./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound50.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_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/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_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/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_46b2e344-3f0f-4587-afdb-5ad1839d0063/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 3b27cf24a9b45c76034fb9a60cae976f5ca5dfa5338fef373d189f4ae84c7ed4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:15:44,503 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:15:44,580 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 15:15:44,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:15:44,588 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:15:44,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:15:44,618 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:15:44,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:15:44,619 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:15:44,620 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:15:44,620 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:15:44,620 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:15:44,620 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:15:44,621 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:15:44,621 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:15:44,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:15:44,621 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:15:44,622 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:15:44,622 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:15:44,622 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:15:44,622 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:15:44,622 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:15:44,623 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:15:44,623 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:15:44,623 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:15:44,623 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 15:15:44,623 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:15:44,623 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:15:44,624 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:15:44,624 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:15:44,624 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:15:44,624 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:15:44,625 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:15:44,625 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:15:44,625 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:15:44,625 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:15:44,625 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:15:44,626 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:15:44,626 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:15:44,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:15:44,626 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:15:44,626 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:15:44,626 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:15:44,627 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:15:44,627 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_46b2e344-3f0f-4587-afdb-5ad1839d0063/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 -> 3b27cf24a9b45c76034fb9a60cae976f5ca5dfa5338fef373d189f4ae84c7ed4 [2024-11-13 15:15:45,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:15:45,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:15:45,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:15:45,024 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:15:45,024 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:15:45,026 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound50.c Unable to find full path for "g++" [2024-11-13 15:15:46,978 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:15:47,287 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:15:47,292 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound50.c [2024-11-13 15:15:47,305 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/data/392a97551/9f280cff1ff6454d840aadb0c74d1e4f/FLAG06ae2f08e [2024-11-13 15:15:47,327 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/data/392a97551/9f280cff1ff6454d840aadb0c74d1e4f [2024-11-13 15:15:47,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:15:47,333 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:15:47,336 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:15:47,337 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:15:47,343 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:15:47,344 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:15:47" (1/1) ... [2024-11-13 15:15:47,345 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a6e1601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:47, skipping insertion in model container [2024-11-13 15:15:47,347 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:15:47" (1/1) ... [2024-11-13 15:15:47,368 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:15:47,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:15:47,601 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:15:47,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:15:47,637 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:15:47,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:47 WrapperNode [2024-11-13 15:15:47,638 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:15:47,639 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:15:47,639 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:15:47,639 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:15:47,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:47" (1/1) ... [2024-11-13 15:15:47,653 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:47" (1/1) ... [2024-11-13 15:15:47,674 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 101 [2024-11-13 15:15:47,674 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:15:47,675 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:15:47,675 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:15:47,675 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:15:47,685 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:47" (1/1) ... [2024-11-13 15:15:47,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:47" (1/1) ... [2024-11-13 15:15:47,687 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:47" (1/1) ... [2024-11-13 15:15:47,700 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 15:15:47,700 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:47" (1/1) ... [2024-11-13 15:15:47,700 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:47" (1/1) ... [2024-11-13 15:15:47,708 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:47" (1/1) ... [2024-11-13 15:15:47,713 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:47" (1/1) ... [2024-11-13 15:15:47,718 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:47" (1/1) ... [2024-11-13 15:15:47,719 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:47" (1/1) ... [2024-11-13 15:15:47,720 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:15:47,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:15:47,726 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:15:47,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:15:47,727 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:47" (1/1) ... [2024-11-13 15:15:47,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:15:47,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:15:47,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:15:47,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:15:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:15:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 15:15:47,808 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 15:15:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:15:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:15:47,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:15:47,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 15:15:47,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 15:15:47,882 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:15:47,884 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:15:48,648 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-11-13 15:15:48,648 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:15:48,662 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:15:48,662 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:15:48,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:15:48 BoogieIcfgContainer [2024-11-13 15:15:48,663 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:15:48,666 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:15:48,666 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:15:48,671 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:15:48,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:15:47" (1/3) ... [2024-11-13 15:15:48,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e733f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:15:48, skipping insertion in model container [2024-11-13 15:15:48,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:47" (2/3) ... [2024-11-13 15:15:48,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e733f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:15:48, skipping insertion in model container [2024-11-13 15:15:48,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:15:48" (3/3) ... [2024-11-13 15:15:48,675 INFO L112 eAbstractionObserver]: Analyzing ICFG prod4br-ll_valuebound50.c [2024-11-13 15:15:48,696 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:15:48,698 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG prod4br-ll_valuebound50.c that has 3 procedures, 113 locations, 1 initial locations, 1 loop locations, and 42 error locations. [2024-11-13 15:15:48,760 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:15:48,775 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;@2238c737, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:15:48,775 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-11-13 15:15:48,780 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 62 states have (on average 1.8064516129032258) internal successors, (112), 104 states have internal predecessors, (112), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 15:15:48,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 15:15:48,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:48,789 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:48,790 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:15:48,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:48,796 INFO L85 PathProgramCache]: Analyzing trace with hash 530007430, now seen corresponding path program 1 times [2024-11-13 15:15:48,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:48,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356702703] [2024-11-13 15:15:48,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:48,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:48,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:15:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:49,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:15:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:49,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 15:15:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:49,017 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:15:49,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:49,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356702703] [2024-11-13 15:15:49,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356702703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:49,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:49,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:15:49,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341752789] [2024-11-13 15:15:49,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:49,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:15:49,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:49,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:15:49,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:15:49,053 INFO L87 Difference]: Start difference. First operand has 113 states, 62 states have (on average 1.8064516129032258) internal successors, (112), 104 states have internal predecessors, (112), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 15:15:49,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:15:49,079 INFO L93 Difference]: Finished difference Result 222 states and 249 transitions. [2024-11-13 15:15:49,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:15:49,081 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2024-11-13 15:15:49,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:15:49,090 INFO L225 Difference]: With dead ends: 222 [2024-11-13 15:15:49,090 INFO L226 Difference]: Without dead ends: 106 [2024-11-13 15:15:49,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 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 15:15:49,097 INFO L432 NwaCegarLoop]: 119 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, 119 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 15:15:49,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:15:49,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-13 15:15:49,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-11-13 15:15:49,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 57 states have (on average 1.7894736842105263) internal successors, (102), 98 states have internal predecessors, (102), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 15:15:49,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 112 transitions. [2024-11-13 15:15:49,151 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 112 transitions. Word has length 21 [2024-11-13 15:15:49,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:15:49,151 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 112 transitions. [2024-11-13 15:15:49,151 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 15:15:49,156 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 112 transitions. [2024-11-13 15:15:49,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 15:15:49,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:49,158 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:49,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:15:49,158 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:15:49,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:49,159 INFO L85 PathProgramCache]: Analyzing trace with hash -300020793, now seen corresponding path program 1 times [2024-11-13 15:15:49,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:49,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184941367] [2024-11-13 15:15:49,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:49,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:15:49,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1005807837] [2024-11-13 15:15:49,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:49,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:49,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:15:49,223 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:15:49,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:15:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:49,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 15:15:49,345 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:15:49,660 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:15:49,662 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:15:49,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:49,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184941367] [2024-11-13 15:15:49,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:15:49,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005807837] [2024-11-13 15:15:49,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005807837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:49,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:49,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:15:49,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792720000] [2024-11-13 15:15:49,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:49,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:15:49,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:49,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:15:49,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:15:49,671 INFO L87 Difference]: Start difference. First operand 106 states and 112 transitions. Second operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 15:15:50,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:15:50,465 INFO L93 Difference]: Finished difference Result 142 states and 168 transitions. [2024-11-13 15:15:50,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:15:50,467 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 21 [2024-11-13 15:15:50,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:15:50,469 INFO L225 Difference]: With dead ends: 142 [2024-11-13 15:15:50,469 INFO L226 Difference]: Without dead ends: 131 [2024-11-13 15:15:50,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:15:50,474 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 284 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:15:50,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 210 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:15:50,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-13 15:15:50,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 126. [2024-11-13 15:15:50,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 79 states have (on average 1.6455696202531647) internal successors, (130), 116 states have internal predecessors, (130), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 15:15:50,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 144 transitions. [2024-11-13 15:15:50,492 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 144 transitions. Word has length 21 [2024-11-13 15:15:50,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:15:50,494 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 144 transitions. [2024-11-13 15:15:50,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 15:15:50,495 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 144 transitions. [2024-11-13 15:15:50,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-13 15:15:50,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:50,496 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:50,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 15:15:50,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:50,700 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:15:50,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:50,701 INFO L85 PathProgramCache]: Analyzing trace with hash -710709942, now seen corresponding path program 1 times [2024-11-13 15:15:50,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:50,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948963091] [2024-11-13 15:15:50,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:50,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:15:50,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [895579848] [2024-11-13 15:15:50,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:50,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:50,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:15:50,733 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:15:50,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:15:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:50,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-13 15:15:50,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:15:51,061 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:15:51,061 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:15:51,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:51,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948963091] [2024-11-13 15:15:51,062 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:15:51,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895579848] [2024-11-13 15:15:51,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895579848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:51,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:51,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:15:51,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784688794] [2024-11-13 15:15:51,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:51,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:15:51,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:51,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:15:51,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:15:51,065 INFO L87 Difference]: Start difference. First operand 126 states and 144 transitions. Second operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 15:15:51,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:15:51,578 INFO L93 Difference]: Finished difference Result 172 states and 208 transitions. [2024-11-13 15:15:51,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:15:51,579 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 22 [2024-11-13 15:15:51,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:15:51,581 INFO L225 Difference]: With dead ends: 172 [2024-11-13 15:15:51,581 INFO L226 Difference]: Without dead ends: 156 [2024-11-13 15:15:51,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:15:51,583 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 165 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:15:51,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 211 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 15:15:51,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-13 15:15:51,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 153. [2024-11-13 15:15:51,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 105 states have (on average 1.6095238095238096) internal successors, (169), 142 states have internal predecessors, (169), 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 15:15:51,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 185 transitions. [2024-11-13 15:15:51,601 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 185 transitions. Word has length 22 [2024-11-13 15:15:51,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:15:51,601 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 185 transitions. [2024-11-13 15:15:51,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 15:15:51,602 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 185 transitions. [2024-11-13 15:15:51,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-13 15:15:51,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:51,602 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:51,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 15:15:51,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:51,806 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:15:51,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:51,807 INFO L85 PathProgramCache]: Analyzing trace with hash -557171671, now seen corresponding path program 1 times [2024-11-13 15:15:51,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:51,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495445635] [2024-11-13 15:15:51,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:51,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:15:51,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1944970377] [2024-11-13 15:15:51,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:51,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:51,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:15:51,837 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:15:51,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:15:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:51,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-13 15:15:51,912 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:15:52,139 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:15:52,139 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:15:52,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:52,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495445635] [2024-11-13 15:15:52,139 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:15:52,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944970377] [2024-11-13 15:15:52,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944970377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:52,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:52,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:15:52,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210156684] [2024-11-13 15:15:52,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:52,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:15:52,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:52,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:15:52,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:15:52,141 INFO L87 Difference]: Start difference. First operand 153 states and 185 transitions. Second operand has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 15:15:52,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:15:52,592 INFO L93 Difference]: Finished difference Result 161 states and 192 transitions. [2024-11-13 15:15:52,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:15:52,592 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 23 [2024-11-13 15:15:52,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:15:52,594 INFO L225 Difference]: With dead ends: 161 [2024-11-13 15:15:52,594 INFO L226 Difference]: Without dead ends: 160 [2024-11-13 15:15:52,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:15:52,595 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 372 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:15:52,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 236 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 15:15:52,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-13 15:15:52,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 153. [2024-11-13 15:15:52,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 105 states have (on average 1.6) internal successors, (168), 142 states have internal predecessors, (168), 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 15:15:52,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 184 transitions. [2024-11-13 15:15:52,626 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 184 transitions. Word has length 23 [2024-11-13 15:15:52,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:15:52,626 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 184 transitions. [2024-11-13 