./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/verifythis/elimination_max.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b 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_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:12:45,010 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:12:45,080 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:12:45,085 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:12:45,086 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:12:45,113 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:12:45,114 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:12:45,114 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:12:45,115 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:12:45,116 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:12:45,117 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:12:45,118 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:12:45,118 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:12:45,119 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:12:45,119 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:12:45,120 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:12:45,121 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:12:45,121 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:12:45,122 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:12:45,122 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:12:45,123 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:12:45,128 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:12:45,128 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:12:45,129 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:12:45,129 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:12:45,130 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:12:45,130 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:12:45,131 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:12:45,132 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:12:45,132 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:12:45,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:12:45,134 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:12:45,134 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:12:45,135 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:12:45,135 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:12:45,135 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:12:45,135 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:12:45,136 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:12:45,137 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:12:45,137 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:12:45,137 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:12:45,138 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_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e [2023-11-06 22:12:45,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:12:45,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:12:45,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:12:45,531 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:12:45,532 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:12:45,533 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/verifythis/elimination_max.c [2023-11-06 22:12:48,706 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:12:48,924 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:12:48,924 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/sv-benchmarks/c/verifythis/elimination_max.c [2023-11-06 22:12:48,933 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/data/f57a700b3/4194d95358994b72af6f88a6b76c0ec7/FLAG34ef10ae0 [2023-11-06 22:12:48,949 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/data/f57a700b3/4194d95358994b72af6f88a6b76c0ec7 [2023-11-06 22:12:48,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:12:48,953 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:12:48,955 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:12:48,955 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:12:48,961 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:12:48,962 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:12:48" (1/1) ... [2023-11-06 22:12:48,963 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16d5e9d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:48, skipping insertion in model container [2023-11-06 22:12:48,964 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:12:48" (1/1) ... [2023-11-06 22:12:48,985 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:12:49,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:12:49,220 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:12:49,255 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:12:49,274 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:12:49,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:49 WrapperNode [2023-11-06 22:12:49,275 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:12:49,277 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:12:49,277 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:12:49,277 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:12:49,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:49" (1/1) ... [2023-11-06 22:12:49,303 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:49" (1/1) ... [2023-11-06 22:12:49,335 INFO L138 Inliner]: procedures = 18, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2023-11-06 22:12:49,336 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:12:49,336 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:12:49,337 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:12:49,337 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:12:49,346 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:49" (1/1) ... [2023-11-06 22:12:49,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:49" (1/1) ... [2023-11-06 22:12:49,353 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:49" (1/1) ... [2023-11-06 22:12:49,354 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:49" (1/1) ... [2023-11-06 22:12:49,372 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:49" (1/1) ... [2023-11-06 22:12:49,377 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:49" (1/1) ... [2023-11-06 22:12:49,382 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:49" (1/1) ... [2023-11-06 22:12:49,389 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:49" (1/1) ... [2023-11-06 22:12:49,391 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:12:49,393 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:12:49,393 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:12:49,394 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:12:49,395 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:49" (1/1) ... [2023-11-06 22:12:49,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:12:49,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:12:49,438 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:12:49,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:12:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:12:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:12:49,478 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:12:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:12:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:12:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:12:49,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:12:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:12:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 22:12:49,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 22:12:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:12:49,564 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:12:49,566 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:12:49,761 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:12:49,768 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:12:49,768 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:12:49,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:12:49 BoogieIcfgContainer [2023-11-06 22:12:49,772 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:12:49,775 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:12:49,775 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:12:49,778 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:12:49,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:12:48" (1/3) ... [2023-11-06 22:12:49,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32afeb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:12:49, skipping insertion in model container [2023-11-06 22:12:49,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:49" (2/3) ... [2023-11-06 22:12:49,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32afeb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:12:49, skipping insertion in model container [2023-11-06 22:12:49,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:12:49" (3/3) ... [2023-11-06 22:12:49,781 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2023-11-06 22:12:49,803 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:12:49,803 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-06 22:12:49,856 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:12:49,864 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7121055, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:12:49,864 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-06 22:12:49,868 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.5) internal successors, (45), 38 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 22:12:49,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 22:12:49,879 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:49,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:49,881 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:12:49,890 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:49,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1376423430, now seen corresponding path program 1 times [2023-11-06 22:12:49,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:49,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594916412] [2023-11-06 22:12:49,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:49,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:50,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:12:50,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:50,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:50,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:50,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594916412] [2023-11-06 22:12:50,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594916412] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:50,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:50,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:12:50,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178893055] [2023-11-06 22:12:50,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:50,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:12:50,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:50,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:12:50,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:12:50,159 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.5) internal successors, (45), 38 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:12:50,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:50,199 INFO L93 Difference]: Finished difference Result 86 states and 105 transitions. [2023-11-06 22:12:50,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:12:50,202 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2023-11-06 22:12:50,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:50,210 INFO L225 Difference]: With dead ends: 86 [2023-11-06 22:12:50,211 INFO L226 Difference]: Without dead ends: 40 [2023-11-06 22:12:50,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:12:50,221 INFO L413 NwaCegarLoop]: 48 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, 48 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 [2023-11-06 22:12:50,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:12:50,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-06 22:12:50,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-06 22:12:50,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 33 states have internal predecessors, (36), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 22:12:50,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2023-11-06 22:12:50,278 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 10 [2023-11-06 22:12:50,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:50,279 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2023-11-06 22:12:50,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:12:50,280 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2023-11-06 22:12:50,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 22:12:50,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:50,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:50,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:12:50,284 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:12:50,286 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:50,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1433681732, now seen corresponding path program 1 times [2023-11-06 22:12:50,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:50,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683337500] [2023-11-06 22:12:50,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:50,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:50,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:12:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:50,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:50,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:50,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683337500] [2023-11-06 22:12:50,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683337500] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:50,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:50,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:12:50,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866066208] [2023-11-06 22:12:50,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:50,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:12:50,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:50,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:12:50,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:12:50,611 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:12:50,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:50,687 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2023-11-06 22:12:50,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:12:50,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2023-11-06 22:12:50,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:50,689 INFO L225 Difference]: With dead ends: 40 [2023-11-06 22:12:50,689 INFO L226 Difference]: Without dead ends: 38 [2023-11-06 22:12:50,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:12:50,691 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 26 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:50,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 107 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:12:50,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-06 22:12:50,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-11-06 22:12:50,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 31 states have internal predecessors, (34), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 22:12:50,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2023-11-06 22:12:50,701 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 10 [2023-11-06 22:12:50,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:50,708 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2023-11-06 22:12:50,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:12:50,711 