./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench/sqrt1-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/sqrt1-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU --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 5a667cf640b9cf5657756f4ca44157e13471ed71aebfaf7ff11f9d5251db37ae --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:59:57,963 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:58,061 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 21:59:58,067 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:58,068 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:58,109 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:58,110 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:58,110 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:58,111 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:59:58,112 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:59:58,113 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:59:58,114 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:59:58,115 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:58,116 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:58,116 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:58,116 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:58,120 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:59:58,120 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:59:58,121 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:59:58,121 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:59:58,121 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:58,125 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:59:58,125 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:59:58,125 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:59:58,126 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:58,126 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 21:59:58,126 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:59:58,127 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:59:58,127 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:59:58,127 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:58,127 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:58,128 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:58,129 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:59:58,130 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:59:58,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:58,131 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:58,132 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:59:58,132 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:59:58,132 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:59:58,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:59:58,133 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:59:58,134 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:59:58,134 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:59:58,134 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:59:58,135 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a667cf640b9cf5657756f4ca44157e13471ed71aebfaf7ff11f9d5251db37ae [2024-10-31 21:59:58,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:58,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:58,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:58,466 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:58,466 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:58,467 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/nla-digbench/sqrt1-ll.c Unable to find full path for "g++" [2024-10-31 22:00:00,805 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:00:00,985 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:00:00,986 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/sv-benchmarks/c/nla-digbench/sqrt1-ll.c [2024-10-31 22:00:00,995 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/data/03b9078d9/f84e01839d4b45d3a6738a482722ebec/FLAGd7d9f8507 [2024-10-31 22:00:01,013 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/data/03b9078d9/f84e01839d4b45d3a6738a482722ebec [2024-10-31 22:00:01,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:00:01,018 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:00:01,019 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:01,020 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:00:01,027 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:00:01,028 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:01" (1/1) ... [2024-10-31 22:00:01,029 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63fc11f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:01, skipping insertion in model container [2024-10-31 22:00:01,030 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:01" (1/1) ... [2024-10-31 22:00:01,053 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:00:01,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:01,275 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:00:01,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:01,315 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:00:01,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:01 WrapperNode [2024-10-31 22:00:01,316 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:01,317 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:01,317 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:00:01,317 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:00:01,327 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:01" (1/1) ... [2024-10-31 22:00:01,334 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:01" (1/1) ... [2024-10-31 22:00:01,363 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 93 [2024-10-31 22:00:01,366 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:01,367 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:00:01,367 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:00:01,367 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:00:01,378 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:01" (1/1) ... [2024-10-31 22:00:01,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:01" (1/1) ... [2024-10-31 22:00:01,380 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:01" (1/1) ... [2024-10-31 22:00:01,394 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]. [2024-10-31 22:00:01,394 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:01" (1/1) ... [2024-10-31 22:00:01,394 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:01" (1/1) ... [2024-10-31 22:00:01,397 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:01" (1/1) ... [2024-10-31 22:00:01,401 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:01" (1/1) ... [2024-10-31 22:00:01,402 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:01" (1/1) ... [2024-10-31 22:00:01,403 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:01" (1/1) ... [2024-10-31 22:00:01,405 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:00:01,410 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:00:01,410 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:00:01,410 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:00:01,411 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:01" (1/1) ... [2024-10-31 22:00:01,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:00:01,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:01,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:01,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:00:01,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:00:01,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:00:01,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:00:01,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:00:01,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-31 22:00:01,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-31 22:00:01,537 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:00:01,539 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:00:01,982 INFO L? ?]: Removed 65 outVars from TransFormulas that were not future-live. [2024-10-31 22:00:01,982 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:00:02,007 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:00:02,007 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:00:02,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:02 BoogieIcfgContainer [2024-10-31 22:00:02,008 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:00:02,011 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:00:02,011 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:00:02,015 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:00:02,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:00:01" (1/3) ... [2024-10-31 22:00:02,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f35b711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:00:02, skipping insertion in model container [2024-10-31 22:00:02,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:01" (2/3) ... [2024-10-31 22:00:02,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f35b711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:00:02, skipping insertion in model container [2024-10-31 22:00:02,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:02" (3/3) ... [2024-10-31 22:00:02,019 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt1-ll.c [2024-10-31 22:00:02,043 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:00:02,043 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2024-10-31 22:00:02,131 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:00:02,141 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;@55823881, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:00:02,142 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-10-31 22:00:02,167 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 62 states have (on average 1.8709677419354838) internal successors, (116), 112 states have internal predecessors, (116), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 22:00:02,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-31 22:00:02,175 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:02,175 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-31 22:00:02,177 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-31 22:00:02,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:02,185 INFO L85 PathProgramCache]: Analyzing trace with hash 925801, now seen corresponding path program 1 times [2024-10-31 22:00:02,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:02,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154711623] [2024-10-31 22:00:02,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:02,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:02,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:02,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154711623] [2024-10-31 22:00:02,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154711623] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:02,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:02,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:02,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341256813] [2024-10-31 22:00:02,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:02,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:00:02,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:02,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:00:02,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:00:02,418 INFO L87 Difference]: Start difference. First operand has 120 states, 62 states have (on average 1.8709677419354838) internal successors, (116), 112 states have internal predecessors, (116), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:02,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:02,467 INFO L93 Difference]: Finished difference Result 233 states and 259 transitions. [2024-10-31 22:00:02,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:00:02,470 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-10-31 22:00:02,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:02,481 INFO L225 Difference]: With dead ends: 233 [2024-10-31 22:00:02,481 INFO L226 Difference]: Without dead ends: 109 [2024-10-31 22:00:02,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:00:02,489 INFO L432 NwaCegarLoop]: 120 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, 120 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 [2024-10-31 22:00:02,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:00:02,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-10-31 22:00:02,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-10-31 22:00:02,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 57 states have (on average 1.8070175438596492) internal successors, (103), 102 states have internal predecessors, (103), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-31 22:00:02,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 113 transitions. [2024-10-31 22:00:02,538 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 113 transitions. Word has length 4 [2024-10-31 22:00:02,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:02,538 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 113 transitions. [2024-10-31 22:00:02,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:02,539 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 