15:15:52,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 15:15:52,627 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 184 transitions. [2024-11-13 15:15:52,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 15:15:52,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:52,627 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:52,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 15:15:52,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:52,828 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:15:52,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:52,829 INFO L85 PathProgramCache]: Analyzing trace with hash -92452564, now seen corresponding path program 1 times [2024-11-13 15:15:52,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:52,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28658388] [2024-11-13 15:15:52,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:52,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:15:52,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1307661399] [2024-11-13 15:15:52,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:52,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:52,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:15:52,850 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:15:52,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 15:15:52,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:52,917 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 15:15:52,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:15:53,136 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:15:53,136 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:15:53,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:53,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28658388] [2024-11-13 15:15:53,136 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:15:53,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307661399] [2024-11-13 15:15:53,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307661399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:53,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:53,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:15:53,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524031235] [2024-11-13 15:15:53,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:53,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:15:53,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:53,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:15:53,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:15:53,138 INFO L87 Difference]: Start difference. First operand 153 states and 184 transitions. Second operand has 8 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 15:15:53,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:15:53,702 INFO L93 Difference]: Finished difference Result 161 states and 191 transitions. [2024-11-13 15:15:53,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:15:53,702 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 24 [2024-11-13 15:15:53,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:15:53,704 INFO L225 Difference]: With dead ends: 161 [2024-11-13 15:15:53,704 INFO L226 Difference]: Without dead ends: 160 [2024-11-13 15:15:53,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:15:53,708 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 368 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:15:53,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 239 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 15:15:53,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-13 15:15:53,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 153. [2024-11-13 15:15:53,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 105 states have (on average 1.5904761904761904) internal successors, (167), 142 states have internal predecessors, (167), 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 15:15:53,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 183 transitions. [2024-11-13 15:15:53,739 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 183 transitions. Word has length 24 [2024-11-13 15:15:53,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:15:53,739 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 183 transitions. [2024-11-13 15:15:53,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 15:15:53,740 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 183 transitions. [2024-11-13 15:15:53,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-13 15:15:53,740 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:53,740 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:53,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 15:15:53,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:53,942 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:15:53,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:53,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1428937867, now seen corresponding path program 1 times [2024-11-13 15:15:53,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:53,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707441475] [2024-11-13 15:15:53,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:53,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:54,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:15:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:54,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:15:54,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:54,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 15:15:54,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:54,119 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:15:54,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:54,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707441475] [2024-11-13 15:15:54,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707441475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:54,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:54,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:15:54,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778574941] [2024-11-13 15:15:54,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:54,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:15:54,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:54,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:15:54,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:15:54,126 INFO L87 Difference]: Start difference. First operand 153 states and 183 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 15:15:55,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:15:55,571 INFO L93 Difference]: Finished difference Result 246 states and 292 transitions. [2024-11-13 15:15:55,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:15:55,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2024-11-13 15:15:55,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:15:55,574 INFO L225 Difference]: With dead ends: 246 [2024-11-13 15:15:55,574 INFO L226 Difference]: Without dead ends: 245 [2024-11-13 15:15:55,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 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 15:15:55,575 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 93 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:15:55,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 164 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 15:15:55,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-11-13 15:15:55,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 174. [2024-11-13 15:15:55,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 125 states have (on average 1.592) internal successors, (199), 162 states have internal predecessors, (199), 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 15:15:55,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 217 transitions. [2024-11-13 15:15:55,595 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 217 transitions. Word has length 25 [2024-11-13 15:15:55,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:15:55,596 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 217 transitions. [2024-11-13 15:15:55,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 15:15:55,596 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 217 transitions. [2024-11-13 15:15:55,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-13 15:15:55,597 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:55,597 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:55,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:15:55,597 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:15:55,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:55,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1347400974, now seen corresponding path program 1 times [2024-11-13 15:15:55,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:55,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077957976] [2024-11-13 15:15:55,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:55,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:55,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:15:55,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:55,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:15:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:55,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 15:15:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:55,937 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:15:55,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:55,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077957976] [2024-11-13 15:15:55,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077957976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:55,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:55,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:15:55,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438366648] [2024-11-13 15:15:55,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:55,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:15:55,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:55,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:15:55,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:15:55,940 INFO L87 Difference]: Start difference. First operand 174 states and 217 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 15:15:57,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:15:57,406 INFO L93 Difference]: Finished difference Result 246 states and 290 transitions. [2024-11-13 15:15:57,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:15:57,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2024-11-13 15:15:57,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:15:57,408 INFO L225 Difference]: With dead ends: 246 [2024-11-13 15:15:57,408 INFO L226 Difference]: Without dead ends: 245 [2024-11-13 15:15:57,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:15:57,410 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 91 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:15:57,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 150 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 15:15:57,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-11-13 15:15:57,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 174. [2024-11-13 15:15:57,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 125 states have (on average 1.576) internal successors, (197), 162 states have internal predecessors, (197), 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 15:15:57,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 215 transitions. [2024-11-13 15:15:57,435 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 215 transitions. Word has length 26 [2024-11-13 15:15:57,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:15:57,439 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 215 transitions. [2024-11-13 15:15:57,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 15:15:57,439 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 215 transitions. [2024-11-13 15:15:57,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-13 15:15:57,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:57,440 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:15:57,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:15:57,441 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:15:57,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:57,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1491740273, now seen corresponding path program 1 times [2024-11-13 15:15:57,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:57,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888224299] [2024-11-13 15:15:57,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:57,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:15:57,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [873487815] [2024-11-13 15:15:57,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:57,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:57,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:15:57,488 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:15:57,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 15:15:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:57,549 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:15:57,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:15:57,688 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:15:57,689 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:15:57,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:57,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888224299] [2024-11-13 15:15:57,689 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:15:57,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873487815] [2024-11-13 15:15:57,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873487815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:57,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:57,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:15:57,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216331416] [2024-11-13 15:15:57,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:57,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:15:57,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:57,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:15:57,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:15:57,691 INFO L87 Difference]: Start difference. First operand 174 states and 215 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:15:58,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:15:58,363 INFO L93 Difference]: Finished difference Result 184 states and 223 transitions. [2024-11-13 15:15:58,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:15:58,364 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 39 [2024-11-13 15:15:58,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:15:58,365 INFO L225 Difference]: With dead ends: 184 [2024-11-13 15:15:58,365 INFO L226 Difference]: Without dead ends: 181 [2024-11-13 15:15:58,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 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 15:15:58,366 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 150 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:15:58,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 124 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 15:15:58,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-13 15:15:58,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 178. [2024-11-13 15:15:58,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 129 states have (on average 1.550387596899225) internal successors, (200), 166 states have internal predecessors, (200), 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 15:15:58,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 218 transitions. [2024-11-13 15:15:58,382 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 218 transitions. Word has length 39 [2024-11-13 15:15:58,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:15:58,382 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 218 transitions. [2024-11-13 15:15:58,383 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:15:58,383 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 218 transitions. [2024-11-13 15:15:58,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-13 15:15:58,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:58,384 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:15:58,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 15:15:58,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:58,585 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:15:58,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:58,585 INFO L85 PathProgramCache]: Analyzing trace with hash -987300644, now seen corresponding path program 1 times [2024-11-13 15:15:58,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:58,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847928880] [2024-11-13 15:15:58,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:58,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:58,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:15:58,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [692651554] [2024-11-13 15:15:58,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:58,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:58,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:15:58,652 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:15:58,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 15:15:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:58,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:15:58,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:15:58,869 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:15:58,870 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:15:58,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:58,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847928880] [2024-11-13 15:15:58,870 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:15:58,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692651554] [2024-11-13 15:15:58,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692651554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:58,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:58,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:15:58,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250472876] [2024-11-13 15:15:58,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:58,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:15:58,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:58,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:15:58,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:15:58,875 INFO L87 Difference]: Start difference. First operand 178 states and 218 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:15:59,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:15:59,291 INFO L93 Difference]: Finished difference Result 227 states and 286 transitions. [2024-11-13 15:15:59,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:15:59,292 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2024-11-13 15:15:59,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:15:59,293 INFO L225 Difference]: With dead ends: 227 [2024-11-13 15:15:59,294 INFO L226 Difference]: Without dead ends: 221 [2024-11-13 15:15:59,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 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 15:15:59,294 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 145 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:15:59,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 126 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 15:15:59,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-13 15:15:59,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 206. [2024-11-13 15:15:59,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 156 states have (on average 1.5705128205128205) internal successors, (245), 193 states have internal predecessors, (245), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 15:15:59,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 265 transitions. [2024-11-13 15:15:59,309 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 265 transitions. Word has length 40 [2024-11-13 15:15:59,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:15:59,309 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 265 transitions. [2024-11-13 15:15:59,310 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:15:59,310 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 265 transitions. [2024-11-13 15:15:59,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-13 15:15:59,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:59,311 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:15:59,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 15:15:59,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:59,515 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:15:59,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:59,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1000691698, now seen corresponding path program 1 times [2024-11-13 15:15:59,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:59,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700712203] [2024-11-13 15:15:59,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:59,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:15:59,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [447231555] [2024-11-13 15:15:59,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:59,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:59,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:15:59,544 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:15:59,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 15:15:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:59,608 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:15:59,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:15:59,730 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:15:59,730 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:15:59,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:59,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700712203] [2024-11-13 15:15:59,731 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:15:59,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447231555] [2024-11-13 15:15:59,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447231555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:59,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:59,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:15:59,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112916722] [2024-11-13 15:15:59,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:59,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:15:59,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:59,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:15:59,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:15:59,733 INFO L87 Difference]: Start difference. First operand 206 states and 265 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:16:00,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:00,203 INFO L93 Difference]: Finished difference Result 267 states and 357 transitions. [2024-11-13 15:16:00,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:16:00,204 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), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 40 [2024-11-13 15:16:00,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:00,205 INFO L225 Difference]: With dead ends: 267 [2024-11-13 15:16:00,205 INFO L226 Difference]: Without dead ends: 261 [2024-11-13 15:16:00,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 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 15:16:00,207 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 204 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:00,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 86 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 15:16:00,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-13 15:16:00,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 241. [2024-11-13 15:16:00,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 190 states have (on average 1.6210526315789473) internal successors, (308), 227 states have internal predecessors, (308), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 15:16:00,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 330 transitions. [2024-11-13 15:16:00,222 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 330 transitions. Word has length 40 [2024-11-13 15:16:00,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:00,223 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 330 transitions. [2024-11-13 15:16:00,223 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), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:16:00,223 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 330 transitions. [2024-11-13 15:16:00,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-13 15:16:00,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:00,224 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:16:00,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-13 15:16:00,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 15:16:00,425 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:16:00,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:00,426 INFO L85 PathProgramCache]: Analyzing trace with hash -541548780, now seen corresponding path program 1 times [2024-11-13 15:16:00,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:00,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396982865] [2024-11-13 15:16:00,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:00,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:16:00,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1085132807] [2024-11-13 15:16:00,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:00,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:16:00,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:16:00,479 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:16:00,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 15:16:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:00,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:16:00,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:16:00,656 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:16:00,656 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:16:00,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:00,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396982865] [2024-11-13 15:16:00,657 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:16:00,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085132807] [2024-11-13 