./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9946b8f2044511113ae8f74201f189348f6c8338b35f7642acfb4580613f868c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:42:48,324 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:42:48,478 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:42:48,494 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:42:48,495 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:42:48,532 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:42:48,533 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:42:48,534 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:42:48,535 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:42:48,542 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:42:48,543 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:42:48,543 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:42:48,544 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:42:48,546 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:42:48,547 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:42:48,547 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:42:48,548 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:42:48,548 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:42:48,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:42:48,549 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:42:48,550 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:42:48,551 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:42:48,551 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:42:48,552 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:42:48,552 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:42:48,553 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:42:48,556 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:42:48,556 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:42:48,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:42:48,558 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:42:48,559 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:42:48,560 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:42:48,560 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:42:48,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:42:48,561 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:42:48,561 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:42:48,561 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:42:48,562 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:42:48,562 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:42:48,563 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_b949021f-0c9c-4958-ac26-66660f7e993e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9946b8f2044511113ae8f74201f189348f6c8338b35f7642acfb4580613f868c [2023-11-06 22:42:48,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:42:48,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:42:48,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:42:48,987 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:42:48,988 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:42:48,990 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i [2023-11-06 22:42:52,781 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:42:53,045 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:42:53,046 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i [2023-11-06 22:42:53,056 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/data/52de19020/7841248e65794cd1a1089a09a1524e2c/FLAGba184f77d [2023-11-06 22:42:53,073 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/data/52de19020/7841248e65794cd1a1089a09a1524e2c [2023-11-06 22:42:53,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:42:53,078 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:42:53,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:42:53,080 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:42:53,088 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:42:53,089 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:42:53" (1/1) ... [2023-11-06 22:42:53,090 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f38549a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:53, skipping insertion in model container [2023-11-06 22:42:53,091 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:42:53" (1/1) ... [2023-11-06 22:42:53,129 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:42:53,375 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i[913,926] [2023-11-06 22:42:53,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:42:53,498 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:42:53,520 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i[913,926] [2023-11-06 22:42:53,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:42:53,606 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:42:53,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:53 WrapperNode [2023-11-06 22:42:53,607 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:42:53,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:42:53,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:42:53,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:42:53,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:53" (1/1) ... [2023-11-06 22:42:53,631 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:53" (1/1) ... [2023-11-06 22:42:53,679 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2023-11-06 22:42:53,680 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:42:53,686 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:42:53,687 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:42:53,687 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:42:53,699 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:53" (1/1) ... [2023-11-06 22:42:53,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:53" (1/1) ... [2023-11-06 22:42:53,705 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:53" (1/1) ... [2023-11-06 22:42:53,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:53" (1/1) ... [2023-11-06 22:42:53,725 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:53" (1/1) ... [2023-11-06 22:42:53,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:53" (1/1) ... [2023-11-06 22:42:53,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:53" (1/1) ... [2023-11-06 22:42:53,745 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:53" (1/1) ... [2023-11-06 22:42:53,748 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:42:53,755 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:42:53,756 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:42:53,756 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:42:53,757 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:53" (1/1) ... [2023-11-06 22:42:53,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:42:53,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:53,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:53,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:42:53,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:42:53,882 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:42:53,882 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:42:53,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:42:53,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:42:53,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:42:54,012 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:42:54,015 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:42:54,525 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:42:54,534 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:42:54,536 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:42:54,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:42:54 BoogieIcfgContainer [2023-11-06 22:42:54,540 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:42:54,548 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:42:54,549 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:42:54,553 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:42:54,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:42:53" (1/3) ... [2023-11-06 22:42:54,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5caf4a19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:42:54, skipping insertion in model