/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.8.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 04:30:53,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 04:30:53,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 04:30:53,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 04:30:53,942 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 04:30:53,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 04:30:53,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 04:30:53,948 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 04:30:53,950 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 04:30:53,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 04:30:53,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 04:30:53,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 04:30:53,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 04:30:53,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 04:30:53,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 04:30:53,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 04:30:53,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 04:30:53,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 04:30:53,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 04:30:53,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 04:30:53,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 04:30:53,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 04:30:53,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 04:30:53,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 04:30:54,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 04:30:54,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 04:30:54,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 04:30:54,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 04:30:54,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 04:30:54,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 04:30:54,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 04:30:54,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 04:30:54,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 04:30:54,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 04:30:54,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 04:30:54,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 04:30:54,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 04:30:54,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 04:30:54,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 04:30:54,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 04:30:54,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 04:30:54,030 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 04:30:54,090 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 04:30:54,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 04:30:54,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 04:30:54,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 04:30:54,094 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 04:30:54,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 04:30:54,095 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 04:30:54,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 04:30:54,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 04:30:54,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 04:30:54,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 04:30:54,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 04:30:54,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 04:30:54,097 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 04:30:54,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 04:30:54,098 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 04:30:54,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 04:30:54,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 04:30:54,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 04:30:54,099 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 04:30:54,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 04:30:54,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 04:30:54,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 04:30:54,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 04:30:54,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 04:30:54,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 04:30:54,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 04:30:54,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 04:30:54,101 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 04:30:54,101 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 04:30:54,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 04:30:54,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 04:30:54,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 04:30:54,545 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 04:30:54,547 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 04:30:54,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.8.1.ufo.UNBOUNDED.pals.c [2020-10-27 04:30:54,634 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aeb15c1eb/bf36bed8ad224a8da088441ff1e59734/FLAG67f8c31ff [2020-10-27 04:30:55,376 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 04:30:55,378 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.8.1.ufo.UNBOUNDED.pals.c [2020-10-27 04:30:55,407 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aeb15c1eb/bf36bed8ad224a8da088441ff1e59734/FLAG67f8c31ff [2020-10-27 04:30:55,697 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aeb15c1eb/bf36bed8ad224a8da088441ff1e59734 [2020-10-27 04:30:55,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 04:30:55,716 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 04:30:55,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 04:30:55,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 04:30:55,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 04:30:55,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:30:55" (1/1) ... [2020-10-27 04:30:55,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24e39eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:30:55, skipping insertion in model container [2020-10-27 04:30:55,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:30:55" (1/1) ... [2020-10-27 04:30:55,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 04:30:55,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 04:30:56,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:30:56,174 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 04:30:56,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:30:56,347 INFO L208 MainTranslator]: Completed translation [2020-10-27 04:30:56,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:30:56 WrapperNode [2020-10-27 04:30:56,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 04:30:56,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 04:30:56,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 04:30:56,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 04:30:56,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:30:56" (1/1) ... [2020-10-27 04:30:56,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:30:56" (1/1) ... [2020-10-27 04:30:56,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:30:56" (1/1) ... [2020-10-27 04:30:56,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:30:56" (1/1) ... [2020-10-27 04:30:56,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:30:56" (1/1) ... [2020-10-27 04:30:56,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:30:56" (1/1) ... [2020-10-27 04:30:56,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:30:56" (1/1) ... [2020-10-27 04:30:56,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 04:30:56,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 04:30:56,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 04:30:56,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 04:30:56,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:30:56" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 04:30:56,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 04:30:56,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 04:30:56,577 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 04:30:56,577 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 04:30:56,577 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 04:30:56,578 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 04:30:56,578 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 04:30:56,578 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 04:30:56,578 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-27 04:30:56,579 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-27 04:30:56,579 INFO L138 BoogieDeclarations]: Found implementation of procedure node7 [2020-10-27 04:30:56,580 INFO L138 BoogieDeclarations]: Found implementation of procedure node8 [2020-10-27 04:30:56,580 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 04:30:56,580 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 04:30:56,580 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 04:30:56,581 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 04:30:56,581 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 04:30:56,581 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 04:30:56,582 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 04:30:56,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 04:30:56,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 04:30:56,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 04:30:56,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-27 04:30:56,582 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 04:30:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 04:30:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 04:30:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 04:30:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 04:30:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 04:30:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 04:30:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 04:30:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-27 04:30:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-27 04:30:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure node7 [2020-10-27 04:30:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure node8 [2020-10-27 04:30:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 04:30:56,585 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 04:30:56,614 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 04:30:56,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 04:30:56,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 04:30:56,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 04:30:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 04:30:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 04:30:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 04:30:57,620 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 04:30:57,621 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 04:30:57,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:30:57 BoogieIcfgContainer [2020-10-27 04:30:57,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 04:30:57,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 04:30:57,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 04:30:57,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 04:30:57,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 04:30:55" (1/3) ... [2020-10-27 04:30:57,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a090a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:30:57, skipping insertion in model container [2020-10-27 04:30:57,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:30:56" (2/3) ... [2020-10-27 04:30:57,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a090a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:30:57, skipping insertion in model container [2020-10-27 04:30:57,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:30:57" (3/3) ... [2020-10-27 04:30:57,632 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.UNBOUNDED.pals.c [2020-10-27 04:30:57,643 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 04:30:57,647 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 04:30:57,661 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 04:30:57,690 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 04:30:57,691 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 04:30:57,691 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 04:30:57,691 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 04:30:57,691 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 04:30:57,691 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 04:30:57,692 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 04:30:57,692 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 04:30:57,716 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2020-10-27 04:30:57,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-27 04:30:57,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:30:57,730 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:30:57,731 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:30:57,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:30:57,738 INFO L82 PathProgramCache]: Analyzing trace with hash 939646678, now seen corresponding path program 1 times [2020-10-27 04:30:57,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:30:57,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [720306426] [2020-10-27 04:30:57,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:30:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:58,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:58,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:58,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:30:58,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:58,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 505 [2020-10-27 04:30:58,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:58,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:30:58,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 04:30:58,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:30:58,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 04:30:59,224 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 04:30:59,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:30:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:59,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:59,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:59,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:30:59,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:59,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 04:30:59,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:59,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:30:59,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:30:59,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:30:59,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:59,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:30:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:59,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:59,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:59,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:30:59,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:59,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:30:59,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:59,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:30:59,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:30:59,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:30:59,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:59,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 04:30:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:59,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:59,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:59,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:30:59,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:59,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:30:59,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:59,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:30:59,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 04:30:59,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:30:59,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:59,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 04:30:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:59,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:59,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:59,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:30:59,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:59,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:30:59,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:59,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:30:59,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:30:59,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:30:59,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:59,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 