:10,159 INFO L226 Difference]: Without dead ends: 1275 [2024-11-13 14:15:10,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:15:10,161 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 136 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:10,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 533 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:15:10,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1275 states. [2024-11-13 14:15:10,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1275 to 1215. [2024-11-13 14:15:10,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 1030 states have (on average 1.4058252427184466) internal successors, (1448), 1074 states have internal predecessors, (1448), 138 states have call successors, (138), 2 states have call predecessors, (138), 2 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-13 14:15:10,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1724 transitions. [2024-11-13 14:15:10,401 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1724 transitions. Word has length 91 [2024-11-13 14:15:10,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:10,402 INFO L471 AbstractCegarLoop]: Abstraction has 1215 states and 1724 transitions. [2024-11-13 14:15:10,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:15:10,402 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1724 transitions. [2024-11-13 14:15:10,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-13 14:15:10,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:10,404 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:10,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-11-13 14:15:10,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2024-11-13 14:15:10,609 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:15:10,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:10,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1416065023, now seen corresponding path program 1 times [2024-11-13 14:15:10,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:10,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031398246] [2024-11-13 14:15:10,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:10,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:15:10,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1966057291] [2024-11-13 14:15:10,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:10,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:10,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:15:10,630 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:15:10,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-13 14:15:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:10,717 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-13 14:15:10,720 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:15:11,492 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-13 14:15:11,492 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:15:17,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:17,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031398246] [2024-11-13 14:15:17,220 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:15:17,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966057291] [2024-11-13 14:15:17,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966057291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:15:17,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:15:17,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-13 14:15:17,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607108049] [2024-11-13 14:15:17,220 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:15:17,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 14:15:17,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:17,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 14:15:17,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=277, Unknown=1, NotChecked=0, Total=342 [2024-11-13 14:15:17,222 INFO L87 Difference]: Start difference. First operand 1215 states and 1724 transitions. Second operand has 13 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 14:15:19,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:19,551 INFO L93 Difference]: Finished difference Result 1340 states and 1864 transitions. [2024-11-13 14:15:19,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 14:15:19,551 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 91 [2024-11-13 14:15:19,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:19,555 INFO L225 Difference]: With dead ends: 1340 [2024-11-13 14:15:19,555 INFO L226 Difference]: Without dead ends: 1338 [2024-11-13 14:15:19,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=164, Invalid=647, Unknown=1, NotChecked=0, Total=812 [2024-11-13 14:15:19,556 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 458 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 1709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:19,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 890 Invalid, 1709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1671 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-13 14:15:19,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2024-11-13 14:15:19,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1216. [2024-11-13 14:15:19,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1216 states, 1031 states have (on average 1.399612027158099) internal successors, (1443), 1075 states have internal predecessors, (1443), 138 states have call successors, (138), 2 states have call predecessors, (138), 2 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-13 14:15:19,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1719 transitions. [2024-11-13 14:15:19,714 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1719 transitions. Word has length 91 [2024-11-13 14:15:19,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:19,714 INFO L471 AbstractCegarLoop]: Abstraction has 1216 states and 1719 transitions. [2024-11-13 14:15:19,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 14:15:19,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1719 transitions. [2024-11-13 14:15:19,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-13 14:15:19,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:19,716 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:19,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-11-13 14:15:19,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2024-11-13 14:15:19,921 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:15:19,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:19,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1467385112, now seen corresponding path program 1 times [2024-11-13 14:15:19,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:19,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191745923] [2024-11-13 14:15:19,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:19,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:19,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:15:19,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1105285216] [2024-11-13 14:15:19,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:19,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:19,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:15:19,948 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:15:19,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-13 14:15:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:20,036 INFO L255 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 14:15:20,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:15:20,382 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:15:20,382 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:15:21,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:21,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191745923] [2024-11-13 14:15:21,199 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:15:21,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105285216] [2024-11-13 14:15:21,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105285216] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:15:21,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:15:21,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-13 14:15:21,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371784062] [2024-11-13 14:15:21,200 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:15:21,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:15:21,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:21,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:15:21,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:15:21,201 INFO L87 Difference]: Start difference. First operand 1216 states and 1719 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:15:22,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:22,184 INFO L93 Difference]: Finished difference Result 1563 states and 2173 transitions. [2024-11-13 14:15:22,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:15:22,185 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 92 [2024-11-13 14:15:22,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:22,192 INFO L225 Difference]: With dead ends: 1563 [2024-11-13 14:15:22,192 INFO L226 Difference]: Without dead ends: 1562 [2024-11-13 14:15:22,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:15:22,194 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 242 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:22,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 563 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 14:15:22,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states. [2024-11-13 14:15:22,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 1228. [2024-11-13 14:15:22,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 1043 states have (on average 1.3978906999041227) internal successors, (1458), 1087 states have internal predecessors, (1458), 138 states have call successors, (138), 2 states have call predecessors, (138), 2 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-13 14:15:22,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1734 transitions. [2024-11-13 14:15:22,457 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1734 transitions. Word has length 92 [2024-11-13 14:15:22,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:22,458 INFO L471 AbstractCegarLoop]: Abstraction has 1228 states and 1734 transitions. [2024-11-13 14:15:22,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:15:22,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1734 transitions. [2024-11-13 14:15:22,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-13 14:15:22,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:22,459 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:22,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-11-13 14:15:22,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-11-13 14:15:22,664 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:15:22,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:22,664 INFO L85 PathProgramCache]: Analyzing trace with hash -948342580, now seen corresponding path program 1 times [2024-11-13 14:15:22,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:22,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330901877] [2024-11-13 14:15:22,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:22,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:15:22,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [48853947] [2024-11-13 14:15:22,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:22,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:22,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:15:22,697 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:15:22,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-13 14:15:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:22,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-13 14:15:22,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:15:23,575 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-13 14:15:23,576 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:15:29,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:29,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330901877] [2024-11-13 14:15:29,029 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:15:29,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48853947] [2024-11-13 14:15:29,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48853947] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:15:29,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:15:29,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-13 14:15:29,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354441338] [2024-11-13 14:15:29,030 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:15:29,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:15:29,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:29,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:15:29,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=225, Unknown=1, NotChecked=0, Total=272 [2024-11-13 14:15:29,031 INFO L87 Difference]: Start difference. First operand 1228 states and 1734 transitions. Second operand has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 14:15:30,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:30,620 INFO L93 Difference]: Finished difference Result 1353 states and 1873 transitions. [2024-11-13 14:15:30,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 14:15:30,621 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 92 [2024-11-13 14:15:30,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:30,630 INFO L225 Difference]: With dead ends: 1353 [2024-11-13 14:15:30,630 INFO L226 Difference]: Without dead ends: 1351 [2024-11-13 14:15:30,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=106, Invalid=493, Unknown=1, NotChecked=0, Total=600 [2024-11-13 14:15:30,632 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 587 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:30,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 539 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 14:15:30,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2024-11-13 14:15:30,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1230. [2024-11-13 14:15:30,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 1045 states have (on average 1.3971291866028708) internal successors, (1460), 1089 states have internal predecessors, (1460), 138 states have call successors, (138), 2 states have call predecessors, (138), 2 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-13 14:15:30,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1736 transitions. [2024-11-13 14:15:30,792 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1736 transitions. Word has length 92 [2024-11-13 14:15:30,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:30,793 INFO L471 AbstractCegarLoop]: Abstraction has 1230 states and 1736 transitions. [2024-11-13 14:15:30,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 14:15:30,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1736 transitions. [2024-11-13 14:15:30,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-13 14:15:30,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:30,795 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:30,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-11-13 14:15:30,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:31,000 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:15:31,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:31,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1755701634, now seen corresponding path program 1 times [2024-11-13 14:15:31,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:31,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677443194] [2024-11-13 14:15:31,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:31,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:31,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:15:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:31,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:15:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:31,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:15:31,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:31,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:15:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:31,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 14:15:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:31,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:15:31,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:31,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 14:15:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:31,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 14:15:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:31,357 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-13 14:15:31,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:31,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677443194] [2024-11-13 14:15:31,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677443194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:15:31,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772312551] [2024-11-13 14:15:31,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:31,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:31,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:15:31,361 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:15:31,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-13 14:15:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:31,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:15:31,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:15:31,619 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-13 14:15:31,620 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:15:32,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772312551] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:15:32,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:15:32,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-13 14:15:32,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359821510] [2024-11-13 14:15:32,237 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:15:32,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:15:32,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:32,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:15:32,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:15:32,238 INFO L87 Difference]: Start difference. First operand 1230 states and 1736 transitions. Second operand has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 14:15:34,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:34,156 INFO L93 Difference]: Finished difference Result 1514 states and 2110 transitions. [2024-11-13 14:15:34,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:15:34,156 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 93 [2024-11-13 14:15:34,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:34,160 INFO L225 Difference]: With dead ends: 1514 [2024-11-13 14:15:34,160 INFO L226 Difference]: Without dead ends: 1513 [2024-11-13 14:15:34,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:15:34,161 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 234 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:34,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 738 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 14:15:34,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-13 14:15:34,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1420. [2024-11-13 14:15:34,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1213 states have (on average 1.4328112118713932) internal successors, (1738), 1257 states have internal predecessors, (1738), 160 states have call successors, (160), 2 states have call predecessors, (160), 2 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2024-11-13 14:15:34,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 2058 transitions. [2024-11-13 14:15:34,460 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 2058 transitions. Word has length 93 [2024-11-13 14:15:34,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:34,461 INFO L471 AbstractCegarLoop]: Abstraction has 1420 states and 2058 transitions. [2024-11-13 14:15:34,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 14:15:34,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 2058 transitions. [2024-11-13 14:15:34,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-13 14:15:34,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:34,462 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:34,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-11-13 14:15:34,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-11-13 14:15:34,665 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:15:34,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:34,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1407824346, now seen corresponding path program 1 times [2024-11-13 14:15:34,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:34,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370165040] [2024-11-13 14:15:34,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:34,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:15:34,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [123720669] [2024-11-13 14:15:34,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:34,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:34,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:15:34,688 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:15:34,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-13 14:15:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:34,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-13 14:15:34,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:15:35,233 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:15:35,233 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:15:45,458 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:15:45,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:45,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370165040] [2024-11-13 14:15:45,459 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:15:45,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123720669] [2024-11-13 14:15:45,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123720669] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:15:45,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:15:45,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-13 14:15:45,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840195708] [2024-11-13 14:15:45,459 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:15:45,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 14:15:45,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:45,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 14:15:45,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=181, Unknown=2, NotChecked=0, Total=240 [2024-11-13 14:15:45,460 INFO L87 Difference]: Start difference. First operand 1420 states and 2058 transitions. Second operand has 16 states, 15 states have (on average 7.4) internal successors, (111), 16 states have internal predecessors, (111), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 14:15:47,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:47,976 INFO L93 Difference]: Finished difference Result 2089 states and 2959 transitions. [2024-11-13 14:15:47,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 14:15:47,977 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.4) internal successors, (111), 16 states have internal predecessors, (111), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 94 [2024-11-13 14:15:47,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:47,982 INFO L225 Difference]: With dead ends: 2089 [2024-11-13 14:15:47,983 INFO L226 Difference]: Without dead ends: 2088 [2024-11-13 14:15:47,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=110, Invalid=350, Unknown=2, NotChecked=0, Total=462 [2024-11-13 14:15:47,984 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 797 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 1196 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:47,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 1178 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1196 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 14:15:47,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2024-11-13 14:15:48,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 1539. [2024-11-13 14:15:48,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 1318 states have (on average 1.4317147192716237) internal successors, (1887), 1362 states have internal predecessors, (1887), 174 states have call successors, (174), 2 states have call predecessors, (174), 2 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-13 14:15:48,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 2235 transitions. [2024-11-13 14:15:48,327 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 2235 transitions. Word has length 94 [2024-11-13 14:15:48,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:48,327 INFO L471 AbstractCegarLoop]: Abstraction has 1539 states and 2235 transitions. [2024-11-13 14:15:48,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.4) internal successors, (111), 16 states have internal predecessors, (111), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 14:15:48,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 2235 transitions. [2024-11-13 14:15:48,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-13 14:15:48,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:48,329 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:48,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-11-13 14:15:48,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-11-13 14:15:48,530 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:15:48,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:48,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1731303792, now seen corresponding path program 1 times [2024-11-13 14:15:48,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:48,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600366298] [2024-11-13 14:15:48,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:48,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:48,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:15:48,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1142250721] [2024-11-13 14:15:48,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:48,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:48,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:15:48,562 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:15:48,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-13 14:15:48,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:48,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-13 14:15:48,652 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:15:49,477 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:15:49,478 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:15:50,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:50,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600366298] [2024-11-13 14:15:50,636 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:15:50,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142250721] [2024-11-13 14:15:50,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142250721] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:15:50,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:15:50,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-13 14:15:50,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528980143] [2024-11-13 14:15:50,636 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:15:50,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:15:50,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:50,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:15:50,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:15:50,638 INFO L87 Difference]: Start difference. First operand 1539 states and 2235 transitions. Second operand has 9 states, 8 states have (on average 7.75) internal successors, (62), 9 states have internal predecessors, (62), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:15:52,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:52,637 INFO L93 Difference]: Finished difference Result 1659 states and 2371 transitions. [2024-11-13 14:15:52,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:15:52,638 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.75) internal successors, (62), 9 states have internal predecessors, (62), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 96 [2024-11-13 14:15:52,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:52,644 INFO L225 Difference]: With dead ends: 1659 [2024-11-13 14:15:52,644 INFO L226 Difference]: Without dead ends: 1657 [2024-11-13 14:15:52,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:15:52,646 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 289 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:52,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 601 Invalid, 1250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1225 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 14:15:52,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2024-11-13 14:15:52,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1543. [2024-11-13 14:15:52,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1322 states have (on average 1.4304084720121029) internal successors, (1891), 1366 states have internal predecessors, (1891), 174 states have call successors, (174), 2 states have call predecessors, (174), 2 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-13 14:15:52,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2239 transitions. [2024-11-13 14:15:52,852 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2239 transitions. Word has length 96 [2024-11-13 14:15:52,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:52,853 INFO L471 AbstractCegarLoop]: Abstraction has 1543 states and 2239 transitions. [2024-11-13 14:15:52,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.75) internal successors, (62), 9 states have internal predecessors, (62), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:15:52,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2239 transitions. [2024-11-13 14:15:52,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-13 14:15:52,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:52,854 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:52,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-11-13 14:15:53,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-11-13 14:15:53,058 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:15:53,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:53,059 INFO L85 PathProgramCache]: Analyzing trace with hash 139599234, now seen corresponding path program 