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2023-11-06 22:12:50,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 22:12:50,714 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:50,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:50,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:12:50,715 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:12:50,716 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:50,716 INFO L85 PathProgramCache]: Analyzing trace with hash -150082929, now seen corresponding path program 1 times [2023-11-06 22:12:50,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:50,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346137518] [2023-11-06 22:12:50,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:50,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:50,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:12:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:50,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:50,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:50,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346137518] [2023-11-06 22:12:50,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346137518] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:50,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:50,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:12:50,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693309440] [2023-11-06 22:12:50,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:50,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:12:50,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:50,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:12:50,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:12:50,840 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:12:50,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:50,898 INFO L93 Difference]: Finished difference Result 61 states and 70 transitions. [2023-11-06 22:12:50,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:12:50,899 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-11-06 22:12:50,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:50,901 INFO L225 Difference]: With dead ends: 61 [2023-11-06 22:12:50,901 INFO L226 Difference]: Without dead ends: 59 [2023-11-06 22:12:50,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:12:50,903 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 19 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:50,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 108 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:12:50,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-06 22:12:50,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 44. [2023-11-06 22:12:50,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 32 states have (on average 1.375) internal successors, (44), 37 states have internal predecessors, (44), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 22:12:50,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2023-11-06 22:12:50,918 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 14 [2023-11-06 22:12:50,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:50,918 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2023-11-06 22:12:50,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:12:50,919 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2023-11-06 22:12:50,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 22:12:50,920 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:50,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:50,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:12:50,921 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:12:50,921 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:50,921 INFO L85 PathProgramCache]: Analyzing trace with hash -150082737, now seen corresponding path program 1 times [2023-11-06 22:12:50,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:50,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861437264] [2023-11-06 22:12:50,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:50,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:51,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:12:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:51,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:51,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:51,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861437264] [2023-11-06 22:12:51,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861437264] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:51,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:51,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:12:51,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480616410] [2023-11-06 22:12:51,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:51,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:12:51,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:51,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:12:51,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:12:51,191 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:12:51,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:51,281 INFO L93 Difference]: Finished difference Result 75 states and 88 transitions. [2023-11-06 22:12:51,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:12:51,282 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-11-06 22:12:51,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:51,283 INFO L225 Difference]: With dead ends: 75 [2023-11-06 22:12:51,283 INFO L226 Difference]: Without dead ends: 38 [2023-11-06 22:12:51,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:12:51,286 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 55 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:51,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 79 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:12:51,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-06 22:12:51,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-11-06 22:12:51,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 31 states have internal predecessors, (34), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 22:12:51,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2023-11-06 22:12:51,296 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 14 [2023-11-06 22:12:51,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:51,296 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2023-11-06 22:12:51,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:12:51,296 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2023-11-06 22:12:51,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-06 22:12:51,297 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:51,297 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:51,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:12:51,298 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:12:51,298 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:51,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1845346742, now seen corresponding path program 1 times [2023-11-06 22:12:51,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:51,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357275906] [2023-11-06 22:12:51,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:51,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:51,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:12:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:51,464 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:51,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:51,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357275906] [2023-11-06 22:12:51,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357275906] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:12:51,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813906026] [2023-11-06 22:12:51,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:51,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:51,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:12:51,474 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:12:51,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:12:51,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:51,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:12:51,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:12:51,669 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:51,669 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:12:51,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813906026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:51,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:12:51,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-06 22:12:51,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90679528] [2023-11-06 22:12:51,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:51,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:12:51,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:51,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:12:51,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:12:51,675 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:12:51,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:51,791 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2023-11-06 22:12:51,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:12:51,792 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-06 22:12:51,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:51,796 INFO L225 Difference]: With dead ends: 51 [2023-11-06 22:12:51,796 INFO L226 Difference]: Without dead ends: 50 [2023-11-06 22:12:51,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:12:51,801 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 29 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:51,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 147 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:12:51,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-06 22:12:51,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 37. [2023-11-06 22:12:51,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 30 states have internal predecessors, (33), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 22:12:51,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2023-11-06 22:12:51,821 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 18 [2023-11-06 22:12:51,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:51,821 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2023-11-06 22:12:51,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:12:51,824 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2023-11-06 22:12:51,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-06 22:12:51,825 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:51,825 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:51,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:12:52,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:52,033 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:12:52,033 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:52,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1371174098, now seen corresponding path program 1 times [2023-11-06 22:12:52,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:52,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346500836] [2023-11-06 22:12:52,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:52,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:52,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:12:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:52,147 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:52,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:52,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346500836] [2023-11-06 22:12:52,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346500836] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:12:52,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959613350] [2023-11-06 22:12:52,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:52,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:52,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:12:52,149 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:12:52,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:12:52,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:52,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:12:52,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:12:52,250 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:52,251 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:12:52,307 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:52,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959613350] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:12:52,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:12:52,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-06 22:12:52,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407830836] [2023-11-06 22:12:52,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:12:52,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:12:52,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:52,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:12:52,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:12:52,310 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:12:52,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:52,446 INFO L93 Difference]: Finished difference Result 102 states and 123 transitions. [2023-11-06 22:12:52,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:12:52,447 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2023-11-06 22:12:52,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:52,449 INFO L225 Difference]: With dead ends: 102 [2023-11-06 22:12:52,449 INFO L226 Difference]: Without dead ends: 101 [2023-11-06 22:12:52,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:12:52,451 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 64 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:52,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 308 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:12:52,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-06 22:12:52,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 49. [2023-11-06 22:12:52,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 40 states have (on average 1.2) internal successors, (48), 42 states have internal predecessors, (48), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 22:12:52,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 56 transitions. [2023-11-06 22:12:52,464 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 56 transitions. Word has length 19 [2023-11-06 22:12:52,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:52,464 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 56 transitions. [2023-11-06 22:12:52,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:12:52,465 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 56 transitions. [2023-11-06 22:12:52,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-06 22:12:52,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:52,466 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:52,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:12:52,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-06 22:12:52,672 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:12:52,672 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:52,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1344681024, now seen corresponding path program 1 times [2023-11-06 22:12:52,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:52,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144853825] [2023-11-06 22:12:52,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:52,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:52,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:52,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:12:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:52,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-06 