04:30:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:59,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:59,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:59,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:30:59,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:59,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:30:59,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:59,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:30:59,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:30:59,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:30:59,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:59,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 04:30:59,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:59,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:59,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:59,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:30:59,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:59,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:30:59,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:59,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:30:59,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:30:59,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:30:59,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:59,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 04:30:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:59,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:59,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:59,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:30:59,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:59,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:30:59,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:59,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:30:59,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:30:59,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:30:59,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:59,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 04:30:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:59,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:59,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:59,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:30:59,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:59,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:30:59,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:30:59,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:30:59,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:30:59,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:59,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 04:30:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:59,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:59,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:59,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:30:59,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:59,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:30:59,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:59,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:30:59,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:30:59,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:30:59,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:59,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 04:30:59,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:59,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:59,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:59,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:30:59,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:59,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:30:59,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:59,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:30:59,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:30:59,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:30:59,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 04:30:59,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-27 04:30:59,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:59,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:59,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:59,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:30:59,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:59,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:30:59,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:59,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:30:59,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:30:59,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:30:59,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:59,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 04:30:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:59,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:59,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:59,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:30:59,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:59,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:30:59,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:59,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:30:59,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:30:59,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:30:59,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:59,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:30:59,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [720306426] [2020-10-27 04:30:59,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:30:59,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 04:30:59,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455719257] [2020-10-27 04:30:59,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 04:30:59,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:30:59,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 04:30:59,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-27 04:30:59,775 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 11 states. [2020-10-27 04:31:00,282 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 04:31:00,590 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:31:00,892 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:31:01,217 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:31:01,525 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:31:01,789 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:31:02,075 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:31:02,369 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:31:02,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:31:02,576 INFO L93 Difference]: Finished difference Result 313 states and 474 transitions. [2020-10-27 04:31:02,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 04:31:02,577 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 89 [2020-10-27 04:31:02,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:31:02,589 INFO L225 Difference]: With dead ends: 313 [2020-10-27 04:31:02,589 INFO L226 Difference]: Without dead ends: 191 [2020-10-27 04:31:02,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2020-10-27 04:31:02,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-10-27 04:31:02,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 190. [2020-10-27 04:31:02,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-10-27 04:31:02,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 297 transitions. [2020-10-27 04:31:02,672 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 297 transitions. Word has length 89 [2020-10-27 04:31:02,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:31:02,673 INFO L481 AbstractCegarLoop]: Abstraction has 190 states and 297 transitions. [2020-10-27 04:31:02,673 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 04:31:02,673 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 297 transitions. [2020-10-27 04:31:02,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-27 04:31:02,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:31:02,678 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:31:02,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 04:31:02,679 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:31:02,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:31:02,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1826869524, now seen corresponding path program 1 times [2020-10-27 04:31:02,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:31:02,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967901537] [2020-10-27 04:31:02,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:31:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:02,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:03,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:03,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 04:31:03,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:03,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1045 [2020-10-27 04:31:03,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:03,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:31:03,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 04:31:03,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 04:31:03,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:04,208 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 04:31:04,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:31:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:04,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:04,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:04,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:31:04,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:04,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:31:04,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:04,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:04,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:31:04,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:04,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:04,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:31:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:04,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:04,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:04,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:31:04,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:04,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:31:04,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:04,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:31:04,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:31:04,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:31:04,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:04,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 04:31:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:04,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:04,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:04,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:31:04,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:04,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:31:04,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:04,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:31:04,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:31:04,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:31:04,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:04,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 04:31:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:04,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:04,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:04,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:04,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:04,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:31:04,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:04,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:04,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:31:04,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:04,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:04,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 04:31:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:04,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:04,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:04,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:04,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:04,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:31:04,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:04,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:04,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:31:04,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:04,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:04,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 04:31:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:04,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:04,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:04,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:04,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:04,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:31:04,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:04,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:04,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:31:04,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:04,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:04,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 04:31:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:04,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:04,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:04,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:04,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:04,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:31:04,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:31:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:04,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:04,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 04:31:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:04,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:04,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:04,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:04,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:04,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:31:04,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:04,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:04,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:31:04,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:04,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:04,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 04:31:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:04,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:04,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:04,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:04,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:04,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:31:04,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:04,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:04,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:31:04,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:04,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:04,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 04:31:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:04,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:04,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:04,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:04,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:04,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:31:04,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:04,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:04,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:31:04,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:04,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:04,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-27 04:31:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:04,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:04,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:04,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:04,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:04,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:31:04,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:04,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:04,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:31:04,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:04,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:04,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 