15:16:00,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085132807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:00,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:00,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:16:00,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105251019] [2024-11-13 15:16:00,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:00,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:16:00,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:00,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:16:00,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:16:00,659 INFO L87 Difference]: Start difference. First operand 241 states and 330 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:16:01,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:01,080 INFO L93 Difference]: Finished difference Result 253 states and 337 transitions. [2024-11-13 15:16:01,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:16:01,080 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2024-11-13 15:16:01,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:01,082 INFO L225 Difference]: With dead ends: 253 [2024-11-13 15:16:01,082 INFO L226 Difference]: Without dead ends: 249 [2024-11-13 15:16:01,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 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 15:16:01,083 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 196 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:01,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 86 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 15:16:01,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-13 15:16:01,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 241. [2024-11-13 15:16:01,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 190 states have (on average 1.5947368421052632) internal successors, (303), 227 states have internal predecessors, (303), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 15:16:01,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 325 transitions. [2024-11-13 15:16:01,097 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 325 transitions. Word has length 41 [2024-11-13 15:16:01,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:01,098 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 325 transitions. [2024-11-13 15:16:01,098 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:16:01,098 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 325 transitions. [2024-11-13 15:16:01,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-13 15:16:01,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:01,099 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:16:01,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-13 15:16:01,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-13 15:16:01,303 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:16:01,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:01,304 INFO L85 PathProgramCache]: Analyzing trace with hash -956671469, now seen corresponding path program 1 times [2024-11-13 15:16:01,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:01,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953640502] [2024-11-13 15:16:01,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:01,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:01,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:16:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:01,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:16:01,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:01,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 15:16:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:01,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 15:16:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:01,418 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:16:01,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:01,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953640502] [2024-11-13 15:16:01,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953640502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:01,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:01,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:16:01,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042425017] [2024-11-13 15:16:01,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:01,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:16:01,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:01,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:16:01,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:16:01,422 INFO L87 Difference]: Start difference. First operand 241 states and 325 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:16:02,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:02,143 INFO L93 Difference]: Finished difference Result 324 states and 417 transitions. [2024-11-13 15:16:02,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:16:02,144 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2024-11-13 15:16:02,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:02,146 INFO L225 Difference]: With dead ends: 324 [2024-11-13 15:16:02,146 INFO L226 Difference]: Without dead ends: 323 [2024-11-13 15:16:02,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 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 15:16:02,147 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 61 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:02,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 238 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:16:02,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-13 15:16:02,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 251. [2024-11-13 15:16:02,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 200 states have (on average 1.59) internal successors, (318), 237 states have internal predecessors, (318), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 15:16:02,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 340 transitions. [2024-11-13 15:16:02,162 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 340 transitions. Word has length 41 [2024-11-13 15:16:02,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:02,163 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 340 transitions. [2024-11-13 15:16:02,163 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:16:02,163 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 340 transitions. [2024-11-13 15:16:02,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-13 15:16:02,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:02,164 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:16:02,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 15:16:02,165 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:16:02,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:02,165 INFO L85 PathProgramCache]: Analyzing trace with hash 806025502, now seen corresponding path program 1 times [2024-11-13 15:16:02,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:02,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437230085] [2024-11-13 15:16:02,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:02,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:02,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:16:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:02,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:16:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:02,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 15:16:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:02,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 15:16:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:02,344 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:16:02,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:02,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437230085] [2024-11-13 15:16:02,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437230085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:02,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:02,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:16:02,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746400605] [2024-11-13 15:16:02,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:02,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:16:02,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:02,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:16:02,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:16:02,347 INFO L87 Difference]: Start difference. First operand 251 states and 340 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:16:03,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:03,094 INFO L93 Difference]: Finished difference Result 353 states and 501 transitions. [2024-11-13 15:16:03,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:16:03,094 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2024-11-13 15:16:03,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:03,096 INFO L225 Difference]: With dead ends: 353 [2024-11-13 15:16:03,096 INFO L226 Difference]: Without dead ends: 351 [2024-11-13 15:16:03,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:16:03,098 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 461 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:03,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 97 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 15:16:03,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-13 15:16:03,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 257. [2024-11-13 15:16:03,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 206 states have (on average 1.5776699029126213) internal successors, (325), 243 states have internal predecessors, (325), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 15:16:03,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 347 transitions. [2024-11-13 15:16:03,116 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 347 transitions. Word has length 42 [2024-11-13 15:16:03,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:03,117 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 347 transitions. [2024-11-13 15:16:03,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:16:03,117 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 347 transitions. [2024-11-13 15:16:03,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-13 15:16:03,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:03,118 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:16:03,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 15:16:03,118 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:16:03,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:03,119 INFO L85 PathProgramCache]: Analyzing trace with hash 391857118, now seen corresponding path program 1 times [2024-11-13 15:16:03,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:03,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029463944] [2024-11-13 15:16:03,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:03,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:03,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:16:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:03,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:16:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:03,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 15:16:03,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:03,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 15:16:03,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:03,218 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:16:03,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:03,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029463944] [2024-11-13 15:16:03,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029463944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:03,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:03,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:16:03,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755629834] [2024-11-13 15:16:03,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:03,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:16:03,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:03,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:16:03,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:16:03,221 INFO L87 Difference]: Start difference. First operand 257 states and 347 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:16:04,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:04,098 INFO L93 Difference]: Finished difference Result 324 states and 413 transitions. [2024-11-13 15:16:04,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:16:04,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2024-11-13 15:16:04,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:04,100 INFO L225 Difference]: With dead ends: 324 [2024-11-13 15:16:04,101 INFO L226 Difference]: Without dead ends: 323 [2024-11-13 15:16:04,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 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 15:16:04,102 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 60 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:04,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 243 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 15:16:04,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-13 15:16:04,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 267. [2024-11-13 15:16:04,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 216 states have (on average 1.5740740740740742) internal successors, (340), 253 states have internal predecessors, (340), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 15:16:04,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 362 transitions. [2024-11-13 15:16:04,119 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 362 transitions. Word has length 42 [2024-11-13 15:16:04,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:04,120 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 362 transitions. [2024-11-13 15:16:04,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:16:04,120 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 362 transitions. [2024-11-13 15:16:04,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-13 15:16:04,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:04,121 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:16:04,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 15:16:04,122 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:16:04,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:04,122 INFO L85 PathProgramCache]: Analyzing trace with hash 407955632, now seen corresponding path program 1 times [2024-11-13 15:16:04,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:04,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769471309] [2024-11-13 15:16:04,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:04,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:04,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:04,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:16:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:04,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:16:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:04,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 15:16:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:04,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 15:16:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:04,264 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:16:04,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:04,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769471309] [2024-11-13 15:16:04,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769471309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:04,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:04,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:16:04,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244004952] [2024-11-13 15:16:04,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:04,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:16:04,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:04,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:16:04,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:16:04,266 INFO L87 Difference]: Start difference. First operand 267 states and 362 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:16:05,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:05,472 INFO L93 Difference]: Finished difference Result 324 states and 411 transitions. [2024-11-13 15:16:05,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:16:05,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2024-11-13 15:16:05,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:05,474 INFO L225 Difference]: With dead ends: 324 [2024-11-13 15:16:05,474 INFO L226 Difference]: Without dead ends: 323 [2024-11-13 15:16:05,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 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 15:16:05,475 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 60 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:05,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 204 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 15:16:05,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-13 15:16:05,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 269. [2024-11-13 15:16:05,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 218 states have (on average 1.5688073394495412) internal successors, (342), 255 states have internal predecessors, (342), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 15:16:05,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 364 transitions. [2024-11-13 15:16:05,491 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 364 transitions. Word has length 42 [2024-11-13 15:16:05,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:05,491 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 364 transitions. [2024-11-13 15:16:05,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:16:05,492 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 364 transitions. [2024-11-13 15:16:05,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-13 15:16:05,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:05,492 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:16:05,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 15:16:05,493 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:16:05,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:05,493 INFO L85 PathProgramCache]: Analyzing trace with hash -783013084, now seen corresponding path program 1 times [2024-11-13 15:16:05,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:05,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49831664] [2024-11-13 15:16:05,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:05,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:05,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:16:05,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:05,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:16:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:05,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 15:16:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:05,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 15:16:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:05,682 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:16:05,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:05,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49831664] [2024-11-13 15:16:05,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49831664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:05,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:05,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:16:05,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311191759] [2024-11-13 15:16:05,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:05,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:16:05,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:05,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:16:05,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:16:05,685 INFO L87 Difference]: Start difference. First operand 269 states and 364 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:16:06,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:06,266 INFO L93 Difference]: Finished difference Result 276 states and 371 transitions. [2024-11-13 15:16:06,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:16:06,266 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 43 [2024-11-13 15:16:06,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:06,268 INFO L225 Difference]: With dead ends: 276 [2024-11-13 15:16:06,268 INFO L226 Difference]: Without dead ends: 274 [2024-11-13 15:16:06,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:16:06,269 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 350 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:06,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 114 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 15:16:06,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-11-13 15:16:06,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 269. [2024-11-13 15:16:06,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 218 states have (on average 1.555045871559633) internal successors, (339), 255 states have internal predecessors, (339), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 15:16:06,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 361 transitions. [2024-11-13 15:16:06,285 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 361 transitions. Word has length 43 [2024-11-13 15:16:06,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:06,285 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 361 transitions. [2024-11-13 15:16:06,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:16:06,286 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 361 transitions. [2024-11-13 15:16:06,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-13 15:16:06,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:06,286 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:16:06,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 15:16:06,287 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:16:06,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:06,287 INFO L85 PathProgramCache]: Analyzing trace with hash -737331114, now seen corresponding path program 1 times [2024-11-13 15:16:06,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:06,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320928861] [2024-11-13 15:16:06,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:06,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:06,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:16:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:06,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:16:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:06,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 15:16:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:06,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 15:16:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:06,427 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:16:06,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:06,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320928861] [2024-11-13 15:16:06,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320928861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:06,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:06,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:16:06,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895053233] [2024-11-13 15:16:06,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:06,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:16:06,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:06,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:16:06,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:16:06,429 INFO L87 Difference]: Start difference. First operand 269 states and 361 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:16:07,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:07,458 INFO L93 Difference]: Finished difference Result 324 states and 405 transitions. [2024-11-13 15:16:07,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:16:07,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2024-11-13 15:16:07,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:07,460 INFO L225 Difference]: With dead ends: 324 [2024-11-13 15:16:07,460 INFO L226 Difference]: Without dead ends: 323 [2024-11-13 15:16:07,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 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 15:16:07,461 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 59 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:07,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 220 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 15:16:07,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-13 15:16:07,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 271. [2024-11-13 15:16:07,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 220 states have (on average 1.55) internal successors, (341), 257 states have internal predecessors, (341), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 15:16:07,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 363 transitions. [2024-11-13 15:16:07,479 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 363 transitions. Word has length 43 [2024-11-13 15:16:07,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:07,479 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 363 transitions. [2024-11-13 15:16:07,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:16:07,479 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 363 transitions. [2024-11-13 15:16:07,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-13 15:16:07,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:07,480 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:16:07,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 15:16:07,481 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:16:07,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:07,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1947476153, now seen corresponding path program 1 times [2024-11-13 15:16:07,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:07,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531309046] [2024-11-13 15:16:07,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:07,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:16:07,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1072520409] [2024-11-13 15:16:07,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:07,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:16:07,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:16:07,533 