113 transitions. [2024-10-31 22:00:02,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-31 22:00:02,540 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:02,540 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-31 22:00:02,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:00:02,541 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-31 22:00:02,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:02,542 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2024-10-31 22:00:02,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:02,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720172258] [2024-10-31 22:00:02,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:02,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:02,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:02,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720172258] [2024-10-31 22:00:02,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720172258] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:02,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:02,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:02,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768902982] [2024-10-31 22:00:02,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:02,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:02,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:02,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:02,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:02,604 INFO L87 Difference]: Start difference. First operand 109 states and 113 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:02,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:02,768 INFO L93 Difference]: Finished difference Result 204 states and 213 transitions. [2024-10-31 22:00:02,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:02,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-10-31 22:00:02,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:02,771 INFO L225 Difference]: With dead ends: 204 [2024-10-31 22:00:02,771 INFO L226 Difference]: Without dead ends: 184 [2024-10-31 22:00:02,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:02,773 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 68 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:02,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 161 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:00:02,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-10-31 22:00:02,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 149. [2024-10-31 22:00:02,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 93 states have (on average 1.6236559139784945) internal successors, (151), 138 states have internal predecessors, (151), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-31 22:00:02,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 169 transitions. [2024-10-31 22:00:02,797 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 169 transitions. Word has length 4 [2024-10-31 22:00:02,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:02,797 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 169 transitions. [2024-10-31 22:00:02,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:02,798 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 169 transitions. [2024-10-31 22:00:02,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-31 22:00:02,799 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:02,799 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:02,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:00:02,799 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-31 22:00:02,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:02,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1780895061, now seen corresponding path program 1 times [2024-10-31 22:00:02,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:02,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796712649] [2024-10-31 22:00:02,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:02,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:02,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:00:02,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1270764013] [2024-10-31 22:00:02,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:02,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:02,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:02,872 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:02,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:00:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:00:02,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:03,023 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:00:03,023 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:00:03,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:03,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796712649] [2024-10-31 22:00:03,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:00:03,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270764013] [2024-10-31 22:00:03,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270764013] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:03,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:03,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:03,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515390159] [2024-10-31 22:00:03,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:03,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:03,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:03,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:03,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:03,032 INFO L87 Difference]: Start difference. First operand 149 states and 169 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:00:03,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:03,234 INFO L93 Difference]: Finished difference Result 176 states and 197 transitions. [2024-10-31 22:00:03,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:03,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2024-10-31 22:00:03,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:03,237 INFO L225 Difference]: With dead ends: 176 [2024-10-31 22:00:03,237 INFO L226 Difference]: Without dead ends: 168 [2024-10-31 22:00:03,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:03,243 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 41 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:03,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 147 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:00:03,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-10-31 22:00:03,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 160. [2024-10-31 22:00:03,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 103 states have (on average 1.5728155339805825) internal successors, (162), 148 states have internal predecessors, (162), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 22:00:03,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 182 transitions. [2024-10-31 22:00:03,275 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 182 transitions. Word has length 25 [2024-10-31 22:00:03,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:03,276 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 182 transitions. [2024-10-31 22:00:03,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:00:03,276 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 182 transitions. [2024-10-31 22:00:03,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-31 22:00:03,277 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:03,278 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:03,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:00:03,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:03,483 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-31 22:00:03,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:03,484 INFO L85 PathProgramCache]: Analyzing trace with hash 626828026, now seen corresponding path program 1 times [2024-10-31 22:00:03,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:03,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931140279] [2024-10-31 22:00:03,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:03,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:03,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:03,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:00:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:03,693 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:00:03,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:03,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931140279] [2024-10-31 22:00:03,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931140279] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:03,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:03,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:03,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849856032] [2024-10-31 22:00:03,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:03,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:03,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:03,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:03,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:03,697 INFO L87 Difference]: Start difference. First operand 160 states and 182 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:00:03,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:03,860 INFO L93 Difference]: Finished difference Result 176 states and 193 transitions. [2024-10-31 22:00:03,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:03,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2024-10-31 22:00:03,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:03,863 INFO L225 Difference]: With dead ends: 176 [2024-10-31 22:00:03,863 INFO L226 Difference]: Without dead ends: 166 [2024-10-31 22:00:03,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:03,865 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 38 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:03,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 161 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:00:03,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-10-31 22:00:03,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 163. [2024-10-31 22:00:03,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 106 states have (on average 1.490566037735849) internal successors, (158), 151 states have internal predecessors, (158), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 22:00:03,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 178 transitions. [2024-10-31 22:00:03,888 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 178 transitions. Word has length 26 [2024-10-31 22:00:03,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:03,889 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 178 transitions. [2024-10-31 22:00:03,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:00:03,890 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 178 transitions. [2024-10-31 22:00:03,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-31 22:00:03,891 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:03,891 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:03,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:00:03,892 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-31 22:00:03,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:03,893 INFO L85 PathProgramCache]: Analyzing trace with hash -684009873, now seen corresponding path program 1 times [2024-10-31 22:00:03,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:03,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910343476] [2024-10-31 22:00:03,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:03,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:03,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:00:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,122 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:00:04,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:04,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910343476] [2024-10-31 22:00:04,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910343476] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:04,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:04,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:00:04,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441154496] [2024-10-31 22:00:04,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:04,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:00:04,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:04,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:00:04,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:00:04,131 INFO L87 Difference]: Start difference. First operand 163 states and 178 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:00:04,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:04,301 INFO L93 Difference]: Finished difference Result 168 states and 183 transitions. [2024-10-31 22:00:04,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:00:04,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2024-10-31 22:00:04,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:04,305 INFO L225 Difference]: With dead ends: 168 [2024-10-31 