04:31:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:04,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:04,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:04,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:31:04,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:04,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:31:04,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:04,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:04,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:31:04,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:04,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 04:31:04,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:31:04,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [967901537] [2020-10-27 04:31:04,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:31:04,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-27 04:31:04,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195068643] [2020-10-27 04:31:04,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 04:31:04,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:31:04,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 04:31:04,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-10-27 04:31:04,919 INFO L87 Difference]: Start difference. First operand 190 states and 297 transitions. Second operand 17 states. [2020-10-27 04:31:05,370 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-27 04:31:05,772 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-27 04:31:06,319 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-10-27 04:31:06,762 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-10-27 04:31:07,882 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 04:31:08,182 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:31:08,497 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:31:08,835 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:31:09,166 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:31:09,490 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:31:09,817 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:31:10,155 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:31:10,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:31:10,536 INFO L93 Difference]: Finished difference Result 308 states and 462 transitions. [2020-10-27 04:31:10,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 04:31:10,537 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 89 [2020-10-27 04:31:10,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:31:10,540 INFO L225 Difference]: With dead ends: 308 [2020-10-27 04:31:10,541 INFO L226 Difference]: Without dead ends: 191 [2020-10-27 04:31:10,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=203, Invalid=609, Unknown=0, NotChecked=0, Total=812 [2020-10-27 04:31:10,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-10-27 04:31:10,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 190. [2020-10-27 04:31:10,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-10-27 04:31:10,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 236 transitions. [2020-10-27 04:31:10,592 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 236 transitions. Word has length 89 [2020-10-27 04:31:10,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:31:10,592 INFO L481 AbstractCegarLoop]: Abstraction has 190 states and 236 transitions. [2020-10-27 04:31:10,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 04:31:10,592 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 236 transitions. [2020-10-27 04:31:10,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-27 04:31:10,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:31:10,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:31:10,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 04:31:10,610 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:31:10,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:31:10,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1340801732, now seen corresponding path program 1 times [2020-10-27 04:31:10,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:31:10,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [299614300] [2020-10-27 04:31:10,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:31:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:10,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:10,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:11,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:11,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:12,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:15,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:15,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-27 04:31:15,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:31:15,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 04:31:15,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:15,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:31:15,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 04:31:15,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-27 04:31:15,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:31:16,193 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 04:31:16,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:31:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:16,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:16,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:16,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:31:16,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:16,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-27 04:31:16,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:16,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:31:16,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:31:16,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:31:16,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:16,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:31:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:16,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:16,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:16,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 04:31:16,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:16,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-27 04:31:16,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:16,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:31:16,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:31:16,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-27 04:31:16,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:16,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 04:31:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:16,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:16,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:16,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:31:16,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:16,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:31:16,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:16,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:31:16,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:31:16,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:31:16,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:16,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 04:31:16,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:16,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:16,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:16,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:16,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:16,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 04:31:16,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:16,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:31:16,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:31:16,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:31:16,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:16,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 04:31:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:16,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:16,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:16,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:16,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:16,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 04:31:16,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:16,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:31:16,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:31:16,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:31:16,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:16,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 04:31:16,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:16,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:16,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:16,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:16,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:16,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:31:16,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:16,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:31:16,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:31:16,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:31:16,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:16,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 04:31:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:16,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:16,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:16,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:16,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:16,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 04:31:16,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:16,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:31:16,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:31:16,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:31:16,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:16,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 04:31:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:16,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:16,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:16,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:16,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:16,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:31:16,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:16,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:31:16,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:31:16,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:31:16,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:17,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 04:31:17,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:17,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:17,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:17,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:17,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:17,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:31:17,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:17,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:31:17,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:31:17,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:31:17,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:17,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 04:31:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:17,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:17,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:17,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:17,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:17,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:31:17,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:17,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:31:17,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:31:17,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:31:17,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:17,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-27 04:31:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:17,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:17,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:17,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:31:17,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:17,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 04:31:17,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:17,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:31:17,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:31:17,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:31:17,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:17,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-27 04:31:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:31:17,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:31:17,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:31:17,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:31:17,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:31:17,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:31:17,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:31:17,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:31:17,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 04:31:17,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 04:31:17,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:31:17,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:31:17,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [299614300] [2020-10-27 04:31:17,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:31:17,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2020-10-27 04:31:17,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70933522] [2020-10-27 04:31:17,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-27 04:31:17,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:31:17,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-27 04:31:17,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=748, Unknown=0, NotChecked=0, Total=870 [2020-10-27 04:31:17,412 INFO L87 Difference]: Start difference. First operand 190 states and 236 transitions. Second operand 30 states. [2020-10-27 04:31:17,868 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-27 04:31:18,303 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-27 04:31:18,731 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-27 04:31:19,158 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-27 04:31:19,598 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-27 04:31:20,037 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-27 04:31:20,492 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-27 04:31:20,963 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-27 04:31:21,439 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:31:21,649 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 04:31:21,850 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:31:22,126 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 04:31:22,304 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 04:31:22,633 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:31:22,809 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:31:23,042 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 04:31:23,224 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 04:31:23,472 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 04:31:23,666 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 04:31:23,989 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:31:24,194 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:31:24,467 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:31:24,660 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 04:31:24,850 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:31:25,153 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:31:25,353 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 04:31:25,527 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 04:31:25,885 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:31:26,096 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:31:26,461 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 04:31:26,645 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:31:26,838 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 04:31:27,043 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 04:31:27,377 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 04:31:27,588 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:31:27,771 