22:12:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:52,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-06 22:12:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:52,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:12:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:52,773 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-06 22:12:52,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:52,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144853825] [2023-11-06 22:12:52,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144853825] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:52,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:52,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:12:52,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668646815] [2023-11-06 22:12:52,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:52,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:12:52,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:52,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:12:52,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:12:52,776 INFO L87 Difference]: Start difference. First operand 49 states and 56 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-06 22:12:52,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:52,810 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2023-11-06 22:12:52,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:12:52,811 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2023-11-06 22:12:52,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:52,813 INFO L225 Difference]: With dead ends: 57 [2023-11-06 22:12:52,813 INFO L226 Difference]: Without dead ends: 55 [2023-11-06 22:12:52,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:12:52,814 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 3 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:52,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 90 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:12:52,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-06 22:12:52,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-11-06 22:12:52,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 45 states have (on average 1.1777777777777778) internal successors, (53), 47 states have internal predecessors, (53), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-06 22:12:52,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 63 transitions. [2023-11-06 22:12:52,826 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 63 transitions. Word has length 34 [2023-11-06 22:12:52,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:52,826 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 63 transitions. [2023-11-06 22:12:52,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-06 22:12:52,827 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 63 transitions. [2023-11-06 22:12:52,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-06 22:12:52,828 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:52,828 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:52,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:12:52,829 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:12:52,829 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:52,829 INFO L85 PathProgramCache]: Analyzing trace with hash 485676829, now seen corresponding path program 2 times [2023-11-06 22:12:52,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:52,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325385667] [2023-11-06 22:12:52,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:52,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:53,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:12:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:53,044 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:53,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:53,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325385667] [2023-11-06 22:12:53,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325385667] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:12:53,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475304706] [2023-11-06 22:12:53,046 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:12:53,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:53,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:12:53,049 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:12:53,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:12:53,118 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:12:53,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:12:53,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:12:53,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:12:53,234 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-06 22:12:53,234 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:12:53,347 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-06 22:12:53,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475304706] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:12:53,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:12:53,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 19 [2023-11-06 22:12:53,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303258949] [2023-11-06 22:12:53,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:12:53,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-06 22:12:53,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:53,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-06 22:12:53,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2023-11-06 22:12:53,352 INFO L87 Difference]: Start difference. First operand 55 states and 63 transitions. Second operand has 20 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 20 states have internal predecessors, (55), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 22:12:53,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:53,748 INFO L93 Difference]: Finished difference Result 174 states and 209 transitions. [2023-11-06 22:12:53,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:12:53,749 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 20 states have internal predecessors, (55), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 31 [2023-11-06 22:12:53,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:53,751 INFO L225 Difference]: With dead ends: 174 [2023-11-06 22:12:53,751 INFO L226 Difference]: Without dead ends: 173 [2023-11-06 22:12:53,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=805, Unknown=0, NotChecked=0, Total=1122 [2023-11-06 22:12:53,753 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 194 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:53,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 363 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:12:53,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-11-06 22:12:53,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 38. [2023-11-06 22:12:53,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 29 states have (on average 1.103448275862069) internal successors, (32), 30 states have internal predecessors, (32), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-06 22:12:53,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2023-11-06 22:12:53,769 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 31 [2023-11-06 22:12:53,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:53,770 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2023-11-06 22:12:53,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 20 states have internal predecessors, (55), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 22:12:53,770 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2023-11-06 22:12:53,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-06 22:12:53,771 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:53,772 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:53,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:12:53,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:53,979 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:12:53,979 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:53,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1600492123, now seen corresponding path program 1 times [2023-11-06 22:12:53,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:53,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505292680] [2023-11-06 22:12:53,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:53,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:54,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:12:54,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:54,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-06 22:12:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:54,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-06 22:12:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:54,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:12:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:54,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 22:12:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:54,202 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-06 22:12:54,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:54,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505292680] [2023-11-06 22:12:54,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505292680] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:12:54,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478904115] [2023-11-06 22:12:54,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:54,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:54,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:12:54,205 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:12:54,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:12:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:54,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:12:54,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:12:54,416 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-06 22:12:54,416 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:12:54,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478904115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:54,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:12:54,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2023-11-06 22:12:54,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985412829] [2023-11-06 22:12:54,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:54,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:12:54,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:54,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:12:54,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:12:54,421 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-06 22:12:54,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:54,546 INFO L93 Difference]: Finished difference Result 66 states and 74 transitions. [2023-11-06 22:12:54,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:12:54,547 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 44 [2023-11-06 22:12:54,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:54,548 INFO L225 Difference]: With dead ends: 66 [2023-11-06 22:12:54,548 INFO L226 Difference]: Without dead ends: 42 [2023-11-06 22:12:54,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:12:54,552 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 14 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:54,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 133 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:12:54,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-06 22:12:54,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2023-11-06 22:12:54,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 30 states have (on average 1.1) internal successors, (33), 31 states have internal predecessors, (33), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-06 22:12:54,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2023-11-06 22:12:54,568 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 44 [2023-11-06 22:12:54,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:54,569 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2023-11-06 22:12:54,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-06 22:12:54,569 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2023-11-06 22:12:54,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-06 22:12:54,571 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:54,571 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:54,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:12:54,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:54,777 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:12:54,778 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:54,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1468385312, now seen corresponding path program 1 times [2023-11-06 22:12:54,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:54,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104461033] [2023-11-06 22:12:54,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:54,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:54,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:12:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:54,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-06 22:12:54,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:54,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 22:12:54,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:54,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-06 22:12:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:54,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-06 22:12:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:54,892 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-06 22:12:54,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:54,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104461033] [2023-11-06 22:12:54,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104461033] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:12:54,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851115534] [2023-11-06 22:12:54,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:54,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:54,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:12:54,895 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:12:54,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:12:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:54,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:12:54,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:12:55,009 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-06 22:12:55,009 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:12:55,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851115534] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:55,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:12:55,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-06 22:12:55,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294415056] [2023-11-06 22:12:55,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:55,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:12:55,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:55,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:12:55,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:12:55,011 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-06 22:12:55,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:55,058 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2023-11-06 22:12:55,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:12:55,058 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 48 [2023-11-06 22:12:55,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:55,059 INFO L225 Difference]: With dead ends: 39 [2023-11-06 22:12:55,059 INFO L226 Difference]: Without dead ends: 38 [2023-11-06 22:12:55,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:12:55,060 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 8 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:55,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 119 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:12:55,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-06 22:12:55,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-11-06 22:12:55,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 30 states have (on average 1.0666666666666667) internal successors, (32), 30 states have internal predecessors, (32), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-06 22:12:55,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2023-11-06 22:12:55,071 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 48 [2023-11-06 22:12:55,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:55,072 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2023-11-06 22:12:55,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-06 22:12:55,072 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2023-11-06 22:12:55,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-06 22:12:55,073 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:55,073 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:55,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:12:55,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-06 22:12:55,279 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:12:55,279 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:55,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1724695497, now seen corresponding path program 1 times [2023-11-06 22:12:55,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:55,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762072819] [2023-11-06 22:12:55,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:55,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:55,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:55,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:12:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:55,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-06 22:12:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:55,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 22:12:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:55,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-06 22:12:55,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:55,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-06 22:12:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:55,419 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-06 22:12:55,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:55,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762072819] [2023-11-06 22:12:55,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762072819] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:12:55,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499397430] [2023-11-06 22:12:55,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:55,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:55,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:12:55,422 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:12:55,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:12:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:55,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:12:55,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:12:55,538 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-06 22:12:55,538 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:12:55,598 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-06 22:12:55,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499397430] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:12:55,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:12:55,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-06 22:12:55,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797287157] [2023-11-06 22:12:55,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:12:55,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:12:55,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:55,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:12:55,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:12:55,600 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-06 22:12:55,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:55,700 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2023-11-06 22:12:55,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:12:55,700 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 49 [2023-11-06 22:12:55,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:55,701 INFO L225 Difference]: With dead ends: 57 [2023-11-06 22:12:55,702 INFO L226 Difference]: Without dead ends: 56 [2023-11-06 22:12:55,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:12:55,703 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 10 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:55,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 216 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:12:55,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-06 22:12:55,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-11-06 22:12:55,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 45 states have (on average 1.0444444444444445) internal successors, (47), 45 states have internal predecessors, (47), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-06 22:12:55,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2023-11-06 22:12:55,718 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 49 [2023-11-06 22:12:55,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:55,718 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2023-11-06 22:12:55,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-06 22:12:55,719 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2023-11-06 22:12:55,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-06 22:12:55,720 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:55,720 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:55,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:12:55,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:55,926 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:12:55,926 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:55,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1839834280, now seen corresponding path program 2 times [2023-11-06 22:12:55,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:55,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286169976] [2023-11-06 22:12:55,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:55,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:56,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:12:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:56,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-06 22:12:56,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:56,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 22:12:56,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:56,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-06 22:12:56,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:56,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-06 22:12:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:56,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:12:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:56,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:12:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:56,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-06 22:12:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:56,431 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 41 proven. 20 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-06 22:12:56,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:56,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286169976] [2023-11-06 22:12:56,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286169976] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:12:56,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095386944] [2023-11-06 22:12:56,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:12:56,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:56,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:12:56,434 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:12:56,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:12:56,555 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:12:56,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:12:56,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 22:12:56,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:12:56,891 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 80 proven. 1 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-06 22:12:56,891 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:12:57,124 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 44 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-06 22:12:57,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095386944] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:12:57,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:12:57,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 12] total 30 [2023-11-06 22:12:57,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250039412] [2023-11-06 22:12:57,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:12:57,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-06 22:12:57,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:57,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-06 22:12:57,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=729, Unknown=0, NotChecked=0, Total=870 [2023-11-06 22:12:57,129 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand has 30 states, 30 states have (on average 2.7666666666666666) internal successors, (83), 30 states have internal predecessors, (83), 10 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2023-11-06 22:12:57,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:57,501 INFO L93 Difference]: Finished difference Result 103 states and 117 transitions. [2023-11-06 22:12:57,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:12:57,502 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.7666666666666666) internal successors, (83), 30 states have internal predecessors, (83), 10 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 79 [2023-11-06 22:12:57,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:57,504 INFO L225 Difference]: With dead ends: 103 [2023-11-06 22:12:57,504 INFO L226 Difference]: Without dead ends: 63 [2023-11-06 22:12:57,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 156 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=237, Invalid=1095, Unknown=0, NotChecked=0, Total=1332 [2023-11-06 22:12:57,506 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 52 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:57,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 288 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:12:57,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-06 22:12:57,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 60. [2023-11-06 22:12:57,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 49 states have (on average 1.0408163265306123) internal successors, (51), 49 states have internal predecessors, (51), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-06 22:12:57,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2023-11-06 22:12:57,528 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 79 [2023-11-06 22:12:57,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:57,528 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2023-11-06 22:12:57,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.7666666666666666) internal successors, (83), 30 states have internal predecessors, (83), 10 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2023-11-06 22:12:57,529 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2023-11-06 22:12:57,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-06 22:12:57,533 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:57,533 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:57,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:12:57,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-06 22:12:57,740 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:12:57,740 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:57,740 INFO L85 PathProgramCache]: Analyzing trace with hash -888135603, now seen corresponding path program 3 times [2023-11-06 22:12:57,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:57,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524671619] [2023-11-06 22:12:57,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:57,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:57,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:58,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:12:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:58,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:12:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:58,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:12:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:58,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:12:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:58,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:12:58,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:58,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:12:58,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:58,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-06 22:12:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:58,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-06 22:12:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:58,121 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 42 proven. 