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:16:07,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 15:16:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:07,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 15:16:07,608 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:16:08,011 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:16:08,011 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:16:14,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:14,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531309046] [2024-11-13 15:16:14,014 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:16:14,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072520409] [2024-11-13 15:16:14,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072520409] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:16:14,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:16:14,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-13 15:16:14,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914430745] [2024-11-13 15:16:14,015 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 15:16:14,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:16:14,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:14,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:16:14,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2024-11-13 15:16:14,018 INFO L87 Difference]: Start difference. First operand 271 states and 363 transitions. Second operand has 11 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 15:16:14,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:14,880 INFO L93 Difference]: Finished difference Result 382 states and 527 transitions. [2024-11-13 15:16:14,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:16:14,881 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 43 [2024-11-13 15:16:14,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:14,883 INFO L225 Difference]: With dead ends: 382 [2024-11-13 15:16:14,883 INFO L226 Difference]: Without dead ends: 357 [2024-11-13 15:16:14,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2024-11-13 15:16:14,884 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 186 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:14,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 240 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:16:14,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-13 15:16:14,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 342. [2024-11-13 15:16:14,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 288 states have (on average 1.5104166666666667) internal successors, (435), 325 states have internal predecessors, (435), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 15:16:14,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 463 transitions. [2024-11-13 15:16:14,904 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 463 transitions. Word has length 43 [2024-11-13 15:16:14,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:14,904 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 463 transitions. [2024-11-13 15:16:14,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 15:16:14,905 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 463 transitions. [2024-11-13 15:16:14,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-13 15:16:14,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:14,905 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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 15:16:14,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-13 15:16:15,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-13 15:16:15,109 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:16:15,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:15,110 INFO L85 PathProgramCache]: Analyzing trace with hash -242218550, now seen corresponding path program 1 times [2024-11-13 15:16:15,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:15,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756335078] [2024-11-13 15:16:15,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:15,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:16:15,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [164765795] [2024-11-13 15:16:15,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:15,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:16:15,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:16:15,134 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:16:15,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 15:16:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:15,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 15:16:15,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:16:16,054 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:16:16,054 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:16:18,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:18,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756335078] [2024-11-13 15:16:18,296 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:16:18,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164765795] [2024-11-13 15:16:18,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164765795] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:16:18,296 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:16:18,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-13 15:16:18,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855118862] [2024-11-13 15:16:18,298 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 15:16:18,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 15:16:18,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:18,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 15:16:18,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-11-13 15:16:18,301 INFO L87 Difference]: Start difference. First operand 342 states and 463 transitions. Second operand has 12 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 15:16:20,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:20,330 INFO L93 Difference]: Finished difference Result 387 states and 516 transitions. [2024-11-13 15:16:20,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 15:16:20,330 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 44 [2024-11-13 15:16:20,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:20,332 INFO L225 Difference]: With dead ends: 387 [2024-11-13 15:16:20,332 INFO L226 Difference]: Without dead ends: 368 [2024-11-13 15:16:20,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=207, Invalid=443, Unknown=0, NotChecked=0, Total=650 [2024-11-13 15:16:20,333 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 399 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:20,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 261 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 15:16:20,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-13 15:16:20,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 288. [2024-11-13 15:16:20,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 238 states have (on average 1.4285714285714286) internal successors, (340), 275 states have internal predecessors, (340), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 15:16:20,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 360 transitions. [2024-11-13 15:16:20,353 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 360 transitions. Word has length 44 [2024-11-13 15:16:20,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:20,354 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 360 transitions. [2024-11-13 15:16:20,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 15:16:20,354 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 360 transitions. [2024-11-13 15:16:20,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-13 15:16:20,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:20,355 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:16:20,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-13 15:16:20,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:16:20,559 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:16:20,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:20,560 INFO L85 PathProgramCache]: Analyzing trace with hash -775269726, now seen corresponding path program 1 times [2024-11-13 15:16:20,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:20,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343043334] [2024-11-13 15:16:20,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:20,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:16:20,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2020043700] [2024-11-13 15:16:20,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:20,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:16:20,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:16:20,599 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:16:20,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 15:16:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:20,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 15:16:20,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:16:20,949 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:16:20,950 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:16:20,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:20,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343043334] [2024-11-13 15:16:20,950 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:16:20,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020043700] [2024-11-13 15:16:20,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020043700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:20,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:20,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:16:20,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058686211] [2024-11-13 15:16:20,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:20,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:16:20,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:20,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:16:20,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:16:20,953 INFO L87 Difference]: Start difference. First operand 288 states and 360 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:16:21,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:21,990 INFO L93 Difference]: Finished difference Result 377 states and 490 transitions. [2024-11-13 15:16:21,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:16:21,991 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 46 [2024-11-13 15:16:21,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:21,992 INFO L225 Difference]: With dead ends: 377 [2024-11-13 15:16:21,993 INFO L226 Difference]: Without dead ends: 369 [2024-11-13 15:16:21,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:16:21,993 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 408 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:21,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 81 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 15:16:21,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-11-13 15:16:22,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 323. [2024-11-13 15:16:22,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 272 states have (on average 1.4375) internal successors, (391), 309 states have internal predecessors, (391), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 15:16:22,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 413 transitions. [2024-11-13 15:16:22,013 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 413 transitions. Word has length 46 [2024-11-13 15:16:22,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:22,013 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 413 transitions. [2024-11-13 15:16:22,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:16:22,014 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 413 transitions. [2024-11-13 15:16:22,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-13 15:16:22,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:22,014 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:16:22,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-13 15:16:22,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:16:22,218 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:16:22,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:22,218 INFO L85 PathProgramCache]: Analyzing trace with hash -843790932, now seen corresponding path program 1 times [2024-11-13 15:16:22,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:22,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025362063] [2024-11-13 15:16:22,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:22,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:16:22,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1999752828] [2024-11-13 15:16:22,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:22,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:16:22,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:16:22,240 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:16:22,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 15:16:22,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:22,313 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-13 15:16:22,315 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:16:23,235 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:16:23,235 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:16:25,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:25,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025362063] [2024-11-13 15:16:25,899 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:16:25,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999752828] [2024-11-13 15:16:25,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999752828] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:16:25,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:16:25,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-13 15:16:25,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272676383] [2024-11-13 15:16:25,901 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 15:16:25,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:16:25,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:25,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:16:25,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2024-11-13 15:16:25,902 INFO L87 Difference]: Start difference. First operand 323 states and 413 transitions. Second operand has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 15:16:28,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:28,111 INFO L93 Difference]: Finished difference Result 367 states and 468 transitions. [2024-11-13 15:16:28,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 15:16:28,111 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 46 [2024-11-13 15:16:28,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:28,113 INFO L225 Difference]: With dead ends: 367 [2024-11-13 15:16:28,113 INFO L226 Difference]: Without dead ends: 366 [2024-11-13 15:16:28,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2024-11-13 15:16:28,113 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 175 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:28,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 273 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 15:16:28,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-13 15:16:28,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 333. [2024-11-13 15:16:28,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 282 states have (on average 1.4184397163120568) internal successors, (400), 319 states have internal predecessors, (400), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 15:16:28,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 422 transitions. [2024-11-13 15:16:28,139 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 422 transitions. Word has length 46 [2024-11-13 15:16:28,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:28,139 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 422 transitions. [2024-11-13 15:16:28,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 15:16:28,140 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 422 transitions. [2024-11-13 15:16:28,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-13 15:16:28,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:28,141 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:16:28,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-13 15:16:28,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:16:28,342 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:16:28,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:28,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1736442408, now seen corresponding path program 1 times [2024-11-13 15:16:28,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:28,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633336899] [2024-11-13 15:16:28,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:28,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:16:28,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1831939774] [2024-11-13 15:16:28,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:28,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:16:28,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:16:28,375 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:16:28,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 15:16:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:28,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 15:16:28,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:16:28,650 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:16:28,650 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:16:28,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:28,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633336899] [2024-11-13 15:16:28,650 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:16:28,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831939774] [2024-11-13 15:16:28,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831939774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:28,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:28,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:16:28,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481086145] [2024-11-13 15:16:28,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:28,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:16:28,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:28,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:16:28,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:16:28,652 INFO L87 Difference]: Start difference. First operand 333 states and 422 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:16:29,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:29,504 INFO L93 Difference]: Finished difference Result 359 states and 455 transitions. [2024-11-13 15:16:29,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:16:29,504 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 47 [2024-11-13 15:16:29,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:29,506 INFO L225 Difference]: With dead ends: 359 [2024-11-13 15:16:29,506 INFO L226 Difference]: Without dead ends: 358 [2024-11-13 15:16:29,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:16:29,509 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 244 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:29,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 108 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 15:16:29,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-11-13 15:16:29,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 333. [2024-11-13 15:16:29,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 282 states have (on average 1.4113475177304964) internal successors, (398), 319 states have internal predecessors, (398), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 15:16:29,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 420 transitions. [2024-11-13 15:16:29,533 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 420 transitions. Word has length 47 [2024-11-13 15:16:29,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:29,533 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 420 transitions. [2024-11-13 15:16:29,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:16:29,533 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 420 transitions. [2024-11-13 15:16:29,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-13 15:16:29,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:29,534 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:16:29,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-13 15:16:29,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:16:29,739 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:16:29,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:29,739 INFO L85 PathProgramCache]: Analyzing trace with hash -2004860060, now seen corresponding path program 1 times [2024-11-13 15:16:29,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:29,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819391184] [2024-11-13 15:16:29,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:29,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:29,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:16:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:29,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:16:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:29,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 15:16:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:29,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 15:16:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:29,857 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:16:29,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:29,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819391184] [2024-11-13 15:16:29,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819391184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:29,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:29,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:16:29,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233121460] [2024-11-13 15:16:29,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:29,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:16:29,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:29,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:16:29,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:16:29,861 INFO L87 Difference]: Start difference. First operand 333 states and 420 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:16:30,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:30,473 INFO L93 Difference]: Finished difference Result 356 states and 440 transitions. [2024-11-13 15:16:30,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:16:30,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 48 [2024-11-13 15:16:30,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:30,476 INFO L225 Difference]: With dead ends: 356 [2024-11-13 15:16:30,477 INFO L226 Difference]: Without dead ends: 355 [2024-11-13 15:16:30,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 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 15:16:30,477 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 31 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:30,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 191 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 15:16:30,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-13 15:16:30,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 344. [2024-11-13 15:16:30,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 293 states have (on average 1.4129692832764504) internal successors, (414), 330 states have internal predecessors, (414), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 15:16:30,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 436 transitions. [2024-11-13 15:16:30,507 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 436 transitions. Word has length 48 [2024-11-13 15:16:30,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:30,507 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 436 transitions. [2024-11-13 15:16:30,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:16:30,508 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 436 transitions. [2024-11-13 15:16:30,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-13 15:16:30,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:30,509 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:16:30,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-13 15:16:30,509 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:16:30,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:30,510 INFO L85 PathProgramCache]: Analyzing trace with hash -272427626, now seen corresponding path program 1 times [2024-11-13 15:16:30,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:30,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74203575] [2024-11-13 15:16:30,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:30,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:16:30,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [656882575] [2024-11-13 15:16:30,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:30,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:16:30,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:16:30,534 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:16:30,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 15:16:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:30,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 15:16:30,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:16:30,854 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:16:30,854 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:16:30,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:30,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74203575] [2024-11-13 15:16:30,854 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:16:30,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656882575] [2024-11-13 15:16:30,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656882575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:30,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:30,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:16:30,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390398310] [2024-11-13 15:16:30,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:30,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:16:30,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:30,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:16:30,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:16:30,856 