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 04:31:27,952 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 04:31:28,339 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:31:28,552 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:31:28,866 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:31:29,061 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 04:31:29,245 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:31:29,424 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 04:31:29,649 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:31:29,988 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 04:31:30,199 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 04:31:30,397 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:31:30,587 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 04:31:30,765 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 04:31:31,193 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:31:31,420 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:31:31,715 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:31:31,910 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:31:32,091 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 04:31:32,262 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:31:32,432 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 04:31:32,618 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 04:31:32,968 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 04:31:33,176 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:31:33,358 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 04:31:33,533 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:31:33,713 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 04:31:33,882 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 04:31:34,302 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:31:34,542 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:31:34,863 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:31:35,058 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:31:35,251 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:31:35,440 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:31:35,621 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:31:35,795 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 04:31:36,005 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:31:36,386 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:31:36,584 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 04:31:36,778 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:31:36,958 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 04:31:37,138 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:31:37,310 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 04:31:37,489 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 04:31:37,870 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:31:38,612 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-10-27 04:31:39,098 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-27 04:31:39,577 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-27 04:31:40,038 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-27 04:31:40,500 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-27 04:31:40,957 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-27 04:31:41,400 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-27 04:31:42,138 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-27 04:31:44,705 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:31:44,960 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:31:45,193 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:31:45,423 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:31:45,633 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 04:31:45,850 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:31:46,064 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 04:31:46,406 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:31:46,609 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 04:31:46,824 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:31:47,022 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 04:31:47,213 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:31:47,421 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 04:31:47,619 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 04:31:47,831 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 04:31:48,333 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-27 04:31:48,589 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:31:49,069 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:31:49,309 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:31:49,518 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:31:49,724 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:31:49,932 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:31:50,158 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:31:50,361 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:31:50,907 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:31:51,119 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:31:51,323 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:31:51,536 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:31:51,739 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 04:31:51,932 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:31:52,121 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 04:31:52,325 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:31:52,526 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:31:53,462 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:31:53,726 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:31:53,950 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:31:54,169 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:31:54,388 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:31:54,626 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:31:54,834 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:31:55,197 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:31:55,433 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:31:55,658 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:31:55,877 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:31:56,095 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 04:31:56,304 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:31:56,518 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:31:56,743 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 04:31:57,712 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:31:57,962 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:31:58,177 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:31:58,406 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:31:58,636 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:31:58,862 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:31:59,075 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:31:59,438 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:31:59,658 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:31:59,892 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 04:32:00,108 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:32:00,333 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:32:00,568 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:32:00,782 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:32:01,651 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:32:01,884 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:32:02,093 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:32:02,297 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:32:02,501 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:32:02,693 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:32:02,896 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:32:03,240 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:32:03,454 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:32:03,662 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:32:03,864 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:32:04,092 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:32:04,309 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:32:05,096 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:32:05,329 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:32:05,541 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:32:05,753 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:32:05,973 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:32:06,171 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:32:06,370 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:32:06,735 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:32:06,962 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:32:07,189 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:32:07,468 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:32:07,696 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:32:08,479 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:32:08,724 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:32:08,969 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:32:09,188 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:32:09,410 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:32:09,625 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:32:09,833 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:32:10,192 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:32:10,433 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:32:10,716 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:32:10,947 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:32:11,912 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 123 [2020-10-27 04:32:12,206 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 04:32:12,443 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:32:12,673 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:32:12,899 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:32:13,121 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:32:13,335 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:32:13,739 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:32:14,056 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:32:25,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:32:25,260 INFO L93 Difference]: Finished difference Result 2529 states and 3929 transitions. [2020-10-27 04:32:25,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 240 states. [2020-10-27 04:32:25,261 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 149 [2020-10-27 04:32:25,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:32:25,296 INFO L225 Difference]: With dead ends: 2529 [2020-10-27 04:32:25,297 INFO L226 Difference]: Without dead ends: 2418 [2020-10-27 04:32:25,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 254 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26164 ImplicationChecksByTransitivity, 42.9s TimeCoverageRelationStatistics Valid=9956, Invalid=55324, Unknown=0, NotChecked=0, Total=65280 [2020-10-27 04:32:25,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states. [2020-10-27 04:32:25,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 2015. [2020-10-27 04:32:25,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2015 states. [2020-10-27 04:32:25,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 2872 transitions. [2020-10-27 04:32:25,722 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 2872 transitions. Word has length 149 [2020-10-27 04:32:25,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:32:25,723 INFO L481 AbstractCegarLoop]: Abstraction has 2015 states and 2872 transitions. [2020-10-27 04:32:25,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-27 04:32:25,723 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 2872 transitions. [2020-10-27 04:32:25,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-27 04:32:25,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:32:25,730 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:32:25,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 04:32:25,730 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:32:25,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:32:25,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1663531756, now seen corresponding path program 1 times [2020-10-27 04:32:25,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:32:25,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208230261] [2020-10-27 04:32:25,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:32:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:25,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:25,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:25,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:26,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:26,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:28,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:30,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:30,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-27 04:32:30,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 04:32:30,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-27 04:32:30,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:30,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:32:30,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-27 04:32:30,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-27 04:32:30,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:31,254 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 04:32:31,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:32:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:31,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:31,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:31,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:32:31,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:31,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 04:32:31,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:31,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:31,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:31,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:31,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:31,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:32:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:31,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:31,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:31,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 04:32:31,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:31,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 04:32:31,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:31,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:31,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:31,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:32:31,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:31,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 04:32:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:31,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:31,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:31,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:32:31,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:31,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:32:31,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:31,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:31,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:31,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:32:31,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:31,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 04:32:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:31,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:31,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:31,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:31,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:31,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:32:31,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:31,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:31,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:31,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:32:31,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:31,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 04:32:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:31,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:31,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:31,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:31,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:31,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:32:31,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:31,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:32:31,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:32:31,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:32:31,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:31,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 