container [2023-11-06 22:42:54,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:53" (2/3) ... [2023-11-06 22:42:54,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5caf4a19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:42:54, skipping insertion in model container [2023-11-06 22:42:54,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:42:54" (3/3) ... [2023-11-06 22:42:54,561 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-69.i [2023-11-06 22:42:54,590 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:42:54,590 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:42:54,662 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:42:54,673 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;@5208032a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:42:54,674 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:42:54,682 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:42:54,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-06 22:42:54,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:42:54,703 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:42:54,704 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:42:54,712 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:54,713 INFO L85 PathProgramCache]: Analyzing trace with hash 18237889, now seen corresponding path program 1 times [2023-11-06 22:42:54,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:54,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197616453] [2023-11-06 22:42:54,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:54,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:55,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:42:55,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197616453] [2023-11-06 22:42:55,024 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-06 22:42:55,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795519112] [2023-11-06 22:42:55,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:55,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:42:55,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:55,030 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:42:55,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:42:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:55,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:42:55,315 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:55,376 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2023-11-06 22:42:55,377 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:42:55,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795519112] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:42:55,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:42:55,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:42:55,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28017412] [2023-11-06 22:42:55,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:42:55,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:42:55,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:42:55,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:42:55,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:42:55,432 INFO L87 Difference]: Start difference. First operand has 52 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-06 22:42:55,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:42:55,468 INFO L93 Difference]: Finished difference Result 97 states and 163 transitions. [2023-11-06 22:42:55,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:42:55,474 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2023-11-06 22:42:55,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:42:55,483 INFO L225 Difference]: With dead ends: 97 [2023-11-06 22:42:55,484 INFO L226 Difference]: Without dead ends: 48 [2023-11-06 22:42:55,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 96 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 22:42:55,493 INFO L413 NwaCegarLoop]: 70 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, 70 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 22:42:55,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:42:55,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-06 22:42:55,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-06 22:42:55,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:42:55,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 70 transitions. [2023-11-06 22:42:55,564 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 70 transitions. Word has length 97 [2023-11-06 22:42:55,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:42:55,565 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 70 transitions. [2023-11-06 22:42:55,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-06 22:42:55,566 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 70 transitions. [2023-11-06 22:42:55,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-06 22:42:55,573 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:42:55,573 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:42:55,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:55,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-06 22:42:55,783 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:42:55,786 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:55,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1234104317, now seen corresponding path program 1 times [2023-11-06 22:42:55,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:55,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612332989] [2023-11-06 22:42:55,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:55,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:55,926 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:42:55,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1676129961] [2023-11-06 22:42:55,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:55,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:42:55,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:55,930 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:42:55,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:42:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:56,239 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:56,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:56,414 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:56,414 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:42:56,416 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:42:56,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:56,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:42:56,633 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 22:42:56,638 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:42:56,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:42:56 BoogieIcfgContainer [2023-11-06 22:42:56,808 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:42:56,809 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:42:56,809 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:42:56,810 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:42:56,811 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:42:54" (3/4) ... [2023-11-06 22:42:56,814 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:42:56,816 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:42:56,818 INFO L158 Benchmark]: Toolchain (without parser) took 3738.49ms. Allocated memory was 155.2MB in the beginning and 207.6MB in the end (delta: 52.4MB). Free memory was 112.7MB in the beginning and 140.6MB in the end (delta: -28.0MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2023-11-06 22:42:56,826 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 155.2MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:42:56,827 INFO L158 Benchmark]: CACSL2BoogieTranslator took 527.71ms. Allocated memory is still 155.2MB. Free memory was 112.1MB in the beginning and 100.1MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:42:56,828 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.25ms. Allocated memory is still 155.2MB. Free memory was 100.1MB in the beginning and 98.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:42:56,829 INFO L158 Benchmark]: Boogie Preprocessor took 68.18ms. Allocated memory is still 155.2MB. Free memory was 98.5MB in the beginning and 96.