1 times [2024-11-13 14:15:53,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:53,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287444584] [2024-11-13 14:15:53,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:53,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:53,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:15:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:53,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:15:53,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:53,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:15:53,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:53,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:15:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:53,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 14:15:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:53,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:15:53,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:53,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 14:15:53,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:53,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 14:15:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:53,277 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-13 14:15:53,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:53,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287444584] [2024-11-13 14:15:53,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287444584] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:15:53,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208856464] [2024-11-13 14:15:53,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:53,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:53,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:15:53,281 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:15:53,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-13 14:15:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:53,365 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:15:53,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:15:53,572 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-13 14:15:53,572 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:15:54,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208856464] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:15:54,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:15:54,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-13 14:15:54,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072219358] [2024-11-13 14:15:54,406 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:15:54,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:15:54,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:54,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:15:54,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:15:54,408 INFO L87 Difference]: Start difference. First operand 1543 states and 2239 transitions. Second operand has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 10 states have internal predecessors, (115), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 14:15:55,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:55,637 INFO L93 Difference]: Finished difference Result 1595 states and 2260 transitions. [2024-11-13 14:15:55,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:15:55,638 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 10 states have internal predecessors, (115), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 97 [2024-11-13 14:15:55,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:55,644 INFO L225 Difference]: With dead ends: 1595 [2024-11-13 14:15:55,644 INFO L226 Difference]: Without dead ends: 1594 [2024-11-13 14:15:55,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:15:55,646 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 143 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:55,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 944 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 14:15:55,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1594 states. [2024-11-13 14:15:55,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1594 to 1543. [2024-11-13 14:15:55,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1322 states have (on average 1.4288956127080181) internal successors, (1889), 1366 states have internal predecessors, (1889), 174 states have call successors, (174), 2 states have call predecessors, (174), 2 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-13 14:15:55,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2237 transitions. [2024-11-13 14:15:55,986 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2237 transitions. Word has length 97 [2024-11-13 14:15:55,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:55,986 INFO L471 AbstractCegarLoop]: Abstraction has 1543 states and 2237 transitions. [2024-11-13 14:15:55,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 10 states have internal predecessors, (115), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 14:15:55,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2237 transitions. [2024-11-13 14:15:55,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-13 14:15:55,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:55,988 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:56,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-11-13 14:15:56,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-11-13 14:15:56,188 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:15:56,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:56,189 INFO L85 PathProgramCache]: Analyzing trace with hash 32609118, now seen corresponding path program 1 times [2024-11-13 14:15:56,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:56,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831999535] [2024-11-13 14:15:56,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:56,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:15:56,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [541162669] [2024-11-13 14:15:56,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:56,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:56,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:15:56,216 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:15:56,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-13 14:15:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:56,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 14:15:56,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:15:56,889 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:15:56,889 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:15:57,387 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:15:57,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:57,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831999535] [2024-11-13 14:15:57,387 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:15:57,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541162669] [2024-11-13 14:15:57,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541162669] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:15:57,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:15:57,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2024-11-13 14:15:57,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577411487] [2024-11-13 14:15:57,388 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:15:57,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 14:15:57,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:57,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 14:15:57,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:15:57,389 INFO L87 Difference]: Start difference. First operand 1543 states and 2237 transitions. Second operand has 18 states, 17 states have (on average 7.0) internal successors, (119), 18 states have internal predecessors, (119), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 14:16:02,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:16:02,137 INFO L93 Difference]: Finished difference Result 1974 states and 2729 transitions. [2024-11-13 14:16:02,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 14:16:02,137 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.0) internal successors, (119), 18 states have internal predecessors, (119), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 98 [2024-11-13 14:16:02,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:16:02,144 INFO L225 Difference]: With dead ends: 1974 [2024-11-13 14:16:02,144 INFO L226 Difference]: Without dead ends: 1973 [2024-11-13 14:16:02,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=209, Invalid=603, Unknown=0, NotChecked=0, Total=812 [2024-11-13 14:16:02,145 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 1353 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 1587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:16:02,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1377 Valid, 1515 Invalid, 1587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-13 14:16:02,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1973 states. [2024-11-13 14:16:02,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1973 to 1554. [2024-11-13 14:16:02,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1333 states have (on average 1.4298574643660915) internal successors, (1906), 1377 states have internal predecessors, (1906), 174 states have call successors, (174), 2 states have call predecessors, (174), 2 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-13 14:16:02,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 2254 transitions. [2024-11-13 14:16:02,508 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 2254 transitions. Word has length 98 [2024-11-13 14:16:02,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:16:02,508 INFO L471 AbstractCegarLoop]: Abstraction has 1554 states and 2254 transitions. [2024-11-13 14:16:02,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.0) internal successors, (119), 18 states have internal predecessors, (119), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 14:16:02,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 2254 transitions. [2024-11-13 14:16:02,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-13 14:16:02,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:16:02,510 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:16:02,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2024-11-13 14:16:02,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-11-13 14:16:02,713 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:16:02,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:16:02,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1630594702, now seen corresponding path program 1 times [2024-11-13 14:16:02,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:16:02,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222320002] [2024-11-13 14:16:02,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:16:02,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:16:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:16:02,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1062948017] [2024-11-13 14:16:02,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:16:02,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:16:02,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:16:02,737 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:16:02,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-11-13 14:16:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:16:02,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 14:16:02,826 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:16:03,846 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-13 14:16:03,846 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:16:12,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:16:12,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222320002] [2024-11-13 14:16:12,564 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:16:12,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062948017] [2024-11-13 14:16:12,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062948017] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:16:12,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:16:12,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-13 14:16:12,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541467690] [2024-11-13 14:16:12,565 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:16:12,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:16:12,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:16:12,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:16:12,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=210, Unknown=2, NotChecked=0, Total=272 [2024-11-13 14:16:12,566 INFO L87 Difference]: Start difference. First operand 1554 states and 2254 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 14:16:14,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:16:14,434 INFO L93 Difference]: Finished difference Result 1799 states and 2543 transitions. [2024-11-13 14:16:14,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 14:16:14,434 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 98 [2024-11-13 14:16:14,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:16:14,440 INFO L225 Difference]: With dead ends: 1799 [2024-11-13 14:16:14,441 INFO L226 Difference]: Without dead ends: 1797 [2024-11-13 14:16:14,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=125, Invalid=379, Unknown=2, NotChecked=0, Total=506 [2024-11-13 14:16:14,442 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 396 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:16:14,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 685 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 14:16:14,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2024-11-13 14:16:14,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 1555. [2024-11-13 14:16:14,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1334 states have (on average 1.4287856071964018) internal successors, (1906), 1378 states have internal predecessors, (1906), 174 states have call successors, (174), 2 states have call predecessors, (174), 2 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-13 14:16:14,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2254 transitions. [2024-11-13 14:16:14,774 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2254 transitions. Word has length 98 [2024-11-13 14:16:14,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:16:14,774 INFO L471 AbstractCegarLoop]: Abstraction has 1555 states and 2254 transitions. [2024-11-13 14:16:14,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 14:16:14,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2254 transitions. [2024-11-13 14:16:14,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-13 14:16:14,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:16:14,776 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:16:14,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2024-11-13 14:16:14,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:16:14,981 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:16:14,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:16:14,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1811427224, now seen corresponding path program 1 times [2024-11-13 14:16:14,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:16:14,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36811263] [2024-11-13 14:16:14,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:16:14,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:16:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:16:15,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:16:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:16:15,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:16:15,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:16:15,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:16:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:16:15,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:16:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:16:15,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:16:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:16:15,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-13 14:16:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:16:15,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 14:16:15,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:16:15,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:16:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:16:15,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 14:16:15,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:16:15,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-13 14:16:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:16:15,116 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-13 14:16:15,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:16:15,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36811263] [2024-11-13 14:16:15,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36811263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:16:15,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:16:15,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:16:15,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505958467] [2024-11-13 14:16:15,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:16:15,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:16:15,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:16:15,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:16:15,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:16:15,118 INFO L87 Difference]: Start difference. First operand 1555 states and 2254 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-13 14:16:15,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:16:15,729 INFO L93 Difference]: Finished difference Result 2842 states and 4166 transitions. [2024-11-13 14:16:15,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:16:15,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 100 [2024-11-13 14:16:15,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:16:15,737 INFO L225 Difference]: With dead ends: 2842 [2024-11-13 14:16:15,737 INFO L226 Difference]: Without dead ends: 1617 [2024-11-13 14:16:15,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:16:15,741 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 19 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:16:15,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 407 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:16:15,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2024-11-13 14:16:16,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1581. [2024-11-13 14:16:16,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1360 states have (on average 1.423529411764706) internal successors, (1936), 1404 states have internal predecessors, (1936), 174 states have call successors, (174), 2 states have call predecessors, (174), 2 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-13 14:16:16,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2284 transitions. [2024-11-13 14:16:16,047 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2284 transitions. Word has length 100 [2024-11-13 14:16:16,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:16:16,047 INFO L471 AbstractCegarLoop]: Abstraction has 1581 states and 2284 transitions. [2024-11-13 14:16:16,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-13 14:16:16,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2284 transitions. [2024-11-13 14:16:16,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-13 14:16:16,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:16:16,048 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:16:16,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-11-13 14:16:16,049 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:16:16,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:16:16,049 INFO L85 PathProgramCache]: Analyzing trace with hash 991171977, now seen corresponding path program 1 times [2024-11-13 14:16:16,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:16:16,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594153985] [2024-11-13 14:16:16,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:16:16,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:16:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:16:16,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1793262962] [2024-11-13 14:16:16,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:16:16,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:16:16,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:16:16,071 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:16:16,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-13 14:16:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:16:16,145 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 14:16:16,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:16:17,298 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-13 14:16:17,298 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:16:22,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:16:22,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594153985] [2024-11-13 14:16:22,837 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:16:22,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793262962] [2024-11-13 14:16:22,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793262962] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:16:22,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:16:22,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-13 14:16:22,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913486603] [2024-11-13 14:16:22,838 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:16:22,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:16:22,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:16:22,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:16:22,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=215, Unknown=1, NotChecked=0, Total=272 [2024-11-13 14:16:22,839 INFO L87 Difference]: Start difference. First operand 1581 states and 2284 transitions. Second operand has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 14:16:24,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:16:24,590 INFO L93 Difference]: Finished difference Result 1647 states and 2338 transitions. [2024-11-13 14:16:24,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 14:16:24,590 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 99 [2024-11-13 14:16:24,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:16:24,596 INFO L225 Difference]: With dead ends: 1647 [2024-11-13 14:16:24,596 INFO L226 Difference]: Without dead ends: 1645 [2024-11-13 14:16:24,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=97, Invalid=322, Unknown=1, NotChecked=0, Total=420 [2024-11-13 14:16:24,597 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 335 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:16:24,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 775 Invalid, 1080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 14:16:24,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1645 states. [2024-11-13 14:16:24,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1645 to 1582. [2024-11-13 14:16:24,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1361 states have (on average 1.4224834680382072) internal successors, (1936), 1405 states have internal predecessors, (1936), 174 states have call successors, (174), 2 states have call predecessors, (174), 2 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-13 14:16:24,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 2284 transitions. [2024-11-13 14:16:24,927 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 2284 transitions. Word has length 99 [2024-11-13 14:16:24,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:16:24,928 INFO L471 AbstractCegarLoop]: Abstraction has 1582 states and 2284 transitions. [2024-11-13 14:16:24,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 14:16:24,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 2284 transitions. [2024-11-13 14:16:24,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-13 14:16:24,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:16:24,929 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:16:24,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2024-11-13 14:16:25,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:16:25,130 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:16:25,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:16:25,131 INFO L85 PathProgramCache]: Analyzing trace with hash 661560404, now seen corresponding path program 1 times [2024-11-13 14:16:25,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:16:25,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790833128] [2024-11-13 14:16:25,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:16:25,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:16:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:16:25,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [865742577] [2024-11-13 14:16:25,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:16:25,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:16:25,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:16:25,154 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:16:25,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-11-13 14:16:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:16:25,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-13 14:16:25,239 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:16:27,016 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:16:27,016 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:16:36,133 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:16:36,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:16:36,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790833128] [2024-11-13 14:16:36,133 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:16:36,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865742577] [2024-11-13 14:16:36,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865742577] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:16:36,133 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:16:36,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-11-13 14:16:36,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805729307] [2024-11-13 14:16:36,134 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:16:36,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 14:16:36,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:16:36,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 14:16:36,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-11-13 14:16:36,136 INFO L87 Difference]: Start difference. First operand 1582 states and 2284 transitions. Second operand has 22 states, 21 states have (on average 5.857142857142857) internal successors, (123), 22 states have internal predecessors, (123), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 14:17:08,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:17:08,274 INFO L93 Difference]: Finished difference Result 1674 states and 2365 transitions. [2024-11-13 14:17:08,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-13 14:17:08,275 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.857142857142857) internal successors, (123), 22 states have internal predecessors, (123), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 100 [2024-11-13 14:17:08,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:17:08,281 INFO L225 Difference]: With dead ends: 1674 [2024-11-13 14:17:08,281 INFO L226 Difference]: Without dead ends: 1672 [2024-11-13 14:17:08,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=489, Invalid=1863, Unknown=0, NotChecked=0, Total=2352 [2024-11-13 14:17:08,283 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 971 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 2038 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 2178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 2038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:17:08,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [975 Valid, 557 Invalid, 2178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 2038 Invalid, 0 Unknown, 0 Unchecked, 23.8s Time] [2024-11-13 14:17:08,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2024-11-13 14:17:08,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1583. [2024-11-13 14:17:08,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1362 states have (on average 1.4170337738619676) internal successors, (1930), 1406 states have internal predecessors, (1930), 174 states have call successors, (174), 2 states have call predecessors, (174), 2 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-13 14:17:08,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 2278 transitions. [2024-11-13 14:17:08,680 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 2278 transitions. Word has length 100 [2024-11-13 14:17:08,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:17:08,681 INFO L471 AbstractCegarLoop]: Abstraction has 1583 states and 2278 transitions. [2024-11-13 14:17:08,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.857142857142857) internal successors, (123), 22 states have internal predecessors, (123), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 14:17:08,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 2278 transitions. [2024-11-13 14:17:08,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-13 14:17:08,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:17:08,683 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:17:08,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2024-11-13 14:17:08,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:17:08,887 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:17:08,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:17:08,887 INFO L85 PathProgramCache]: Analyzing trace with hash 795671332, now seen corresponding path program 1 times [2024-11-13 14:17:08,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:17:08,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937745995] [2024-11-13 14:17:08,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:17:08,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:17:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:17:09,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:17:09,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:17:09,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:17:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:17:09,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:17:09,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:17:09,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:17:09,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:17:09,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 