INFO L87 Difference]: Start difference. First operand 344 states and 436 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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 15:16:31,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:31,511 INFO L93 Difference]: Finished difference Result 376 states and 474 transitions. [2024-11-13 15:16:31,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:16:31,511 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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 48 [2024-11-13 15:16:31,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:31,514 INFO L225 Difference]: With dead ends: 376 [2024-11-13 15:16:31,514 INFO L226 Difference]: Without dead ends: 374 [2024-11-13 15:16:31,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 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 15:16:31,514 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 173 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:31,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 273 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 15:16:31,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-13 15:16:31,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 363. [2024-11-13 15:16:31,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 311 states have (on average 1.4019292604501608) internal successors, (436), 348 states have internal predecessors, (436), 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 15:16:31,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 460 transitions. [2024-11-13 15:16:31,540 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 460 transitions. Word has length 48 [2024-11-13 15:16:31,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:31,540 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 460 transitions. [2024-11-13 15:16:31,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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 15:16:31,541 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 460 transitions. [2024-11-13 15:16:31,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-13 15:16:31,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:31,541 INFO L215 NwaCegarLoop]: trace histogram [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 15:16:31,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-13 15:16:31,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-13 15:16:31,742 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:16:31,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:31,742 INFO L85 PathProgramCache]: Analyzing trace with hash -2021119574, now seen corresponding path program 1 times [2024-11-13 15:16:31,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:31,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626112695] [2024-11-13 15:16:31,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:31,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:31,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:31,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:16:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:31,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:16:31,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:31,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 15:16:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:31,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 15:16:31,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:31,834 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:16:31,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:31,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626112695] [2024-11-13 15:16:31,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626112695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:31,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:31,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:16:31,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573925644] [2024-11-13 15:16:31,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:31,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:16:31,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:31,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:16:31,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:16:31,837 INFO L87 Difference]: Start difference. First operand 363 states and 460 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:16:32,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:32,589 INFO L93 Difference]: Finished difference Result 375 states and 462 transitions. [2024-11-13 15:16:32,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:16:32,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2024-11-13 15:16:32,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:32,590 INFO L225 Difference]: With dead ends: 375 [2024-11-13 15:16:32,590 INFO L226 Difference]: Without dead ends: 374 [2024-11-13 15:16:32,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 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 15:16:32,591 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 29 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:32,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 216 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:16:32,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-13 15:16:32,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 364. [2024-11-13 15:16:32,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 312 states have (on average 1.3974358974358974) internal successors, (436), 349 states have internal predecessors, (436), 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 15:16:32,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 460 transitions. [2024-11-13 15:16:32,618 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 460 transitions. Word has length 49 [2024-11-13 15:16:32,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:32,618 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 460 transitions. [2024-11-13 15:16:32,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:16:32,619 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 460 transitions. [2024-11-13 15:16:32,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-13 15:16:32,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:32,620 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:16:32,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-13 15:16:32,620 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:16:32,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:32,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1209176252, now seen corresponding path program 1 times [2024-11-13 15:16:32,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:32,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44250088] [2024-11-13 15:16:32,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:32,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:16:32,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1485929872] [2024-11-13 15:16:32,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:32,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:16:32,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:16:32,641 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:16:32,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-13 15:16:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:32,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 15:16:32,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:16:32,969 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:16:32,969 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:16:33,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:33,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44250088] [2024-11-13 15:16:33,993 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:16:33,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485929872] [2024-11-13 15:16:33,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485929872] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:16:33,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:16:33,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-13 15:16:33,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680614111] [2024-11-13 15:16:33,994 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 15:16:33,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:16:33,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:33,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:16:33,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:16:33,996 INFO L87 Difference]: Start difference. First operand 364 states and 460 transitions. Second operand has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:16:34,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:34,831 INFO L93 Difference]: Finished difference Result 396 states and 498 transitions. [2024-11-13 15:16:34,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:16:34,832 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 49 [2024-11-13 15:16:34,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:34,833 INFO L225 Difference]: With dead ends: 396 [2024-11-13 15:16:34,833 INFO L226 Difference]: Without dead ends: 394 [2024-11-13 15:16:34,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:16:34,834 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 152 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:34,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 305 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 15:16:34,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-13 15:16:34,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 384. [2024-11-13 15:16:34,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 331 states have (on average 1.3897280966767371) internal successors, (460), 368 states have internal predecessors, (460), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-13 15:16:34,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 486 transitions. [2024-11-13 15:16:34,863 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 486 transitions. Word has length 49 [2024-11-13 15:16:34,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:34,863 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 486 transitions. [2024-11-13 15:16:34,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:16:34,864 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 486 transitions. [2024-11-13 15:16:34,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-13 15:16:34,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:34,865 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:16:34,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-13 15:16:35,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:16:35,066 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:16:35,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:35,067 INFO L85 PathProgramCache]: Analyzing trace with hash 144678243, now seen corresponding path program 1 times [2024-11-13 15:16:35,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:35,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756107307] [2024-11-13 15:16:35,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:35,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:16:35,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1672273250] [2024-11-13 15:16:35,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:35,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:16:35,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:16:35,098 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:16:35,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 15:16:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:35,162 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 15:16:35,163 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:16:35,787 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:16:35,787 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:16:36,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:36,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756107307] [2024-11-13 15:16:36,942 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:16:36,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672273250] [2024-11-13 15:16:36,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672273250] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:16:36,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:16:36,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-13 15:16:36,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077893363] [2024-11-13 15:16:36,942 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 15:16:36,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:16:36,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:36,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:16:36,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-11-13 15:16:36,943 INFO L87 Difference]: Start difference. First operand 384 states and 486 transitions. Second operand has 11 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 15:16:37,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:37,937 INFO L93 Difference]: Finished difference Result 615 states and 778 transitions. [2024-11-13 15:16:37,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 15:16:37,937 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 49 [2024-11-13 15:16:37,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:37,939 INFO L225 Difference]: With dead ends: 615 [2024-11-13 15:16:37,939 INFO L226 Difference]: Without dead ends: 385 [2024-11-13 15:16:37,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:16:37,941 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 292 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:37,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 295 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 15:16:37,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-13 15:16:37,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 378. [2024-11-13 15:16:37,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 325 states have (on average 1.3876923076923078) internal successors, (451), 362 states have internal predecessors, (451), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-13 15:16:37,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 477 transitions. [2024-11-13 15:16:37,965 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 477 transitions. Word has length 49 [2024-11-13 15:16:37,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:37,966 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 477 transitions. [2024-11-13 15:16:37,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 15:16:37,966 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 477 transitions. [2024-11-13 15:16:37,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-13 15:16:37,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:37,966 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:16:37,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-13 15:16:38,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-13 15:16:38,172 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:16:38,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:38,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1170241795, now seen corresponding path program 1 times [2024-11-13 15:16:38,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:38,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12336381] [2024-11-13 15:16:38,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:38,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:38,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:16:38,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [29045909] [2024-11-13 15:16:38,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:38,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:16:38,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:16:38,192 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:16:38,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-13 15:16:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:38,259 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 15:16:38,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:16:38,790 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:16:38,791 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:16:39,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:39,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12336381] [2024-11-13 15:16:39,634 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:16:39,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29045909] [2024-11-13 15:16:39,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29045909] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:16:39,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:16:39,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-13 15:16:39,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421847752] [2024-11-13 15:16:39,634 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 15:16:39,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:16:39,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:39,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:16:39,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-13 15:16:39,635 INFO L87 Difference]: Start difference. First operand 378 states and 477 transitions. Second operand has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 15:16:40,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:40,501 INFO L93 Difference]: Finished difference Result 401 states and 504 transitions. [2024-11-13 15:16:40,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:16:40,501 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 50 [2024-11-13 15:16:40,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:40,502 INFO L225 Difference]: With dead ends: 401 [2024-11-13 15:16:40,502 INFO L226 Difference]: Without dead ends: 400 [2024-11-13 15:16:40,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-13 15:16:40,503 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 145 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:40,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 282 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:16:40,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-13 15:16:40,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 385. [2024-11-13 15:16:40,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 332 states have (on average 1.3795180722891567) internal successors, (458), 369 states have internal predecessors, (458), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-13 15:16:40,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 484 transitions. [2024-11-13 15:16:40,530 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 484 transitions. Word has length 50 [2024-11-13 15:16:40,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:40,531 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 484 transitions. [2024-11-13 15:16:40,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 15:16:40,531 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 484 transitions. [2024-11-13 15:16:40,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 15:16:40,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:40,532 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:16:40,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-13 15:16:40,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:16:40,733 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:16:40,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:40,734 INFO L85 PathProgramCache]: Analyzing trace with hash -970691380, now seen corresponding path program 1 times [2024-11-13 15:16:40,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:40,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587606507] [2024-11-13 15:16:40,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:40,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:16:40,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [422710596] [2024-11-13 15:16:40,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:40,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:16:40,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:16:40,765 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:16:40,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-13 15:16:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:40,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 15:16:40,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:16:41,030 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:16:41,030 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:16:41,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:41,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587606507] [2024-11-13 15:16:41,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:16:41,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422710596] [2024-11-13 15:16:41,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422710596] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:16:41,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:16:41,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-13 15:16:41,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354088323] [2024-11-13 15:16:41,514 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 15:16:41,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:16:41,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:41,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:16:41,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=117, Unknown=1, NotChecked=0, Total=156 [2024-11-13 15:16:41,515 INFO L87 Difference]: Start difference. First operand 385 states and 484 transitions. Second operand has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:16:42,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:42,046 INFO L93 Difference]: Finished difference Result 445 states and 577 transitions. [2024-11-13 15:16:42,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:16:42,046 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 51 [2024-11-13 15:16:42,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:42,048 INFO L225 Difference]: With dead ends: 445 [2024-11-13 15:16:42,048 INFO L226 Difference]: Without dead ends: 435 [2024-11-13 15:16:42,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=171, Unknown=1, NotChecked=0, Total=240 [2024-11-13 15:16:42,049 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 219 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:42,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 101 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 15:16:42,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-11-13 15:16:42,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 368. [2024-11-13 15:16:42,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 325 states have (on average 1.32) internal successors, (429), 352 states have internal predecessors, (429), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-13 15:16:42,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 455 transitions. [2024-11-13 15:16:42,082 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 455 transitions. Word has length 51 [2024-11-13 15:16:42,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:42,083 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 455 transitions. [2024-11-13 15:16:42,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:16:42,083 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 455 transitions. [2024-11-13 15:16:42,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-13 15:16:42,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:42,084 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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 15:16:42,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-13 15:16:42,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:16:42,288 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:16:42,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:42,289 INFO L85 PathProgramCache]: Analyzing trace with hash -26661659, now seen corresponding path program 1 times [2024-11-13 15:16:42,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:42,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254209290] [2024-11-13 15:16:42,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:42,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:16:42,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [684002264] [2024-11-13 15:16:42,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:42,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:16:42,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:16:42,324 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:16:42,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-13 15:16:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:42,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 15:16:42,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:16:42,896 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:16:42,896 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:16:44,576 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:16:44,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:44,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254209290] [2024-11-13 15:16:44,577 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:16:44,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684002264] [2024-11-13 15:16:44,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684002264] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:16:44,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:16:44,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2024-11-13 15:16:44,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518243558] [2024-11-13 15:16:44,578 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:16:44,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 15:16:44,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:44,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 15:16:44,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-13 15:16:44,579 INFO L87 Difference]: Start difference. First operand 368 states and 455 transitions. Second operand has 16 states, 15 states have (on average 4.8) internal successors, (72), 14 states have internal predecessors, (72), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 15:17:02,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:17:02,095 INFO L93 Difference]: Finished difference Result 936 states and 1245 transitions. [2024-11-13 15:17:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-13 15:17:02,095 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.8) internal successors, (72), 14 states have internal predecessors, (72), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 52 [2024-11-13 15:17:02,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:17:02,098 