22:00:04,306 INFO L226 Difference]: Without dead ends: 166 [2024-10-31 22:00:04,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:00:04,307 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 80 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:04,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 153 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:00:04,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-10-31 22:00:04,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 163. [2024-10-31 22:00:04,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 106 states have (on average 1.471698113207547) internal successors, (156), 151 states have internal predecessors, (156), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 22:00:04,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 176 transitions. [2024-10-31 22:00:04,336 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 176 transitions. Word has length 29 [2024-10-31 22:00:04,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:04,337 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 176 transitions. [2024-10-31 22:00:04,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:00:04,338 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 176 transitions. [2024-10-31 22:00:04,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-31 22:00:04,338 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:04,339 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:04,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:00:04,339 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-31 22:00:04,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:04,343 INFO L85 PathProgramCache]: Analyzing trace with hash 2015377971, now seen corresponding path program 1 times [2024-10-31 22:00:04,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:04,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094541740] [2024-10-31 22:00:04,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:04,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:00:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,554 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:00:04,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:04,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094541740] [2024-10-31 22:00:04,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094541740] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:04,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:04,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:04,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933947834] [2024-10-31 22:00:04,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:04,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:04,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:04,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:04,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:04,560 INFO L87 Difference]: Start difference. First operand 163 states and 176 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:00:04,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:04,727 INFO L93 Difference]: Finished difference Result 168 states and 177 transitions. [2024-10-31 22:00:04,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:04,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2024-10-31 22:00:04,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:04,729 INFO L225 Difference]: With dead ends: 168 [2024-10-31 22:00:04,729 INFO L226 Difference]: Without dead ends: 140 [2024-10-31 22:00:04,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:04,731 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 29 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:04,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 143 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:00:04,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-10-31 22:00:04,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2024-10-31 22:00:04,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 85 states have (on average 1.5411764705882354) internal successors, (131), 130 states have internal predecessors, (131), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-31 22:00:04,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 147 transitions. [2024-10-31 22:00:04,751 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 147 transitions. Word has length 33 [2024-10-31 22:00:04,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:04,752 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 147 transitions. [2024-10-31 22:00:04,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:00:04,752 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 147 transitions. [2024-10-31 22:00:04,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-31 22:00:04,753 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:04,754 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] [2024-10-31 22:00:04,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:00:04,754 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-31 22:00:04,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:04,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1352622160, now seen corresponding path program 1 times [2024-10-31 22:00:04,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:04,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278188091] [2024-10-31 22:00:04,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:04,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:00:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:00:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,941 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:00:04,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:04,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278188091] [2024-10-31 22:00:04,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278188091] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:04,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:04,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:00:04,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338183043] [2024-10-31 22:00:04,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:04,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:00:04,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:04,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:00:04,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:00:04,947 INFO L87 Difference]: Start difference. First operand 140 states and 147 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-10-31 22:00:05,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:05,122 INFO L93 Difference]: Finished difference Result 143 states and 151 transitions. [2024-10-31 22:00:05,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:00:05,123 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), 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 46 [2024-10-31 22:00:05,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:05,124 INFO L225 Difference]: With dead ends: 143 [2024-10-31 22:00:05,124 INFO L226 Difference]: Without dead ends: 142 [2024-10-31 22:00:05,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:00:05,126 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 1 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:05,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 206 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:00:05,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-10-31 22:00:05,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 141. [2024-10-31 22:00:05,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 86 states have (on average 1.5348837209302326) internal successors, (132), 131 states have internal predecessors, (132), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-31 22:00:05,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 148 transitions. [2024-10-31 22:00:05,135 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 148 transitions. Word has length 46 [2024-10-31 22:00:05,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:05,137 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 148 transitions. [2024-10-31 22:00:05,137 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), 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) [2024-10-31 22:00:05,137 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 148 transitions. [2024-10-31 22:00:05,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-31 22:00:05,139 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:05,139 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] [2024-10-31 22:00:05,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:00:05,140 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-31 22:00:05,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:05,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1018385895, now seen corresponding path program 1 times [2024-10-31 22:00:05,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:05,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842551926] [2024-10-31 22:00:05,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:05,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:05,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:05,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:05,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:00:05,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:05,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:00:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:05,265 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:00:05,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:05,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842551926] [2024-10-31 22:00:05,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842551926] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:05,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:05,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:00:05,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654257333] [2024-10-31 22:00:05,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:05,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:00:05,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:05,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:00:05,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:00:05,270 INFO L87 Difference]: Start difference. First operand 141 states and 148 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-10-31 22:00:05,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:05,394 INFO L93 Difference]: Finished difference Result 143 states and 150 transitions. [2024-10-31 22:00:05,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:00:05,395 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), 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 47 [2024-10-31 22:00:05,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:05,396 INFO L225 Difference]: With dead ends: 143 [2024-10-31 22:00:05,396 INFO L226 Difference]: Without dead ends: 142 [2024-10-31 22:00:05,397 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 [2024-10-31 22:00:05,401 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 0 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:05,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 153 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:00:05,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-10-31 22:00:05,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-10-31 22:00:05,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 87 states have (on average 1.528735632183908) internal successors, (133), 132 states have internal predecessors, (133), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-31 22:00:05,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 149 transitions. [2024-10-31 22:00:05,410 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 149 transitions. Word has length 47 [2024-10-31 22:00:05,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:05,411 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 149 transitions. [2024-10-31 22:00:05,415 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), 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) [2024-10-31 22:00:05,416 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 149 transitions. [2024-10-31 22:00:05,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-31 22:00:05,417 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:05,417 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] [2024-10-31 22:00:05,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:00:05,418 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-31 22:00:05,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:05,419 INFO L85 PathProgramCache]: Analyzing trace with hash 583699707, now seen corresponding path program 1 times [2024-10-31 22:00:05,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:05,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675093700] [2024-10-31 22:00:05,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:05,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:05,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:05,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:00:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:05,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:00:05,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:05,528 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:00:05,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:05,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675093700] [2024-10-31 22:00:05,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675093700] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:05,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410261408] [2024-10-31 22:00:05,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:05,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:05,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:05,532 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:05,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:00:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:05,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:00:05,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:05,687 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:00:05,687 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:00:05,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410261408] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:05,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:00:05,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-10-31 22:00:05,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359598573] [2024-10-31 22:00:05,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:05,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:00:05,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:05,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:00:05,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:00:05,690 INFO L87 Difference]: Start difference. First operand 142 states and 149 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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) [2024-10-31 22:00:05,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:05,797 INFO L93 Difference]: Finished difference Result 142 states and 149 transitions. [2024-10-31 22:00:05,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:00:05,798 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 49 [2024-10-31 22:00:05,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:05,801 INFO L225 Difference]: With dead ends: 142 [2024-10-31 22:00:05,802 INFO L226 Difference]: Without dead ends: 133 [2024-10-31 22:00:05,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:00:05,803 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 120 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:05,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 117 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:00:05,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-10-31 22:00:05,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-10-31 22:00:05,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 87 states have (on average 1.4252873563218391) internal successors, (124), 123 states have internal predecessors, (124), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-31 22:00:05,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 140 transitions. [2024-10-31 22:00:05,814 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 140 transitions. Word has length 49 [2024-10-31 22:00:05,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:05,815 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 140 transitions. [2024-10-31 22:00:05,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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) [2024-10-31 22:00:05,815 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 140 transitions. [2024-10-31 22:00:05,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-31 22:00:05,816 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:05,816 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] [2024-10-31 22:00:05,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:00:06,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:06,017 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-31 22:00:06,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:06,018 INFO L85 PathProgramCache]: Analyzing trace with hash 914821778, now seen corresponding path program 1 times [2024-10-31 22:00:06,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:06,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135455841] [2024-10-31 22:00:06,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:06,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:06,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:06,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:00:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:06,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:00:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:06,114 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:00:06,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:06,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135455841] [2024-10-31 22:00:06,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135455841] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:06,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844028195] [2024-10-31 22:00:06,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:06,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:06,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:06,118 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:06,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:00:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:06,168 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:00:06,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:06,254 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:00:06,254 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:06,379 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:00:06,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844028195] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:06,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:06,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-10-31 22:00:06,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542637919] [2024-10-31 22:00:06,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:06,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:00:06,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:06,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:00:06,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:00:06,382 INFO L87 Difference]: Start difference. First operand 133 states and 140 transitions. Second operand has 7 states, 6 states have (on average 16.5) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-31 22:00:06,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:06,570 INFO L93 Difference]: Finished difference Result 228 states and 257 transitions. [2024-10-31 22:00:06,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:06,571 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.5) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 50 [2024-10-31 22:00:06,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:06,572 INFO L225 Difference]: With dead ends: 228 [2024-10-31 22:00:06,572 INFO L226 Difference]: Without dead ends: 219 [2024-10-31 22:00:06,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:00:06,573 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 131 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:06,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 267 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:00:06,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-10-31 22:00:06,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 124. [2024-10-31 22:00:06,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 87 states have (on average 1.3218390804597702) internal successors, (115), 114 states have internal predecessors, (115), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-31 22:00:06,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 131 transitions. [2024-10-31 22:00:06,583 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 131 transitions. Word has length 50 [2024-10-31 22:00:06,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:06,584 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 131 transitions. [2024-10-31 22:00:06,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.5) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-31 22:00:06,584 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 131 transitions. [2024-10-31 22:00:06,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-31 22:00:06,585 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:06,585 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:06,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:00:06,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-31 22:00:06,797 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-31 22:00:06,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:06,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1608751191, now seen corresponding path program 1 times [2024-10-31 22:00:06,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:06,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174568092] [2024-10-31 22:00:06,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:06,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:00:06,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [401249352] [2024-10-31 22:00:06,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:06,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:06,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:06,829 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:06,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:00:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:06,893 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:00:06,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:06,992 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-31 22:00:06,992 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:07,201 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-31 22:00:07,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:07,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174568092] [2024-10-31 22:00:07,201 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:00:07,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401249352] [2024-10-31 22:00:07,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401249352] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:07,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:00:07,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-10-31 22:00:07,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803238462] [2024-10-31 22:00:07,202 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:07,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:07,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:07,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:07,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:07,204 INFO L87 Difference]: Start difference. First operand 124 states and 131 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-31 22:00:07,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:07,451 INFO L93 Difference]: Finished difference Result 303 states and 325 transitions. [2024-10-31 22:00:07,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:07,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 63 [2024-10-31 22:00:07,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:07,454 INFO L225 Difference]: With dead ends: 303 [2024-10-31 22:00:07,454 INFO L226 Difference]: Without dead ends: 301 [2024-10-31 22:00:07,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:00:07,455 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 237 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:07,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 306 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:00:07,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-10-31 22:00:07,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 201. [2024-10-31 22:00:07,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 158 states have (on average 1.3734177215189873) internal successors, (217), 184 states have internal predecessors, (217), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-31 22:00:07,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 247 transitions. [2024-10-31 22:00:07,470 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 247 transitions. Word has length 63 [2024-10-31 22:00:07,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:07,471 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 247 transitions. [2024-10-31 22:00:07,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-31 22:00:07,471 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 247 transitions. [2024-10-31 22:00:07,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-31 22:00:07,472 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:07,472 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:07,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:07,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-31 22:00:07,678 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-31 22:00:07,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:07,678 INFO L85 PathProgramCache]: Analyzing trace with hash -2076583308, now seen corresponding path program 1 times [2024-10-31 22:00:07,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:07,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151640059] [2024-10-31 22:00:07,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:07,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:00:07,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1347235768] [2024-10-31 22:00:07,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:07,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:07,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:07,700 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:07,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:00:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:07,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:00:07,777 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:07,870 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-31 22:00:07,870 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:08,044 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-31 22:00:08,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:08,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151640059] [2024-10-31 22:00:08,044 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:00:08,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347235768] [2024-10-31 22:00:08,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347235768] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:08,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:00:08,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-10-31 22:00:08,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270170137] [2024-10-31 22:00:08,045 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:08,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:08,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:08,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:08,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:08,047 INFO L87 Difference]: Start difference. First operand 201 states and 247 transitions. Second operand has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-10-31 22:00:08,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:08,380 INFO L93 Difference]: Finished difference Result 261 states and 324 transitions. [2024-10-31 22:00:08,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:08,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 70 [2024-10-31 22:00:08,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:08,382 INFO L225 Difference]: With dead ends: 261 [2024-10-31 22:00:08,382 INFO L226 Difference]: Without dead ends: 253 [2024-10-31 22:00:08,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:00:08,384 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 151 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:08,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 223 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:00:08,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-10-31 22:00:08,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 197. [2024-10-31 22:00:08,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 160 states have (on average 1.2625) internal successors, (202), 179 states have internal predecessors, (202), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-31 22:00:08,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 234 transitions. [2024-10-31 22:00:08,404 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 234 transitions. Word has length 70 [2024-10-31 22:00:08,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:08,404 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 234 transitions. [2024-10-31 22:00:08,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-10-31 22:00:08,405 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 234 transitions. [2024-10-31 22:00:08,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-31 22:00:08,408 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:08,408 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:08,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-31 22:00:08,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-31 22:00:08,616 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-31 22:00:08,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:08,617 INFO L85 PathProgramCache]: Analyzing trace with hash 50426961, now seen corresponding path program 1 times [2024-10-31 22:00:08,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:08,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562615839] [2024-10-31 22:00:08,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:08,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:08,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:08,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:08,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:00:08,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:08,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:00:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:08,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 22:00:08,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:08,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-31 22:00:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:08,881 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-31 22:00:08,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:08,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562615839] [2024-10-31 22:00:08,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562615839] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:08,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839250022] [2024-10-31 22:00:08,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:08,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:08,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:08,884 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:08,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 22:00:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:08,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:00:08,946 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:09,167 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-31 22:00:09,167 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:09,320 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-31 22:00:09,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839250022] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:09,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:09,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-10-31 22:00:09,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014625070] [2024-10-31 22:00:09,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:09,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:00:09,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:09,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:00:09,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:00:09,324 INFO L87 Difference]: Start difference. First operand 197 states and 234 transitions. Second operand has 10 states, 9 states have (on average 13.88888888888889) internal successors, (125), 10 states have internal predecessors, (125), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-10-31 22:00:09,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:09,603 INFO L93 Difference]: Finished difference Result 197 states and 234 transitions. [2024-10-31 22:00:09,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:09,604 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.88888888888889) internal successors, (125), 10 states have internal predecessors, (125), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 71 [2024-10-31 22:00:09,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:09,605 INFO L225 Difference]: With dead ends: 197 [2024-10-31 22:00:09,605 INFO L226 Difference]: Without dead ends: 194 [2024-10-31 22:00:09,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:00:09,606 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 90 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:09,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 192 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:00:09,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-10-31 22:00:09,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-10-31 22:00:09,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 160 states have (on average 1.21875) internal successors, (195), 176 states have internal predecessors, (195), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-31 22:00:09,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 227 transitions. [2024-10-31 22:00:09,623 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 227 transitions. Word has length 71 [2024-10-31 22:00:09,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:09,623 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 227 transitions. [2024-10-31 22:00:09,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.88888888888889) internal successors, (125), 10 states have internal predecessors, (125), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-10-31 22:00:09,624 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 227 transitions. [2024-10-31 22:00:09,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-31 22:00:09,625 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:09,625 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:09,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:09,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-31 22:00:09,826 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-31 22:00:09,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:09,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1563235862, now seen corresponding path program 1 times [2024-10-31 22:00:09,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:09,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292951316] [2024-10-31 22:00:09,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:09,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:09,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:09,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:09,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:00:09,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:09,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:00:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:09,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 22:00:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:09,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-31 22:00:09,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:09,963 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-31 22:00:09,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:09,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292951316] [2024-10-31 22:00:09,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292951316] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:09,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199639319] [2024-10-31 22:00:09,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:09,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:09,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:09,966 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:09,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-31 22:00:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:10,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:00:10,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:10,235 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-31 22:00:10,235 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:10,389 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-31 22:00:10,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199639319] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:10,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:10,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-10-31 22:00:10,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611372670] [2024-10-31 22:00:10,393 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:10,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:00:10,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:10,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:00:10,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:00:10,394 INFO L87 Difference]: Start difference. First operand 194 states and 227 transitions. Second operand has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 10 states have internal predecessors, (127), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-10-31 22:00:10,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:10,766 INFO L93 Difference]: Finished difference Result 220 states and 259 transitions. [2024-10-31 22:00:10,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:00:10,766 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 10 states have internal predecessors, (127), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 72 [2024-10-31 22:00:10,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:10,768 INFO L225 Difference]: With dead ends: 220 [2024-10-31 22:00:10,768 INFO L226 Difference]: Without dead ends: 211 [2024-10-31 22:00:10,768 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=72, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:00:10,769 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 133 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:10,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 255 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:00:10,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-10-31 22:00:10,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 187. [2024-10-31 22:00:10,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 160 states have (on average 1.11875) internal successors, (179), 169 states have internal predecessors, (179), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-31 22:00:10,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 211 transitions. [2024-10-31 22:00:10,786 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 211 transitions. Word has length 72 [2024-10-31 22:00:10,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:10,786 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 211 transitions. [2024-10-31 22:00:10,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 10 states have internal predecessors, (127), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-10-31 22:00:10,786 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 211 transitions. [2024-10-31 22:00:10,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-31 22:00:10,789 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:10,790 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:10,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:10,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-31 22:00:10,995 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-31 22:00:10,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:10,995 INFO L85 PathProgramCache]: Analyzing trace with hash -968887880, now seen corresponding path program 1 times [2024-10-31 22:00:10,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:10,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880801404] [2024-10-31 22:00:10,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:10,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:11,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:11,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:11,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:00:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:11,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:00:11,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:11,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 22:00:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:11,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-31 22:00:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:11,144 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-31 22:00:11,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:11,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880801404] [2024-10-31 22:00:11,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880801404] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:11,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787155510] [2024-10-31 22:00:11,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:11,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:11,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:11,147 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:11,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-31 22:00:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:11,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:00:11,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:11,490 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-31 22:00:11,490 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:00:11,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787155510] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:11,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:00:11,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-10-31 22:00:11,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996786225] [2024-10-31 22:00:11,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:11,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:11,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:11,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:11,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:00:11,493 INFO L87 Difference]: Start difference. First operand 187 states and 211 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 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) [2024-10-31 22:00:11,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:11,621 INFO L93 Difference]: Finished difference Result 187 states and 211 transitions. [2024-10-31 22:00:11,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:11,622 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 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 74 [2024-10-31 22:00:11,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:11,623 INFO L225 Difference]: With dead ends: 187 [2024-10-31 22:00:11,623 INFO L226 Difference]: Without dead ends: 157 [2024-10-31 22:00:11,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:00:11,624 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 101 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:11,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 107 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:00:11,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-10-31 22:00:11,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2024-10-31 22:00:11,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 138 states have (on average 1.036231884057971) internal successors, (143), 141 states have internal predecessors, (143), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-31 22:00:11,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 171 transitions. [2024-10-31 22:00:11,638 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 171 transitions. Word has length 74 [2024-10-31 22:00:11,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:11,639 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 171 transitions. [2024-10-31 22:00:11,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 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) [2024-10-31 22:00:11,639 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 171 transitions. [2024-10-31 22:00:11,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-31 22:00:11,641 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:11,641 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1] [2024-10-31 22:00:11,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:11,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-31 22:00:11,842 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-31 22:00:11,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:11,842 INFO L85 PathProgramCache]: Analyzing trace with hash 40142009, now seen corresponding path program 1 times [2024-10-31 22:00:11,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:11,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269228437] [2024-10-31 22:00:11,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:11,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:11,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:12,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:00:12,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:00:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 22:00:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-31 22:00:12,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-31 22:00:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-31 22:00:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-31 22:00:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-31 22:00:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,187 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-10-31 22:00:12,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:12,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269228437] [2024-10-31 22:00:12,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269228437] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:12,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295312919] [2024-10-31 22:00:12,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:12,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:12,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:12,193 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:12,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-31 22:00:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:00:12,265 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:12,744 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-10-31 22:00:12,744 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:13,092 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-10-31 22:00:13,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295312919] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:13,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:13,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2024-10-31 22:00:13,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684116321] [2024-10-31 22:00:13,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:13,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-31 22:00:13,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:13,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-31 22:00:13,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=236, Unknown=0, NotChecked=0, Total=380 [2024-10-31 22:00:13,096 INFO L87 Difference]: Start difference. First operand 157 states and 171 transitions. Second operand has 20 states, 19 states have (on average 14.578947368421053) internal successors, (277), 20 states have internal predecessors, (277), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-10-31 22:00:13,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:13,516 INFO L93 Difference]: Finished difference Result 244 states and 272 transitions. [2024-10-31 22:00:13,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-31 22:00:13,516 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 14.578947368421053) internal successors, (277), 20 states have internal predecessors, (277), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) Word has length 137 [2024-10-31 22:00:13,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:13,518 INFO L225 Difference]: With dead ends: 244 [2024-10-31 22:00:13,518 INFO L226 Difference]: Without dead ends: 243 [2024-10-31 22:00:13,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=248, Invalid=402, Unknown=0, NotChecked=0, Total=650 [2024-10-31 22:00:13,520 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 6 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:13,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 227 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:00:13,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-10-31 22:00:13,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 241. [2024-10-31 22:00:13,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 215 states have (on average 1.0511627906976744) internal successors, (226), 218 states have internal predecessors, (226), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-31 22:00:13,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 268 transitions. [2024-10-31 22:00:13,544 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 268 transitions. Word has length 137 [2024-10-31 22:00:13,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:13,545 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 268 transitions. [2024-10-31 22:00:13,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 14.578947368421053) internal successors, (277), 20 states have internal predecessors, (277), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-10-31 22:00:13,545 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 268 transitions. [2024-10-31 22:00:13,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-31 22:00:13,547 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:13,548 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2024-10-31 22:00:13,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-31 22:00:13,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-31 22:00:13,752 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-31 22:00:13,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:13,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1366134922, now seen corresponding path program 2 times [2024-10-31 22:00:13,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:13,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694494683] [2024-10-31 22:00:13,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:13,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:00:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:00:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 22:00:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-31 22:00:14,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-31 22:00:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-31 22:00:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-31 22:00:14,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-31 22:00:14,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-31 22:00:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-31 22:00:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,079 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-31 22:00:14,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:14,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694494683] [2024-10-31 22:00:14,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694494683] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:14,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445926283] [2024-10-31 22:00:14,080 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:00:14,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:14,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:14,082 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:14,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-31 22:00:14,160 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:00:14,160 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:14,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 22:00:14,164 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:14,691 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-31 22:00:14,692 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:15,077 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-31 22:00:15,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445926283] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:15,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:15,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-10-31 22:00:15,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42879010] [2024-10-31 22:00:15,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:15,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-31 22:00:15,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:15,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-31 22:00:15,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=297, Unknown=0, NotChecked=0, Total=462 [2024-10-31 22:00:15,081 INFO L87 Difference]: Start difference. First operand 241 states and 268 transitions. Second operand has 22 states, 21 states have (on average 14.619047619047619) internal successors, (307), 22 states have internal predecessors, (307), 11 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 11 states have call predecessors, (31), 11 states have call successors, (31) [2024-10-31 22:00:15,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:15,632 INFO L93 Difference]: Finished difference Result 263 states and 290 transitions. [2024-10-31 22:00:15,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-31 22:00:15,633 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 14.619047619047619) internal successors, (307), 22 states have internal predecessors, (307), 11 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 11 states have call predecessors, (31), 11 states have call successors, (31) Word has length 162 [2024-10-31 22:00:15,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:15,635 INFO L225 Difference]: With dead ends: 263 [2024-10-31 22:00:15,635 INFO L226 Difference]: Without dead ends: 262 [2024-10-31 22:00:15,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=319, Invalid=551, Unknown=0, NotChecked=0, Total=870 [2024-10-31 22:00:15,637 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 89 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:15,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 305 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:00:15,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-10-31 22:00:15,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 258. [2024-10-31 22:00:15,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 230 states have (on average 1.0434782608695652) internal successors, (240), 233 states have internal predecessors, (240), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-31 22:00:15,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 286 transitions. [2024-10-31 22:00:15,657 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 286 transitions. Word has length 162 [2024-10-31 22:00:15,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:15,658 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 286 transitions. [2024-10-31 22:00:15,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 14.619047619047619) internal successors, (307), 22 states have internal predecessors, (307), 11 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 11 states have call predecessors, (31), 11 states have call successors, (31) [2024-10-31 22:00:15,658 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 286 transitions. [2024-10-31 22:00:15,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-10-31 22:00:15,661 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:15,661 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2024-10-31 22:00:15,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-31 22:00:15,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-31 22:00:15,865 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-31 22:00:15,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:15,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1203398126, now seen corresponding path program 2 times [2024-10-31 22:00:15,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:15,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684500643] [2024-10-31 22:00:15,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:15,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:00:15,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [356416720] [2024-10-31 22:00:15,913 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:00:15,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:15,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:15,915 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:15,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-31 22:00:16,012 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:00:16,012 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:16,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 22:00:16,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:16,258 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 246 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-31 22:00:16,259 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:16,780 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 246 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-31 22:00:16,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:16,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684500643] [2024-10-31 22:00:16,781 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:00:16,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356416720] [2024-10-31 22:00:16,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356416720] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:16,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:00:16,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-10-31 22:00:16,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568813297] [2024-10-31 22:00:16,782 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:16,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-31 22:00:16,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:16,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:00:16,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:00:16,784 INFO L87 Difference]: Start difference. First operand 258 states and 286 transitions. Second operand has 12 states, 11 states have (on average 24.363636363636363) internal successors, (268), 12 states have internal predecessors, (268), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-10-31 22:00:17,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:17,376 INFO L93 Difference]: Finished difference Result 363 states and 398 transitions. [2024-10-31 22:00:17,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:00:17,377 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 24.363636363636363) internal successors, (268), 12 states have internal predecessors, (268), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 198 [2024-10-31 22:00:17,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:17,380 INFO L225 Difference]: With dead ends: 363 [2024-10-31 22:00:17,380 INFO L226 Difference]: Without dead ends: 362 [2024-10-31 22:00:17,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-10-31 22:00:17,381 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 141 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:17,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 668 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:00:17,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-10-31 22:00:17,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 352. [2024-10-31 22:00:17,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 316 states have (on average 1.0443037974683544) internal successors, (330), 319 states have internal predecessors, (330), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-31 22:00:17,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 392 transitions. [2024-10-31 22:00:17,407 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 392 transitions. Word has length 198 [2024-10-31 22:00:17,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:17,408 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 392 transitions. [2024-10-31 22:00:17,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 24.363636363636363) internal successors, (268), 12 states have internal predecessors, (268), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-10-31 22:00:17,409 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 392 transitions. [2024-10-31 22:00:17,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-10-31 22:00:17,411 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:17,411 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2024-10-31 22:00:17,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-31 22:00:17,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-31 22:00:17,612 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-31 22:00:17,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:17,613 INFO L85 PathProgramCache]: Analyzing trace with hash 839897067, now seen corresponding path program 2 times [2024-10-31 22:00:17,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:17,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724784107] [2024-10-31 22:00:17,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:17,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:00:17,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1843198344] [2024-10-31 22:00:17,659 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:00:17,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:17,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:17,661 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:17,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-31 22:00:17,817 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:00:17,817 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:17,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 22:00:17,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:18,071 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 0 proven. 258 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-31 22:00:18,072 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:18,594 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 0 proven. 258 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-31 22:00:18,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:18,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724784107] [2024-10-31 22:00:18,595 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:00:18,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843198344] [2024-10-31 22:00:18,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843198344] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:18,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:00:18,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-10-31 22:00:18,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182369435] [2024-10-31 22:00:18,596 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:18,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-31 22:00:18,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:18,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:00:18,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:00:18,598 INFO L87 Difference]: Start difference. First operand 352 states and 392 transitions. Second operand has 12 states, 11 states have (on average 24.727272727272727) internal successors, (272), 12 states have internal predecessors, (272), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2024-10-31 22:00:19,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:19,230 INFO L93 Difference]: Finished difference Result 358 states and 397 transitions. [2024-10-31 22:00:19,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:00:19,231 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 24.727272727272727) internal successors, (272), 12 states have internal predecessors, (272), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) Word has length 205 [2024-10-31 22:00:19,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:19,233 INFO L225 Difference]: With dead ends: 358 [2024-10-31 22:00:19,233 INFO L226 Difference]: Without dead ends: 357 [2024-10-31 22:00:19,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-10-31 22:00:19,235 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 113 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:19,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 619 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-31 22:00:19,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-10-31 22:00:19,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 355. [2024-10-31 22:00:19,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 318 states have (on average 1.028301886792453) internal successors, (327), 321 states have internal predecessors, (327), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-31 22:00:19,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 391 transitions. [2024-10-31 22:00:19,260 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 391 transitions. Word has length 205 [2024-10-31 22:00:19,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:19,260 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 391 transitions. [2024-10-31 22:00:19,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 24.727272727272727) internal successors, (272), 12 states have internal predecessors, (272), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2024-10-31 22:00:19,261 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 391 transitions. [2024-10-31 22:00:19,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-10-31 22:00:19,266 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:19,266 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1] [2024-10-31 22:00:19,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:19,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:19,470 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-31 22:00:19,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:19,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1498631, now seen corresponding path program 2 times [2024-10-31 22:00:19,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:19,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306199157] [2024-10-31 22:00:19,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:19,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:00:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:00:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 22:00:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-31 22:00:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-31 22:00:20,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-31 22:00:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-31 22:00:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-31 22:00:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-31 22:00:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-31 22:00:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-31 22:00:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-31 22:00:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-10-31 22:00:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-10-31 22:00:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-10-31 22:00:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-10-31 22:00:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-10-31 22:00:20,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2024-10-31 22:00:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2024-10-31 22:00:20,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2024-10-31 22:00:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1533 backedges. 0 proven. 693 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-31 22:00:20,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:20,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306199157] [2024-10-31 22:00:20,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306199157] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:20,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631139208] [2024-10-31 22:00:20,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:00:20,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:20,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:20,413 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:20,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-31 22:00:20,543 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:00:20,544 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:20,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:00:20,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:21,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1533 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 1461 trivial. 0 not checked. [2024-10-31 22:00:21,083 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:21,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1533 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 1461 trivial. 0 not checked. [2024-10-31 22:00:21,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631139208] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:21,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:21,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 23 [2024-10-31 22:00:21,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939250593] [2024-10-31 22:00:21,620 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:21,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-31 22:00:21,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:21,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-31 22:00:21,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2024-10-31 22:00:21,631 INFO L87 Difference]: Start difference. First operand 355 states and 391 transitions. Second operand has 24 states, 23 states have (on average 13.08695652173913) internal successors, (301), 24 states have internal predecessors, (301), 11 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 11 states have call predecessors, (29), 11 states have call successors, (29) [2024-10-31 22:00:23,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:23,592 INFO L93 Difference]: Finished difference Result 355 states and 391 transitions. [2024-10-31 22:00:23,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-10-31 22:00:23,593 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 13.08695652173913) internal successors, (301), 24 states have internal predecessors, (301), 11 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 11 states have call predecessors, (29), 11 states have call successors, (29) Word has length 317 [2024-10-31 22:00:23,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:23,596 INFO L225 Difference]: With dead ends: 355 [2024-10-31 22:00:23,598 INFO L226 Difference]: Without dead ends: 354 [2024-10-31 22:00:23,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 723 GetRequests, 667 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 709 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=511, Invalid=2795, Unknown=0, NotChecked=0, Total=3306 [2024-10-31 22:00:23,601 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 452 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 1403 SdHoareTripleChecker+Invalid, 1736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:23,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 1403 Invalid, 1736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1662 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-31 22:00:23,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-10-31 22:00:23,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2024-10-31 22:00:23,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 318 states have (on average 1.0157232704402517) internal successors, (323), 320 states have internal predecessors, (323), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-31 22:00:23,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 387 transitions. [2024-10-31 22:00:23,639 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 387 transitions. Word has length 317 [2024-10-31 22:00:23,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:23,640 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 387 transitions. [2024-10-31 22:00:23,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 13.08695652173913) internal successors, (301), 24 states have internal predecessors, (301), 11 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 11 states have call predecessors, (29), 11 states have call successors, (29) [2024-10-31 22:00:23,641 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 387 transitions. [2024-10-31 22:00:23,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-10-31 22:00:23,647 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:23,648 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1] [2024-10-31 22:00:23,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-31 22:00:23,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:23,852 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-31 22:00:23,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:23,853 INFO L85 PathProgramCache]: Analyzing trace with hash -337823178, now seen corresponding path program 3 times [2024-10-31 22:00:23,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:23,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484471550] [2024-10-31 22:00:23,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:23,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:00:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:00:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 22:00:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-31 22:00:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-31 22:00:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-31 22:00:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-31 22:00:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-31 22:00:24,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-31 22:00:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-31 22:00:24,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-31 22:00:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-31 22:00:24,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-10-31 22:00:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-10-31 22:00:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-10-31 22:00:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-10-31 22:00:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-10-31 22:00:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2024-10-31 22:00:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2024-10-31 22:00:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2024-10-31 22:00:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-10-31 22:00:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-10-31 22:00:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:24,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1824 backedges. 0 proven. 812 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-31 22:00:24,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:24,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484471550] [2024-10-31 22:00:24,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484471550] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:24,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100694516] [2024-10-31 22:00:24,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 22:00:24,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:24,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:24,815 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:24,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13efaf59-e04d-49be-b5fb-c33cfb3caad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-31 22:00:24,882 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-31 22:00:24,882 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:24,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-31 22:00:24,889 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:25,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1824 backedges. 126 proven. 155 refuted. 0 times theorem prover too weak. 1543 trivial. 0 not checked. [2024-10-31 22:00:25,607 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:26,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100694516] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:26,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:00:26,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 8] total 23 [2024-10-31 22:00:26,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087082447] [2024-10-31 22:00:26,505 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:26,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-31 22:00:26,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:26,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-31 22:00:26,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=763, Unknown=0, NotChecked=0, Total=870 [2024-10-31 22:00:26,508 INFO L87 Difference]: Start difference. First operand 354 states and 387 transitions. Second operand has 24 states, 23 states have (on average 12.434782608695652) internal successors, (286), 24 states have internal predecessors, (286), 11 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (28), 11 states have call predecessors, (28), 11 states have call successors, (28)