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:42:56,830 INFO L158 Benchmark]: RCFGBuilder took 786.86ms. Allocated memory is still 155.2MB. Free memory was 96.9MB in the beginning and 81.8MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 22:42:56,830 INFO L158 Benchmark]: TraceAbstraction took 2260.05ms. Allocated memory was 155.2MB in the beginning and 207.6MB in the end (delta: 52.4MB). Free memory was 81.2MB in the beginning and 140.6MB in the end (delta: -59.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:42:56,835 INFO L158 Benchmark]: Witness Printer took 6.88ms. Allocated memory is still 207.6MB. Free memory is still 140.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:42:56,841 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 155.2MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 527.71ms. Allocated memory is still 155.2MB. Free memory was 112.1MB in the beginning and 100.1MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.25ms. Allocated memory is still 155.2MB. Free memory was 100.1MB in the beginning and 98.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 68.18ms. Allocated memory is still 155.2MB. Free memory was 98.5MB in the beginning and 96.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 786.86ms. Allocated memory is still 155.2MB. Free memory was 96.9MB in the beginning and 81.8MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2260.05ms. Allocated memory was 155.2MB in the beginning and 207.6MB in the end (delta: 52.4MB). Free memory was 81.2MB in the beginning and 140.6MB in the end (delta: -59.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.88ms. Allocated memory is still 207.6MB. Free memory is still 140.6MB. There was no memory consumed. 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 102. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -100; [L23] unsigned long int var_1_2 = 0; [L24] unsigned long int var_1_3 = 8; [L25] unsigned long int var_1_4 = 256; [L26] unsigned long int var_1_5 = 500; [L27] signed char var_1_7 = -64; [L28] signed char var_1_8 = -8; [L29] unsigned char var_1_9 = 0; [L30] unsigned char var_1_10 = 0; [L31] double var_1_11 = 4.625; [L32] double var_1_13 = 15.5; VAL [isInitial=0, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_2=0, var_1_3=8, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L106] isInitial = 1 [L107] FCALL initially() [L108] COND TRUE 1 [L109] FCALL updateLastVariables() [L110] CALL updateVariables() [L75] var_1_2 = __VERIFIER_nondet_ulong() [L76] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=8, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=8, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L76] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=8, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L77] CALL assume_abort_if_not(var_1_2 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=8, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=8, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L77] RET assume_abort_if_not(var_1_2 <= 4294967295) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=8, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L78] var_1_3 = __VERIFIER_nondet_ulong() [L79] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L79] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L80] CALL assume_abort_if_not(var_1_3 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L80] RET assume_abort_if_not(var_1_3 <= 4294967295) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L81] var_1_4 = __VERIFIER_nondet_ulong() [L82] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L82] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L83] CALL assume_abort_if_not(var_1_4 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L83] RET assume_abort_if_not(var_1_4 <= 4294967295) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L84] var_1_5 = __VERIFIER_nondet_ulong() [L85] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=-8, var_1_9=0] [L85] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=-8, var_1_9=0] [L86] CALL assume_abort_if_not(var_1_5 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=-8, var_1_9=0] [L86] RET assume_abort_if_not(var_1_5 <= 4294967295) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=-8, var_1_9=0] [L87] var_1_8 = __VERIFIER_nondet_char() [L88] CALL assume_abort_if_not(var_1_8 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=0, var_1_9=0] [L88] RET assume_abort_if_not(var_1_8 >= -127) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=0, var_1_9=0] [L89] CALL assume_abort_if_not(var_1_8 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=0, var_1_9=0] [L89] RET assume_abort_if_not(var_1_8 <= 126) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=0, var_1_9=0] [L90] var_1_9 = __VERIFIER_nondet_uchar() [L91] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=0, var_1_9=0] [L91] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=0, var_1_9=0] [L92] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=0, var_1_9=0] [L92] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=0, var_1_9=0] [L93] var_1_10 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=0, var_1_9=0] [L94] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=0, var_1_9=0] [L95] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=0, var_1_9=0] [L95] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=0, var_1_9=0] [L96] var_1_13 = __VERIFIER_nondet_double() [L97] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=0, var_1_9=0] [L97] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=2, var_1_1=-100, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=-64, var_1_8=0, var_1_9=0] [L110] RET updateVariables() [L111] CALL step() [L36] COND TRUE var_1_2 < (((((var_1_4 * var_1_5)) > (var_1_3)) ? ((var_1_4 * var_1_5)) : (var_1_3))) [L37] var_1_7 = var_1_8 VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=2, var_1_1=-100, var_1_2=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] [L49] unsigned long int stepLocal_1 = var_1_5; [L50] unsigned long int stepLocal_0 = var_1_2 * ((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4))); VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, var_1_10=0, var_1_11=37/8, var_1_13=2, var_1_1=-100, var_1_2=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] [L51] COND FALSE !(stepLocal_0 < var_1_5) VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, var_1_10=0, var_1_11=37/8, var_1_13=2, var_1_1=-100, var_1_2=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] [L58] unsigned char stepLocal_3 = var_1_9; [L59] signed long int stepLocal_2 = var_1_1 + var_1_7; VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, stepLocal_2=-100, stepLocal_3=0, var_1_10=0, var_1_11=37/8, var_1_13=2, var_1_1=-100, var_1_2=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] [L60] COND FALSE !(((var_1_7 + var_1_8) == var_1_4) && stepLocal_3) [L71] var_1_11 = var_1_13 VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, stepLocal_2=-100, stepLocal_3=0, var_1_10=0, var_1_11=2, var_1_13=2, var_1_1=-100, var_1_2=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] [L111] RET step() [L112] CALL, EXPR property() [L102-L103] return ((((var_1_2 * ((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4)))) < var_1_5) ? ((var_1_5 > var_1_2) ? (var_1_1 == ((signed short int) var_1_7)) : (var_1_1 == ((signed short int) var_1_7))) : 1) && ((var_1_2 < (((((var_1_4 * var_1_5)) > (var_1_3)) ? ((var_1_4 * var_1_5)) : (var_1_3)))) ? (var_1_7 == ((signed char) var_1_8)) : ((var_1_9 || var_1_10) ? (var_1_7 == ((signed char) var_1_8)) : ((var_1_3 < var_1_4) ? (var_1_7 == ((signed char) var_1_8)) : (var_1_7 == ((signed char) -4)))))) && ((((var_1_7 + var_1_8) == var_1_4) && var_1_9) ? ((! var_1_10) ? (((var_1_1 + var_1_7) != var_1_8) ? (var_1_11 == ((double) var_1_13)) : (var_1_11 == ((double) var_1_13))) : (var_1_11 == ((double) var_1_13))) : (var_1_11 == ((double) var_1_13))) ; VAL [\result=0, isInitial=1, var_1_10=0, var_1_11=2, var_1_13=2, var_1_1=-100, var_1_2=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] [L112] RET, EXPR property() [L112] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=2, var_1_13=2, var_1_1=-100, var_1_2=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=2, var_1_13=2, var_1_1=-100, var_1_2=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 2, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 70 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 70 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 291 NumberOfCodeBlocks, 291 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 SizeOfPredicates, 0 NumberOfNonLiveVariables, 230 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 420/420 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-06 22:42:56,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9946b8f2044511113ae8f74201f189348f6c8338b35f7642acfb4580613f868c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:43:00,274 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:43:00,385 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 22:43:00,393 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:43:00,394 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:43:00,431 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:43:00,432 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:43:00,433 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:43:00,434 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:43:00,435 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:43:00,436 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:43:00,437 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:43:00,437 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:43:00,438 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:43:00,439 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:43:00,440 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:43:00,440 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:43:00,441 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:43:00,442 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:43:00,443 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:43:00,443 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:43:00,444 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:43:00,445 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:43:00,446 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:43:00,446 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:43:00,447 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:43:00,448 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:43:00,449 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:43:00,450 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:43:00,450 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:43:00,451 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:43:00,452 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:43:00,452 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:43:00,453 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:43:00,454 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:43:00,454 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:43:00,455 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:43:00,456 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:43:00,456 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:43:00,457 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:43:00,458 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:43:00,458 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:43:00,459 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_b949021f-0c9c-4958-ac26-66660f7e993e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9946b8f2044511113ae8f74201f189348f6c8338b35f7642acfb4580613f868c [2023-11-06 22:43:00,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:43:01,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:43:01,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:43:01,014 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:43:01,014 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:43:01,016 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i [2023-11-06 22:43:04,984 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:43:05,269 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:43:05,269 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i [2023-11-06 22:43:05,279 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/data/3f8fc1d2b/4c92bf7639eb4c40b1400050b703b8aa/FLAGc195f5371 [2023-11-06 22:43:05,298 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/data/3f8fc1d2b/4c92bf7639eb4c40b1400050b703b8aa [2023-11-06 22:43:05,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:43:05,303 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:43:05,305 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:43:05,306 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:43:05,312 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:43:05,313 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:43:05" (1/1) ... [2023-11-06 22:43:05,314 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42b33340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:05, skipping insertion in model container [2023-11-06 22:43:05,315 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:43:05" (1/1) ... [2023-11-06 22:43:05,350 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:43:05,537 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i[913,926] [2023-11-06 22:43:05,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:43:05,613 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:43:05,639 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i[913,926] [2023-11-06 22:43:05,682 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:43:05,723 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:43:05,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:05 WrapperNode [2023-11-06 22:43:05,725 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:43:05,727 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:43:05,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:43:05,728 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:43:05,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:05" (1/1) ... [2023-11-06 22:43:05,764 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:05" (1/1) ... [2023-11-06 22:43:05,815 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 106 [2023-11-06 22:43:05,816 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:43:05,817 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:43:05,817 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:43:05,817 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:43:05,827 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:05" (1/1) ... [2023-11-06 22:43:05,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:05" (1/1) ... [2023-11-06 22:43:05,832 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:05" (1/1) ... [2023-11-06 22:43:05,833 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:05" (1/1) ... [2023-11-06 22:43:05,847 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:05" (1/1) ... [2023-11-06 22:43:05,859 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:05" (1/1) ... [2023-11-06 22:43:05,863 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:05" (1/1) ... [2023-11-06 22:43:05,876 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:05" (1/1) ... [2023-11-06 22:43:05,880 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:43:05,881 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:43:05,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:43:05,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:43:05,886 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:05" (1/1) ... [2023-11-06 22:43:05,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:43:05,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:43:05,931 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:43:05,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:43:05,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:43:05,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:43:05,995 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:43:05,995 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:43:05,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:43:05,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:43:06,149 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:43:06,152 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:43:06,742 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:43:06,751 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:43:06,751 