INFO L225 Difference]: With dead ends: 936 [2024-11-13 15:17:02,098 INFO L226 Difference]: Without dead ends: 901 [2024-11-13 15:17:02,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=279, Invalid=776, Unknown=1, NotChecked=0, Total=1056 [2024-11-13 15:17:02,100 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 847 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:17:02,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 159 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2024-11-13 15:17:02,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2024-11-13 15:17:02,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 691. [2024-11-13 15:17:02,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 640 states have (on average 1.3375) internal successors, (856), 666 states have internal predecessors, (856), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 15:17:02,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 900 transitions. [2024-11-13 15:17:02,165 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 900 transitions. Word has length 52 [2024-11-13 15:17:02,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:17:02,165 INFO L471 AbstractCegarLoop]: Abstraction has 691 states and 900 transitions. [2024-11-13 15:17:02,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.8) internal successors, (72), 14 states have internal predecessors, (72), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 15:17:02,165 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 900 transitions. [2024-11-13 15:17:02,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-13 15:17:02,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:17:02,166 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:17:02,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-13 15:17:02,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:17:02,370 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:17:02,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:17:02,370 INFO L85 PathProgramCache]: Analyzing trace with hash -826511378, now seen corresponding path program 1 times [2024-11-13 15:17:02,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:17:02,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480891396] [2024-11-13 15:17:02,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:17:02,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:17:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:17:02,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [626603735] [2024-11-13 15:17:02,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:17:02,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:17:02,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:17:02,398 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:17:02,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-13 15:17:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:17:02,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-13 15:17:02,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:17:02,857 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:17:02,858 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:17:04,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:17:04,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480891396] [2024-11-13 15:17:04,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:17:04,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626603735] [2024-11-13 15:17:04,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626603735] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:17:04,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:17:04,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-13 15:17:04,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414380791] [2024-11-13 15:17:04,547 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 15:17:04,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:17:04,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:17:04,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:17:04,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=117, Unknown=1, NotChecked=0, Total=156 [2024-11-13 15:17:04,547 INFO L87 Difference]: Start difference. First operand 691 states and 900 transitions. Second operand has 9 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:17:05,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:17:05,041 INFO L93 Difference]: Finished difference Result 801 states and 1053 transitions. [2024-11-13 15:17:05,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:17:05,042 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 53 [2024-11-13 15:17:05,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:17:05,045 INFO L225 Difference]: With dead ends: 801 [2024-11-13 15:17:05,046 INFO L226 Difference]: Without dead ends: 796 [2024-11-13 15:17:05,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=171, Unknown=1, NotChecked=0, Total=240 [2024-11-13 15:17:05,047 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 186 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:17:05,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 67 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 15:17:05,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2024-11-13 15:17:05,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 660. [2024-11-13 15:17:05,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 615 states have (on average 1.2975609756097561) internal successors, (798), 636 states have internal predecessors, (798), 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 15:17:05,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 840 transitions. [2024-11-13 15:17:05,101 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 840 transitions. Word has length 53 [2024-11-13 15:17:05,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:17:05,101 INFO L471 AbstractCegarLoop]: Abstraction has 660 states and 840 transitions. [2024-11-13 15:17:05,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:17:05,102 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 840 transitions. [2024-11-13 15:17:05,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-13 15:17:05,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:17:05,103 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:17:05,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-13 15:17:05,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-13 15:17:05,304 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:17:05,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:17:05,304 INFO L85 PathProgramCache]: Analyzing trace with hash 147951111, now seen corresponding path program 1 times [2024-11-13 15:17:05,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:17:05,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261872846] [2024-11-13 15:17:05,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:17:05,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:17:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:17:05,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1678091863] [2024-11-13 15:17:05,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:17:05,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:17:05,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:17:05,323 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:17:05,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-13 15:17:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:17:05,396 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 15:17:05,398 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:17:05,729 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:17:05,729 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:17:10,736 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:17:10,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:17:10,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261872846] [2024-11-13 15:17:10,736 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:17:10,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678091863] [2024-11-13 15:17:10,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678091863] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:17:10,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:17:10,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2024-11-13 15:17:10,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016785812] [2024-11-13 15:17:10,737 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:17:10,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 15:17:10,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:17:10,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 15:17:10,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-13 15:17:10,739 INFO L87 Difference]: Start difference. First operand 660 states and 840 transitions. Second operand has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 14 states have internal predecessors, (76), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 15:17:16,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-13 15:17:23,403 WARN L539 Checker$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 15:17:28,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-13 15:17:42,254 WARN L539 Checker$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 15:17:51,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:17:51,086 INFO L93 Difference]: Finished difference Result 783 states and 993 transitions. [2024-11-13 15:17:51,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 15:17:51,086 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 14 states have internal predecessors, (76), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 54 [2024-11-13 15:17:51,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:17:51,089 INFO L225 Difference]: With dead ends: 783 [2024-11-13 15:17:51,089 INFO L226 Difference]: Without dead ends: 782 [2024-11-13 15:17:51,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=204, Invalid=666, Unknown=0, NotChecked=0, Total=870 [2024-11-13 15:17:51,091 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 412 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 54 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:17:51,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 199 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1144 Invalid, 4 Unknown, 0 Unchecked, 37.7s Time] [2024-11-13 15:17:51,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2024-11-13 15:17:51,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 689. [2024-11-13 15:17:51,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 643 states have (on average 1.2877138413685847) internal successors, (828), 664 states have internal predecessors, (828), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 15:17:51,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 872 transitions. [2024-11-13 15:17:51,142 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 872 transitions. Word has length 54 [2024-11-13 15:17:51,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:17:51,142 INFO L471 AbstractCegarLoop]: Abstraction has 689 states and 872 transitions. [2024-11-13 15:17:51,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 14 states have internal predecessors, (76), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 15:17:51,143 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 872 transitions. [2024-11-13 15:17:51,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-13 15:17:51,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:17:51,143 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:17:51,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-13 15:17:51,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:17:51,345 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:17:51,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:17:51,346 INFO L85 PathProgramCache]: Analyzing trace with hash 291517200, now seen corresponding path program 1 times [2024-11-13 15:17:51,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:17:51,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357029668] [2024-11-13 15:17:51,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:17:51,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:17:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:17:51,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [940327359] [2024-11-13 15:17:51,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:17:51,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:17:51,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:17:51,385 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:17:51,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-13 15:17:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:17:51,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 15:17:51,454 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:17:52,022 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:17:52,023 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:18:10,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:18:10,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357029668] [2024-11-13 15:18:10,226 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:18:10,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940327359] [2024-11-13 15:18:10,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940327359] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:18:10,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:18:10,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-13 15:18:10,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405332410] [2024-11-13 15:18:10,227 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 15:18:10,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:18:10,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:18:10,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:18:10,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=177, Unknown=3, NotChecked=0, Total=240 [2024-11-13 15:18:10,228 INFO L87 Difference]: Start difference. First operand 689 states and 872 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:18:11,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:18:11,336 INFO L93 Difference]: Finished difference Result 761 states and 957 transitions. [2024-11-13 15:18:11,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 15:18:11,337 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 55 [2024-11-13 15:18:11,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:18:11,339 INFO L225 Difference]: With dead ends: 761 [2024-11-13 15:18:11,339 INFO L226 Difference]: Without dead ends: 757 [2024-11-13 15:18:11,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=147, Invalid=312, Unknown=3, NotChecked=0, Total=462 [2024-11-13 15:18:11,341 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 320 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:18:11,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 137 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 15:18:11,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2024-11-13 15:18:11,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 669. [2024-11-13 15:18:11,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 624 states have (on average 1.2612179487179487) internal successors, (787), 645 states have internal predecessors, (787), 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 15:18:11,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 829 transitions. [2024-11-13 15:18:11,379 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 829 transitions. Word has length 55 [2024-11-13 15:18:11,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:18:11,379 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 829 transitions. [2024-11-13 15:18:11,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:18:11,379 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 829 transitions. [2024-11-13 15:18:11,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-13 15:18:11,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:18:11,380 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:18:11,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-13 15:18:11,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:18:11,581 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:18:11,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:18:11,581 INFO L85 PathProgramCache]: Analyzing trace with hash 447098665, now seen corresponding path program 1 times [2024-11-13 15:18:11,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:18:11,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961255289] [2024-11-13 15:18:11,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:11,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:18:11,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:18:11,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1380984357] [2024-11-13 15:18:11,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:11,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:18:11,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:18:11,611 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:18:11,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-13 15:18:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:11,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 15:18:11,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:18:13,592 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:18:13,593 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:18:14,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:18:14,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961255289] [2024-11-13 15:18:14,436 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:18:14,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380984357] [2024-11-13 15:18:14,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380984357] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:18:14,436 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:18:14,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-13 15:18:14,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298433844] [2024-11-13 15:18:14,436 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 15:18:14,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 15:18:14,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:18:14,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 15:18:14,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-13 15:18:14,437 INFO L87 Difference]: Start difference. First operand 669 states and 829 transitions. Second operand has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:18:17,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:18:17,247 INFO L93 Difference]: Finished difference Result 692 states and 856 transitions. [2024-11-13 15:18:17,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 15:18:17,248 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 56 [2024-11-13 15:18:17,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:18:17,250 INFO L225 Difference]: With dead ends: 692 [2024-11-13 15:18:17,251 INFO L226 Difference]: Without dead ends: 691 [2024-11-13 15:18:17,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2024-11-13 15:18:17,251 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 159 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:18:17,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 186 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 15:18:17,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2024-11-13 15:18:17,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 676. [2024-11-13 15:18:17,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 631 states have (on average 1.2583201267828843) internal successors, (794), 652 states have internal predecessors, (794), 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 15:18:17,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 836 transitions. [2024-11-13 15:18:17,318 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 836 transitions. Word has length 56 [2024-11-13 15:18:17,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:18:17,318 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 836 transitions. [2024-11-13 15:18:17,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:18:17,319 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 836 transitions. [2024-11-13 15:18:17,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 15:18:17,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:18:17,320 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:18:17,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-13 15:18:17,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-13 15:18:17,524 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:18:17,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:18:17,525 INFO L85 PathProgramCache]: Analyzing trace with hash -435608434, now seen corresponding path program 1 times [2024-11-13 15:18:17,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:18:17,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648500247] [2024-11-13 15:18:17,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:17,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:18:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:18:17,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [910930014] [2024-11-13 15:18:17,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:17,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:18:17,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:18:17,549 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:18:17,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-13 15:18:17,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:17,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-13 15:18:17,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:18:23,299 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 15:18:23,299 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:18:25,141 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 15:18:25,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:18:25,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648500247] [2024-11-13 15:18:25,141 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:18:25,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910930014] [2024-11-13 15:18:25,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910930014] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:18:25,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:18:25,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 20 [2024-11-13 15:18:25,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110027362] [2024-11-13 15:18:25,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:18:25,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:18:25,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:18:25,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:18:25,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:18:25,143 INFO L87 Difference]: Start difference. First operand 676 states and 836 transitions. Second operand has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:18:28,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:18:28,111 INFO L93 Difference]: Finished difference Result 899 states and 1123 transitions. [2024-11-13 15:18:28,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:18:28,112 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-11-13 15:18:28,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:18:28,116 INFO L225 Difference]: With dead ends: 899 [2024-11-13 15:18:28,116 INFO L226 Difference]: Without dead ends: 898 [2024-11-13 15:18:28,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:18:28,117 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 55 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:18:28,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 226 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-13 15:18:28,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2024-11-13 15:18:28,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 675. [2024-11-13 15:18:28,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 631 states have (on average 1.2472266244057053) internal successors, (787), 651 states have internal predecessors, (787), 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 15:18:28,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 829 transitions. [2024-11-13 15:18:28,167 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 829 transitions. Word has length 62 [2024-11-13 15:18:28,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:18:28,167 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 829 transitions. [2024-11-13 15:18:28,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:18:28,167 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 829 transitions. [2024-11-13 15:18:28,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-13 15:18:28,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:18:28,169 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:18:28,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-13 15:18:28,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-13 15:18:28,373 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:18:28,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:18:28,374 INFO L85 PathProgramCache]: Analyzing trace with hash -203836780, now seen corresponding path program 1 times [2024-11-13 15:18:28,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:18:28,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027751762] [2024-11-13 15:18:28,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:28,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:18:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:18:28,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [387621452] [2024-11-13 15:18:28,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:28,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:18:28,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:18:28,396 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:18:28,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-13 15:18:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:28,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-13 15:18:28,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:18:33,623 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 15:18:33,623 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:18:35,553 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 15:18:35,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:18:35,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027751762] [2024-11-13 15:18:35,553 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:18:35,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387621452] [2024-11-13 15:18:35,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387621452] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:18:35,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:18:35,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17] total 