14:17:09,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:17:09,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:17:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:17:09,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 14:17:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:17:09,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 14:17:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:17:09,070 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:17:09,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:17:09,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937745995] [2024-11-13 14:17:09,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937745995] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:17:09,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800076444] [2024-11-13 14:17:09,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:17:09,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:17:09,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:17:09,074 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:17:09,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-11-13 14:17:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:17:09,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 14:17:09,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:17:09,304 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:17:09,305 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:17:09,514 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:17:09,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800076444] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:17:09,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:17:09,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 8 [2024-11-13 14:17:09,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933864131] [2024-11-13 14:17:09,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:17:09,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:17:09,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:17:09,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:17:09,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:17:09,516 INFO L87 Difference]: Start difference. First operand 1583 states and 2278 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:17:10,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:17:10,774 INFO L93 Difference]: Finished difference Result 2304 states and 3314 transitions. [2024-11-13 14:17:10,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-13 14:17:10,775 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 101 [2024-11-13 14:17:10,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:17:10,781 INFO L225 Difference]: With dead ends: 2304 [2024-11-13 14:17:10,782 INFO L226 Difference]: Without dead ends: 2269 [2024-11-13 14:17:10,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 216 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:17:10,783 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 597 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:17:10,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 1093 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:17:10,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2269 states. [2024-11-13 14:17:11,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2269 to 1618. [2024-11-13 14:17:11,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1618 states, 1397 states have (on average 1.4158911954187545) internal successors, (1978), 1441 states have internal predecessors, (1978), 174 states have call successors, (174), 2 states have call predecessors, (174), 2 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-13 14:17:11,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1618 states to 1618 states and 2326 transitions. [2024-11-13 14:17:11,299 INFO L78 Accepts]: Start accepts. Automaton has 1618 states and 2326 transitions. Word has length 101 [2024-11-13 14:17:11,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:17:11,299 INFO L471 AbstractCegarLoop]: Abstraction has 1618 states and 2326 transitions. [2024-11-13 14:17:11,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:17:11,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1618 states and 2326 transitions. [2024-11-13 14:17:11,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-13 14:17:11,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:17:11,301 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:17:11,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2024-11-13 14:17:11,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:17:11,501 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:17:11,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:17:11,502 INFO L85 PathProgramCache]: Analyzing trace with hash -966463765, now seen corresponding path program 1 times [2024-11-13 14:17:11,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:17:11,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727205061] [2024-11-13 14:17:11,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:17:11,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:17:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:17:11,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1629854304] [2024-11-13 14:17:11,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:17:11,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:17:11,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:17:11,522 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:17:11,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-11-13 14:17:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:17:11,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-13 14:17:11,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:17:13,182 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:17:13,182 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:17:22,057 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:17:22,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:17:22,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727205061] [2024-11-13 14:17:22,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:17:22,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629854304] [2024-11-13 14:17:22,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629854304] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:17:22,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:17:22,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-11-13 14:17:22,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235118711] [2024-11-13 14:17:22,057 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:17:22,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 14:17:22,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:17:22,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 14:17:22,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2024-11-13 14:17:22,059 INFO L87 Difference]: Start difference. First operand 1618 states and 2326 transitions. Second operand has 22 states, 21 states have (on average 5.9523809523809526) internal successors, (125), 22 states have internal predecessors, (125), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 14:17:43,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:17:56,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:18:02,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:18:02,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:18:02,804 INFO L93 Difference]: Finished difference Result 1704 states and 2407 transitions. [2024-11-13 14:18:02,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-13 14:18:02,805 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.9523809523809526) internal successors, (125), 22 states have internal predecessors, (125), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 101 [2024-11-13 14:18:02,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:18:02,810 INFO L225 Difference]: With dead ends: 1704 [2024-11-13 14:18:02,810 INFO L226 Difference]: Without dead ends: 1689 [2024-11-13 14:18:02,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=346, Invalid=1376, Unknown=0, NotChecked=0, Total=1722 [2024-11-13 14:18:02,812 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 889 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 2130 mSolverCounterSat, 139 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 2271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 2130 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:18:02,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 651 Invalid, 2271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 2130 Invalid, 2 Unknown, 0 Unchecked, 36.4s Time] [2024-11-13 14:18:02,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2024-11-13 14:18:03,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1605. [2024-11-13 14:18:03,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1605 states, 1384 states have (on average 1.4190751445086704) internal successors, (1964), 1428 states have internal predecessors, (1964), 174 states have call successors, (174), 2 states have call predecessors, (174), 2 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-13 14:18:03,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 2312 transitions. [2024-11-13 14:18:03,324 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 2312 transitions. Word has length 101 [2024-11-13 14:18:03,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:18:03,324 INFO L471 AbstractCegarLoop]: Abstraction has 1605 states and 2312 transitions. [2024-11-13 14:18:03,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.9523809523809526) internal successors, (125), 22 states have internal predecessors, (125), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 14:18:03,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 2312 transitions. [2024-11-13 14:18:03,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 14:18:03,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:18:03,326 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 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] [2024-11-13 14:18:03,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2024-11-13 14:18:03,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:18:03,527 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:18:03,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:18:03,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1178396772, now seen corresponding path program 1 times [2024-11-13 14:18:03,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:18:03,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943445042] [2024-11-13 14:18:03,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:18:03,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:18:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:18:03,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2054582974] [2024-11-13 14:18:03,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:18:03,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:18:03,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:18:03,544 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:18:03,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-11-13 14:18:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:18:03,625 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 14:18:03,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:18:03,943 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-13 14:18:03,943 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:18:03,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:18:03,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943445042] [2024-11-13 14:18:03,943 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:18:03,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054582974] [2024-11-13 14:18:03,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054582974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:18:03,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:18:03,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:18:03,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127738160] [2024-11-13 14:18:03,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:18:03,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:18:03,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:18:03,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:18:03,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:18:03,945 INFO L87 Difference]: Start difference. First operand 1605 states and 2312 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-13 14:18:04,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:18:04,761 INFO L93 Difference]: Finished difference Result 1611 states and 2312 transitions. [2024-11-13 14:18:04,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:18:04,761 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 107 [2024-11-13 14:18:04,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:18:04,764 INFO L225 Difference]: With dead ends: 1611 [2024-11-13 14:18:04,764 INFO L226 Difference]: Without dead ends: 1610 [2024-11-13 14:18:04,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:18:04,765 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 162 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:18:04,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 444 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:18:04,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1610 states. [2024-11-13 14:18:05,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1610 to 1605. [2024-11-13 14:18:05,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1605 states, 1384 states have (on average 1.416184971098266) internal successors, (1960), 1428 states have internal predecessors, (1960), 174 states have call successors, (174), 2 states have call predecessors, (174), 2 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-13 14:18:05,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 2308 transitions. [2024-11-13 14:18:05,146 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 2308 transitions. Word has length 107 [2024-11-13 14:18:05,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:18:05,146 INFO L471 AbstractCegarLoop]: Abstraction has 1605 states and 2308 transitions. [2024-11-13 14:18:05,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-13 14:18:05,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 2308 transitions. [2024-11-13 14:18:05,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-13 14:18:05,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:18:05,147 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2024-11-13 14:18:05,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2024-11-13 14:18:05,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2024-11-13 14:18:05,348 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:18:05,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:18:05,349 INFO L85 PathProgramCache]: Analyzing trace with hash -629614004, now seen corresponding path program 1 times [2024-11-13 14:18:05,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:18:05,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537637158] [2024-11-13 14:18:05,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:18:05,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:18:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:18:05,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [728059755] [2024-11-13 14:18:05,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:18:05,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:18:05,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:18:05,370 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:18:05,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-11-13 14:18:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:18:05,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 14:18:05,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:18:06,746 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-13 14:18:06,746 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:18:07,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:18:07,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537637158] [2024-11-13 14:18:07,066 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:18:07,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728059755] [2024-11-13 14:18:07,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728059755] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:18:07,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:18:07,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-13 14:18:07,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272670334] [2024-11-13 14:18:07,066 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:18:07,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:18:07,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:18:07,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:18:07,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:18:07,067 INFO L87 Difference]: Start difference. First operand 1605 states and 2308 transitions. Second operand has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 14:18:09,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:18:09,836 INFO L93 Difference]: Finished difference Result 1833 states and 2620 transitions. [2024-11-13 14:18:09,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 14:18:09,837 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 106 [2024-11-13 14:18:09,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:18:09,841 INFO L225 Difference]: With dead ends: 1833 [2024-11-13 14:18:09,842 INFO L226 Difference]: Without dead ends: 1832 [2024-11-13 14:18:09,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2024-11-13 14:18:09,844 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 470 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:18:09,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 1276 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 14:18:09,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states. [2024-11-13 14:18:10,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 1777. [2024-11-13 14:18:10,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1777 states, 1534 states have (on average 1.4341590612777053) internal successors, (2200), 1578 states have internal predecessors, (2200), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2024-11-13 14:18:10,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 2592 transitions. [2024-11-13 14:18:10,202 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 2592 transitions. Word has length 106 [2024-11-13 14:18:10,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:18:10,203 INFO L471 AbstractCegarLoop]: Abstraction has 1777 states and 2592 transitions. [2024-11-13 14:18:10,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 14:18:10,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 2592 transitions. [2024-11-13 14:18:10,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 14:18:10,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:18:10,204 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:18:10,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2024-11-13 14:18:10,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:18:10,405 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:18:10,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:18:10,405 INFO L85 PathProgramCache]: Analyzing trace with hash -140229232, now seen corresponding path program 1 times [2024-11-13 14:18:10,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:18:10,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952285955] [2024-11-13 14:18:10,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:18:10,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:18:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:18:10,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2053959128] [2024-11-13 14:18:10,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:18:10,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:18:10,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:18:10,424 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:18:10,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-11-13 14:18:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:18:10,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-13 14:18:10,508 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:18:12,588 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-13 14:18:12,588 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:18:18,238 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-13 14:18:18,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:18:18,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952285955] [2024-11-13 14:18:18,238 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:18:18,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053959128] [2024-11-13 14:18:18,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053959128] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:18:18,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:18:18,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-13 14:18:18,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772267467] [2024-11-13 14:18:18,239 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:18:18,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-13 14:18:18,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:18:18,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-13 14:18:18,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=596, Unknown=0, NotChecked=0, Total=702 [2024-11-13 14:18:18,240 INFO L87 Difference]: Start difference. First operand 1777 states and 2592 transitions. Second operand has 27 states, 26 states have (on average 5.115384615384615) internal successors, (133), 27 states have internal predecessors, (133), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-13 14:18:23,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:18:27,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:18:31,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:18:58,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:19:02,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:19:06,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:19:14,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:19:14,469 INFO L93 Difference]: Finished difference Result 1836 states and 2636 transitions. [2024-11-13 14:19:14,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-13 14:19:14,470 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 5.115384615384615) internal successors, (133), 27 states have internal predecessors, (133), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) Word has length 107 [2024-11-13 14:19:14,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:19:14,473 INFO L225 Difference]: With dead ends: 1836 [2024-11-13 14:19:14,473 INFO L226 Difference]: Without dead ends: 1835 [2024-11-13 14:19:14,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=382, Invalid=1780, Unknown=0, NotChecked=0, Total=2162 [2024-11-13 14:19:14,474 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 880 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 2771 mSolverCounterSat, 94 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 2871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2771 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:19:14,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 768 Invalid, 2871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 2771 Invalid, 6 Unknown, 0 Unchecked, 52.5s Time] [2024-11-13 14:19:14,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1835 states. [2024-11-13 14:19:14,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1835 to 1777. [2024-11-13 14:19:14,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1777 states, 1534 states have (on average 1.4126466753585398) internal successors, (2167), 1578 states have internal predecessors, (2167), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2024-11-13 14:19:14,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 2559 transitions. [2024-11-13 14:19:14,819 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 2559 transitions. Word has length 107 [2024-11-13 14:19:14,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:19:14,820 INFO L471 AbstractCegarLoop]: Abstraction has 1777 states and 2559 transitions. [2024-11-13 14:19:14,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 5.115384615384615) internal successors, (133), 27 states have internal predecessors, (133), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-13 14:19:14,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 2559 transitions. [2024-11-13 14:19:14,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 14:19:14,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:19:14,821 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:19:14,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2024-11-13 14:19:15,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:19:15,025 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:19:15,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:19:15,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1956802436, now seen corresponding path program 1 times [2024-11-13 14:19:15,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:19:15,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224114385] [2024-11-13 14:19:15,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:19:15,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:19:15,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:19:15,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [991799914] [2024-11-13 14:19:15,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:19:15,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:19:15,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:19:15,045 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:19:15,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-11-13 14:19:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:15,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 14:19:15,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:19:16,556 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-13 14:19:16,556 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:19:17,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:19:17,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224114385] [2024-11-13 14:19:17,488 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:19:17,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991799914] [2024-11-13 14:19:17,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991799914] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:19:17,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:19:17,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-13 14:19:17,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925000547] [2024-11-13 14:19:17,488 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:19:17,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:19:17,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:19:17,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:19:17,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:19:17,489 INFO L87 Difference]: Start difference. First operand 1777 states and 2559 transitions. Second operand has 14 states, 13 states have (on average 5.846153846153846) internal successors, (76), 14 states have internal predecessors, (76), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 14:19:20,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:19:20,271 INFO L93 Difference]: Finished difference Result 1833 states and 2581 transitions. [2024-11-13 14:19:20,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 14:19:20,272 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.846153846153846) internal successors, (76), 14 states have internal predecessors, (76), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 107 [2024-11-13 14:19:20,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:19:20,275 INFO L225 Difference]: With dead ends: 1833 [2024-11-13 14:19:20,275 INFO L226 Difference]: Without dead ends: 1832 [2024-11-13 14:19:20,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2024-11-13 14:19:20,276 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 431 mSDsluCounter, 1001 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:19:20,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 1152 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1176 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 14:19:20,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states. [2024-11-13 14:19:20,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 1777. [2024-11-13 14:19:20,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1777 states, 1534 states have (on average 1.408735332464146) internal successors, (2161), 1578 states have internal predecessors, (2161), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2024-11-13 14:19:20,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 2553 transitions. [2024-11-13 14:19:20,568 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 2553 transitions. Word has length 107 [2024-11-13 14:19:20,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:19:20,568 INFO L471 AbstractCegarLoop]: Abstraction has 1777 states and 2553 transitions. [2024-11-13 14:19:20,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.846153846153846) internal successors, (76), 14 states have internal predecessors, (76), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 14:19:20,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 2553 transitions. [2024-11-13 14:19:20,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-13 14:19:20,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:19:20,569 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:19:20,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2024-11-13 14:19:20,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2024-11-13 14:19:20,770 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:19:20,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:19:20,770 INFO L85 PathProgramCache]: Analyzing trace with hash 531333454, now seen corresponding path program 1 times [2024-11-13 14:19:20,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:19:20,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892687479] [2024-11-13 14:19:20,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:19:20,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:19:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:19:20,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1778450812] [2024-11-13 14:19:20,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:19:20,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:19:20,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:19:20,801 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:19:20,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-11-13 