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:43:06,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:43:06 BoogieIcfgContainer [2023-11-06 22:43:06,755 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:43:06,758 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:43:06,759 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:43:06,763 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:43:06,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:43:05" (1/3) ... [2023-11-06 22:43:06,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f00d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:43:06, skipping insertion in model container [2023-11-06 22:43:06,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:05" (2/3) ... [2023-11-06 22:43:06,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f00d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:43:06, skipping insertion in model container [2023-11-06 22:43:06,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:43:06" (3/3) ... [2023-11-06 22:43:06,768 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-69.i [2023-11-06 22:43:06,793 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:43:06,794 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:43:06,864 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:43:06,873 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;@3b07870c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:43:06,874 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:43:06,880 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:43:06,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-06 22:43:06,897 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:06,898 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:43:06,899 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:43:06,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:06,908 INFO L85 PathProgramCache]: Analyzing trace with hash 18237889, now seen corresponding path program 1 times [2023-11-06 22:43:06,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:43:06,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019267758] [2023-11-06 22:43:06,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:06,927 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 22:43:06,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:43:06,934 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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 22:43:06,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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 22:43:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:07,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:43:07,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:43:07,388 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2023-11-06 22:43:07,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:43:07,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:43:07,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019267758] [2023-11-06 22:43:07,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2019267758] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:07,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:07,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:43:07,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915528083] [2023-11-06 22:43:07,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:07,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:43:07,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:43:07,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:43:07,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:43:07,467 INFO L87 Difference]: Start difference. First operand has 52 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-06 22:43:07,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:07,527 INFO L93 Difference]: Finished difference Result 97 states and 163 transitions. [2023-11-06 22:43:07,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:43:07,531 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2023-11-06 22:43:07,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:07,546 INFO L225 Difference]: With dead ends: 97 [2023-11-06 22:43:07,547 INFO L226 Difference]: Without dead ends: 48 [2023-11-06 22:43:07,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 96 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 22:43:07,560 INFO L413 NwaCegarLoop]: 70 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, 70 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 22:43:07,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:43:07,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-06 22:43:07,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-06 22:43:07,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:43:07,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 70 transitions. [2023-11-06 22:43:07,670 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 70 transitions. Word has length 97 [2023-11-06 22:43:07,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:07,671 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 70 transitions. [2023-11-06 22:43:07,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-06 22:43:07,672 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 70 transitions. [2023-11-06 22:43:07,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-06 22:43:07,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:07,682 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:43:07,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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 22:43:07,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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 22:43:07,902 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:43:07,903 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:07,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1234104317, now seen corresponding path program 1 times [2023-11-06 22:43:07,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:43:07,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [635338297] [2023-11-06 22:43:07,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:07,906 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 22:43:07,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:43:07,909 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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 22:43:07,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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 22:43:08,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:08,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-06 22:43:08,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:43:45,831 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-06 22:43:45,831 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:43:45,832 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:43:45,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [635338297] [2023-11-06 22:43:45,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [635338297] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:45,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:45,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-06 22:43:45,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869262195] [2023-11-06 22:43:45,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:45,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:43:45,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:43:45,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:43:45,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:43:45,838 INFO L87 Difference]: Start difference. First operand 48 states and 70 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:44:14,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:14,168 INFO L93 Difference]: Finished difference Result 128 states and 188 transitions. [2023-11-06 22:44:14,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-06 22:44:14,172 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 97 [2023-11-06 22:44:14,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:14,176 INFO L225 Difference]: With dead ends: 128 [2023-11-06 22:44:14,176 INFO L226 Difference]: Without dead ends: 126 [2023-11-06 22:44:14,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=196, Invalid=616, Unknown=0, NotChecked=0, Total=812 [2023-11-06 22:44:14,179 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 207 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:44:14,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 336 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 17.7s Time] [2023-11-06 22:44:14,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-06 22:44:14,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 61. [2023-11-06 22:44:14,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 43 states have (on average 1.302325581395349) internal successors, (56), 43 states have internal predecessors, (56), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:44:14,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 86 transitions. [2023-11-06 22:44:14,211 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 86 transitions. Word has length 97 [2023-11-06 22:44:14,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:14,212 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 86 transitions. [2023-11-06 22:44:14,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:44:14,213 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 86 transitions. [2023-11-06 22:44:14,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-06 22:44:14,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:14,215 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:14,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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)] Ended with exit code 0 [2023-11-06 22:44:14,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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 22:44:14,431 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:44:14,432 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:14,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1291265105, now seen corresponding path program 1 times [2023-11-06 22:44:14,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:44:14,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1754094093] [2023-11-06 22:44:14,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:14,433 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 22:44:14,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:44:14,435 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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 22:44:14,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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 22:44:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:14,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-06 22:44:14,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:44:35,268 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-06 22:44:35,268 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:44:35,268 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:44:35,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1754094093] [2023-11-06 22:44:35,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1754094093] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:35,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:35,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:44:35,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001845755] [2023-11-06 22:44:35,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:35,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:44:35,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:44:35,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:44:35,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:44:35,273 INFO L87 Difference]: Start difference. First operand 61 states and 86 transitions. Second operand has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:44:47,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:47,118 INFO L93 Difference]: Finished difference Result 126 states and 186 transitions. [2023-11-06 22:44:47,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-06 22:44:47,123 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 98 [2023-11-06 22:44:47,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:47,126 INFO L225 Difference]: With dead ends: 126 [2023-11-06 22:44:47,127 INFO L226 Difference]: Without dead ends: 124 [2023-11-06 22:44:47,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=150, Invalid=450, Unknown=0, NotChecked=0, Total=600 [2023-11-06 22:44:47,130 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 150 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:44:47,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 346 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2023-11-06 22:44:47,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-06 22:44:47,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 62. [2023-11-06 22:44:47,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 44 states have internal predecessors, (58), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:44:47,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 88 transitions. [2023-11-06 22:44:47,156 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 88 transitions. Word has length 98 [2023-11-06 22:44:47,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:47,157 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 88 transitions. [2023-11-06 22:44:47,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:44:47,158 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 88 transitions. [2023-11-06 22:44:47,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-06 22:44:47,160 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:47,161 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:47,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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 22:44:47,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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 22:44:47,379 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:44:47,380 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:47,380 INFO L85 PathProgramCache]: Analyzing trace with hash -868023798, now seen corresponding path program 1 times [2023-11-06 22:44:47,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:44:47,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470245113] [2023-11-06 22:44:47,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:47,381 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 22:44:47,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:44:47,383 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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 22:44:47,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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 22:44:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:47,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-06 22:44:47,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:45:07,732 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-06 22:45:07,733 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:45:07,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:45:07,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470245113] [2023-11-06 22:45:07,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1470245113] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:07,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:07,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-06 22:45:07,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308488773] [2023-11-06 22:45:07,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:07,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-06 22:45:07,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:45:07,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 22:45:07,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:45:07,738 INFO L87 Difference]: Start difference. First operand 62 states and 88 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:45:45,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:45:45,617 INFO L93 Difference]: Finished difference Result 149 states and 219 transitions. [2023-11-06 22:45:45,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-06 22:45:45,626 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 98 [2023-11-06 