19 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-06 22:12:58,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:58,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524671619] [2023-11-06 22:12:58,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524671619] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:12:58,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176470771] [2023-11-06 22:12:58,122 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:12:58,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:58,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:12:58,123 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:12:58,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:12:58,205 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-06 22:12:58,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:12:58,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:12:58,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:12:58,334 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-11-06 22:12:58,334 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:12:58,448 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-11-06 22:12:58,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176470771] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:12:58,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:12:58,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 4, 4] total 19 [2023-11-06 22:12:58,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24117129] [2023-11-06 22:12:58,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:12:58,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-06 22:12:58,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:58,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-06 22:12:58,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2023-11-06 22:12:58,451 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 19 states have internal predecessors, (69), 8 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2023-11-06 22:12:58,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:58,952 INFO L93 Difference]: Finished difference Result 106 states and 121 transitions. [2023-11-06 22:12:58,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-06 22:12:58,952 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 19 states have internal predecessors, (69), 8 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 83 [2023-11-06 22:12:58,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:58,953 INFO L225 Difference]: With dead ends: 106 [2023-11-06 22:12:58,953 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:12:58,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 177 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=214, Invalid=1046, Unknown=0, NotChecked=0, Total=1260 [2023-11-06 22:12:58,955 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 41 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:58,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 241 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:12:58,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:12:58,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:12:58,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:58,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:12:58,957 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 83 [2023-11-06 22:12:58,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:58,957 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:12:58,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 19 states have internal predecessors, (69), 8 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2023-11-06 22:12:58,958 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:12:58,958 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:12:58,960 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-06 22:12:58,961 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-06 22:12:58,961 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-06 22:12:58,961 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-06 22:12:58,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-06 22:12:58,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-06 22:12:58,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-06 22:12:58,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-06 22:12:58,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-06 22:12:59,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-06 22:12:59,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:13:05,247 INFO L899 garLoopResultBuilder]: For program point L35-2(line 35) no Hoare annotation was computed. [2023-11-06 22:13:05,247 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-06 22:13:05,248 INFO L895 garLoopResultBuilder]: At program point L35-4(lines 25 37) the Hoare annotation is: (let ((.cse5 ((as const (Array Int Int)) 0))) (let ((.cse0 (= .cse5 (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|))) (.cse1 (<= |ULTIMATE.start_main_~y~0#1| 2147483646)) (.cse2 (= .cse5 (select |#memory_int| |ULTIMATE.start_main_#t~malloc6#1.base|))) (.cse3 (<= |ULTIMATE.start_main_~n~0#1| 1073741823)) (.cse4 (<= 0 |ULTIMATE.start_main_~n~0#1|))) (or (and .cse0 .cse1 .cse2 (<= 1 |ULTIMATE.start_main_~x~0#1|) .cse3 (<= |ULTIMATE.start_main_~x~0#1| 2147483646) .cse4) (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~x~0#1| 0) .cse4)))) [2023-11-06 22:13:05,248 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2023-11-06 22:13:05,249 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2023-11-06 22:13:05,249 INFO L895 garLoopResultBuilder]: At program point L19(line 19) the Hoare annotation is: (<= |ULTIMATE.start_main_~n~0#1| 2147483647) [2023-11-06 22:13:05,249 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-06 22:13:05,249 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 16 51) the Hoare annotation is: true [2023-11-06 22:13:05,249 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-06 22:13:05,249 INFO L899 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2023-11-06 22:13:05,249 INFO L899 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2023-11-06 22:13:05,250 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:13:05,250 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2023-11-06 22:13:05,250 INFO L899 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2023-11-06 22:13:05,250 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-11-06 22:13:05,250 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:13:05,250 INFO L899 garLoopResultBuilder]: For program point L45-2(lines 45 47) no Hoare annotation was computed. [2023-11-06 22:13:05,250 INFO L899 garLoopResultBuilder]: For program point L45-3(line 45) no Hoare annotation was computed. [2023-11-06 22:13:05,250 INFO L899 garLoopResultBuilder]: For program point L45-4(line 45) no Hoare annotation was computed. [2023-11-06 22:13:05,251 INFO L895 garLoopResultBuilder]: At program point L45-5(lines 45 47) the Hoare annotation is: (let ((.cse7 ((as const (Array Int Int)) 0))) (let ((.cse0 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse1 (= .cse7 (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|))) (.cse2 (<= |ULTIMATE.start_main_~y~0#1| 2147483646)) (.cse3 (= .cse7 (select |#memory_int| |ULTIMATE.start_main_#t~malloc6#1.base|))) (.cse4 (<= |ULTIMATE.start_main_~n~0#1| 1073741823)) (.cse5 (<= |ULTIMATE.start_main_~x~0#1| 2147483646)) (.cse6 (<= 0 |ULTIMATE.start_main_~n~0#1|))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6)))) [2023-11-06 22:13:05,251 INFO L899 garLoopResultBuilder]: For program point L45-6(lines 45 47) no Hoare annotation was computed. [2023-11-06 22:13:05,251 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2023-11-06 22:13:05,251 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:13:05,251 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-11-06 22:13:05,252 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 25 37) no Hoare annotation was computed. [2023-11-06 22:13:05,252 INFO L895 garLoopResultBuilder]: At program point L46(line 46) the Hoare annotation is: (let ((.cse7 ((as const (Array Int Int)) 0))) (let ((.cse0 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse1 (= .cse7 (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|))) (.cse2 (<= |ULTIMATE.start_main_~y~0#1| 2147483646)) (.cse3 (= .cse7 (select |#memory_int| |ULTIMATE.start_main_#t~malloc6#1.base|))) (.cse4 (<= |ULTIMATE.start_main_~n~0#1| 1073741823)) (.cse5 (<= |ULTIMATE.start_main_~x~0#1| 2147483646)) (.cse6 (<= 0 |ULTIMATE.start_main_~n~0#1|))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse1 .cse2 .cse3 (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse4 .cse5 .cse6)))) [2023-11-06 22:13:05,252 INFO L899 garLoopResultBuilder]: For program point L46-1(line 46) no Hoare annotation was computed. [2023-11-06 22:13:05,252 INFO L895 garLoopResultBuilder]: At program point L42(line 42) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) (<= |ULTIMATE.start_main_~y~0#1| 2147483646) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc6#1.base|)) (<= |ULTIMATE.start_main_~n~0#1| 1073741823) (<= |ULTIMATE.start_main_~x~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~n~0#1|))) [2023-11-06 22:13:05,267 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:13:05,267 INFO L899 garLoopResultBuilder]: For program point L42-1(line 42) no Hoare annotation was computed. [2023-11-06 22:13:05,267 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-06 22:13:05,268 INFO L895 garLoopResultBuilder]: At program point L43(line 43) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) (<= |ULTIMATE.start_main_~y~0#1| 2147483646) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc6#1.base|)) (<= |ULTIMATE.start_main_~n~0#1| 1073741823) (<= |ULTIMATE.start_main_~x~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~n~0#1|))) [2023-11-06 22:13:05,268 INFO L899 garLoopResultBuilder]: For program point L43-1(line 43) no Hoare annotation was computed. [2023-11-06 22:13:05,268 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-06 22:13:05,269 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 36) no Hoare annotation was computed. [2023-11-06 22:13:05,269 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2023-11-06 22:13:05,269 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7 9) the Hoare annotation is: true [2023-11-06 22:13:05,269 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2023-11-06 22:13:05,270 INFO L899 garLoopResultBuilder]: For program point L8-2(lines 7 9) no Hoare annotation was computed. [2023-11-06 22:13:05,270 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 7 9) no Hoare annotation was computed. [2023-11-06 22:13:05,270 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2023-11-06 22:13:05,270 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 10 12) no Hoare annotation was computed. [2023-11-06 22:13:05,270 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 10 12) the Hoare annotation is: true [2023-11-06 22:13:05,270 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 10 12) no Hoare annotation was computed. [2023-11-06 22:13:05,271 INFO L899 garLoopResultBuilder]: For program point L5(line 5) no Hoare annotation was computed. [2023-11-06 22:13:05,274 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:13:05,277 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:13:05,286 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:264) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:401) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:455) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:191) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-06 22:13:05,293 INFO L158 Benchmark]: Toolchain (without parser) took 16340.35ms. Allocated memory was 192.9MB in the beginning and 417.3MB in the end (delta: 224.4MB). Free memory was 153.6MB in the beginning and 384.8MB in the end (delta: -231.2MB). Peak memory consumption was 247.4MB. Max. memory is 16.1GB. [2023-11-06 22:13:05,294 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 192.9MB. Free memory is still 168.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:13:05,294 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.69ms. Allocated memory is still 192.9MB. Free memory was 153.6MB in the beginning and 143.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:13:05,295 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.28ms. Allocated memory is still 192.9MB. Free memory was 142.6MB in the beginning and 141.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:13:05,296 INFO L158 Benchmark]: Boogie Preprocessor took 55.80ms. Allocated memory is still 192.9MB. Free memory was 141.0MB in the beginning and 140.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:13:05,296 INFO L158 Benchmark]: RCFGBuilder took 379.16ms. Allocated memory is still 192.9MB. Free memory was 140.0MB in the beginning and 126.9MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:13:05,297 INFO L158 Benchmark]: TraceAbstraction took 15518.34ms. Allocated memory was 192.9MB in the beginning and 417.3MB in the end (delta: 224.4MB). Free memory was 125.9MB in the beginning and 384.8MB in the end (delta: -259.0MB). Peak memory consumption was 220.2MB. Max. memory is 16.1GB. [2023-11-06 22:13:05,300 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 192.9MB. Free memory is still 168.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.69ms. Allocated memory is still 192.9MB. Free memory was 153.6MB in the beginning and 143.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.28ms. Allocated memory is still 192.9MB. Free memory was 142.6MB in the beginning and 141.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.80ms. Allocated memory is still 192.9MB. Free memory was 141.0MB in the beginning and 140.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 379.16ms. Allocated memory is still 192.9MB. Free memory was 140.0MB in the beginning and 126.9MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 15518.34ms. Allocated memory was 192.9MB in the beginning and 417.3MB in the end (delta: 224.4MB). Free memory was 125.9MB in the beginning and 384.8MB in the end (delta: -259.0MB). Peak memory consumption was 220.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 45 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 15.4s, OverallIterations: 13, TraceHistogramMax: 6, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 539 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 515 mSDsluCounter, 2247 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1760 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1124 IncrementalHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 487 mSDtfsCounter, 1124 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 851 GetRequests, 668 SyntacticMatches, 6 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1068 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=12, InterpolantAutomatonStates: 110, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 221 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 39 PreInvPairs, 77 NumberOfFragments, 245 HoareAnnotationTreeSize, 39 FomulaSimplifications, 69721 FormulaSimplificationTreeSizeReduction, 4.8s HoareSimplificationTime, 9 FomulaSimplificationsInter, 17371 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 824 NumberOfCodeBlocks, 763 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 1059 ConstructedInterpolants, 0 QuantifiedInterpolants, 2414 SizeOfPredicates, 28 NumberOfNonLiveVariables, 1007 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 882/1066 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:264) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-06 22:13:05,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:13:08,100 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:13:08,227 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2023-11-06 22:13:08,235 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:13:08,236 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:13:08,279 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:13:08,280 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:13:08,280 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:13:08,281 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:13:08,287 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:13:08,288 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:13:08,288 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:13:08,289 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:13:08,291 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:13:08,291 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:13:08,292 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:13:08,292 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:13:08,293 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:13:08,293 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:13:08,294 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:13:08,295 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:13:08,295 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:13:08,296 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:13:08,296 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:13:08,297 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:13:08,297 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:13:08,297 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:13:08,298 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:13:08,298 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:13:08,299 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:13:08,300 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:13:08,301 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:13:08,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:13:08,302 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:13:08,302 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:13:08,302 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:13:08,303 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:13:08,303 