04:32:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:31,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:31,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:31,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:31,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:31,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:32:31,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:31,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:31,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:32:31,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:31,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:31,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 04:32:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:31,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:31,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:31,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:31,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:31,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:32:31,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:31,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:31,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:32:31,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:31,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:31,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 04:32:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:31,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:31,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:31,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:31,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:31,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:32:31,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:31,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:31,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:32:31,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:31,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:31,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 04:32:31,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:31,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:31,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:31,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:31,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:31,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:32:31,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:31,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:31,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:32:31,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:31,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:31,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 04:32:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:31,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:31,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:31,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:31,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:31,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:32:31,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:31,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:31,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:32:31,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:31,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:31,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-27 04:32:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:31,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:31,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:31,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:31,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:31,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:32:31,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:31,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:31,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:32:31,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:31,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:32:31,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-27 04:32:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:31,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:31,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:31,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:31,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:32:31,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:32:31,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:32:31,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:31,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:31,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 04:32:31,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 04:32:31,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:31,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:32:31,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208230261] [2020-10-27 04:32:31,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:32:31,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 04:32:31,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308897622] [2020-10-27 04:32:31,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 04:32:31,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:32:31,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 04:32:31,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-27 04:32:31,841 INFO L87 Difference]: Start difference. First operand 2015 states and 2872 transitions. Second operand 15 states. [2020-10-27 04:32:32,240 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-27 04:32:33,011 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-27 04:32:33,330 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:32:33,543 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:32:33,841 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:32:34,142 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:32:34,418 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:32:34,673 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:32:34,953 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:32:35,543 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-27 04:32:36,125 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 04:32:36,342 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:32:36,669 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:32:36,893 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 04:32:37,324 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-27 04:32:37,547 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 04:32:37,756 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 04:32:37,954 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:32:38,342 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:32:38,540 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:32:38,703 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:32:39,215 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:32:39,418 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:32:39,598 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:32:40,126 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:32:40,335 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:32:40,516 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:32:41,109 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:32:41,327 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:32:41,527 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:32:42,067 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:32:42,267 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:32:42,448 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:32:42,978 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:32:43,169 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:32:43,349 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:32:44,464 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 04:32:44,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:32:44,702 INFO L93 Difference]: Finished difference Result 9387 states and 13566 transitions. [2020-10-27 04:32:44,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-27 04:32:44,703 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 151 [2020-10-27 04:32:44,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:32:44,752 INFO L225 Difference]: With dead ends: 9387 [2020-10-27 04:32:44,752 INFO L226 Difference]: Without dead ends: 7451 [2020-10-27 04:32:44,762 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 685 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=578, Invalid=2178, Unknown=0, NotChecked=0, Total=2756 [2020-10-27 04:32:44,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7451 states. [2020-10-27 04:32:45,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7451 to 7340. [2020-10-27 04:32:45,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7340 states. [2020-10-27 04:32:45,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7340 states to 7340 states and 10457 transitions. [2020-10-27 04:32:45,573 INFO L78 Accepts]: Start accepts. Automaton has 7340 states and 10457 transitions. Word has length 151 [2020-10-27 04:32:45,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:32:45,573 INFO L481 AbstractCegarLoop]: Abstraction has 7340 states and 10457 transitions. [2020-10-27 04:32:45,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 04:32:45,574 INFO L276 IsEmpty]: Start isEmpty. Operand 7340 states and 10457 transitions. [2020-10-27 04:32:45,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-27 04:32:45,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:32:45,578 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:32:45,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 04:32:45,578 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:32:45,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:32:45,579 INFO L82 PathProgramCache]: Analyzing trace with hash 901421078, now seen corresponding path program 1 times [2020-10-27 04:32:45,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:32:45,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [992582219] [2020-10-27 04:32:45,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:32:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:45,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:45,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:45,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:46,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:46,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:50,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:50,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-27 04:32:50,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:32:50,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-27 04:32:50,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:50,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:32:50,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-27 04:32:50,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 04:32:50,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:51,110 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 04:32:51,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:32:51,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:51,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:51,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:51,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:32:51,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:51,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 04:32:51,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:51,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:51,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:51,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:51,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:51,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:32:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:51,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:51,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:51,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 04:32:51,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:51,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-27 04:32:51,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:51,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:51,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:51,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:32:51,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:51,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 04:32:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:51,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:51,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:51,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:32:51,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:51,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:32:51,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:51,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:51,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:51,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:32:51,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:51,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 04:32:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:51,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:51,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:51,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:51,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:51,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:32:51,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:51,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:51,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:51,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:32:51,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:51,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 04:32:51,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:51,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:51,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:51,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:51,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:51,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:32:51,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:51,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:32:51,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:32:51,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:32:51,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:51,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 04:32:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:51,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:51,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:51,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:51,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:51,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:32:51,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:51,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:32:51,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:32:51,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:32:51,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:51,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 04:32:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:51,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:51,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:51,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:51,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:51,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:32:51,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:51,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:51,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:32:51,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:51,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:51,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 04:32:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:51,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:51,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:51,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:51,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:51,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:32:51,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:51,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:51,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:32:51,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:51,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:51,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 