14:19:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:20,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-13 14:19:20,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:19:21,704 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 14:19:21,704 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:19:27,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:19:27,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892687479] [2024-11-13 14:19:27,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:19:27,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778450812] [2024-11-13 14:19:27,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778450812] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:19:27,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:19:27,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-13 14:19:27,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779664077] [2024-11-13 14:19:27,110 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:19:27,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:19:27,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:19:27,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:19:27,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=176, Unknown=1, NotChecked=0, Total=210 [2024-11-13 14:19:27,111 INFO L87 Difference]: Start difference. First operand 1777 states and 2553 transitions. Second operand has 11 states, 10 states have (on average 7.4) internal successors, (74), 11 states have internal predecessors, (74), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:19:31,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:19:31,278 INFO L93 Difference]: Finished difference Result 1849 states and 2586 transitions. [2024-11-13 14:19:31,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 14:19:31,279 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.4) internal successors, (74), 11 states have internal predecessors, (74), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 108 [2024-11-13 14:19:31,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:19:31,282 INFO L225 Difference]: With dead ends: 1849 [2024-11-13 14:19:31,282 INFO L226 Difference]: Without dead ends: 1846 [2024-11-13 14:19:31,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=77, Invalid=384, Unknown=1, NotChecked=0, Total=462 [2024-11-13 14:19:31,283 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 308 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 1909 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 1931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:19:31,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 1096 Invalid, 1931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1909 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-13 14:19:31,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2024-11-13 14:19:31,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1777. [2024-11-13 14:19:31,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1777 states, 1534 states have (on average 1.3963494132985659) internal successors, (2142), 1578 states have internal predecessors, (2142), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2024-11-13 14:19:31,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 2534 transitions. [2024-11-13 14:19:31,634 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 2534 transitions. Word has length 108 [2024-11-13 14:19:31,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:19:31,634 INFO L471 AbstractCegarLoop]: Abstraction has 1777 states and 2534 transitions. [2024-11-13 14:19:31,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.4) internal successors, (74), 11 states have internal predecessors, (74), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 14:19:31,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 2534 transitions. [2024-11-13 14:19:31,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-13 14:19:31,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:19:31,636 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:19:31,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2024-11-13 14:19:31,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:19:31,837 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:19:31,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:19:31,838 INFO L85 PathProgramCache]: Analyzing trace with hash -708532026, now seen corresponding path program 1 times [2024-11-13 14:19:31,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:19:31,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259358832] [2024-11-13 14:19:31,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:19:31,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:19:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:19:31,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1532294616] [2024-11-13 14:19:31,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:19:31,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:19:31,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:19:31,864 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:19:31,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2024-11-13 14:19:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:31,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 14:19:31,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:19:33,603 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 3 proven. 40 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-13 14:19:33,603 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:19:36,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:19:36,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259358832] [2024-11-13 14:19:36,588 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:19:36,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532294616] [2024-11-13 14:19:36,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532294616] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:19:36,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:19:36,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-13 14:19:36,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891321452] [2024-11-13 14:19:36,588 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:19:36,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 14:19:36,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:19:36,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 14:19:36,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:19:36,589 INFO L87 Difference]: Start difference. First operand 1777 states and 2534 transitions. Second operand has 16 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 14:19:40,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:19:40,563 INFO L93 Difference]: Finished difference Result 1841 states and 2573 transitions. [2024-11-13 14:19:40,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-13 14:19:40,563 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 109 [2024-11-13 14:19:40,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:19:40,567 INFO L225 Difference]: With dead ends: 1841 [2024-11-13 14:19:40,567 INFO L226 Difference]: Without dead ends: 1840 [2024-11-13 14:19:40,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2024-11-13 14:19:40,568 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 529 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 1602 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:19:40,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 1170 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1602 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-13 14:19:40,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1840 states. [2024-11-13 14:19:40,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1840 to 1777. [2024-11-13 14:19:40,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1777 states, 1534 states have (on average 1.3924380704041721) internal successors, (2136), 1578 states have internal predecessors, (2136), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2024-11-13 14:19:40,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 2528 transitions. [2024-11-13 14:19:40,983 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 2528 transitions. Word has length 109 [2024-11-13 14:19:40,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:19:40,984 INFO L471 AbstractCegarLoop]: Abstraction has 1777 states and 2528 transitions. [2024-11-13 14:19:40,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 14:19:40,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 2528 transitions. [2024-11-13 14:19:40,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-13 14:19:40,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:19:40,985 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 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] [2024-11-13 14:19:41,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2024-11-13 14:19:41,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:19:41,185 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:19:41,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:19:41,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1466685219, now seen corresponding path program 1 times [2024-11-13 14:19:41,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:19:41,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109995462] [2024-11-13 14:19:41,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:19:41,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:19:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:41,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:19:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:41,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:19:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:41,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:19:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:41,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:19:41,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:41,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:19:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:41,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-13 14:19:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:41,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 14:19:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:41,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:19:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:41,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-13 14:19:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:41,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 14:19:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:41,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 14:19:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:41,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-13 14:19:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:41,352 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:19:41,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:19:41,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109995462] [2024-11-13 14:19:41,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109995462] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:19:41,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331101333] [2024-11-13 14:19:41,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:19:41,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:19:41,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:19:41,356 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:19:41,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2024-11-13 14:19:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:41,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:19:41,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:19:41,688 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:19:41,688 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:19:42,095 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:19:42,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1331101333] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:19:42,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:19:42,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-13 14:19:42,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63817347] [2024-11-13 14:19:42,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:19:42,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:19:42,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:19:42,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:19:42,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:19:42,097 INFO L87 Difference]: Start difference. First operand 1777 states and 2528 transitions. Second operand has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2024-11-13 14:19:43,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:19:43,887 INFO L93 Difference]: Finished difference Result 1931 states and 2706 transitions. [2024-11-13 14:19:43,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:19:43,888 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) Word has length 114 [2024-11-13 14:19:43,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:19:43,891 INFO L225 Difference]: With dead ends: 1931 [2024-11-13 14:19:43,891 INFO L226 Difference]: Without dead ends: 1930 [2024-11-13 14:19:43,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=225, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:19:43,892 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 485 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:19:43,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 459 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 14:19:43,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1930 states. [2024-11-13 14:19:44,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1930 to 1901. [2024-11-13 14:19:44,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1901 states, 1640 states have (on average 1.3817073170731706) internal successors, (2266), 1684 states have internal predecessors, (2266), 214 states have call successors, (214), 2 states have call predecessors, (214), 2 states have return successors, (214), 214 states have call predecessors, (214), 214 states have call successors, (214) [2024-11-13 14:19:44,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2694 transitions. [2024-11-13 14:19:44,250 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2694 transitions. Word has length 114 [2024-11-13 14:19:44,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:19:44,250 INFO L471 AbstractCegarLoop]: Abstraction has 1901 states and 2694 transitions. [2024-11-13 14:19:44,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2024-11-13 14:19:44,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2694 transitions. [2024-11-13 14:19:44,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-13 14:19:44,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:19:44,251 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 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] [2024-11-13 14:19:44,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2024-11-13 14:19:44,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:19:44,452 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:19:44,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:19:44,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1777398583, now seen corresponding path program 1 times [2024-11-13 14:19:44,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:19:44,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340683509] [2024-11-13 14:19:44,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:19:44,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:19:44,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:44,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:19:44,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:44,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:19:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:44,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:19:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:44,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:19:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:44,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:19:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:44,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-13 14:19:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:44,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 14:19:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:44,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:19:44,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:44,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-13 14:19:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:44,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 14:19:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:44,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 14:19:44,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:44,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-13 14:19:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:44,631 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:19:44,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:19:44,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340683509] [2024-11-13 14:19:44,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340683509] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:19:44,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016398897] [2024-11-13 14:19:44,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:19:44,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:19:44,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:19:44,635 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:19:44,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2024-11-13 14:19:44,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:44,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:19:44,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:19:44,981 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:19:44,981 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:19:45,390 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:19:45,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016398897] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:19:45,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:19:45,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2024-11-13 14:19:45,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25899916] [2024-11-13 14:19:45,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:19:45,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:19:45,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:19:45,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:19:45,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:19:45,392 INFO L87 Difference]: Start difference. First operand 1901 states and 2694 transitions. Second operand has 14 states, 13 states have (on average 11.384615384615385) internal successors, (148), 14 states have internal predecessors, (148), 9 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 9 states have call predecessors, (31), 9 states have call successors, (31) [2024-11-13 14:19:48,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:19:48,384 INFO L93 Difference]: Finished difference Result 2466 states and 3492 transitions. [2024-11-13 14:19:48,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-13 14:19:48,385 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.384615384615385) internal successors, (148), 14 states have internal predecessors, (148), 9 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 9 states have call predecessors, (31), 9 states have call successors, (31) Word has length 115 [2024-11-13 14:19:48,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:19:48,388 INFO L225 Difference]: With dead ends: 2466 [2024-11-13 14:19:48,389 INFO L226 Difference]: Without dead ends: 2465 [2024-11-13 14:19:48,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=633, Invalid=1719, Unknown=0, NotChecked=0, Total=2352 [2024-11-13 14:19:48,390 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 1943 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1943 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:19:48,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1943 Valid, 239 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 14:19:48,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2024-11-13 14:19:48,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2341. [2024-11-13 14:19:48,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2341 states, 2018 states have (on average 1.4028741328047571) internal successors, (2831), 2062 states have internal predecessors, (2831), 276 states have call successors, (276), 2 states have call predecessors, (276), 2 states have return successors, (276), 276 states have call predecessors, (276), 276 states have call successors, (276) [2024-11-13 14:19:48,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2341 states to 2341 states and 3383 transitions. [2024-11-13 14:19:48,810 INFO L78 Accepts]: Start accepts. Automaton has 2341 states and 3383 transitions. Word has length 115 [2024-11-13 14:19:48,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:19:48,810 INFO L471 AbstractCegarLoop]: Abstraction has 2341 states and 3383 transitions. [2024-11-13 14:19:48,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.384615384615385) internal successors, (148), 14 states have internal predecessors, (148), 9 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 9 states have call predecessors, (31), 9 states have call successors, (31) [2024-11-13 14:19:48,811 INFO L276 IsEmpty]: Start isEmpty. Operand 2341 states and 3383 transitions. [2024-11-13 14:19:48,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-13 14:19:48,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:19:48,812 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:19:48,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2024-11-13 14:19:49,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2024-11-13 14:19:49,012 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:19:49,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:19:49,013 INFO L85 PathProgramCache]: Analyzing trace with hash -560986914, now seen corresponding path program 1 times [2024-11-13 14:19:49,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:19:49,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384757943] [2024-11-13 14:19:49,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:19:49,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:19:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:49,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:19:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:49,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:19:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:49,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:19:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:49,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:19:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:49,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:19:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:49,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-13 14:19:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:49,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 14:19:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:49,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:19:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:49,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 14:19:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:49,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 14:19:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:49,301 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 6 proven. 20 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-13 14:19:49,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:19:49,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384757943] [2024-11-13 14:19:49,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384757943] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:19:49,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646547255] [2024-11-13 14:19:49,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:19:49,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:19:49,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:19:49,305 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:19:49,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2024-11-13 14:19:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:49,392 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 14:19:49,397 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:19:49,783 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 6 proven. 20 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-13 14:19:49,783 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:19:50,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646547255] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:19:50,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:19:50,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2024-11-13 14:19:50,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038243111] [2024-11-13 14:19:50,249 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:19:50,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:19:50,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:19:50,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:19:50,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:19:50,250 INFO L87 Difference]: Start difference. First operand 2341 states and 3383 transitions. Second operand has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-13 14:19:52,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:19:52,476 INFO L93 Difference]: Finished difference Result 3562 states and 5174 transitions. [2024-11-13 14:19:52,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:19:52,477 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 115 [2024-11-13 14:19:52,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:19:52,483 INFO L225 Difference]: With dead ends: 3562 [2024-11-13 14:19:52,483 INFO L226 Difference]: Without dead ends: 3561 [2024-11-13 14:19:52,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:19:52,485 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 419 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:19:52,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 1081 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 14:19:52,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3561 states. [2024-11-13 14:19:53,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3561 to 2739. [2024-11-13 14:19:53,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2739 states, 2371 states have (on average 1.4057359763812738) internal successors, (3333), 2415 states have internal predecessors, (3333), 321 states have call successors, (321), 2 states have call predecessors, (321), 2 states have return successors, (321), 321 states have call predecessors, (321), 321 states have call successors, (321) [2024-11-13 14:19:53,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2739 states to 2739 states and 3975 transitions. [2024-11-13 14:19:53,093 INFO L78 Accepts]: Start accepts. Automaton has 2739 states and 3975 transitions. Word has length 115 [2024-11-13 14:19:53,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:19:53,094 INFO L471 AbstractCegarLoop]: Abstraction has 2739 states and 3975 transitions. [2024-11-13 14:19:53,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-13 14:19:53,094 INFO L276 IsEmpty]: Start isEmpty. Operand 2739 states and 3975 transitions. [2024-11-13 14:19:53,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-13 14:19:53,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:19:53,094 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 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] [2024-11-13 14:19:53,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2024-11-13 14:19:53,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2024-11-13 14:19:53,298 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:19:53,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:19:53,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1316941722, now seen corresponding path program 1 times [2024-11-13 14:19:53,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:19:53,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621411393] [2024-11-13 14:19:53,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:19:53,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:19:53,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:53,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:19:53,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:53,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:19:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:53,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:19:53,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:53,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:19:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:53,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:19:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:53,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-13 14:19:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:53,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 14:19:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:53,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:19:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:53,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-13 14:19:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:53,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 14:19:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:53,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 14:19:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:53,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-13 14:19:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:53,396 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:19:53,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:19:53,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621411393] [2024-11-13 14:19:53,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621411393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:19:53,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:19:53,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:19:53,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202069997] [2024-11-13 14:19:53,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:19:53,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:19:53,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:19:53,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:19:53,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:19:53,398 