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:13:08,303 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:13:08,305 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:13:08,305 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:13:08,305 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:13:08,306 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:13:08,306 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:13:08,307 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_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e [2023-11-06 22:13:08,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:13:08,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:13:08,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:13:08,755 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:13:08,755 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:13:08,756 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/verifythis/elimination_max.c [2023-11-06 22:13:11,953 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:13:12,291 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:13:12,291 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/sv-benchmarks/c/verifythis/elimination_max.c [2023-11-06 22:13:12,299 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/data/2fa4f5972/438b870abb9947aea3e429fd4441aabd/FLAGc5ccc5047 [2023-11-06 22:13:12,315 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/data/2fa4f5972/438b870abb9947aea3e429fd4441aabd [2023-11-06 22:13:12,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:13:12,320 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:13:12,322 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:13:12,322 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:13:12,329 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:13:12,330 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:13:12" (1/1) ... [2023-11-06 22:13:12,331 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7447b187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:12, skipping insertion in model container [2023-11-06 22:13:12,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:13:12" (1/1) ... [2023-11-06 22:13:12,356 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:13:12,552 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:13:12,574 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:13:12,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:13:12,648 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:13:12,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:12 WrapperNode [2023-11-06 22:13:12,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:13:12,651 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:13:12,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:13:12,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:13:12,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:12" (1/1) ... [2023-11-06 22:13:12,691 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:12" (1/1) ... [2023-11-06 22:13:12,731 INFO L138 Inliner]: procedures = 20, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 75 [2023-11-06 22:13:12,732 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:13:12,734 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:13:12,734 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:13:12,734 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:13:12,746 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:12" (1/1) ... [2023-11-06 22:13:12,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:12" (1/1) ... [2023-11-06 22:13:12,758 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:12" (1/1) ... [2023-11-06 22:13:12,758 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:12" (1/1) ... [2023-11-06 22:13:12,780 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:12" (1/1) ... [2023-11-06 22:13:12,787 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:12" (1/1) ... [2023-11-06 22:13:12,794 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:12" (1/1) ... [2023-11-06 22:13:12,796 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:12" (1/1) ... [2023-11-06 22:13:12,800 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:13:12,804 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:13:12,805 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:13:12,805 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:13:12,806 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:12" (1/1) ... [2023-11-06 22:13:12,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:13:12,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:12,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:12,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:13:12,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:13:12,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:13:12,897 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:13:12,897 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:13:12,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:13:12,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 22:13:12,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:13:12,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:13:12,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 22:13:12,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 22:13:12,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:13:13,031 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:13:13,034 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:13:13,392 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:13:13,411 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:13:13,411 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:13:13,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:13:13 BoogieIcfgContainer [2023-11-06 22:13:13,414 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:13:13,417 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:13:13,417 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:13:13,421 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:13:13,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:13:12" (1/3) ... [2023-11-06 22:13:13,422 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b03441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:13:13, skipping insertion in model container [2023-11-06 22:13:13,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:12" (2/3) ... [2023-11-06 22:13:13,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b03441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:13:13, skipping insertion in model container [2023-11-06 22:13:13,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:13:13" (3/3) ... [2023-11-06 22:13:13,426 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2023-11-06 22:13:13,446 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:13:13,447 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-06 22:13:13,509 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:13:13,517 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@3b972392, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:13:13,517 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-06 22:13:13,522 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.5) internal successors, (45), 38 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 22:13:13,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 22:13:13,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:13:13,531 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:13:13,531 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:13:13,537 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:13,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1376423430, now seen corresponding path program 1 times [2023-11-06 22:13:13,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:13:13,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1598298096] [2023-11-06 22:13:13,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:13,552 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:13:13,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:13:13,558 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:13:13,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 22:13:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:13,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:13:13,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:13:13,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:13:13,690 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:13:13,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:13:13,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1598298096] [2023-11-06 22:13:13,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1598298096] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:13:13,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:13:13,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:13:13,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836702889] [2023-11-06 22:13:13,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:13:13,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:13:13,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:13:13,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:13:13,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:13:13,749 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.5) internal successors, (45), 38 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:13:13,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:13:13,782 INFO L93 Difference]: Finished difference Result 82 states and 105 transitions. [2023-11-06 22:13:13,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:13:13,786 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2023-11-06 22:13:13,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:13:13,793 INFO L225 Difference]: With dead ends: 82 [2023-11-06 22:13:13,794 INFO L226 Difference]: Without dead ends: 36 [2023-11-06 22:13:13,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:13:13,804 INFO L413 NwaCegarLoop]: 44 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, 44 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 [2023-11-06 22:13:13,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:13:13,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-06 22:13:13,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-06 22:13:13,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 29 states have internal predecessors, (32), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 22:13:13,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2023-11-06 22:13:13,858 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 10 [2023-11-06 22:13:13,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:13:13,859 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2023-11-06 22:13:13,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:13:13,859 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2023-11-06 22:13:13,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 22:13:13,861 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:13:13,862 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:13:13,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:14,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:13:14,088 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:13:14,090 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:14,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1433681732, now seen corresponding path program 1 times [2023-11-06 22:13:14,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:13:14,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [112605593] [2023-11-06 22:13:14,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:14,095 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:13:14,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:13:14,097 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:13:14,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 22:13:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:14,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:13:14,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:13:14,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:13:14,254 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:13:14,255 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:13:14,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [112605593] [2023-11-06 22:13:14,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [112605593] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:13:14,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:13:14,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:13:14,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83264496] [2023-11-06 22:13:14,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:13:14,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:13:14,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:13:14,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:13:14,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:13:14,290 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:13:14,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:13:14,374 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2023-11-06 22:13:14,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:13:14,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2023-11-06 22:13:14,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:13:14,376 INFO L225 Difference]: With dead ends: 36 [2023-11-06 22:13:14,376 INFO L226 Difference]: Without dead ends: 35 [2023-11-06 22:13:14,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:13:14,378 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 23 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:13:14,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 98 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:13:14,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-06 22:13:14,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-06 22:13:14,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 28 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 22:13:14,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2023-11-06 22:13:14,387 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 10 [2023-11-06 22:13:14,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:13:14,389 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2023-11-06 22:13:14,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:13:14,389 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2023-11-06 22:13:14,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 22:13:14,390 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:13:14,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:13:14,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:14,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:13:14,602 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:13:14,602 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:14,603 INFO L85 PathProgramCache]: Analyzing trace with hash -150082737, now seen corresponding path program 1 times [2023-11-06 22:13:14,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:13:14,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772255938] [2023-11-06 22:13:14,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:14,604 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:13:14,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:13:14,605 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:13:14,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-06 22:13:14,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:14,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:13:14,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:13:14,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:13:14,714 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:13:14,715 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:13:14,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772255938] [2023-11-06 