04:32:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:51,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:51,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:51,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:51,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:51,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:32:51,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:51,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:51,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:32:51,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:51,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:51,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 04:32:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:51,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:51,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:51,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:51,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:51,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:32:51,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:32:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:51,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:51,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-27 04:32:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:51,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:51,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:51,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:32:51,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:51,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:32:51,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:51,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:51,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:32:51,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:51,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:51,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-27 04:32:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:32:51,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:32:51,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:32:51,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:32:51,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:32:51,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:32:51,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:32:51,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:32:51,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 04:32:51,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:32:51,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:32:51,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:32:51,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [992582219] [2020-10-27 04:32:51,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:32:51,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 04:32:51,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347800528] [2020-10-27 04:32:51,674 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 04:32:51,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:32:51,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 04:32:51,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-27 04:32:51,675 INFO L87 Difference]: Start difference. First operand 7340 states and 10457 transitions. Second operand 14 states. [2020-10-27 04:32:52,094 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-27 04:32:52,742 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-27 04:32:53,042 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:32:53,260 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:32:53,455 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:32:53,730 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:32:54,007 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:32:54,313 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:32:54,567 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:32:55,065 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 04:32:55,315 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:32:55,623 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:32:55,837 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 04:32:56,089 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:32:56,411 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:32:56,731 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:32:57,024 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:32:57,384 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:32:58,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:32:58,147 INFO L93 Difference]: Finished difference Result 21474 states and 30705 transitions. [2020-10-27 04:32:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 04:32:58,148 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 151 [2020-10-27 04:32:58,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:32:58,248 INFO L225 Difference]: With dead ends: 21474 [2020-10-27 04:32:58,248 INFO L226 Difference]: Without dead ends: 14213 [2020-10-27 04:32:58,277 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=258, Invalid=734, Unknown=0, NotChecked=0, Total=992 [2020-10-27 04:32:58,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14213 states. [2020-10-27 04:32:59,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14213 to 14142. [2020-10-27 04:32:59,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14142 states. [2020-10-27 04:32:59,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14142 states to 14142 states and 20053 transitions. [2020-10-27 04:32:59,778 INFO L78 Accepts]: Start accepts. Automaton has 14142 states and 20053 transitions. Word has length 151 [2020-10-27 04:32:59,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:32:59,779 INFO L481 AbstractCegarLoop]: Abstraction has 14142 states and 20053 transitions. [2020-10-27 04:32:59,780 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 04:32:59,780 INFO L276 IsEmpty]: Start isEmpty. Operand 14142 states and 20053 transitions. [2020-10-27 04:32:59,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-27 04:32:59,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:32:59,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:32:59,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 04:32:59,784 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:32:59,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:32:59,784 INFO L82 PathProgramCache]: Analyzing trace with hash 505541900, now seen corresponding path program 1 times [2020-10-27 04:32:59,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:32:59,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [299119243] [2020-10-27 04:32:59,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:32:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:00,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:00,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:00,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:00,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:02,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:04,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:04,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-27 04:33:04,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:33:04,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-27 04:33:04,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:04,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:33:04,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-27 04:33:04,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-27 04:33:04,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:05,341 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 04:33:05,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:33:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:05,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:05,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:05,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:33:05,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:05,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 04:33:05,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:05,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:05,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:05,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:05,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:33:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:05,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:05,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:05,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 04:33:05,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:05,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 04:33:05,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:05,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:33:05,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:05,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 04:33:05,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:05,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 04:33:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:05,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:05,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:05,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:33:05,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:05,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:33:05,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:05,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:33:05,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:05,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:33:05,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:05,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 04:33:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:05,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:05,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:05,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:05,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:05,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:33:05,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:05,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:33:05,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:05,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:33:05,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:05,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 04:33:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:05,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:05,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:05,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:05,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:05,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:33:05,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:05,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:33:05,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:05,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:33:05,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:05,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 04:33:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:05,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:05,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:05,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:05,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:05,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:33:05,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:05,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:33:05,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:05,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:33:05,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:05,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 04:33:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:05,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:05,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:05,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:05,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:05,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:33:05,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:05,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:33:05,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:33:05,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:33:05,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:05,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 04:33:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:05,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:05,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:05,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:05,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:05,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:33:05,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:05,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:05,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:33:05,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:05,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:05,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 04:33:05,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:05,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:05,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:05,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:05,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:05,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:33:05,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:05,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:05,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:33:05,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:05,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:05,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 04:33:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:05,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:05,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:05,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:05,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:05,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:33:05,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:05,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:05,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:33:05,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:05,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:05,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-27 04:33:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:05,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:05,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:05,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:05,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:05,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:33:05,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:05,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:05,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:33:05,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:05,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:05,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-27 04:33:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:05,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:05,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:05,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:33:05,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:05,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 04:33:05,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:05,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:05,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 04:33:05,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:05,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:05,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:33:05,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [299119243] [2020-10-27 04:33:05,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:33:05,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 04:33:05,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82109461] [2020-10-27 04:33:05,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 04:33:05,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:33:05,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 04:33:05,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-27 04:33:05,922 INFO L87 Difference]: Start difference. First operand 14142 states and 20053 transitions. Second operand 14 states. [2020-10-27 04:33:06,338 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-27 04:33:06,946 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-27 04:33:07,203 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:33:07,410 