INFO L87 Difference]: Start difference. First operand 2739 states and 3975 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 14:19:54,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:19:54,234 INFO L93 Difference]: Finished difference Result 2739 states and 3975 transitions. [2024-11-13 14:19:54,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:19:54,235 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 117 [2024-11-13 14:19:54,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:19:54,238 INFO L225 Difference]: With dead ends: 2739 [2024-11-13 14:19:54,238 INFO L226 Difference]: Without dead ends: 2738 [2024-11-13 14:19:54,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:19:54,239 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 24 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:19:54,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 283 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:19:54,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2738 states. [2024-11-13 14:19:54,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2738 to 2738. [2024-11-13 14:19:54,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2738 states, 2371 states have (on average 1.4010965837199494) internal successors, (3322), 2414 states have internal predecessors, (3322), 321 states have call successors, (321), 2 states have call predecessors, (321), 2 states have return successors, (321), 321 states have call predecessors, (321), 321 states have call successors, (321) [2024-11-13 14:19:54,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2738 states to 2738 states and 3964 transitions. [2024-11-13 14:19:54,914 INFO L78 Accepts]: Start accepts. Automaton has 2738 states and 3964 transitions. Word has length 117 [2024-11-13 14:19:54,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:19:54,914 INFO L471 AbstractCegarLoop]: Abstraction has 2738 states and 3964 transitions. [2024-11-13 14:19:54,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 14:19:54,914 INFO L276 IsEmpty]: Start isEmpty. Operand 2738 states and 3964 transitions. [2024-11-13 14:19:54,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-13 14:19:54,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:19:54,915 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:19:54,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2024-11-13 14:19:54,915 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:19:54,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:19:54,916 INFO L85 PathProgramCache]: Analyzing trace with hash -10993591, now seen corresponding path program 1 times [2024-11-13 14:19:54,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:19:54,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219923894] [2024-11-13 14:19:54,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:19:54,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:19:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:19:54,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [719740266] [2024-11-13 14:19:54,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:19:54,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:19:54,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:19:54,931 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:19:54,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-11-13 14:19:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:19:55,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-13 14:19:55,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:19:56,994 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-13 14:19:56,994 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:19:57,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:19:57,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219923894] [2024-11-13 14:19:57,794 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:19:57,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719740266] [2024-11-13 14:19:57,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719740266] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:19:57,795 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:19:57,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-13 14:19:57,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577704440] [2024-11-13 14:19:57,795 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:19:57,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 14:19:57,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:19:57,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 14:19:57,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:19:57,796 INFO L87 Difference]: Start difference. First operand 2738 states and 3964 transitions. Second operand has 16 states, 15 states have (on average 5.266666666666667) internal successors, (79), 16 states have internal predecessors, (79), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-13 14:20:01,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:20:01,248 INFO L93 Difference]: Finished difference Result 2802 states and 4006 transitions. [2024-11-13 14:20:01,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 14:20:01,248 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.266666666666667) internal successors, (79), 16 states have internal predecessors, (79), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 115 [2024-11-13 14:20:01,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:20:01,254 INFO L225 Difference]: With dead ends: 2802 [2024-11-13 14:20:01,254 INFO L226 Difference]: Without dead ends: 2801 [2024-11-13 14:20:01,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=159, Invalid=597, Unknown=0, NotChecked=0, Total=756 [2024-11-13 14:20:01,256 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 463 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 1492 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:20:01,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 1083 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1492 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 14:20:01,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2024-11-13 14:20:02,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2738. [2024-11-13 14:20:02,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2738 states, 2371 states have (on average 1.3977224799662589) internal successors, (3314), 2414 states have internal predecessors, (3314), 321 states have call successors, (321), 2 states have call predecessors, (321), 2 states have return successors, (321), 321 states have call predecessors, (321), 321 states have call successors, (321) [2024-11-13 14:20:02,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2738 states to 2738 states and 3956 transitions. [2024-11-13 14:20:02,007 INFO L78 Accepts]: Start accepts. Automaton has 2738 states and 3956 transitions. Word has length 115 [2024-11-13 14:20:02,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:20:02,008 INFO L471 AbstractCegarLoop]: Abstraction has 2738 states and 3956 transitions. [2024-11-13 14:20:02,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.266666666666667) internal successors, (79), 16 states have internal predecessors, (79), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-13 14:20:02,008 INFO L276 IsEmpty]: Start isEmpty. Operand 2738 states and 3956 transitions. [2024-11-13 14:20:02,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-13 14:20:02,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:20:02,009 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:20:02,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2024-11-13 14:20:02,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2024-11-13 14:20:02,209 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:20:02,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:20:02,209 INFO L85 PathProgramCache]: Analyzing trace with hash 2124481284, now seen corresponding path program 1 times [2024-11-13 14:20:02,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:20:02,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334225464] [2024-11-13 14:20:02,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:20:02,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:20:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:20:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:20:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:20:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:20:02,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:20:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-13 14:20:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 14:20:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:20:02,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-13 14:20:02,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 14:20:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 14:20:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-13 14:20:02,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,315 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:20:02,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:20:02,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334225464] [2024-11-13 14:20:02,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334225464] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:20:02,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104434210] [2024-11-13 14:20:02,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:20:02,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:20:02,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:20:02,318 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:20:02,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-11-13 14:20:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,411 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:20:02,412 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:20:02,612 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:20:02,613 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:20:02,853 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:20:02,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104434210] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:20:02,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:20:02,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-13 14:20:02,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036596641] [2024-11-13 14:20:02,853 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:20:02,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:20:02,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:20:02,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:20:02,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:20:02,854 INFO L87 Difference]: Start difference. First operand 2738 states and 3956 transitions. Second operand has 7 states, 6 states have (on average 23.333333333333332) internal successors, (140), 7 states have internal predecessors, (140), 6 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-13 14:20:03,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:20:03,742 INFO L93 Difference]: Finished difference Result 3629 states and 5221 transitions. [2024-11-13 14:20:03,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:20:03,742 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 23.333333333333332) internal successors, (140), 7 states have internal predecessors, (140), 6 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 118 [2024-11-13 14:20:03,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:20:03,748 INFO L225 Difference]: With dead ends: 3629 [2024-11-13 14:20:03,748 INFO L226 Difference]: Without dead ends: 3628 [2024-11-13 14:20:03,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:20:03,749 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 96 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:20:03,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 558 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:20:03,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3628 states. [2024-11-13 14:20:04,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3628 to 3476. [2024-11-13 14:20:04,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3476 states, 3014 states have (on average 1.3925016589250165) internal successors, (4197), 3057 states have internal predecessors, (4197), 416 states have call successors, (416), 2 states have call predecessors, (416), 2 states have return successors, (416), 416 states have call predecessors, (416), 416 states have call successors, (416) [2024-11-13 14:20:04,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3476 states to 3476 states and 5029 transitions. [2024-11-13 14:20:04,494 INFO L78 Accepts]: Start accepts. Automaton has 3476 states and 5029 transitions. Word has length 118 [2024-11-13 14:20:04,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:20:04,494 INFO L471 AbstractCegarLoop]: Abstraction has 3476 states and 5029 transitions. [2024-11-13 14:20:04,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 23.333333333333332) internal successors, (140), 7 states have internal predecessors, (140), 6 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-13 14:20:04,495 INFO L276 IsEmpty]: Start isEmpty. Operand 3476 states and 5029 transitions. [2024-11-13 14:20:04,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-13 14:20:04,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:20:04,496 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:20:04,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2024-11-13 14:20:04,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2024-11-13 14:20:04,697 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:20:04,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:20:04,697 INFO L85 PathProgramCache]: Analyzing trace with hash -340801232, now seen corresponding path program 1 times [2024-11-13 14:20:04,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:20:04,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238286297] [2024-11-13 14:20:04,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:20:04,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:20:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:20:04,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1688962551] [2024-11-13 14:20:04,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:20:04,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:20:04,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:20:04,719 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:20:04,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2024-11-13 14:20:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:04,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-13 14:20:04,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:20:06,747 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 3 proven. 43 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-13 14:20:06,747 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:20:19,623 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-13 14:20:19,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:20:19,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238286297] [2024-11-13 14:20:19,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:20:19,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688962551] [2024-11-13 14:20:19,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688962551] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:20:19,624 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:20:19,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 26 [2024-11-13 14:20:19,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044867403] [2024-11-13 14:20:19,624 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:20:19,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-13 14:20:19,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:20:19,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-13 14:20:19,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=613, Unknown=2, NotChecked=0, Total=702 [2024-11-13 14:20:19,625 INFO L87 Difference]: Start difference. First operand 3476 states and 5029 transitions. Second operand has 27 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 26 states have internal predecessors, (148), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-13 14:20:34,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-13 14:20:38,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-13 14:20:48,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-13 14:20:52,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-13 14:20:57,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-13 14:21:03,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-13 14:21:07,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-13 14:21:10,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-13 14:21:16,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-13 14:21:22,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:21:31,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-13 14:21:35,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-13 14:21:41,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-13 14:21:46,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-13 14:21:47,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:21:47,383 INFO L93 Difference]: Finished difference Result 3549 states and 5078 transitions. [2024-11-13 14:21:47,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-13 14:21:47,384 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 26 states have internal predecessors, (148), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 116 [2024-11-13 14:21:47,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:21:47,388 INFO L225 Difference]: With dead ends: 3549 [2024-11-13 14:21:47,389 INFO L226 Difference]: Without dead ends: 3547 [2024-11-13 14:21:47,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 714 ImplicationChecksByTransitivity, 18.9s TimeCoverageRelationStatistics Valid=617, Invalid=3163, Unknown=2, NotChecked=0, Total=3782 [2024-11-13 14:21:47,390 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 1146 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 3303 mSolverCounterSat, 168 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 78.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 3484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 3303 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:21:47,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1146 Valid, 1169 Invalid, 3484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 3303 Invalid, 13 Unknown, 0 Unchecked, 79.3s Time] [2024-11-13 14:21:47,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3547 states. [2024-11-13 14:21:48,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3547 to 3478. [2024-11-13 14:21:48,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3478 states, 3016 states have (on average 1.3710212201591512) internal successors, (4135), 3059 states have internal predecessors, (4135), 416 states have call successors, (416), 2 states have call predecessors, (416), 2 states have return successors, (416), 416 states have call predecessors, (416), 416 states have call successors, (416) [2024-11-13 14:21:48,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3478 states to 3478 states and 4967 transitions. [2024-11-13 14:21:48,094 INFO L78 Accepts]: Start accepts. Automaton has 3478 states and 4967 transitions. Word has length 116 [2024-11-13 14:21:48,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:21:48,094 INFO L471 AbstractCegarLoop]: Abstraction has 3478 states and 4967 transitions. [2024-11-13 14:21:48,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 26 states have internal predecessors, (148), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-13 14:21:48,094 INFO L276 IsEmpty]: Start isEmpty. Operand 3478 states and 4967 transitions. [2024-11-13 14:21:48,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-13 14:21:48,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:21:48,095 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:21:48,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2024-11-13 14:21:48,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2024-11-13 14:21:48,299 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:21:48,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:21:48,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1974903509, now seen corresponding path program 1 times [2024-11-13 14:21:48,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:21:48,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385319008] [2024-11-13 14:21:48,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:21:48,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:21:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:21:48,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [399381948] [2024-11-13 14:21:48,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:21:48,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:21:48,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:21:48,318 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:21:48,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2024-11-13 14:21:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:48,407 INFO L255 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-13 14:21:48,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:21:50,557 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 3 proven. 44 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-13 14:21:50,557 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:21:51,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:21:51,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385319008] [2024-11-13 14:21:51,417 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:21:51,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399381948] [2024-11-13 14:21:51,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399381948] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:21:51,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:21:51,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-13 14:21:51,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891960554] [2024-11-13 14:21:51,417 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:21:51,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-13 14:21:51,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:21:51,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-13 14:21:51,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2024-11-13 14:21:51,418 INFO L87 Difference]: Start difference. First operand 3478 states and 4967 transitions. Second operand has 17 states, 16 states have (on average 5.0625) internal successors, (81), 16 states have internal predecessors, (81), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-13 14:21:55,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:21:55,670 INFO L93 Difference]: Finished difference Result 3551 states and 5035 transitions. [2024-11-13 14:21:55,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-13 14:21:55,671 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.0625) internal successors, (81), 16 states have internal predecessors, (81), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 117 [2024-11-13 14:21:55,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:21:55,676 INFO L225 Difference]: With dead ends: 3551 [2024-11-13 14:21:55,676 INFO L226 Difference]: Without dead ends: 3550 [2024-11-13 14:21:55,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=144, Invalid=558, Unknown=0, NotChecked=0, Total=702 [2024-11-13 14:21:55,677 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 389 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 1956 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 1972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:21:55,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 1304 Invalid, 1972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1956 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-13 14:21:55,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3550 states. [2024-11-13 14:21:56,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3550 to 3478. [2024-11-13 14:21:56,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3478 states, 3016 states have (on average 1.3706896551724137) internal successors, (4134), 3059 states have internal predecessors, (4134), 416 states have call successors, (416), 2 states have call predecessors, (416), 2 states have return successors, (416), 416 states have call predecessors, (416), 416 states have call successors, (416) [2024-11-13 14:21:56,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3478 states to 3478 states and 4966 transitions. [2024-11-13 14:21:56,353 INFO L78 Accepts]: Start accepts. Automaton has 3478 states and 4966 transitions. Word has length 117 [2024-11-13 14:21:56,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:21:56,354 INFO L471 AbstractCegarLoop]: Abstraction has 3478 states and 4966 transitions. [2024-11-13 14:21:56,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.0625) internal successors, (81), 16 states have internal predecessors, (81), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-13 14:21:56,354 INFO L276 IsEmpty]: Start isEmpty. Operand 3478 states and 4966 transitions. [2024-11-13 14:21:56,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-13 14:21:56,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:21:56,355 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 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] [2024-11-13 14:21:56,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2024-11-13 14:21:56,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2024-11-13 14:21:56,556 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:21:56,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:21:56,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1515543972, now seen corresponding path program 1 times [2024-11-13 14:21:56,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:21:56,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461664639] [2024-11-13 14:21:56,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:21:56,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:21:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:56,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:21:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:56,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:21:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:56,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:21:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:56,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:21:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:56,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:21:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:56,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-13 14:21:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:56,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 14:21:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:56,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:21:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:56,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-13 14:21:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:56,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 14:21:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:56,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 14:21:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:56,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-13 14:21:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:56,687 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:21:56,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:21:56,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461664639] [2024-11-13 14:21:56,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461664639] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:21:56,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208349751] [2024-11-13 14:21:56,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:21:56,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:21:56,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:21:56,691 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:21:56,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2024-11-13 14:21:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:56,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:21:56,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:21:57,093 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:21:57,093 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:21:57,379 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:21:57,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208349751] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:21:57,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:21:57,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-13 14:21:57,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464290322] [2024-11-13 14:21:57,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:21:57,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:21:57,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:21:57,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:21:57,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:21:57,381 INFO L87 Difference]: Start difference. First operand 3478 states and 4966 transitions. Second operand has 11 states, 10 states have (on average 17.6) internal successors, (176), 11 states have internal predecessors, (176), 7 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2024-11-13 14:21:58,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:21:58,998 INFO L93 Difference]: Finished difference Result 4959 states and 7072 transitions. [2024-11-13 14:21:58,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:21:58,999 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 17.6) internal successors, (176), 11 states have internal predecessors, (176), 7 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) Word has length 120 [2024-11-13 14:21:58,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:21:59,006 INFO L225 Difference]: With dead ends: 4959 [2024-11-13 14:21:59,006 INFO L226 Difference]: Without dead ends: 4958 [2024-11-13 14:21:59,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:21:59,008 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 459 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:21:59,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 595 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:21:59,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4958 states. [2024-11-13 14:22:00,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4958 to 4026. [2024-11-13 14:22:00,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4026 states, 3500 states have (on average 1.3671428571428572) internal successors, (4785), 3543 states have internal predecessors, (4785), 480 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 480 states have call predecessors, (480), 480 states have call successors, (480) [2024-11-13 14:22:00,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4026 states to 4026 states and 5745 transitions. [2024-11-13 14:22:00,044 INFO L78 Accepts]: Start accepts. Automaton has 4026 states and 5745 transitions. Word has length 120 [2024-11-13 14:22:00,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:22:00,044 INFO L471 AbstractCegarLoop]: Abstraction has 4026 states and 5745 transitions. [2024-11-13 14:22:00,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 17.6) internal successors, (176), 11 states have internal predecessors, (176), 7 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2024-11-13 14:22:00,045 INFO L276 IsEmpty]: Start isEmpty. Operand 4026 states and 5745 transitions. [2024-11-13 14:22:00,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-13 14:22:00,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:22:00,046 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:22:00,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2024-11-13 14:22:00,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:22:00,246 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:22:00,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:22:00,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1092466542, now seen corresponding path program 1 times [2024-11-13 14:22:00,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:22:00,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227241645] [2024-11-13 14:22:00,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:22:00,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:22:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:22:00,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1207152852] [2024-11-13 14:22:00,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:22:00,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:22:00,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:22:00,268 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:22:00,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2024-11-13 14:22:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:00,343 INFO L255 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-13 14:22:00,345 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:22:02,536 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-13 14:22:02,536 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:22:04,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:22:04,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227241645] [2024-11-13 14:22:04,257 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:22:04,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207152852] [2024-11-13 14:22:04,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207152852] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:22:04,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:22:04,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-13 14:22:04,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594717202] [2024-11-13 14:22:04,258 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:22:04,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-13 14:22:04,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:22:04,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-13 14:22:04,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2024-11-13 14:22:04,258 INFO L87 Difference]: Start difference. First operand 4026 states and 5745 transitions. Second operand has 17 states, 16 states have (on average 5.125) internal successors, (82), 16 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-13 14:22:08,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:22:08,063 INFO L93 Difference]: Finished difference Result 4103 states and 5817 transitions. [2024-11-13 14:22:08,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-13 14:22:08,063 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.125) internal successors, (82), 16 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 118 [2024-11-13 14:22:08,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:22:08,070 INFO L225 Difference]: With dead ends: 4103 [2024-11-13 14:22:08,070 INFO L226 Difference]: Without dead ends: 4102 [2024-11-13 14:22:08,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=150, Invalid=552, Unknown=0, NotChecked=0, Total=702 [2024-11-13 14:22:08,072 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 413 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 1653 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 1673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:22:08,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 1134 Invalid, 1673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1653 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-13 14:22:08,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4102 states. [2024-11-13 14:22:08,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4102 to 4026. [2024-11-13 14:22:08,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4026 states, 3500 states have (on average 1.3637142857142857) internal successors, (4773), 3543 states have internal predecessors, (4773), 480 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 480 states have call predecessors, (480), 480 states have call successors, (480) [2024-11-13 14:22:08,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4026 states to 4026 states and 5733 transitions. [2024-11-13 14:22:08,849 INFO L78 Accepts]: Start accepts. Automaton has 4026 states and 5733 transitions. Word has length 118 [2024-11-13 14:22:08,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:22:08,849 INFO L471 AbstractCegarLoop]: Abstraction has 4026 states and 5733 transitions. [2024-11-13 14:22:08,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.125) internal successors, (82), 16 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-13 14:22:08,850 INFO L276 IsEmpty]: Start isEmpty. Operand 4026 states and 5733 transitions. [2024-11-13 14:22:08,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-13 14:22:08,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:22:08,850 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:22:08,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2024-11-13 14:22:09,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:22:09,051 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:22:09,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:22:09,051 INFO L85 PathProgramCache]: Analyzing trace with hash 493275661, now seen corresponding path program 1 times [2024-11-13 14:22:09,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:22:09,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647768067] [2024-11-13 14:22:09,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:22:09,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:22:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:22:09,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [401576557] [2024-11-13 14:22:09,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:22:09,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:22:09,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:22:09,070 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:22:09,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2024-11-13 14:22:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:09,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-13 14:22:09,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:22:11,328 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-13 14:22:11,328 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:22:27,684 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-13 14:22:27,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:22:27,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647768067] [2024-11-13 14:22:27,684 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:22:27,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401576557] [2024-11-13 14:22:27,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401576557] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:22:27,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:22:27,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2024-11-13 14:22:27,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304008019] [2024-11-13 14:22:27,684 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:22:27,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-13 14:22:27,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:22:27,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-13 14:22:27,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=827, Unknown=1, NotChecked=0, Total=930 [2024-11-13 14:22:27,686 INFO L87 Difference]: Start difference. First operand 4026 states and 5733 transitions. Second operand has 31 states, 30 states have (on average 5.2) internal successors, (156), 31 states have internal predecessors, (156), 7 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-13 14:22:52,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:22:59,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:23:14,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:23:26,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:23:32,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:23:32,415 INFO L93 Difference]: Finished difference Result 4106 states and 5786 transitions. [2024-11-13 14:23:32,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-13 14:23:32,416 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 5.2) internal successors, (156), 31 states have internal predecessors, (156), 7 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) Word has length 119 [2024-11-13 14:23:32,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:23:32,422 INFO L225 Difference]: With dead ends: 4106 [2024-11-13 14:23:32,422 INFO L226 Difference]: Without dead ends: 4105 [2024-11-13 14:23:32,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1034 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=648, Invalid=4607, Unknown=1, NotChecked=0, Total=5256 [2024-11-13 14:23:32,424 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 1195 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 4645 mSolverCounterSat, 221 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 4870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 4645 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:23:32,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 1478 Invalid, 4870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 4645 Invalid, 4 Unknown, 0 Unchecked, 53.3s Time] [2024-11-13 14:23:32,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4105 states. [2024-11-13 14:23:33,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4105 to 4026. [2024-11-13 14:23:33,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4026 states, 3500 states have (on average 1.3428571428571427) internal successors, (4700), 3543 states have internal predecessors, (4700), 480 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 480 states have call predecessors, (480), 480 states have call successors, (480) [2024-11-13 14:23:33,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4026 states to 4026 states and 5660 transitions. [2024-11-13 14:23:33,359 INFO L78 Accepts]: Start accepts. Automaton has 4026 states and 5660 transitions. Word has length 119 [2024-11-13 14:23:33,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:23:33,359 INFO L471 AbstractCegarLoop]: Abstraction has 4026 states and 5660 transitions. [2024-11-13 14:23:33,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 5.2) internal successors, (156), 31 states have internal predecessors, (156), 7 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-13 14:23:33,359 INFO L276 IsEmpty]: Start isEmpty. Operand 4026 states and 5660 transitions. [2024-11-13 14:23:33,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-13 14:23:33,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:23:33,360 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:23:33,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2024-11-13 14:23:33,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:23:33,560 INFO L396 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:23:33,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:23:33,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1888323596, now seen corresponding path program 2 times [2024-11-13 14:23:33,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:23:33,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297920078] [2024-11-13 14:23:33,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:23:33,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:23:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:23:33,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [241131876] [2024-11-13 14:23:33,573 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:23:33,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:23:33,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:23:33,576 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:23:33,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2024-11-13 14:23:33,712 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:23:33,712 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:23:33,714 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-13 14:23:33,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:23:35,483 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-13 14:23:35,484 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:23:36,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:23:36,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297920078] [2024-11-13 14:23:36,035 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:23:36,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241131876] [2024-11-13 14:23:36,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241131876] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:23:36,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:23:36,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-13 14:23:36,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078869820] [2024-11-13 14:23:36,036 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:23:36,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:23:36,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:23:36,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:23:36,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:23:36,037 INFO L87 Difference]: Start difference. First operand 4026 states and 5660 transitions. Second operand has 14 states, 13 states have (on average 6.230769230769231) internal successors, (81), 14 states have internal predecessors, (81), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-13 14:23:40,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:23:40,611 INFO L93 Difference]: Finished difference Result 4092 states and 5707 transitions. [2024-11-13 14:23:40,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 14:23:40,612 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.230769230769231) internal successors, (81), 14 states have internal predecessors, (81), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 120 [2024-11-13 14:23:40,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:23:40,618 INFO L225 Difference]: With dead ends: 4092 [2024-11-13 14:23:40,618 INFO L226 Difference]: Without dead ends: 4091 [2024-11-13 14:23:40,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2024-11-13 14:23:40,619 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 359 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 1669 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 1184 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:23:40,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 1184 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1669 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-13 14:23:40,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4091 states. [2024-11-13 14:23:41,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4091 to 4026. [2024-11-13 14:23:41,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4026 states, 3500 states have (on average 1.3425714285714285) internal successors, (4699), 3543 states have internal predecessors, (4699), 480 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 480 states have call predecessors, (480), 480 states have call successors, (480) [2024-11-13 14:23:41,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4026 states to 4026 states and 5659 transitions. [2024-11-13 14:23:41,490 INFO L78 Accepts]: Start accepts. Automaton has 4026 states and 5659 transitions. Word has length 120 [2024-11-13 14:23:41,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:23:41,490 INFO L471 AbstractCegarLoop]: Abstraction has 4026 states and 5659 transitions. [2024-11-13 14:23:41,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.230769230769231) internal successors, (81), 14 states have internal predecessors, (81), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-13 14:23:41,491 INFO L276 IsEmpty]: Start isEmpty. Operand 4026 states and 5659 transitions. [2024-11-13 14:23:41,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-13 14:23:41,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:23:41,491 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:23:41,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2024-11-13 14:23:41,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable83 [2024-11-13 14:23:41,693 INFO L396 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:23:41,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:23:41,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1288694435, now seen corresponding path program 1 times [2024-11-13 14:23:41,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:23:41,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361553083] [2024-11-13 14:23:41,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:23:41,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:23:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:23:41,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [145350087] [2024-11-13 14:23:41,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:23:41,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:23:41,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:23:41,713 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:23:41,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2024-11-13 14:23:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:23:41,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 14:23:41,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:23:42,064 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-13 14:23:42,064 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:23:42,385 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-13 14:23:42,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:23:42,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361553083] [2024-11-13 14:23:42,385 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:23:42,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145350087] [2024-11-13 14:23:42,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145350087] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:23:42,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:23:42,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-13 14:23:42,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837886601] [2024-11-13 14:23:42,386 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:23:42,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:23:42,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:23:42,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:23:42,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:23:42,387 INFO L87 Difference]: Start difference. First operand 4026 states and 5659 transitions. Second operand has 10 states, 9 states have (on average 14.777777777777779) internal successors, (133), 10 states have internal predecessors, (133), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-13 14:23:45,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:23:45,175 INFO L93 Difference]: Finished difference Result 5092 states and 7165 transitions. [2024-11-13 14:23:45,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-13 14:23:45,175 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.777777777777779) internal successors, (133), 10 states have internal predecessors, (133), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 122 [2024-11-13 14:23:45,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:23:45,183 INFO L225 Difference]: With dead ends: 5092 [2024-11-13 14:23:45,183 INFO L226 Difference]: Without dead ends: 5091 [2024-11-13 14:23:45,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=387, Invalid=1095, Unknown=0, NotChecked=0, Total=1482 [2024-11-13 14:23:45,184 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 569 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:23:45,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 1122 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 14:23:45,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5091 states. [2024-11-13 14:23:46,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5091 to 4938. [2024-11-13 14:23:46,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4938 states, 4296 states have (on average 1.3582402234636872) internal successors, (5835), 4339 states have internal predecessors, (5835), 596 states have call successors, (596), 2 states have call predecessors, (596), 2 states have return successors, (596), 596 states have call predecessors, (596), 596 states have call successors, (596) [2024-11-13 14:23:46,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4938 states to 4938 states and 7027 transitions. [2024-11-13 14:23:46,275 INFO L78 Accepts]: Start accepts. Automaton has 4938 states and 7027 transitions. Word has length 122 [2024-11-13 14:23:46,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:23:46,276 INFO L471 AbstractCegarLoop]: Abstraction has 4938 states and 7027 transitions. [2024-11-13 14:23:46,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.777777777777779) internal successors, (133), 10 states have internal predecessors, (133), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-13 14:23:46,276 INFO L276 IsEmpty]: Start isEmpty. Operand 4938 states and 7027 transitions. [2024-11-13 14:23:46,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-13 14:23:46,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:23:46,277 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:23:46,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2024-11-13 14:23:46,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2024-11-13 14:23:46,478 INFO L396 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:23:46,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:23:46,478 INFO L85 PathProgramCache]: Analyzing trace with hash 301736388, now seen corresponding path program 1 times [2024-11-13 14:23:46,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:23:46,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819456024] [2024-11-13 14:23:46,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:23:46,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:23:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:23:46,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:23:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:23:46,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:23:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:23:46,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:23:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:23:46,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 14:23:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:23:46,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:23:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:23:46,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-13 14:23:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:23:46,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 14:23:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:23:46,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:23:46,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:23:46,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 14:23:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:23:46,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 14:23:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:23:46,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-13 14:23:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:23:46,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-13 14:23:46,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:23:46,617 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:23:46,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:23:46,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819456024] [2024-11-13 14:23:46,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819456024] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:23:46,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309613301] [2024-11-13 14:23:46,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:23:46,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:23:46,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:23:46,620 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:23:46,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2024-11-13 14:23:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:23:46,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:23:46,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:23:46,926 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:23:46,926 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:23:47,260 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:23:47,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309613301] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:23:47,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:23:47,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-13 14:23:47,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269151431] [2024-11-13 14:23:47,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:23:47,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:23:47,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:23:47,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:23:47,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:23:47,261 INFO L87 Difference]: Start difference. First operand 4938 states and 7027 transitions. Second operand has 10 states, 9 states have (on average 15.222222222222221) internal successors, (137), 10 states have internal predecessors, (137), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-11-13 14:23:50,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:23:50,478 INFO L93 Difference]: Finished difference Result 7129 states and 10094 transitions. [2024-11-13 14:23:50,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-13 14:23:50,478 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.222222222222221) internal successors, (137), 10 states have internal predecessors, (137), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 129 [2024-11-13 14:23:50,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:23:50,489 INFO L225 Difference]: With dead ends: 7129 [2024-11-13 14:23:50,489 INFO L226 Difference]: Without dead ends: 7128 [2024-11-13 14:23:50,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=212, Invalid=544, Unknown=0, NotChecked=0, Total=756 [2024-11-13 14:23:50,491 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 726 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:23:50,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 1125 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 14:23:50,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7128 states. [2024-11-13 14:23:51,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7128 to 6640. [2024-11-13 14:23:51,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6640 states, 5802 states have (on average 1.3647018269562219) internal successors, (7918), 5845 states have internal predecessors, (7918), 792 states have call successors, (792), 2 states have call predecessors, (792), 2 states have return successors, (792), 792 states have call predecessors, (792), 792 states have call successors, (792) [2024-11-13 14:23:51,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6640 states to 6640 states and 9502 transitions. [2024-11-13 14:23:51,949 INFO L78 Accepts]: Start accepts. Automaton has 6640 states and 9502 transitions. Word has length 129 [2024-11-13 14:23:51,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:23:51,949 INFO L471 AbstractCegarLoop]: Abstraction has 6640 states and 9502 transitions. [2024-11-13 14:23:51,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.222222222222221) internal successors, (137), 10 states have internal predecessors, (137), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-11-13 14:23:51,949 INFO L276 IsEmpty]: Start isEmpty. Operand 6640 states and 9502 transitions. [2024-11-13 14:23:51,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-13 14:23:51,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:23:51,950 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:23:51,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2024-11-13 14:23:52,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:23:52,154 INFO L396 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:23:52,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:23:52,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1177607825, now seen corresponding path program 1 times [2024-11-13 14:23:52,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:23:52,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685896055] [2024-11-13 14:23:52,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:23:52,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:23:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:23:52,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1992957032] [2024-11-13 14:23:52,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:23:52,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:23:52,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:23:52,174 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:23:52,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2024-11-13 14:23:52,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:23:52,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 14:23:52,241 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:23:52,789 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:23:52,790 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:23:53,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:23:53,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685896055] [2024-11-13 14:23:53,334 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:23:53,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992957032] [2024-11-13 14:23:53,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992957032] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:23:53,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:23:53,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-13 14:23:53,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105010538] [2024-11-13 14:23:53,335 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:23:53,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:23:53,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:23:53,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:23:53,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:23:53,335 INFO L87 Difference]: Start difference. First operand 6640 states and 9502 transitions. Second operand has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 14:23:55,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:23:55,372 INFO L93 Difference]: Finished difference Result 6826 states and 9724 transitions. [2024-11-13 14:23:55,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:23:55,373 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 129 [2024-11-13 14:23:55,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:23:55,384 INFO L225 Difference]: With dead ends: 6826 [2024-11-13 14:23:55,384 INFO L226 Difference]: Without dead ends: 6825 [2024-11-13 14:23:55,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:23:55,386 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 173 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:23:55,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 457 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:23:55,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6825 states. [2024-11-13 14:23:56,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6825 to 6647. [2024-11-13 14:23:56,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6647 states, 5809 states have (on average 1.364262351523498) internal successors, (7925), 5852 states have internal predecessors, (7925), 792 states have call successors, (792), 2 states have call predecessors, (792), 2 states have return successors, (792), 792 states have call predecessors, (792), 792 states have call successors, (792) [2024-11-13 14:23:56,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6647 states to 6647 states and 9509 transitions. [2024-11-13 14:23:56,919 INFO L78 Accepts]: Start accepts. Automaton has 6647 states and 9509 transitions. Word has length 129 [2024-11-13 14:23:56,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:23:56,920 INFO L471 AbstractCegarLoop]: Abstraction has 6647 states and 9509 transitions. [2024-11-13 14:23:56,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 14:23:56,920 INFO L276 IsEmpty]: Start isEmpty. Operand 6647 states and 9509 transitions. [2024-11-13 14:23:56,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-13 14:23:56,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:23:56,921 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:23:56,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0 [2024-11-13 14:23:57,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:23:57,121 INFO L396 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:23:57,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:23:57,122 INFO L85 PathProgramCache]: Analyzing trace with hash 981280979, now seen corresponding path program 1 times [2024-11-13 14:23:57,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:23:57,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225897593] [2024-11-13 14:23:57,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:23:57,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:23:57,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:23:57,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [637853815] [2024-11-13 14:23:57,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:23:57,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:23:57,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:23:57,147 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:23:57,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2024-11-13 14:23:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:23:57,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 14:23:57,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:23:59,611 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-13 14:23:59,611 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:24:12,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:12,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225897593] [2024-11-13 14:24:12,133 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:24:12,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637853815] [2024-11-13 14:24:12,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637853815] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:24:12,133 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:24:12,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-13 14:24:12,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362126919] [2024-11-13 14:24:12,133 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:24:12,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:24:12,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:12,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:24:12,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=258, Unknown=3, NotChecked=0, Total=342 [2024-11-13 14:24:12,134 INFO L87 Difference]: Start difference. First operand 6647 states and 9509 transitions. Second operand has 14 states, 13 states have (on average 6.538461538461538) internal successors, (85), 14 states have internal predecessors, (85), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 14:24:17,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:17,652 INFO L93 Difference]: Finished difference Result 8337 states and 11729 transitions. [2024-11-13 14:24:17,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 14:24:17,652 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.538461538461538) internal successors, (85), 14 states have internal predecessors, (85), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 136 [2024-11-13 14:24:17,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:17,668 INFO L225 Difference]: With dead ends: 8337 [2024-11-13 14:24:17,668 INFO L226 Difference]: Without dead ends: 8335 [2024-11-13 14:24:17,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=178, Invalid=521, Unknown=3, NotChecked=0, Total=702 [2024-11-13 14:24:17,671 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 487 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 1596 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 1633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:17,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 1385 Invalid, 1633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1596 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-13 14:24:17,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8335 states. [2024-11-13 14:24:19,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8335 to 7753. [2024-11-13 14:24:19,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7753 states, 6782 states have (on average 1.3465054556178118) internal successors, (9132), 6825 states have internal predecessors, (9132), 925 states have call successors, (925), 2 states have call predecessors, (925), 2 states have return successors, (925), 925 states have call predecessors, (925), 925 states have call successors, (925) [2024-11-13 14:24:19,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7753 states to 7753 states and 10982 transitions. [2024-11-13 14:24:19,505 INFO L78 Accepts]: Start accepts. Automaton has 7753 states and 10982 transitions. Word has length 136 [2024-11-13 14:24:19,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:19,506 INFO L471 AbstractCegarLoop]: Abstraction has 7753 states and 10982 transitions. [2024-11-13 14:24:19,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.538461538461538) internal successors, (85), 14 states have internal predecessors, (85), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 14:24:19,506 INFO L276 IsEmpty]: Start isEmpty. Operand 7753 states and 10982 transitions. [2024-11-13 14:24:19,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-13 14:24:19,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:19,507 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:24:19,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2024-11-13 14:24:19,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:24:19,711 INFO L396 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:24:19,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:19,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1096207665, now seen corresponding path program 1 times [2024-11-13 14:24:19,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:19,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231411552] [2024-11-13 14:24:19,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:19,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:24:19,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1891527486] [2024-11-13 14:24:19,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:19,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:24:19,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:24:19,763 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:24:19,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2024-11-13 14:24:19,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:19,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 14:24:19,908 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:24:21,641 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 6 proven. 40 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-13 14:24:21,641 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:24:22,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:22,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231411552] [2024-11-13 14:24:22,468 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:24:22,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891527486] [2024-11-13 14:24:22,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891527486] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:24:22,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:24:22,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-13 14:24:22,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125068559] [2024-11-13 14:24:22,469 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:24:22,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 14:24:22,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:22,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 14:24:22,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:24:22,470 INFO L87 Difference]: Start difference. First operand 7753 states and 10982 transitions. Second operand has 16 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 14:24:27,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:27,072 INFO L93 Difference]: Finished difference Result 8692 states and 12246 transitions. [2024-11-13 14:24:27,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-13 14:24:27,072 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 138 [2024-11-13 14:24:27,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:27,084 INFO L225 Difference]: With dead ends: 8692 [2024-11-13 14:24:27,085 INFO L226 Difference]: Without dead ends: 8690 [2024-11-13 14:24:27,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 14:24:27,087 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 512 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 1381 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:27,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 946 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1381 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 14:24:27,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8690 states. [2024-11-13 14:24:28,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8690 to 6527. [2024-11-13 14:24:28,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6527 states, 5712 states have (on average 1.361169467787115) internal successors, (7775), 5755 states have internal predecessors, (7775), 769 states have call successors, (769), 2 states have call predecessors, (769), 2 states have return successors, (769), 769 states have call predecessors, (769), 769 states have call successors, (769) [2024-11-13 14:24:28,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6527 states to 6527 states and 9313 transitions. [2024-11-13 14:24:28,559 INFO L78 Accepts]: Start accepts. Automaton has 6527 states and 9313 transitions. Word has length 138 [2024-11-13 14:24:28,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:28,559 INFO L471 AbstractCegarLoop]: Abstraction has 6527 states and 9313 transitions. [2024-11-13 14:24:28,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 14:24:28,559 INFO L276 IsEmpty]: Start isEmpty. Operand 6527 states and 9313 transitions. [2024-11-13 14:24:28,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-13 14:24:28,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:28,560 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:24:28,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0 [2024-11-13 14:24:28,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:24:28,760 INFO L396 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:24:28,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:28,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1881778827, now seen corresponding path program 1 times [2024-11-13 14:24:28,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:28,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975781929] [2024-11-13 14:24:28,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:28,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:24:28,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2097693720] [2024-11-13 14:24:28,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:28,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:24:28,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:24:28,784 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:24:28,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2024-11-13 14:24:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:28,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-13 14:24:28,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:24:31,008 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 26 proven. 13 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-13 14:24:31,008 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:24:36,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:36,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975781929] [2024-11-13 14:24:36,622 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:24:36,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097693720] [2024-11-13 14:24:36,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097693720] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:24:36,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:24:36,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-13 14:24:36,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365881641] [2024-11-13 14:24:36,623 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:24:36,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:24:36,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:36,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:24:36,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=204, Unknown=1, NotChecked=0, Total=272 [2024-11-13 14:24:36,624 INFO L87 Difference]: Start difference. First operand 6527 states and 9313 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 14:24:40,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:40,583 INFO L93 Difference]: Finished difference Result 7691 states and 10826 transitions. [2024-11-13 14:24:40,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:24:40,583 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 138 [2024-11-13 14:24:40,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:40,595 INFO L225 Difference]: With dead ends: 7691 [2024-11-13 14:24:40,595 INFO L226 Difference]: Without dead ends: 7688 [2024-11-13 14:24:40,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=100, Invalid=279, Unknown=1, NotChecked=0, Total=380 [2024-11-13 14:24:40,597 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 358 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:40,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 873 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 14:24:40,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7688 states. [2024-11-13 14:24:42,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7688 to 6550. [2024-11-13 14:24:42,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6550 states, 5735 states have (on average 1.3604184829991282) internal successors, (7802), 5778 states have internal predecessors, (7802), 769 states have call successors, (769), 2 states have call predecessors, (769), 2 states have return successors, (769), 769 states have call predecessors, (769), 769 states have call successors, (769) [2024-11-13 14:24:42,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6550 states to 6550 states and 9340 transitions. [2024-11-13 14:24:42,245 INFO L78 Accepts]: Start accepts. Automaton has 6550 states and 9340 transitions. Word has length 138 [2024-11-13 14:24:42,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:42,245 INFO L471 AbstractCegarLoop]: Abstraction has 6550 states and 9340 transitions. [2024-11-13 14:24:42,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 14:24:42,245 INFO L276 IsEmpty]: Start isEmpty. Operand 6550 states and 9340 transitions. [2024-11-13 14:24:42,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 14:24:42,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:42,246 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:24:42,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2024-11-13 14:24:42,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2024-11-13 14:24:42,447 INFO L396 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:24:42,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:42,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1768345273, now seen corresponding path program 1 times [2024-11-13 14:24:42,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:42,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625015890] [2024-11-13 14:24:42,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:42,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:24:42,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [848313592] [2024-11-13 14:24:42,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:42,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:24:42,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:24:42,462 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:24:42,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2024-11-13 14:24:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:42,539 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 14:24:42,541 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:24:43,688 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:24:43,688 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:24:49,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:49,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625015890] [2024-11-13 14:24:49,395 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:24:49,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848313592] [2024-11-13 14:24:49,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848313592] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:24:49,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:24:49,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-13 14:24:49,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371440362] [2024-11-13 14:24:49,396 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:24:49,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:24:49,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:49,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:24:49,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=143, Unknown=1, NotChecked=0, Total=182 [2024-11-13 14:24:49,397 INFO L87 Difference]: Start difference. First operand 6550 states and 9340 transitions. Second operand has 9 states, 8 states have (on average 11.0) internal successors, (88), 9 states have internal predecessors, (88), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 14:24:53,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:53,958 INFO L93 Difference]: Finished difference Result 6638 states and 9418 transitions. [2024-11-13 14:24:53,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 14:24:53,959 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 9 states have internal predecessors, (88), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 142 [2024-11-13 14:24:53,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:53,968 INFO L225 Difference]: With dead ends: 6638 [2024-11-13 14:24:53,968 INFO L226 Difference]: Without dead ends: 6637 [2024-11-13 14:24:53,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=77, Invalid=264, Unknown=1, NotChecked=0, Total=342 [2024-11-13 14:24:53,969 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 114 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:53,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 823 Invalid, 1079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-13 14:24:53,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6637 states. [2024-11-13 14:24:55,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6637 to 6562. [2024-11-13 14:24:55,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6562 states, 5747 states have (on average 1.3601879241343309) internal successors, (7817), 5790 states have internal predecessors, (7817), 769 states have call successors, (769), 2 states have call predecessors, (769), 2 states have return successors, (769), 769 states have call predecessors, (769), 769 states have call successors, (769) [2024-11-13 14:24:55,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6562 states to 6562 states and 9355 transitions. [2024-11-13 14:24:55,510 INFO L78 Accepts]: Start accepts. Automaton has 6562 states and 9355 transitions. Word has length 142 [2024-11-13 14:24:55,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:55,511 INFO L471 AbstractCegarLoop]: Abstraction has 6562 states and 9355 transitions. [2024-11-13 14:24:55,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 9 states have internal predecessors, (88), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 14:24:55,511 INFO L276 IsEmpty]: Start isEmpty. Operand 6562 states and 9355 transitions. [2024-11-13 14:24:55,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-13 14:24:55,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:55,513 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:24:55,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2024-11-13 14:24:55,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:24:55,713 INFO L396 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:24:55,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:55,714 INFO L85 PathProgramCache]: Analyzing trace with hash -649932428, now seen corresponding path program 1 times [2024-11-13 14:24:55,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:55,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700159811] [2024-11-13 14:24:55,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:55,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:24:55,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [527091154] [2024-11-13 14:24:55,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:55,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:24:55,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:24:55,738 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:24:55,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2024-11-13 14:24:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:55,817 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:24:55,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:24:57,324 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 2 proven. 48 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:24:57,324 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:24:57,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:57,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700159811] [2024-11-13 14:24:57,471 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:24:57,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527091154] [2024-11-13 14:24:57,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527091154] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:24:57,472 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:24:57,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-13 14:24:57,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489637172] [2024-11-13 14:24:57,472 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:24:57,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:24:57,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:57,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:24:57,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:24:57,473 INFO L87 Difference]: Start difference. First operand 6562 states and 9355 transitions. Second operand has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 12 states have internal predecessors, (89), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 14:25:00,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:25:00,502 INFO L93 Difference]: Finished difference Result 6611 states and 9376 transitions. [2024-11-13 14:25:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:25:00,503 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 12 states have internal predecessors, (89), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 143 [2024-11-13 14:25:00,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:25:00,519 INFO L225 Difference]: With dead ends: 6611 [2024-11-13 14:25:00,519 INFO L226 Difference]: Without dead ends: 6610 [2024-11-13 14:25:00,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:25:00,522 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 229 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:25:00,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 753 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 14:25:00,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6610 states. [2024-11-13 14:25:02,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6610 to 6562. [2024-11-13 14:25:02,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6562 states, 5747 states have (on average 1.3600139203062467) internal successors, (7816), 5790 states have internal predecessors, (7816), 769 states have call successors, (769), 2 states have call predecessors, (769), 2 states have return successors, (769), 769 states have call predecessors, (769), 769 states have call successors, (769) [2024-11-13 14:25:02,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6562 states to 6562 states and 9354 transitions. [2024-11-13 14:25:02,084 INFO L78 Accepts]: Start accepts. Automaton has 6562 states and 9354 transitions. Word has length 143 [2024-11-13 14:25:02,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:25:02,085 INFO L471 AbstractCegarLoop]: Abstraction has 6562 states and 9354 transitions. [2024-11-13 14:25:02,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 12 states have internal predecessors, (89), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 14:25:02,085 INFO L276 IsEmpty]: Start isEmpty. Operand 6562 states and 9354 transitions. [2024-11-13 14:25:02,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-13 14:25:02,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:25:02,086 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:25:02,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2024-11-13 14:25:02,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:25:02,286 INFO L396 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:25:02,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:25:02,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1015871202, now seen corresponding path program 1 times [2024-11-13 14:25:02,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:25:02,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277777634] [2024-11-13 14:25:02,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:25:02,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:25:02,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:25:02,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [991616450] [2024-11-13 14:25:02,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:25:02,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:25:02,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:25:02,303 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:25:02,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2024-11-13 14:25:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:02,387 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:25:02,390 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:25:04,385 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:25:04,385 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:25:35,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:25:35,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277777634] [2024-11-13 14:25:35,473 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:25:35,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991616450] [2024-11-13 14:25:35,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991616450] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:25:35,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:25:35,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-13 14:25:35,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361225051] [2024-11-13 14:25:35,474 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:25:35,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:25:35,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:25:35,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:25:35,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=245, Unknown=7, NotChecked=0, Total=306 [2024-11-13 14:25:35,475 INFO L87 Difference]: Start difference. First operand 6562 states and 9354 transitions. Second operand has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 12 states have internal predecessors, (89), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 14:25:40,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:25:40,637 INFO L93 Difference]: Finished difference Result 7974 states and 11170 transitions. [2024-11-13 14:25:40,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 14:25:40,638 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 12 states have internal predecessors, (89), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 143 [2024-11-13 14:25:40,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:25:40,647 INFO L225 Difference]: With dead ends: 7974 [2024-11-13 14:25:40,647 INFO L226 Difference]: Without dead ends: 7972 [2024-11-13 14:25:40,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 30.3s TimeCoverageRelationStatistics Valid=125, Invalid=518, Unknown=7, NotChecked=0, Total=650 [2024-11-13 14:25:40,648 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 440 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:25:40,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 1013 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-13 14:25:40,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7972 states. [2024-11-13 14:25:42,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7972 to 6580. [2024-11-13 14:25:42,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6580 states, 5765 states have (on average 1.359410234171726) internal successors, (7837), 5808 states have internal predecessors, (7837), 769 states have call successors, (769), 2 states have call predecessors, (769), 2 states have return successors, (769), 769 states have call predecessors, (769), 769 states have call successors, (769) [2024-11-13 14:25:42,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6580 states to 6580 states and 9375 transitions. [2024-11-13 14:25:42,168 INFO L78 Accepts]: Start accepts. Automaton has 6580 states and 9375 transitions. Word has length 143 [2024-11-13 14:25:42,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:25:42,169 INFO L471 AbstractCegarLoop]: Abstraction has 6580 states and 9375 transitions. [2024-11-13 14:25:42,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 12 states have internal predecessors, (89), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 14:25:42,169 INFO L276 IsEmpty]: Start isEmpty. Operand 6580 states and 9375 transitions. [2024-11-13 14:25:42,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-13 14:25:42,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:25:42,170 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:25:42,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Forceful destruction successful, exit code 0 [2024-11-13 14:25:42,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:25:42,370 INFO L396 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:25:42,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:25:42,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1326931368, now seen corresponding path program 1 times [2024-11-13 14:25:42,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:25:42,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363004] [2024-11-13 14:25:42,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:25:42,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:25:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:25:42,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [124343160] [2024-11-13 14:25:42,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:25:42,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:25:42,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:25:42,393 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:25:42,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2024-11-13 14:25:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:42,479 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 14:25:42,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:25:43,518 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 4 proven. 47 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:25:43,518 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:25:44,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:25:44,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363004] [2024-11-13 14:25:44,171 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:25:44,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124343160] [2024-11-13 14:25:44,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124343160] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:25:44,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:25:44,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-13 14:25:44,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145881104] [2024-11-13 14:25:44,171 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:25:44,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:25:44,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:25:44,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:25:44,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:25:44,172 INFO L87 Difference]: Start difference. First operand 6580 states and 9375 transitions. Second operand has 11 states, 10 states have (on average 9.0) internal successors, (90), 11 states have internal predecessors, (90), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 14:25:47,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:25:47,121 INFO L93 Difference]: Finished difference Result 6628 states and 9396 transitions. [2024-11-13 14:25:47,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:25:47,122 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.0) internal successors, (90), 11 states have internal predecessors, (90), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 144 [2024-11-13 14:25:47,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:25:47,131 INFO L225 Difference]: With dead ends: 6628 [2024-11-13 14:25:47,131 INFO L226 Difference]: Without dead ends: 6627 [2024-11-13 14:25:47,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:25:47,133 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 149 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:25:47,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 734 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 14:25:47,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6627 states. [2024-11-13 14:25:48,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6627 to 6580. [2024-11-13 14:25:48,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6580 states, 5765 states have (on average 1.3587163920208152) internal successors, (7833), 5808 states have internal predecessors, (7833), 769 states have call successors, (769), 2 states have call predecessors, (769), 2 states have return successors, (769), 769 states have call predecessors, (769), 769 states have call successors, (769) [2024-11-13 14:25:48,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6580 states to 6580 states and 9371 transitions. [2024-11-13 14:25:48,764 INFO L78 Accepts]: Start accepts. Automaton has 6580 states and 9371 transitions. Word has length 144 [2024-11-13 14:25:48,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:25:48,765 INFO L471 AbstractCegarLoop]: Abstraction has 6580 states and 9371 transitions. [2024-11-13 14:25:48,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.0) internal successors, (90), 11 states have internal predecessors, (90), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 14:25:48,765 INFO L276 IsEmpty]: Start isEmpty. Operand 6580 states and 9371 transitions. [2024-11-13 14:25:48,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-13 14:25:48,766 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:25:48,766 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:25:48,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2024-11-13 14:25:48,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:25:48,966 INFO L396 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:25:48,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:25:48,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1427236005, now seen corresponding path program 1 times [2024-11-13 14:25:48,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:25:48,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135732317] [2024-11-13 14:25:48,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:25:48,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:25:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:25:48,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [432062931] [2024-11-13 14:25:48,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:25:48,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:25:48,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:25:48,984 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:25:48,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2024-11-13 14:25:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:49,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 14:25:49,062 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:25:52,363 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-13 14:25:52,363 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:25:54,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:25:54,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135732317] [2024-11-13 14:25:54,449 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:25:54,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432062931] [2024-11-13 14:25:54,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432062931] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:25:54,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:25:54,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-13 14:25:54,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040027394] [2024-11-13 14:25:54,449 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:25:54,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 14:25:54,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:25:54,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 14:25:54,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=537, Unknown=0, NotChecked=0, Total=650 [2024-11-13 14:25:54,450 INFO L87 Difference]: Start difference. First operand 6580 states and 9371 transitions. Second operand has 18 states, 17 states have (on average 5.470588235294118) internal successors, (93), 18 states have internal predecessors, (93), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 14:26:01,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:26:01,363 INFO L93 Difference]: Finished difference Result 7186 states and 10144 transitions. [2024-11-13 14:26:01,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-13 14:26:01,363 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.470588235294118) internal successors, (93), 18 states have internal predecessors, (93), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 144 [2024-11-13 14:26:01,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:26:01,375 INFO L225 Difference]: With dead ends: 7186 [2024-11-13 14:26:01,375 INFO L226 Difference]: Without dead ends: 7184 [2024-11-13 14:26:01,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=262, Invalid=1220, Unknown=0, NotChecked=0, Total=1482 [2024-11-13 14:26:01,378 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 480 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 2363 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 2405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:26:01,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 805 Invalid, 2405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2363 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-13 14:26:01,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7184 states. [2024-11-13 14:26:02,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7184 to 6599. [2024-11-13 14:26:02,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6599 states, 5783 states have (on average 1.3575998616634966) internal successors, (7851), 5826 states have internal predecessors, (7851), 770 states have call successors, (770), 2 states have call predecessors, (770), 2 states have return successors, (770), 770 states have call predecessors, (770), 770 states have call successors, (770) [2024-11-13 14:26:02,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6599 states to 6599 states and 9391 transitions. [2024-11-13 14:26:02,965 INFO L78 Accepts]: Start accepts. Automaton has 6599 states and 9391 transitions. Word has length 144 [2024-11-13 14:26:02,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:26:02,965 INFO L471 AbstractCegarLoop]: Abstraction has 6599 states and 9391 transitions. [2024-11-13 14:26:02,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.470588235294118) internal successors, (93), 18 states have internal predecessors, (93), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 14:26:02,965 INFO L276 IsEmpty]: Start isEmpty. Operand 6599 states and 9391 transitions. [2024-11-13 14:26:02,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-13 14:26:02,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:26:02,967 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:26:02,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2024-11-13 14:26:03,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:26:03,167 INFO L396 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:26:03,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:26:03,167 INFO L85 PathProgramCache]: Analyzing trace with hash -329360575, now seen corresponding path program 1 times [2024-11-13 14:26:03,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:26:03,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608384977] [2024-11-13 14:26:03,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:26:03,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:26:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:26:03,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1939714465] [2024-11-13 14:26:03,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:26:03,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:26:03,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:26:03,181 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:26:03,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2024-11-13 14:26:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:03,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 14:26:03,258 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:26:04,184 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 2 proven. 58 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-13 14:26:04,184 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:26:04,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:26:04,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608384977] [2024-11-13 14:26:04,577 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:26:04,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939714465] [2024-11-13 14:26:04,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939714465] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:26:04,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:26:04,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-13 14:26:04,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780249040] [2024-11-13 14:26:04,578 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:26:04,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:26:04,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:26:04,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:26:04,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:26:04,579 INFO L87 Difference]: Start difference. First operand 6599 states and 9391 transitions. Second operand has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 10 states have internal predecessors, (82), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-13 14:26:08,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:26:08,459 INFO L93 Difference]: Finished difference Result 9725 states and 14035 transitions. [2024-11-13 14:26:08,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 14:26:08,460 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 10 states have internal predecessors, (82), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 146 [2024-11-13 14:26:08,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:26:08,474 INFO L225 Difference]: With dead ends: 9725 [2024-11-13 14:26:08,474 INFO L226 Difference]: Without dead ends: 9721 [2024-11-13 14:26:08,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:26:08,476 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 249 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:26:08,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 732 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 14:26:08,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9721 states. [2024-11-13 14:26:10,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9721 to 9569. [2024-11-13 14:26:10,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9569 states, 8377 states have (on average 1.3539453264891965) internal successors, (11342), 8420 states have internal predecessors, (11342), 1146 states have call successors, (1146), 2 states have call predecessors, (1146), 2 states have return successors, (1146), 1146 states have call predecessors, (1146), 1146 states have call successors, (1146) [2024-11-13 14:26:10,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9569 states to 9569 states and 13634 transitions. [2024-11-13 14:26:10,808 INFO L78 Accepts]: Start accepts. Automaton has 9569 states and 13634 transitions. Word has length 146 [2024-11-13 14:26:10,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:26:10,808 INFO L471 AbstractCegarLoop]: Abstraction has 9569 states and 13634 transitions. [2024-11-13 14:26:10,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 10 states have internal predecessors, (82), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-13 14:26:10,808 INFO L276 IsEmpty]: Start isEmpty. Operand 9569 states and 13634 transitions. [2024-11-13 14:26:10,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-13 14:26:10,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:26:10,809 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:26:10,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2024-11-13 14:26:11,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:26:11,010 INFO L396 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:26:11,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:26:11,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1294643008, now seen corresponding path program 1 times [2024-11-13 14:26:11,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:26:11,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972598831] [2024-11-13 14:26:11,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:26:11,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:26:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:26:11,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [762484981] [2024-11-13 14:26:11,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:26:11,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:26:11,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:26:11,028 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:26:11,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2024-11-13 14:26:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:11,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 14:26:11,101 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:26:14,639 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-13 14:26:14,639 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:26:17,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:26:17,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972598831] [2024-11-13 14:26:17,812 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:26:17,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762484981] [2024-11-13 14:26:17,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762484981] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:26:17,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:26:17,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-13 14:26:17,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982448525] [2024-11-13 14:26:17,813 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:26:17,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 14:26:17,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:26:17,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 14:26:17,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2024-11-13 14:26:17,814 INFO L87 Difference]: Start difference. First operand 9569 states and 13634 transitions. Second operand has 18 states, 17 states have (on average 5.529411764705882) internal successors, (94), 18 states have internal predecessors, (94), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 14:26:26,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:26:26,582 INFO L93 Difference]: Finished difference Result 10350 states and 14637 transitions. [2024-11-13 14:26:26,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-13 14:26:26,583 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.529411764705882) internal successors, (94), 18 states have internal predecessors, (94), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 145 [2024-11-13 14:26:26,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:26:26,599 INFO L225 Difference]: With dead ends: 10350 [2024-11-13 14:26:26,600 INFO L226 Difference]: Without dead ends: 10348 [2024-11-13 14:26:26,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=267, Invalid=1293, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 14:26:26,603 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 476 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 2936 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 2980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:26:26,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 953 Invalid, 2980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2936 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-13 14:26:26,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10348 states. [2024-11-13 14:26:29,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10348 to 9571. [2024-11-13 14:26:29,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9571 states, 8379 states have (on average 1.353860842582647) internal successors, (11344), 8422 states have internal predecessors, (11344), 1146 states have call successors, (1146), 2 states have call predecessors, (1146), 2 states have return successors, (1146), 1146 states have call predecessors, (1146), 1146 states have call successors, (1146) [2024-11-13 14:26:29,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9571 states to 9571 states and 13636 transitions. [2024-11-13 14:26:29,038 INFO L78 Accepts]: Start accepts. Automaton has 9571 states and 13636 transitions. Word has length 145 [2024-11-13 14:26:29,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:26:29,038 INFO L471 AbstractCegarLoop]: Abstraction has 9571 states and 13636 transitions. [2024-11-13 14:26:29,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.529411764705882) internal successors, (94), 18 states have internal predecessors, (94), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 14:26:29,038 INFO L276 IsEmpty]: Start isEmpty. Operand 9571 states and 13636 transitions. [2024-11-13 14:26:29,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-13 14:26:29,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:26:29,039 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:26:29,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Ended with exit code 0 [2024-11-13 14:26:29,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable96 [2024-11-13 14:26:29,240 INFO L396 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:26:29,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:26:29,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1620243131, now seen corresponding path program 1 times [2024-11-13 14:26:29,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:26:29,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126233686] [2024-11-13 14:26:29,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:26:29,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:26:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:26:29,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1017433094] [2024-11-13 14:26:29,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:26:29,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:26:29,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:26:29,254 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:26:29,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2024-11-13 14:26:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:29,330 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 14:26:29,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:26:30,424 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-13 14:26:30,424 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:26:31,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:26:31,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126233686] [2024-11-13 14:26:31,474 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:26:31,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017433094] [2024-11-13 14:26:31,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017433094] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:26:31,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:26:31,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-13 14:26:31,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395938083] [2024-11-13 14:26:31,474 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:26:31,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:26:31,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:26:31,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:26:31,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:26:31,475 INFO L87 Difference]: Start difference. First operand 9571 states and 13636 transitions. Second operand has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-13 14:26:35,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:26:35,523 INFO L93 Difference]: Finished difference Result 11079 states and 15752 transitions. [2024-11-13 14:26:35,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:26:35,524 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 147 [2024-11-13 14:26:35,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:26:35,539 INFO L225 Difference]: With dead ends: 11079 [2024-11-13 14:26:35,539 INFO L226 Difference]: Without dead ends: 11077 [2024-11-13 14:26:35,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:26:35,541 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 156 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:26:35,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 878 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 14:26:35,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11077 states. [2024-11-13 14:26:38,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11077 to 10951. [2024-11-13 14:26:38,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10951 states, 9579 states have (on average 1.3403278003967012) internal successors, (12839), 9622 states have internal predecessors, (12839), 1326 states have call successors, (1326), 2 states have call predecessors, (1326), 2 states have return successors, (1326), 1326 states have call predecessors, (1326), 1326 states have call successors, (1326) [2024-11-13 14:26:38,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10951 states to 10951 states and 15491 transitions. [2024-11-13 14:26:38,226 INFO L78 Accepts]: Start accepts. Automaton has 10951 states and 15491 transitions. Word has length 147 [2024-11-13 14:26:38,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:26:38,227 INFO L471 AbstractCegarLoop]: Abstraction has 10951 states and 15491 transitions. [2024-11-13 14:26:38,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-13 14:26:38,227 INFO L276 IsEmpty]: Start isEmpty. Operand 10951 states and 15491 transitions. [2024-11-13 14:26:38,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-13 14:26:38,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:26:38,228 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:26:38,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2024-11-13 14:26:38,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable97 [2024-11-13 14:26:38,428 INFO L396 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-13 14:26:38,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:26:38,429 INFO L85 PathProgramCache]: Analyzing trace with hash -424237206, now seen corresponding path program 2 times [2024-11-13 14:26:38,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:26:38,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867627398] [2024-11-13 14:26:38,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:26:38,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:26:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:26:38,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1002064939] [2024-11-13 14:26:38,453 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:26:38,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:26:38,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:26:38,456 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:26:38,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4e79c6-3663-4fcd-abee-368180ced5f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2024-11-13 14:26:38,547 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:26:38,547 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:26:38,549 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 14:26:38,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:26:39,937 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:26:39,938 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:26:40,917 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:26:40,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:26:40,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867627398] [2024-11-13 14:26:40,917 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:26:40,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002064939] [2024-11-13 14:26:40,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002064939] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:26:40,917 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:26:40,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-11-13 14:26:40,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772097068] [2024-11-13 14:26:40,917 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:26:40,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 14:26:40,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:26:40,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 14:26:40,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2024-11-13 14:26:40,919 INFO L87 Difference]: Start difference. First operand 10951 states and 15491 transitions. Second operand has 22 states, 21 states have (on average 8.333333333333334) internal successors, (175), 22 states have internal predecessors, (175), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20)