22:13:14,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [772255938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:13:14,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:13:14,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:13:14,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233870792] [2023-11-06 22:13:14,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:13:14,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:13:14,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:13:14,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:13:14,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:13:14,718 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:13:14,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:13:14,858 INFO L93 Difference]: Finished difference Result 74 states and 89 transitions. [2023-11-06 22:13:14,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:13:14,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-11-06 22:13:14,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:13:14,861 INFO L225 Difference]: With dead ends: 74 [2023-11-06 22:13:14,861 INFO L226 Difference]: Without dead ends: 73 [2023-11-06 22:13:14,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:13:14,863 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 42 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:13:14,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 173 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:13:14,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-06 22:13:14,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 44. [2023-11-06 22:13:14,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 37 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 22:13:14,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2023-11-06 22:13:14,876 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 14 [2023-11-06 22:13:14,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:13:14,876 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2023-11-06 22:13:14,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:13:14,877 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2023-11-06 22:13:14,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-06 22:13:14,878 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:13:14,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:13:14,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:15,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:13:15,090 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:13:15,090 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:15,091 INFO L85 PathProgramCache]: Analyzing trace with hash -357603447, now seen corresponding path program 1 times [2023-11-06 22:13:15,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:13:15,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241458172] [2023-11-06 22:13:15,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:15,092 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:13:15,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:13:15,093 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:13:15,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-06 22:13:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:15,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:13:15,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:13:15,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:13:15,214 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:13:15,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:13:15,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241458172] [2023-11-06 22:13:15,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241458172] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:13:15,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:13:15,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:13:15,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582891552] [2023-11-06 22:13:15,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:13:15,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:13:15,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:13:15,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:13:15,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:13:15,218 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:13:15,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:13:15,289 INFO L93 Difference]: Finished difference Result 59 states and 71 transitions. [2023-11-06 22:13:15,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:13:15,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-11-06 22:13:15,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:13:15,292 INFO L225 Difference]: With dead ends: 59 [2023-11-06 22:13:15,292 INFO L226 Difference]: Without dead ends: 58 [2023-11-06 22:13:15,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:13:15,294 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 15 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:13:15,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 98 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:13:15,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-06 22:13:15,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 46. [2023-11-06 22:13:15,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 39 states have internal predecessors, (47), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 22:13:15,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2023-11-06 22:13:15,321 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 15 [2023-11-06 22:13:15,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:13:15,322 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2023-11-06 22:13:15,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:13:15,322 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2023-11-06 22:13:15,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-06 22:13:15,324 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:13:15,324 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:13:15,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-06 22:13:15,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:13:15,535 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:13:15,536 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:15,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1371174098, now seen corresponding path program 1 times [2023-11-06 22:13:15,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:13:15,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396398167] [2023-11-06 22:13:15,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:15,537 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:13:15,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:13:15,539 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:13:15,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-06 22:13:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:15,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:13:15,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:13:15,670 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:13:15,670 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:13:15,852 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:13:15,852 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:13:15,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396398167] [2023-11-06 22:13:15,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396398167] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:13:15,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:13:15,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-06 22:13:15,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851856788] [2023-11-06 22:13:15,854 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:13:15,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:13:15,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:13:15,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:13:15,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:13:15,866 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:13:16,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:13:16,273 INFO L93 Difference]: Finished difference Result 120 states and 155 transitions. [2023-11-06 22:13:16,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:13:16,279 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2023-11-06 22:13:16,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:13:16,281 INFO L225 Difference]: With dead ends: 120 [2023-11-06 22:13:16,281 INFO L226 Difference]: Without dead ends: 119 [2023-11-06 22:13:16,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:13:16,283 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 105 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:13:16,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 253 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:13:16,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-06 22:13:16,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 43. [2023-11-06 22:13:16,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 36 states have internal predecessors, (43), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 22:13:16,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2023-11-06 22:13:16,316 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 19 [2023-11-06 22:13:16,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:13:16,317 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2023-11-06 22:13:16,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:13:16,318 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2023-11-06 22:13:16,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-06 22:13:16,324 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:13:16,324 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:13:16,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:16,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:13:16,538 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:13:16,538 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:16,538 INFO L85 PathProgramCache]: Analyzing trace with hash 963942463, now seen corresponding path program 1 times [2023-11-06 22:13:16,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:13:16,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1392265349] [2023-11-06 22:13:16,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:16,539 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:13:16,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:13:16,541 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:13:16,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-06 22:13:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:16,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:13:16,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:13:16,687 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:13:16,687 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:13:16,772 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-06 22:13:16,772 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:13:16,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1392265349] [2023-11-06 22:13:16,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1392265349] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-06 22:13:16,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:13:16,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2023-11-06 22:13:16,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660488286] [2023-11-06 22:13:16,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:13:16,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:13:16,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:13:16,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:13:16,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:13:16,775 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:13:16,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:13:16,863 INFO L93 Difference]: Finished difference Result 56 states and 68 transitions. [2023-11-06 22:13:16,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:13:16,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2023-11-06 22:13:16,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:13:16,869 INFO L225 Difference]: With dead ends: 56 [2023-11-06 22:13:16,869 INFO L226 Difference]: Without dead ends: 55 [2023-11-06 22:13:16,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:13:16,872 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 16 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:13:16,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 115 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:13:16,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-06 22:13:16,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 33. [2023-11-06 22:13:16,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 22:13:16,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2023-11-06 22:13:16,896 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 22 [2023-11-06 22:13:16,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:13:16,896 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2023-11-06 22:13:16,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:13:16,897 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2023-11-06 22:13:16,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-06 22:13:16,899 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:13:16,899 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:13:16,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-06 22:13:17,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:13:17,111 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:13:17,111 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:17,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1264561129, now seen corresponding path program 1 times [2023-11-06 22:13:17,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:13:17,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [396665942] [2023-11-06 22:13:17,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:17,113 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:13:17,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:13:17,118 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:13:17,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-06 22:13:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:17,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:13:17,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:13:17,252 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-06 22:13:17,253 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:13:17,253 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:13:17,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [396665942] [2023-11-06 22:13:17,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [396665942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:13:17,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:13:17,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:13:17,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090661473] [2023-11-06 22:13:17,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:13:17,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:13:17,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:13:17,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:13:17,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:13:17,262 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-06 22:13:17,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:13:17,326 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2023-11-06 22:13:17,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:13:17,327 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2023-11-06 22:13:17,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:13:17,329 INFO L225 Difference]: With dead ends: 40 [2023-11-06 22:13:17,329 INFO L226 Difference]: Without dead ends: 39 [2023-11-06 22:13:17,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:13:17,332 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 2 