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:33:07,603 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:33:07,779 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:33:08,029 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:33:08,278 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:33:08,512 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:33:08,962 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 04:33:09,206 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:33:09,491 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:33:09,795 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:33:10,021 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 04:33:10,286 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:33:10,651 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:33:10,990 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:33:11,332 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:33:12,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:33:12,806 INFO L93 Difference]: Finished difference Result 41468 states and 58969 transitions. [2020-10-27 04:33:12,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 04:33:12,807 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 151 [2020-10-27 04:33:12,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:33:12,956 INFO L225 Difference]: With dead ends: 41468 [2020-10-27 04:33:12,956 INFO L226 Difference]: Without dead ends: 27405 [2020-10-27 04:33:13,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=258, Invalid=734, Unknown=0, NotChecked=0, Total=992 [2020-10-27 04:33:13,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27405 states. [2020-10-27 04:33:15,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27405 to 27266. [2020-10-27 04:33:15,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27266 states. [2020-10-27 04:33:15,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27266 states to 27266 states and 38449 transitions. [2020-10-27 04:33:15,798 INFO L78 Accepts]: Start accepts. Automaton has 27266 states and 38449 transitions. Word has length 151 [2020-10-27 04:33:15,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:33:15,798 INFO L481 AbstractCegarLoop]: Abstraction has 27266 states and 38449 transitions. [2020-10-27 04:33:15,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 04:33:15,798 INFO L276 IsEmpty]: Start isEmpty. Operand 27266 states and 38449 transitions. [2020-10-27 04:33:15,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-27 04:33:15,801 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:33:15,802 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:33:15,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 04:33:15,802 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:33:15,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:33:15,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1568776406, now seen corresponding path program 1 times [2020-10-27 04:33:15,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:33:15,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [611327437] [2020-10-27 04:33:15,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:33:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:15,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:15,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:16,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:16,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:20,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:20,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-27 04:33:20,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 04:33:20,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-27 04:33:20,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:20,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:33:20,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-27 04:33:20,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:33:20,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 04:33:21,358 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 04:33:21,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:33:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:21,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:21,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:21,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:33:21,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:21,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:33:21,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:21,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:21,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:21,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:21,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:21,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:33:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:21,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:21,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:21,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 04:33:21,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:21,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 04:33:21,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:21,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:33:21,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:21,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:33:21,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:21,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 04:33:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:21,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:21,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:21,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:33:21,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:21,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:33:21,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:21,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:33:21,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:21,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:33:21,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:21,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 04:33:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:21,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:21,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:21,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:21,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:21,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:33:21,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:21,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:33:21,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:21,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:33:21,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:21,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 04:33:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:21,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:21,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:21,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:21,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:21,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:33:21,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:21,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:33:21,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:21,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:33:21,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:21,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 04:33:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:21,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:21,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:21,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:21,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:21,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:33:21,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:21,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:33:21,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:21,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:33:21,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:21,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 04:33:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:21,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:21,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:21,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:21,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:21,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:33:21,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:21,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:33:21,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:21,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:33:21,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:21,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 04:33:21,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:21,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:21,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:21,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:21,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:21,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:33:21,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:21,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:33:21,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:33:21,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:33:21,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:21,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 04:33:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:21,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:21,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:21,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:21,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:21,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:33:21,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:21,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:21,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:33:21,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:21,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:21,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 04:33:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:21,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:21,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:21,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:21,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:21,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:33:21,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:21,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:21,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:33:21,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:21,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:21,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-27 04:33:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:21,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:21,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:21,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:21,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:21,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:33:21,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:21,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:21,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:33:21,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:21,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:21,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-27 04:33:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:21,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:21,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:21,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:33:21,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:21,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:33:21,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:21,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:21,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 04:33:21,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:21,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:33:22,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:33:22,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [611327437] [2020-10-27 04:33:22,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:33:22,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 04:33:22,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803957809] [2020-10-27 04:33:22,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 04:33:22,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:33:22,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 04:33:22,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-27 04:33:22,053 INFO L87 Difference]: Start difference. First operand 27266 states and 38449 transitions. Second operand 14 states. [2020-10-27 04:33:22,645 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-27 04:33:23,365 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-27 04:33:23,674 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:33:23,899 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:33:24,125 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:33:24,341 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:33:24,539 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:33:24,801 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:33:25,060 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:33:25,554 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 04:33:25,789 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:33:26,050 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:33:26,317 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:33:26,642 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:33:26,928 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:33:27,207 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:33:27,612 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:33:28,082 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:33:30,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:33:30,846 INFO L93 Difference]: Finished difference Result 79992 states and 113093 transitions. [2020-10-27 04:33:30,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 04:33:30,847 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 151 [2020-10-27 04:33:30,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:33:31,060 INFO L225 Difference]: With dead ends: 79992 [2020-10-27 04:33:31,061 INFO L226 Difference]: Without dead ends: 52805 [2020-10-27 04:33:31,138 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=258, Invalid=734, Unknown=0, NotChecked=0, Total=992 [2020-10-27 04:33:31,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52805 states. [2020-10-27 04:33:35,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52805 to 52530. [2020-10-27 04:33:35,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52530 states. [2020-10-27 04:33:35,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52530 states to 52530 states and 73633 transitions. [2020-10-27 04:33:35,730 INFO L78 Accepts]: Start accepts. Automaton has 52530 states and 73633 transitions. Word has length 151 [2020-10-27 04:33:35,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:33:35,731 INFO L481 AbstractCegarLoop]: Abstraction has 52530 states and 73633 transitions. [2020-10-27 04:33:35,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 04:33:35,731 INFO L276 IsEmpty]: Start isEmpty. Operand 52530 states and 73633 transitions. [2020-10-27 04:33:35,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-27 04:33:35,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:33:35,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:33:35,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 04:33:35,734 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:33:35,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:33:35,735 INFO L82 PathProgramCache]: Analyzing trace with hash -857783220, now seen corresponding path program 1 times [2020-10-27 04:33:35,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:33:35,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1989844297] [2020-10-27 04:33:35,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:33:35,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:35,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:35,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:36,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:39,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:40,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:40,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-27 04:33:40,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 04:33:40,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-27 