21 [2024-11-13 15:18:35,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617331297] [2024-11-13 15:18:35,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:18:35,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:18:35,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:18:35,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:18:35,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2024-11-13 15:18:35,555 INFO L87 Difference]: Start difference. First operand 675 states and 829 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:18:38,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:18:38,220 INFO L93 Difference]: Finished difference Result 849 states and 1050 transitions. [2024-11-13 15:18:38,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:18:38,220 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 63 [2024-11-13 15:18:38,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:18:38,223 INFO L225 Difference]: With dead ends: 849 [2024-11-13 15:18:38,223 INFO L226 Difference]: Without dead ends: 848 [2024-11-13 15:18:38,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2024-11-13 15:18:38,224 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 37 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:18:38,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 168 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-13 15:18:38,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2024-11-13 15:18:38,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 674. [2024-11-13 15:18:38,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 631 states have (on average 1.236133122028526) internal successors, (780), 650 states have internal predecessors, (780), 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 15:18:38,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 822 transitions. [2024-11-13 15:18:38,268 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 822 transitions. Word has length 63 [2024-11-13 15:18:38,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:18:38,268 INFO L471 AbstractCegarLoop]: Abstraction has 674 states and 822 transitions. [2024-11-13 15:18:38,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:18:38,268 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 822 transitions. [2024-11-13 15:18:38,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-13 15:18:38,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:18:38,269 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:18:38,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-13 15:18:38,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-13 15:18:38,470 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:18:38,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:18:38,470 INFO L85 PathProgramCache]: Analyzing trace with hash -602860955, now seen corresponding path program 1 times [2024-11-13 15:18:38,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:18:38,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176432906] [2024-11-13 15:18:38,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:38,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:18:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:38,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:18:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:38,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:18:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:38,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 15:18:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:38,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 15:18:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:38,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-13 15:18:38,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:38,560 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 15:18:38,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:18:38,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176432906] [2024-11-13 15:18:38,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176432906] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:18:38,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522713090] [2024-11-13 15:18:38,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:38,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:18:38,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:18:38,564 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:18:38,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-13 15:18:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:38,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:18:38,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:18:38,736 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 15:18:38,737 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:18:38,881 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 15:18:38,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522713090] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:18:38,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:18:38,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-13 15:18:38,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829809467] [2024-11-13 15:18:38,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:18:38,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:18:38,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:18:38,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:18:38,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:18:38,884 INFO L87 Difference]: Start difference. First operand 674 states and 822 transitions. Second operand has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 7 states have internal predecessors, (97), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-13 15:18:39,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:18:39,218 INFO L93 Difference]: Finished difference Result 1416 states and 1797 transitions. [2024-11-13 15:18:39,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:18:39,218 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 7 states have internal predecessors, (97), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 63 [2024-11-13 15:18:39,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:18:39,222 INFO L225 Difference]: With dead ends: 1416 [2024-11-13 15:18:39,222 INFO L226 Difference]: Without dead ends: 1415 [2024-11-13 15:18:39,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 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 15:18:39,223 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 211 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:18:39,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 273 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:18:39,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2024-11-13 15:18:39,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1387. [2024-11-13 15:18:39,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1387 states, 1325 states have (on average 1.2837735849056604) internal successors, (1701), 1344 states have internal predecessors, (1701), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 15:18:39,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 1781 transitions. [2024-11-13 15:18:39,317 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 1781 transitions. Word has length 63 [2024-11-13 15:18:39,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:18:39,317 INFO L471 AbstractCegarLoop]: Abstraction has 1387 states and 1781 transitions. [2024-11-13 15:18:39,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 7 states have internal predecessors, (97), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-13 15:18:39,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 1781 transitions. [2024-11-13 15:18:39,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 15:18:39,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:18:39,319 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:18:39,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-13 15:18:39,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-13 15:18:39,521 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:18:39,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:18:39,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1635671716, now seen corresponding path program 1 times [2024-11-13 15:18:39,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:18:39,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713096987] [2024-11-13 15:18:39,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:39,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:18:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:39,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:18:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:39,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:18:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:39,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 15:18:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:39,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 15:18:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:39,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-13 15:18:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:39,971 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 15:18:39,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:18:39,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713096987] [2024-11-13 15:18:39,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713096987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:18:39,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:18:39,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 15:18:39,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019342719] [2024-11-13 15:18:39,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:18:39,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:18:39,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:18:39,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:18:39,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:18:39,974 INFO L87 Difference]: Start difference. First operand 1387 states and 1781 transitions. Second operand has 11 states, 10 states have (on average 4.6) internal successors, (46), 11 states have internal predecessors, (46), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-13 15:18:41,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:18:41,146 INFO L93 Difference]: Finished difference Result 1993 states and 2640 transitions. [2024-11-13 15:18:41,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 15:18:41,149 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.6) internal successors, (46), 11 states have internal predecessors, (46), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 65 [2024-11-13 15:18:41,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:18:41,156 INFO L225 Difference]: With dead ends: 1993 [2024-11-13 15:18:41,156 INFO L226 Difference]: Without dead ends: 1991 [2024-11-13 15:18:41,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-11-13 15:18:41,157 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 298 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:18:41,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 174 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 15:18:41,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2024-11-13 15:18:41,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1887. [2024-11-13 15:18:41,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1887 states, 1810 states have (on average 1.3016574585635359) internal successors, (2356), 1829 states have internal predecessors, (2356), 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 15:18:41,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 2466 transitions. [2024-11-13 15:18:41,317 INFO L78 Accepts]: Start accepts. Automaton has 1887 states and 2466 transitions. Word has length 65 [2024-11-13 15:18:41,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:18:41,317 INFO L471 AbstractCegarLoop]: Abstraction has 1887 states and 2466 transitions. [2024-11-13 15:18:41,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.6) internal successors, (46), 11 states have internal predecessors, (46), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-13 15:18:41,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1887 states and 2466 transitions. [2024-11-13 15:18:41,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 15:18:41,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:18:41,320 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:18:41,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-13 15:18:41,320 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:18:41,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:18:41,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1055589217, now seen corresponding path program 1 times [2024-11-13 15:18:41,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:18:41,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64268897] [2024-11-13 15:18:41,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:41,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:18:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:41,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:18:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:41,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:18:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:41,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 15:18:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:41,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 15:18:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:41,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-13 15:18:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:41,449 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 15:18:41,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:18:41,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64268897] [2024-11-13 15:18:41,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64268897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:18:41,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:18:41,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:18:41,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567221564] [2024-11-13 15:18:41,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:18:41,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:18:41,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:18:41,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:18:41,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:18:41,450 INFO L87 Difference]: Start difference. First operand 1887 states and 2466 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 15:18:41,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:18:41,784 INFO L93 Difference]: Finished difference Result 3639 states and 4842 transitions. [2024-11-13 15:18:41,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:18:41,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 66 [2024-11-13 15:18:41,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:18:41,792 INFO L225 Difference]: With dead ends: 3639 [2024-11-13 15:18:41,792 INFO L226 Difference]: Without dead ends: 2040 [2024-11-13 15:18:41,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 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 15:18:41,795 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 5 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:18:41,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 115 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:18:41,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2040 states. [2024-11-13 15:18:41,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2040 to 2006. [2024-11-13 15:18:41,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2006 states, 1915 states have (on average 1.2971279373368145) internal successors, (2484), 1934 states have internal predecessors, (2484), 69 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-13 15:18:41,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2006 states to 2006 states and 2622 transitions. [2024-11-13 15:18:41,963 INFO L78 Accepts]: Start accepts. Automaton has 2006 states and 2622 transitions. Word has length 66 [2024-11-13 15:18:41,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:18:41,963 INFO L471 AbstractCegarLoop]: Abstraction has 2006 states and 2622 transitions. [2024-11-13 15:18:41,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 15:18:41,963 INFO L276 IsEmpty]: Start isEmpty. Operand 2006 states and 2622 transitions. [2024-11-13 15:18:41,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 15:18:41,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:18:41,964 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:18:41,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-13 15:18:41,965 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:18:41,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:18:41,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1559913633, now seen corresponding path program 1 times [2024-11-13 15:18:41,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:18:41,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152573601] [2024-11-13 15:18:41,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:41,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:18:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:42,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:18:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:42,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:18:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:42,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 15:18:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:42,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 15:18:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:42,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 15:18:42,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:42,152 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 15:18:42,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:18:42,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152573601] [2024-11-13 15:18:42,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152573601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:18:42,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:18:42,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:18:42,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054687255] [2024-11-13 15:18:42,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:18:42,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:18:42,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:18:42,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:18:42,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:18:42,155 INFO L87 Difference]: Start difference. First operand 2006 states and 2622 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 15:18:42,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:18:42,695 INFO L93 Difference]: Finished difference Result 3771 states and 5019 transitions. [2024-11-13 15:18:42,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:18:42,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 66 [2024-11-13 15:18:42,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:18:42,705 INFO L225 Difference]: With dead ends: 3771 [2024-11-13 15:18:42,705 INFO L226 Difference]: Without dead ends: 2158 [2024-11-13 15:18:42,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 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 15:18:42,708 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 10 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:18:42,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 115 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:18:42,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2024-11-13 15:18:42,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 2072. [2024-11-13 15:18:42,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2072 states, 1970 states have (on average 1.3076142131979696) internal successors, (2576), 1989 states have internal predecessors, (2576), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-13 15:18:42,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2072 states to 2072 states and 2736 transitions. [2024-11-13 15:18:42,944 INFO L78 Accepts]: Start accepts. Automaton has 2072 states and 2736 transitions. Word has length 66 [2024-11-13 15:18:42,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:18:42,944 INFO L471 AbstractCegarLoop]: Abstraction has 2072 states and 2736 transitions. [2024-11-13 15:18:42,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 15:18:42,944 INFO L276 IsEmpty]: Start isEmpty. Operand 2072 states and 2736 transitions. [2024-11-13 15:18:42,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 15:18:42,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:18:42,945 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:18:42,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-13 15:18:42,946 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:18:42,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:18:42,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1137418823, now seen corresponding path program 1 times [2024-11-13 15:18:42,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:18:42,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269153878] [2024-11-13 15:18:42,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:42,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:18:42,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:43,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:18:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:43,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:18:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:43,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 15:18:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:43,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 15:18:43,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:43,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-13 15:18:43,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:43,197 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 15:18:43,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:18:43,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269153878] [2024-11-13 15:18:43,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269153878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:18:43,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:18:43,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:18:43,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716442240] [2024-11-13 15:18:43,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:18:43,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:18:43,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:18:43,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:18:43,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:18:43,199 INFO L87 Difference]: Start difference. First operand 2072 states and 2736 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 15:18:43,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:18:43,771 INFO L93 Difference]: Finished difference Result 3875 states and 5163 transitions. [2024-11-13 15:18:43,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:18:43,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 67 [2024-11-13 15:18:43,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:18:43,780 INFO L225 Difference]: With dead ends: 3875 [2024-11-13 15:18:43,780 INFO L226 Difference]: Without dead ends: 2144 [2024-11-13 15:18:43,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 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 15:18:43,784 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 38 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:18:43,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 150 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 15:18:43,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2144 states. [2024-11-13 15:18:44,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2144 to 2045. [2024-11-13 15:18:44,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2045 states, 1944 states have (on average 1.3009259259259258) internal successors, (2529), 1963 states have internal predecessors, (2529), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-13 15:18:44,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2045 states to 2045 states and 2687 transitions. [2024-11-13 15:18:44,038 INFO L78 Accepts]: Start accepts. Automaton has 2045 states and 2687 transitions. Word has length 67 [2024-11-13 15:18:44,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:18:44,038 INFO L471 AbstractCegarLoop]: Abstraction has 2045 states and 2687 transitions. [2024-11-13 15:18:44,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 15:18:44,038 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 2687 transitions. [2024-11-13 15:18:44,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 15:18:44,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:18:44,039 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:18:44,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-13 15:18:44,040 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:18:44,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:18:44,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1823728172, now seen corresponding path program 2 times [2024-11-13 15:18:44,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:18:44,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375133783] [2024-11-13 15:18:44,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:44,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:18:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:18:44,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1814516253] [2024-11-13 15:18:44,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:18:44,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:18:44,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:18:44,083 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:18:44,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-13 15:18:44,256 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 15:18:44,256 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:18:44,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-13 15:18:44,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:18:45,352 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 15:18:45,352 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:19:25,445 WARN L286 SmtUtils]: Spent 31.06s on a formula simplification. DAG size of input: 51 DAG size of