22:45:45,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:45:45,629 INFO L225 Difference]: With dead ends: 149 [2023-11-06 22:45:45,630 INFO L226 Difference]: Without dead ends: 147 [2023-11-06 22:45:45,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 19.7s TimeCoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2023-11-06 22:45:45,639 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 167 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:45:45,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 413 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 23.9s Time] [2023-11-06 22:45:45,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-11-06 22:45:45,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 64. [2023-11-06 22:45:45,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 46 states have (on average 1.326086956521739) internal successors, (61), 46 states have internal predecessors, (61), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:45:45,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 91 transitions. [2023-11-06 22:45:45,676 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 91 transitions. Word has length 98 [2023-11-06 22:45:45,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:45:45,677 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 91 transitions. [2023-11-06 22:45:45,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:45:45,678 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 91 transitions. [2023-11-06 22:45:45,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-06 22:45:45,680 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:45:45,680 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:45:45,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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)] Forceful destruction successful, exit code 0 [2023-11-06 22:45:45,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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 22:45:45,884 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:45:45,884 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:45,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1443199976, now seen corresponding path program 1 times [2023-11-06 22:45:45,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:45:45,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826866025] [2023-11-06 22:45:45,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:45,887 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 22:45:45,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:45:45,888 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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 22:45:45,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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 22:45:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:46,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-06 22:45:46,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:45:56,761 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-06 22:45:56,762 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:45:56,762 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:45:56,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826866025] [2023-11-06 22:45:56,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1826866025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:56,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:56,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-06 22:45:56,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492455014] [2023-11-06 22:45:56,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:56,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 22:45:56,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:45:56,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 22:45:56,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:45:56,767 INFO L87 Difference]: Start difference. First operand 64 states and 91 transitions. Second operand has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:46:28,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:28,794 INFO L93 Difference]: Finished difference Result 243 states and 357 transitions. [2023-11-06 22:46:28,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-06 22:46:28,802 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 99 [2023-11-06 22:46:28,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:28,804 INFO L225 Difference]: With dead ends: 243 [2023-11-06 22:46:28,805 INFO L226 Difference]: Without dead ends: 182 [2023-11-06 22:46:28,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=300, Invalid=890, Unknown=0, NotChecked=0, Total=1190 [2023-11-06 22:46:28,808 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 174 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:28,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 454 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 19.7s Time] [2023-11-06 22:46:28,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-11-06 22:46:28,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 73. [2023-11-06 22:46:28,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 55 states have internal predecessors, (74), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:46:28,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 104 transitions. [2023-11-06 22:46:28,836 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 104 transitions. Word has length 99 [2023-11-06 22:46:28,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:28,837 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 104 transitions. [2023-11-06 22:46:28,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:46:28,838 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 104 transitions. [2023-11-06 22:46:28,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-06 22:46:28,840 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:28,841 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:46:28,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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 22:46:29,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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 22:46:29,057 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:46:29,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:29,058 INFO L85 PathProgramCache]: Analyzing trace with hash 2123258346, now seen corresponding path program 1 times [2023-11-06 22:46:29,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:46:29,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123793460] [2023-11-06 22:46:29,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:29,059 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 22:46:29,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:46:29,061 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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 22:46:29,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b949021f-0c9c-4958-ac26-66660f7e993e/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 22:46:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:29,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-06 22:46:29,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:40,672 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-06 22:46:40,673 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:46:40,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:46:40,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123793460] [2023-11-06 22:46:40,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [123793460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:46:40,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:46:40,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-06 22:46:40,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909500190] [2023-11-06 22:46:40,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:46:40,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 22:46:40,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:46:40,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 22:46:40,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:46:40,677 INFO L87 Difference]: Start difference. First operand 73 states and 104 transitions. Second operand has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15)