04:33:40,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:40,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 04:33:40,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 04:33:40,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-27 04:33:40,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:41,247 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 04:33:41,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:33:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:41,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:41,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:41,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:33:41,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:41,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 04:33:41,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:41,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:33:41,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:41,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:33:41,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:41,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:33:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:41,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:41,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:41,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 04:33:41,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:41,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-27 04:33:41,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:41,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:33:41,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:41,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-27 04:33:41,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:41,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 04:33:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:41,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:41,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:41,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:33:41,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:41,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:33:41,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:41,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:33:41,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:33:41,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:33:41,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:41,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 04:33:41,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:41,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:41,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:41,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:41,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:41,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:33:41,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:41,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:33:41,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:33:41,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:33:41,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:41,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 04:33:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:41,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:41,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:41,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:41,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:41,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:33:41,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:41,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:33:41,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:33:41,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:33:41,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:41,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 04:33:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:41,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:41,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:41,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:41,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:41,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:33:41,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:41,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:33:41,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:33:41,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:33:41,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:41,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 04:33:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:41,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:41,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:41,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:41,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:41,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:33:41,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:41,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:33:41,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:33:41,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:33:41,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:41,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 04:33:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:41,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:42,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:42,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:42,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:42,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:33:42,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:42,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:33:42,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:33:42,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:33:42,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:42,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 04:33:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:42,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:42,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:42,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:42,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:42,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:33:42,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:33:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:33:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:33:42,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:42,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 04:33:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:42,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:42,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:42,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:42,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:42,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:33:42,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:42,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:33:42,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:33:42,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:33:42,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:42,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-27 04:33:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:42,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:42,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:42,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:33:42,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:42,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:33:42,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:33:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:33:42,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:33:42,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:42,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-27 04:33:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:33:42,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:33:42,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:33:42,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:33:42,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:33:42,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:33:42,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:33:42,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:33:42,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 04:33:42,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 04:33:42,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:33:42,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:33:42,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1989844297] [2020-10-27 04:33:42,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:33:42,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-10-27 04:33:42,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543140016] [2020-10-27 04:33:42,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-27 04:33:42,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:33:42,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-27 04:33:42,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=634, Unknown=0, NotChecked=0, Total=756 [2020-10-27 04:33:42,600 INFO L87 Difference]: Start difference. First operand 52530 states and 73633 transitions. Second operand 28 states. [2020-10-27 04:33:43,096 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-27 04:33:43,573 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-27 04:33:44,009 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-27 04:33:44,460 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-27 04:33:44,922 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-27 04:33:45,391 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-27 04:33:45,866 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-27 04:33:46,357 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-27 04:33:46,854 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:33:47,116 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 04:33:47,498 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:33:47,913 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-27 04:33:48,170 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:33:48,432 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:33:48,693 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:33:48,952 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:33:49,204 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:33:49,449 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:33:49,722 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:33:49,922 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:33:50,209 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:33:50,451 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:33:50,823 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:33:51,320 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-10-27 04:33:51,484 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:33:51,815 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-27 04:33:52,063 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:33:52,447 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:33:52,672 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:33:53,039 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:33:53,254 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:33:53,786 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-10-27 04:33:53,964 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:33:54,365 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 04:33:54,609 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-27 04:33:54,848 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 04:33:55,324 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:33:55,511 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:33:55,733 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 04:33:55,922 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:33:56,281 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:33:56,471 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:33:56,987 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-10-27 04:33:58,978 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:33:59,200 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:33:59,446 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:33:59,828 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 04:34:00,224 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 04:34:00,507 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 04:34:00,716 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:34:00,989 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 04:34:01,208 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:34:01,421 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:34:01,700 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:34:02,075 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 04:34:02,433 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:34:02,663 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:34:03,049 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:34:03,268 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 04:34:03,427 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:34:04,149 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 04:34:04,418 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:34:04,659 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 04:34:05,123 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-27 04:34:05,619 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 04:34:05,989 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:34:06,185 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 04:34:06,485 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:34:06,734 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 04:34:07,023 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 04:34:07,265 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:34:07,490 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:34:07,654 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:34:08,581 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 04:34:08,877 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:34:09,119 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 04:34:09,607 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-27 04:34:10,231 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:34:10,430 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 04:34:10,864 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:34:11,079 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:34:11,295 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:34:11,646 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:34:11,931 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 04:34:12,250 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 04:34:12,435 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 04:34:12,675 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 04:34:12,895 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:34:13,052 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:34:14,045 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 04:34:14,371 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:34:14,601 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:34:15,061 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-27 04:34:15,766 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:34:15,983 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:34:16,194 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:34:16,613 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 04:34:16,850 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 04:34:17,084 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 04:34:17,270 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 04:34:17,580 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:34:17,916 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 04:34:18,231 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:34:18,411 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 04:34:18,592 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 04:34:18,845 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 04:34:19,081 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 04:34:19,257 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 04:34:20,421 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 04:34:20,785 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:34:21,060 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-27 04:34:21,573 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-10-27 04:34:23,620 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 04:34:23,870 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 123