output: 51 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:19:45,955 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:19:53,578 WARN L286 SmtUtils]: Spent 6.32s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:20:12,558 WARN L286 SmtUtils]: Spent 10.43s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:20:56,812 WARN L286 SmtUtils]: Spent 19.86s on a formula simplification. DAG size of input: 84 DAG size of output: 79 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:21:08,894 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:21:22,141 WARN L286 SmtUtils]: Spent 10.08s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:21:43,164 WARN L286 SmtUtils]: Spent 7.94s on a formula simplification that was a NOOP. DAG size: 73 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:22:42,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:42,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375133783] [2024-11-13 15:22:42,007 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:22:42,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814516253] [2024-11-13 15:22:42,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814516253] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:22:42,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:22:42,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-13 15:22:42,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305865436] [2024-11-13 15:22:42,008 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 15:22:42,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 15:22:42,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:42,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 15:22:42,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=675, Unknown=8, NotChecked=0, Total=870 [2024-11-13 15:22:42,009 INFO L87 Difference]: Start difference. First operand 2045 states and 2687 transitions. Second operand has 16 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 15:22:43,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:22:43,116 INFO L93 Difference]: Finished difference Result 2046 states and 2687 transitions. [2024-11-13 15:22:43,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 15:22:43,117 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 68 [2024-11-13 15:22:43,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:22:43,123 INFO L225 Difference]: With dead ends: 2046 [2024-11-13 15:22:43,123 INFO L226 Difference]: Without dead ends: 2045 [2024-11-13 15:22:43,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 104.7s TimeCoverageRelationStatistics Valid=370, Invalid=1104, Unknown=8, NotChecked=0, Total=1482 [2024-11-13 15:22:43,126 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 345 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:22:43,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 229 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:22:43,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2024-11-13 15:22:43,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 2045. [2024-11-13 15:22:43,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2045 states, 1944 states have (on average 1.300411522633745) internal successors, (2528), 1963 states have internal predecessors, (2528), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-13 15:22:43,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2045 states to 2045 states and 2686 transitions. [2024-11-13 15:22:43,251 INFO L78 Accepts]: Start accepts. Automaton has 2045 states and 2686 transitions. Word has length 68 [2024-11-13 15:22:43,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:22:43,251 INFO L471 AbstractCegarLoop]: Abstraction has 2045 states and 2686 transitions. [2024-11-13 15:22:43,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 15:22:43,251 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 2686 transitions. [2024-11-13 15:22:43,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 15:22:43,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:22:43,252 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:22:43,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-13 15:22:43,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-13 15:22:43,456 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:22:43,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:43,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1469811288, now seen corresponding path program 1 times [2024-11-13 15:22:43,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:43,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354030381] [2024-11-13 15:22:43,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:43,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:22:43,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1571320502] [2024-11-13 15:22:43,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:43,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:22:43,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:22:43,477 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:22:43,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-13 15:22:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:43,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-13 15:22:43,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:22:44,534 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 15:22:44,535 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:22:59,813 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 15:22:59,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:59,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354030381] [2024-11-13 15:22:59,814 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:22:59,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571320502] [2024-11-13 15:22:59,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571320502] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:22:59,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:22:59,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2024-11-13 15:22:59,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489595664] [2024-11-13 15:22:59,815 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:22:59,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-13 15:22:59,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:59,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-13 15:22:59,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=484, Unknown=2, NotChecked=0, Total=600 [2024-11-13 15:22:59,816 INFO L87 Difference]: Start difference. First operand 2045 states and 2686 transitions. Second operand has 25 states, 22 states have (on average 4.2727272727272725) internal successors, (94), 21 states have internal predecessors, (94), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-13 15:23:34,204 WARN L286 SmtUtils]: Spent 33.68s on a formula simplification. DAG size of input: 61 DAG size of output: 45 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:23:43,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:23:47,101 WARN L539 Checker$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 15:23:51,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:24:28,711 WARN L286 SmtUtils]: Spent 20.54s on a formula simplification. DAG size of input: 53 DAG size of output: 35 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:24:45,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:25:04,329 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 15:25:04,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:25:04,597 INFO L93 Difference]: Finished difference Result 3069 states and 4076 transitions. [2024-11-13 15:25:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-13 15:25:04,598 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 22 states have (on average 4.2727272727272725) internal successors, (94), 21 states have internal predecessors, (94), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) Word has length 69 [2024-11-13 15:25:04,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:25:04,611 INFO L225 Difference]: With dead ends: 3069 [2024-11-13 15:25:04,611 INFO L226 Difference]: Without dead ends: 3062 [2024-11-13 15:25:04,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 97.4s TimeCoverageRelationStatistics Valid=685, Invalid=1857, Unknown=8, NotChecked=0, Total=2550 [2024-11-13 15:25:04,614 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 659 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 2025 mSolverCounterSat, 103 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 2132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 2025 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:25:04,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 253 Invalid, 2132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 2025 Invalid, 4 Unknown, 0 Unchecked, 39.2s Time] [2024-11-13 15:25:04,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3062 states. [2024-11-13 15:25:04,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3062 to 2267. [2024-11-13 15:25:04,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2267 states, 2158 states have (on average 1.2961075069508805) internal successors, (2797), 2177 states have internal predecessors, (2797), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-13 15:25:04,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2267 states to 2267 states and 2971 transitions. [2024-11-13 15:25:04,917 INFO L78 Accepts]: Start accepts. Automaton has 2267 states and 2971 transitions. Word has length 69 [2024-11-13 15:25:04,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:25:04,918 INFO L471 AbstractCegarLoop]: Abstraction has 2267 states and 2971 transitions. [2024-11-13 15:25:04,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 22 states have (on average 4.2727272727272725) internal successors, (94), 21 states have internal predecessors, (94), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-13 15:25:04,918 INFO L276 IsEmpty]: Start isEmpty. Operand 2267 states and 2971 transitions. [2024-11-13 15:25:04,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-13 15:25:04,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:25:04,920 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:04,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-13 15:25:05,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-13 15:25:05,124 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:25:05,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:05,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1552154922, now seen corresponding path program 1 times [2024-11-13 15:25:05,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:05,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546718802] [2024-11-13 15:25:05,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:05,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:25:05,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1214396536] [2024-11-13 15:25:05,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:05,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:25:05,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:25:05,144 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:25:05,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-13 15:25:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:05,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 15:25:05,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:25:05,559 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 15:25:05,560 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:25:06,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:06,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546718802] [2024-11-13 15:25:06,130 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:25:06,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214396536] [2024-11-13 15:25:06,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214396536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:25:06,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:25:06,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-13 15:25:06,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027402975] [2024-11-13 15:25:06,130 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 15:25:06,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:25:06,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:06,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:25:06,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:25:06,132 INFO L87 Difference]: Start difference. First operand 2267 states and 2971 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 15:25:07,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:25:07,811 INFO L93 Difference]: Finished difference Result 2443 states and 3197 transitions. [2024-11-13 15:25:07,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:25:07,813 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 70 [2024-11-13 15:25:07,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:25:07,830 INFO L225 Difference]: With dead ends: 2443 [2024-11-13 15:25:07,834 INFO L226 Difference]: Without dead ends: 2442 [2024-11-13 15:25:07,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-13 15:25:07,837 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 182 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:25:07,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 266 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 15:25:07,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2024-11-13 15:25:08,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2327. [2024-11-13 15:25:08,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2215 states have (on average 1.29255079006772) internal successors, (2863), 2234 states have internal predecessors, (2863), 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 15:25:08,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3043 transitions. [2024-11-13 15:25:08,130 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3043 transitions. Word has length 70 [2024-11-13 15:25:08,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:25:08,132 INFO L471 AbstractCegarLoop]: Abstraction has 2327 states and 3043 transitions. [2024-11-13 15:25:08,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 15:25:08,133 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3043 transitions. [2024-11-13 15:25:08,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-13 15:25:08,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:25:08,134 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:08,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-13 15:25:08,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:25:08,335 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:25:08,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:08,336 INFO L85 PathProgramCache]: Analyzing trace with hash -882044394, now seen corresponding path program 2 times [2024-11-13 15:25:08,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:08,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204598104] [2024-11-13 15:25:08,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:08,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:25:08,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1650244056] [2024-11-13 15:25:08,363 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:25:08,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:25:08,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:25:08,366 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:25:08,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-13 15:25:08,440 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 15:25:08,441 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:25:08,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 15:25:08,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:25:09,256 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 15:25:09,256 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:25:10,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:10,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204598104] [2024-11-13 15:25:10,853 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:25:10,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650244056] [2024-11-13 15:25:10,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650244056] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:25:10,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:25:10,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-13 15:25:10,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879209304] [2024-11-13 15:25:10,853 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 15:25:10,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:25:10,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:10,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:25:10,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-13 15:25:10,854 INFO L87 Difference]: Start difference. First operand 2327 states and 3043 transitions. Second operand has 11 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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 15:25:13,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:25:13,351 INFO L93 Difference]: Finished difference Result 2937 states and 3842 transitions. [2024-11-13 15:25:13,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:25:13,352 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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 70 [2024-11-13 15:25:13,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:25:13,363 INFO L225 Difference]: With dead ends: 2937 [2024-11-13 15:25:13,364 INFO L226 Difference]: Without dead ends: 2935 [2024-11-13 15:25:13,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=175, Invalid=377, Unknown=0, NotChecked=0, Total=552 [2024-11-13 15:25:13,366 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 242 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:25:13,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 267 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 15:25:13,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2935 states. [2024-11-13 15:25:13,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2935 to 2605. [2024-11-13 15:25:13,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2605 states, 2479 states have (on average 1.2888261395724083) internal successors, (3195), 2498 states have internal predecessors, (3195), 104 states have call successors, (104), 2 states have call predecessors, (104), 2 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-13 15:25:13,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 3403 transitions. [2024-11-13 15:25:13,590 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 3403 transitions. Word has length 70 [2024-11-13 15:25:13,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:25:13,591 INFO L471 AbstractCegarLoop]: Abstraction has 2605 states and 3403 transitions. [2024-11-13 15:25:13,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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 15:25:13,591 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 3403 transitions. [2024-11-13 15:25:13,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-13 15:25:13,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:25:13,592 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:13,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-13 15:25:13,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:25:13,796 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:25:13,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:13,797 INFO L85 PathProgramCache]: Analyzing trace with hash 512358780, now seen corresponding path program 1 times [2024-11-13 15:25:13,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:13,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255848858] [2024-11-13 15:25:13,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:13,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:25:13,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1030164218] [2024-11-13 15:25:13,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:13,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:25:13,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:25:13,833 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:25:13,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-13 15:25:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:13,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 15:25:13,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:25:14,235 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 15:25:14,236 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:25:14,649 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 15:25:14,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:14,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255848858] [2024-11-13 15:25:14,649 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:25:14,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030164218] [2024-11-13 15:25:14,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030164218] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:25:14,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:25:14,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-11-13 15:25:14,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304956927] [2024-11-13 15:25:14,650 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:25:14,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 15:25:14,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:14,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 15:25:14,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-13 15:25:14,651 INFO L87 Difference]: Start difference. First operand 2605 states and 3403 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-13 15:25:18,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:25:18,155 INFO L93 Difference]: Finished difference Result 2912 states and 3796 transitions. [2024-11-13 15:25:18,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 15:25:18,156 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) Word has length 71 [2024-11-13 15:25:18,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:25:18,162 INFO L225 Difference]: With dead ends: 2912 [2024-11-13 15:25:18,162 INFO L226 Difference]: Without dead ends: 2910 [2024-11-13 15:25:18,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 129 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2024-11-13 15:25:18,164 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 390 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:25:18,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 161 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-13 15:25:18,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2910 states. [2024-11-13 15:25:18,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2910 to 2707. [2024-11-13 15:25:18,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2707 states, 2576 states have (on average 1.2826086956521738) internal successors, (3304), 2595 states have internal predecessors, (3304), 109 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2024-11-13 15:25:18,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2707 states to 2707 states and 3522 transitions. [2024-11-13 15:25:18,370 INFO L78 Accepts]: Start accepts. Automaton has 2707 states and 3522 transitions. Word has length 71 [2024-11-13 15:25:18,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:25:18,370 INFO L471 AbstractCegarLoop]: Abstraction has 2707 states and 3522 transitions. [2024-11-13 15:25:18,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-13 15:25:18,370 INFO L276 IsEmpty]: Start isEmpty. Operand 2707 states and 3522 transitions. [2024-11-13 15:25:18,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-13 15:25:18,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:25:18,371 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:25:18,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-13 15:25:18,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:25:18,572 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 15:25:18,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:18,572 INFO L85 PathProgramCache]: Analyzing trace with hash -872162269, now seen corresponding path program 1 times [2024-11-13 15:25:18,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:18,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933261715] [2024-11-13 15:25:18,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:18,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:25:18,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1481889940] [2024-11-13 15:25:18,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:18,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:25:18,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:25:18,597 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:25:18,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b2e344-3f0f-4587-afdb-5ad1839d0063/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-13 15:25:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:18,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-13 15:25:18,665 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:25:20,318 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 15:25:20,319 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:26:17,036 WARN L286 SmtUtils]: Spent 5.84s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:26:28,613 WARN L286 SmtUtils]: Spent 5.64s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:26:43,665 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 26 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-13 15:26:43,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:43,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933261715] [2024-11-13 15:26:43,666 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:26:43,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481889940] [2024-11-13 15:26:43,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481889940] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:26:43,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:26:43,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-13 15:26:43,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206627436] [2024-11-13 15:26:43,666 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:26:43,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-13 15:26:43,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:43,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-13 15:26:43,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2024-11-13 15:26:43,667 INFO L87 Difference]: Start difference. First operand 2707 states and 3522 transitions. Second operand has 27 states, 26 states have (on average 3.8461538461538463) internal successors, (100), 27 states have internal predecessors, (100), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7)