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:13:17,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 94 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:13:17,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-06 22:13:17,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-06 22:13:17,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 31 states have (on average 1.096774193548387) internal successors, (34), 31 states have internal predecessors, (34), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-06 22:13:17,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2023-11-06 22:13:17,367 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 35 [2023-11-06 22:13:17,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:13:17,369 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2023-11-06 22:13:17,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-06 22:13:17,369 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2023-11-06 22:13:17,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-06 22:13:17,374 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:13:17,375 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:13:17,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-06 22:13:17,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:13:17,587 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:13:17,588 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:17,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1924351826, now seen corresponding path program 1 times [2023-11-06 22:13:17,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:13:17,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062691615] [2023-11-06 22:13:17,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:17,589 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:13:17,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:13:17,591 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:13:17,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-06 22:13:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:17,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:13:17,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:13:17,753 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-06 22:13:17,753 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:13:17,903 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-06 22:13:17,903 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:13:17,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062691615] [2023-11-06 22:13:17,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062691615] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:13:17,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:13:17,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-06 22:13:17,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453570969] [2023-11-06 22:13:17,908 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:13:17,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:13:17,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:13:17,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:13:17,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:13:17,910 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 5 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-06 22:13:18,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:13:18,207 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2023-11-06 22:13:18,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:13:18,208 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 5 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 45 [2023-11-06 22:13:18,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:13:18,208 INFO L225 Difference]: With dead ends: 52 [2023-11-06 22:13:18,209 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:13:18,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:13:18,210 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 12 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:13:18,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 221 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:13:18,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:13:18,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:13:18,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:18,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:13:18,212 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2023-11-06 22:13:18,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:13:18,212 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:13:18,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 5 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-06 22:13:18,212 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:13:18,212 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:13:18,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-06 22:13:18,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-06 22:13:18,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-06 22:13:18,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-06 22:13:18,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-06 22:13:18,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-06 22:13:18,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-06 22:13:18,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-06 22:13:18,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:18,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:13:18,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:13:19,895 INFO L899 garLoopResultBuilder]: For program point L35-2(line 35) no Hoare annotation was computed. [2023-11-06 22:13:19,896 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-06 22:13:19,896 INFO L895 garLoopResultBuilder]: At program point L35-4(lines 25 37) the Hoare annotation is: (and (bvsge |ULTIMATE.start_main_~n~0#1| (_ bv0 32)) (bvslt |ULTIMATE.start_main_~n~0#1| (_ bv1073741824 32))) [2023-11-06 22:13:19,896 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2023-11-06 22:13:19,896 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2023-11-06 22:13:19,897 INFO L902 garLoopResultBuilder]: At program point L19(line 19) the Hoare annotation is: true [2023-11-06 22:13:19,897 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-06 22:13:19,897 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 16 51) the Hoare annotation is: true [2023-11-06 22:13:19,897 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-06 22:13:19,897 INFO L899 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2023-11-06 22:13:19,897 INFO L899 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2023-11-06 22:13:19,897 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:13:19,898 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2023-11-06 22:13:19,898 INFO L899 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2023-11-06 22:13:19,898 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-11-06 22:13:19,898 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:13:19,898 INFO L899 garLoopResultBuilder]: For program point L45-2(lines 45 47) no Hoare annotation was computed. [2023-11-06 22:13:19,898 INFO L899 garLoopResultBuilder]: For program point L45-3(line 45) no Hoare annotation was computed. [2023-11-06 22:13:19,898 INFO L899 garLoopResultBuilder]: For program point L45-4(line 45) no Hoare annotation was computed. [2023-11-06 22:13:19,899 INFO L895 garLoopResultBuilder]: At program point L45-5(lines 45 47) the Hoare annotation is: (and (bvsge |ULTIMATE.start_main_~n~0#1| (_ bv0 32)) (bvslt |ULTIMATE.start_main_~n~0#1| (_ bv1073741824 32))) [2023-11-06 22:13:19,899 INFO L899 garLoopResultBuilder]: For program point L45-6(lines 45 47) no Hoare annotation was computed. [2023-11-06 22:13:19,899 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2023-11-06 22:13:19,899 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:13:19,899 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-11-06 22:13:19,899 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 25 37) no Hoare annotation was computed. [2023-11-06 22:13:19,900 INFO L895 garLoopResultBuilder]: At program point L46(line 46) the Hoare annotation is: (and (bvsge |ULTIMATE.start_main_~n~0#1| (_ bv0 32)) (bvslt |ULTIMATE.start_main_~n~0#1| (_ bv1073741824 32)) (bvsle (bvadd ((_ sign_extend 1) |ULTIMATE.start_main_~i~0#1|) (_ bv1 33)) (_ bv2147483647 33))) [2023-11-06 22:13:19,900 INFO L899 garLoopResultBuilder]: For program point L46-1(line 46) no Hoare annotation was computed. [2023-11-06 22:13:19,900 INFO L895 garLoopResultBuilder]: At program point L42(line 42) the Hoare annotation is: (and (bvsge |ULTIMATE.start_main_~n~0#1| (_ bv0 32)) (bvslt |ULTIMATE.start_main_~n~0#1| (_ bv1073741824 32))) [2023-11-06 22:13:19,900 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:13:19,900 INFO L899 garLoopResultBuilder]: For program point L42-1(line 42) no Hoare annotation was computed. [2023-11-06 22:13:19,900 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-06 22:13:19,901 INFO L895 garLoopResultBuilder]: At program point L43(line 43) the Hoare annotation is: (and (bvsge |ULTIMATE.start_main_~n~0#1| (_ bv0 32)) (bvslt |ULTIMATE.start_main_~n~0#1| (_ bv1073741824 32))) [2023-11-06 22:13:19,901 INFO L899 garLoopResultBuilder]: For program point L43-1(line 43) no Hoare annotation was computed. [2023-11-06 22:13:19,901 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-06 22:13:19,901 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 36) no Hoare annotation was computed. [2023-11-06 22:13:19,901 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2023-11-06 22:13:19,901 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7 9) the Hoare annotation is: true [2023-11-06 22:13:19,902 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2023-11-06 22:13:19,903 INFO L899 garLoopResultBuilder]: For program point L8-2(lines 7 9) no Hoare annotation was computed. [2023-11-06 22:13:19,903 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 7 9) no Hoare annotation was computed. [2023-11-06 22:13:19,903 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2023-11-06 22:13:19,903 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 10 12) no Hoare annotation was computed. [2023-11-06 22:13:19,903 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 10 12) the Hoare annotation is: true [2023-11-06 22:13:19,904 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 10 12) no Hoare annotation was computed. [2023-11-06 22:13:19,904 INFO L899 garLoopResultBuilder]: For program point L5(line 5) no Hoare annotation was computed. [2023-11-06 22:13:19,908 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:13:19,911 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:13:19,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:13:19 BoogieIcfgContainer [2023-11-06 22:13:19,924 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:13:19,925 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:13:19,925 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:13:19,925 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:13:19,926 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:13:13" (3/4) ... [2023-11-06 22:13:19,928 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:13:19,933 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-06 22:13:19,934 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-06 22:13:19,939 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-06 22:13:19,940 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:13:19,940 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:13:19,940 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:13:20,007 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:13:20,008 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:13:20,008 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:13:20,009 INFO L158 Benchmark]: Toolchain (without parser) took 7689.03ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 86.9MB in the beginning and 100.8MB in the end (delta: -13.9MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2023-11-06 22:13:20,010 INFO L158 Benchmark]: CDTParser took 1.32ms. Allocated memory is still 81.8MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:13:20,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.14ms. Allocated memory is still 111.1MB. Free memory was 86.6MB in the beginning and 75.3MB in the end (delta: 11.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 22:13:20,010 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.02ms. Allocated memory is still 111.1MB. Free memory was 75.3MB in the beginning and 73.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:13:20,011 INFO L158 Benchmark]: Boogie Preprocessor took 69.28ms. Allocated memory is still 111.1MB. Free memory was 73.8MB in the beginning and 72.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:13:20,012 INFO L158 Benchmark]: RCFGBuilder took 610.48ms. Allocated memory is still 111.1MB. Free memory was 72.1MB in the beginning and 87.7MB in the end (delta: -15.6MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2023-11-06 22:13:20,012 INFO L158 Benchmark]: TraceAbstraction took 6506.90ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 87.2MB in the beginning and 105.0MB in the end (delta: -17.8MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. [2023-11-06 22:13:20,012 INFO L158 Benchmark]: Witness Printer took 83.92ms. Allocated memory is still 134.2MB. Free memory was 105.0MB in the beginning and 100.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:13:20,015 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.32ms. Allocated memory is still 81.8MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 328.14ms. Allocated memory is still 111.1MB. Free memory was 86.6MB in the beginning and 75.3MB in the end (delta: 11.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.02ms. Allocated memory is still 111.1MB. Free memory was 75.3MB in the beginning and 73.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 69.28ms. Allocated memory is still 111.1MB. Free memory was 73.8MB in the beginning and 72.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 610.48ms. Allocated memory is still 111.1MB. Free memory was 72.1MB in the beginning and 87.7MB in the end (delta: -15.6MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6506.90ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 87.2MB in the beginning and 105.0MB in the end (delta: -17.8MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. * Witness Printer took 83.92ms. Allocated memory is still 134.2MB. Free memory was 105.0MB in the beginning and 100.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 45 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 239 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 215 mSDsluCounter, 1096 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 769 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 258 IncrementalHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 327 mSDtfsCounter, 258 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 262 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=4, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 139 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 17 PreInvPairs, 30 NumberOfFragments, 45 HoareAnnotationTreeSize, 17 FomulaSimplifications, 2992 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 9 FomulaSimplificationsInter, 4557 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 170 NumberOfCodeBlocks, 170 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 245 ConstructedInterpolants, 0 QuantifiedInterpolants, 519 SizeOfPredicates, 13 NumberOfNonLiveVariables, 455 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 48/74 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: ((n >= 0) && (n < 1073741824)) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: ((n >= 0) && (n < 1073741824)) RESULT: Ultimate proved your program to be correct! [2023-11-06 22:13:20,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc70915-d254-4cd5-8dbd-3c2e088a0c04/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE