/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_opt-floodmax.4.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 12:45:20,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 12:45:20,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 12:45:20,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 12:45:20,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 12:45:20,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 12:45:20,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 12:45:20,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 12:45:20,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 12:45:20,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 12:45:20,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 12:45:20,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 12:45:20,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 12:45:20,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 12:45:20,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 12:45:20,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 12:45:20,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 12:45:20,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 12:45:20,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 12:45:21,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 12:45:21,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 12:45:21,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 12:45:21,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 12:45:21,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 12:45:21,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 12:45:21,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 12:45:21,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 12:45:21,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 12:45:21,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 12:45:21,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 12:45:21,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 12:45:21,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 12:45:21,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 12:45:21,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 12:45:21,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 12:45:21,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 12:45:21,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 12:45:21,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 12:45:21,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 12:45:21,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 12:45:21,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 12:45:21,057 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 [2020-10-29 12:45:21,109 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 12:45:21,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 12:45:21,115 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 12:45:21,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 12:45:21,116 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 12:45:21,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 12:45:21,117 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 12:45:21,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 12:45:21,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 12:45:21,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 12:45:21,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 12:45:21,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 12:45:21,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 12:45:21,119 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 12:45:21,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 12:45:21,120 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 12:45:21,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 12:45:21,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 12:45:21,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 12:45:21,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 12:45:21,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 12:45:21,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 12:45:21,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 12:45:21,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 12:45:21,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 12:45:21,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 12:45:21,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 12:45:21,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 12:45:21,122 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 12:45:21,122 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 12:45:21,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 12:45:21,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 12:45:21,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 12:45:21,597 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 12:45:21,598 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 12:45:21,599 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c [2020-10-29 12:45:21,694 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5bb9941ad/56c48365b7b84e1b98d90e65b14923ef/FLAG534f94793 [2020-10-29 12:45:22,410 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 12:45:22,411 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c [2020-10-29 12:45:22,441 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5bb9941ad/56c48365b7b84e1b98d90e65b14923ef/FLAG534f94793 [2020-10-29 12:45:22,649 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5bb9941ad/56c48365b7b84e1b98d90e65b14923ef [2020-10-29 12:45:22,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 12:45:22,659 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 12:45:22,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 12:45:22,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 12:45:22,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 12:45:22,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:45:22" (1/1) ... [2020-10-29 12:45:22,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54af9fe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:45:22, skipping insertion in model container [2020-10-29 12:45:22,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:45:22" (1/1) ... [2020-10-29 12:45:22,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 12:45:22,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 12:45:23,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:45:23,108 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 12:45:23,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:45:23,322 INFO L208 MainTranslator]: Completed translation [2020-10-29 12:45:23,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:45:23 WrapperNode [2020-10-29 12:45:23,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 12:45:23,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 12:45:23,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 12:45:23,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 12:45:23,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:45:23" (1/1) ... [2020-10-29 12:45:23,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:45:23" (1/1) ... [2020-10-29 12:45:23,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:45:23" (1/1) ... [2020-10-29 12:45:23,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:45:23" (1/1) ... [2020-10-29 12:45:23,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:45:23" (1/1) ... [2020-10-29 12:45:23,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:45:23" (1/1) ... [2020-10-29 12:45:23,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:45:23" (1/1) ... [2020-10-29 12:45:23,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 12:45:23,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 12:45:23,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 12:45:23,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 12:45:23,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:45:23" (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 [2020-10-29 12:45:23,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 12:45:23,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 12:45:23,564 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 12:45:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 12:45:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-29 12:45:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-29 12:45:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-29 12:45:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-29 12:45:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-29 12:45:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-29 12:45:23,566 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 12:45:23,566 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-29 12:45:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 12:45:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 12:45:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 12:45:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 12:45:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-29 12:45:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-29 12:45:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-29 12:45:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-29 12:45:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 12:45:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-29 12:45:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-29 12:45:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-29 12:45:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-29 12:45:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-29 12:45:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-29 12:45:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-29 12:45:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-29 12:45:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 12:45:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 12:45:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 12:45:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 12:45:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 12:45:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 12:45:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 12:45:24,957 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 12:45:24,957 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 12:45:24,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:45:24 BoogieIcfgContainer [2020-10-29 12:45:24,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 12:45:24,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 12:45:24,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 12:45:24,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 12:45:24,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:45:22" (1/3) ... [2020-10-29 12:45:24,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ee356f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:45:24, skipping insertion in model container [2020-10-29 12:45:24,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:45:23" (2/3) ... [2020-10-29 12:45:24,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ee356f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:45:24, skipping insertion in model container [2020-10-29 12:45:24,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:45:24" (3/3) ... [2020-10-29 12:45:24,991 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c [2020-10-29 12:45:25,003 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 12:45:25,009 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 12:45:25,020 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 12:45:25,052 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 12:45:25,052 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 12:45:25,052 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 12:45:25,053 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 12:45:25,053 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 12:45:25,053 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 12:45:25,053 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 12:45:25,053 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 12:45:25,081 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states. [2020-10-29 12:45:25,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-29 12:45:25,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:45:25,102 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] [2020-10-29 12:45:25,102 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:45:25,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:45:25,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1190005950, now seen corresponding path program 1 times [2020-10-29 12:45:25,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:45:25,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1709682107] [2020-10-29 12:45:25,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:45:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:25,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:26,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:26,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-29 12:45:26,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:26,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 587 [2020-10-29 12:45:26,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:26,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:26,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:26,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-29 12:45:26,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:26,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 12:45:26,758 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-29 12:45:26,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:45:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:26,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:26,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:26,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:45:26,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:26,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 12:45:26,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:26,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:26,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:26,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:45:26,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:26,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:26,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:45:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:26,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:26,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:26,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-29 12:45:26,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:26,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-29 12:45:26,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:26,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:26,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:26,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:45:26,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:26,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:45:27,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 12:45:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:27,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:27,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:27,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:45:27,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:27,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:45:27,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:27,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:27,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:27,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:45:27,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:27,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:45:27,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 12:45:27,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:27,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:27,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:27,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:27,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:27,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:45:27,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:27,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:27,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:27,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:45:27,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:27,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:45:27,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 12:45:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:27,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:27,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:27,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:27,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:27,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:45:27,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:27,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:27,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:27,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:45:27,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:27,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:45:27,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 12:45:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:27,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:27,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:27,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:27,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:27,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:45:27,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:27,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:27,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:27,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:45:27,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:27,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:45:27,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 12:45:27,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:27,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:27,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:27,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:27,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:27,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:45:27,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:27,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:27,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:27,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:45:27,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:27,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:27,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:45:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:27,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:27,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:27,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:45:27,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:27,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:45:27,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:27,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:27,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:27,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:45:27,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:27,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:27,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:45:27,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1709682107] [2020-10-29 12:45:27,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:45:27,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 12:45:27,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530052904] [2020-10-29 12:45:27,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 12:45:27,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:45:27,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 12:45:27,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 12:45:27,319 INFO L87 Difference]: Start difference. First operand 370 states. Second operand 7 states. [2020-10-29 12:45:28,435 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:28,989 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:29,592 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:30,233 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:30,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:45:30,997 INFO L93 Difference]: Finished difference Result 568 states and 955 transitions. [2020-10-29 12:45:30,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 12:45:30,999 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-10-29 12:45:31,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:45:31,017 INFO L225 Difference]: With dead ends: 568 [2020-10-29 12:45:31,017 INFO L226 Difference]: Without dead ends: 403 [2020-10-29 12:45:31,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:45:31,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2020-10-29 12:45:31,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 362. [2020-10-29 12:45:31,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-10-29 12:45:31,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 622 transitions. [2020-10-29 12:45:31,144 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 622 transitions. Word has length 109 [2020-10-29 12:45:31,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:45:31,145 INFO L481 AbstractCegarLoop]: Abstraction has 362 states and 622 transitions. [2020-10-29 12:45:31,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 12:45:31,145 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 622 transitions. [2020-10-29 12:45:31,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-29 12:45:31,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:45:31,152 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] [2020-10-29 12:45:31,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 12:45:31,152 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:45:31,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:45:31,153 INFO L82 PathProgramCache]: Analyzing trace with hash 738266752, now seen corresponding path program 1 times [2020-10-29 12:45:31,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:45:31,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [406350030] [2020-10-29 12:45:31,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:45:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:31,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:32,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:32,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-29 12:45:32,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:32,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1470 [2020-10-29 12:45:32,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:32,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:32,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:45:32,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-29 12:45:32,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:45:32,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:45:33,462 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-29 12:45:33,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:45:33,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:33,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:33,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:33,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:45:33,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:33,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 12:45:33,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:33,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:33,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:33,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:45:33,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:33,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:45:33,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:45:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:33,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:33,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:33,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-29 12:45:33,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:33,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-29 12:45:33,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:33,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:33,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:45:33,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:45:33,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-29 12:45:33,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 12:45:33,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 12:45:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:33,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:33,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:33,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:45:33,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:33,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:45:33,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:33,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:33,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:45:33,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:45:33,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:45:33,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:45:34,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 12:45:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:34,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:34,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:34,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:34,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:34,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:45:34,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:34,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:34,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:34,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:45:34,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:34,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:34,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 12:45:34,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:34,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:34,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:34,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:34,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:34,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:45:34,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:34,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:34,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:34,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:45:34,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:34,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:45:34,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 12:45:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:34,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:34,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:34,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:34,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:34,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:45:34,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:34,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:34,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:34,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:45:34,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:34,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:45:34,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 12:45:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:34,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:34,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:34,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:34,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:34,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:45:34,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:34,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:34,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:34,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:45:34,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:34,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:34,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:45:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:34,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:34,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:34,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:45:34,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:34,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:45:34,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:34,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:34,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:34,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:45:34,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:34,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:45:34,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:45:34,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [406350030] [2020-10-29 12:45:34,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:45:34,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 12:45:34,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221431640] [2020-10-29 12:45:34,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 12:45:34,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:45:34,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 12:45:34,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:45:34,329 INFO L87 Difference]: Start difference. First operand 362 states and 622 transitions. Second operand 13 states. [2020-10-29 12:45:37,197 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-29 12:45:37,843 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-29 12:45:38,608 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-29 12:45:39,224 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-29 12:45:40,245 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:40,995 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:41,765 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:42,489 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:43,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:45:43,582 INFO L93 Difference]: Finished difference Result 563 states and 943 transitions. [2020-10-29 12:45:43,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 12:45:43,583 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2020-10-29 12:45:43,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:45:43,588 INFO L225 Difference]: With dead ends: 563 [2020-10-29 12:45:43,588 INFO L226 Difference]: Without dead ends: 403 [2020-10-29 12:45:43,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-29 12:45:43,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2020-10-29 12:45:43,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 362. [2020-10-29 12:45:43,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-10-29 12:45:43,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 576 transitions. [2020-10-29 12:45:43,654 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 576 transitions. Word has length 109 [2020-10-29 12:45:43,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:45:43,655 INFO L481 AbstractCegarLoop]: Abstraction has 362 states and 576 transitions. [2020-10-29 12:45:43,655 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 12:45:43,655 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 576 transitions. [2020-10-29 12:45:43,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-29 12:45:43,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:45:43,660 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, 1, 1, 1] [2020-10-29 12:45:43,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 12:45:43,661 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:45:43,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:45:43,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1916123031, now seen corresponding path program 1 times [2020-10-29 12:45:43,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:45:43,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323053823] [2020-10-29 12:45:43,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:45:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:43,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:44,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:44,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:45,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:45,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:48,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:48,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 12:45:48,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:45:48,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-29 12:45:48,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:48,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:48,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:45:48,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-29 12:45:48,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 12:45:48,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:45:49,430 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-29 12:45:49,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:45:49,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:49,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:49,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:49,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:45:49,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:49,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 12:45:49,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:49,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:49,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:49,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:45:49,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:49,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:49,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:45:49,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:49,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:49,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:49,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:45:49,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:49,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-29 12:45:49,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:49,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:49,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:45:49,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:45:49,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-29 12:45:49,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:49,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 12:45:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:49,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:49,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:49,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:45:49,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:49,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:45:49,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:49,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:49,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:45:49,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:45:49,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:45:49,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:45:49,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-29 12:45:49,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:49,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:49,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:49,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:49,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:49,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:45:49,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:49,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:49,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:45:49,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:45:49,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:45:49,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:49,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 12:45:49,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:49,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:49,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:49,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:49,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:49,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 12:45:49,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:49,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:49,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:45:49,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:45:49,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:45:49,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:45:49,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-29 12:45:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:49,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:49,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:49,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:49,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:49,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:45:49,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:49,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:49,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:49,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:45:49,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:49,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:45:50,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-29 12:45:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:50,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:50,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:50,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:45:50,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:50,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:45:50,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:50,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:50,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:50,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:45:50,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:50,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:50,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-29 12:45:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:50,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:50,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:45:50,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:45:50,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:45:50,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:45:50,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:45:50,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:45:50,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:45:50,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:45:50,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:45:50,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:45:50,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:45:50,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [323053823] [2020-10-29 12:45:50,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:45:50,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:45:50,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772290791] [2020-10-29 12:45:50,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:45:50,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:45:50,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:45:50,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:45:50,106 INFO L87 Difference]: Start difference. First operand 362 states and 576 transitions. Second operand 10 states. [2020-10-29 12:45:50,740 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-29 12:45:53,021 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-29 12:45:53,627 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:53,928 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:45:54,392 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-29 12:45:54,742 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:55,201 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-29 12:45:55,708 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:56,909 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:45:57,742 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-29 12:45:57,923 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-29 12:45:58,107 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-29 12:45:58,418 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-29 12:45:58,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:45:58,551 INFO L93 Difference]: Finished difference Result 758 states and 1212 transitions. [2020-10-29 12:45:58,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 12:45:58,552 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 154 [2020-10-29 12:45:58,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:45:58,559 INFO L225 Difference]: With dead ends: 758 [2020-10-29 12:45:58,559 INFO L226 Difference]: Without dead ends: 604 [2020-10-29 12:45:58,561 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-29 12:45:58,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2020-10-29 12:45:58,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 515. [2020-10-29 12:45:58,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2020-10-29 12:45:58,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 823 transitions. [2020-10-29 12:45:58,637 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 823 transitions. Word has length 154 [2020-10-29 12:45:58,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:45:58,639 INFO L481 AbstractCegarLoop]: Abstraction has 515 states and 823 transitions. [2020-10-29 12:45:58,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:45:58,640 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 823 transitions. [2020-10-29 12:45:58,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-29 12:45:58,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:45:58,645 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, 1, 1, 1, 1, 1, 1] [2020-10-29 12:45:58,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 12:45:58,646 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:45:58,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:45:58,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1741014847, now seen corresponding path program 1 times [2020-10-29 12:45:58,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:45:58,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [497010169] [2020-10-29 12:45:58,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:45:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:45:58,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:58,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:59,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:45:59,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:00,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:00,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:01,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:03,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:03,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-29 12:46:03,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 12:46:03,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-29 12:46:03,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:03,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:03,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:46:03,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 12:46:03,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 12:46:03,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:04,390 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-29 12:46:04,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:46:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:04,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:04,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:04,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:46:04,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:04,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:46:04,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:04,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:04,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:46:04,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:04,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:46:04,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:04,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:46:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:04,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:04,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:04,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:46:04,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:04,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-29 12:46:04,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:04,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:04,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:46:04,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:04,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:46:04,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:04,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 12:46:04,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:04,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:04,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:04,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:46:04,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:04,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:46:04,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:04,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:04,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:46:04,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:04,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:46:04,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:04,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-29 12:46:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:04,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:04,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:04,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:46:04,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:04,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:46:04,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:04,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:04,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:46:04,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:04,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:46:04,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:04,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 12:46:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:04,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:04,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:04,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 12:46:04,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:04,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:46:04,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:04,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:04,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:46:04,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 12:46:04,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:46:04,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:04,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-29 12:46:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:04,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:04,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:04,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:46:04,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:04,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:46:04,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:04,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:04,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:46:04,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:46:04,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:46:04,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:05,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-29 12:46:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:05,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:05,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:05,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:46:05,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:05,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:46:05,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:05,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:05,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:46:05,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:46:05,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:46:05,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:05,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-29 12:46:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:05,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:05,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:05,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:46:05,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:05,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:46:05,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:05,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:05,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:46:05,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:46:05,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:46:05,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:05,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:46:05,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [497010169] [2020-10-29 12:46:05,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:46:05,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:46:05,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794390680] [2020-10-29 12:46:05,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:46:05,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:46:05,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:46:05,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:46:05,134 INFO L87 Difference]: Start difference. First operand 515 states and 823 transitions. Second operand 10 states. [2020-10-29 12:46:05,826 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-29 12:46:06,472 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-29 12:46:07,344 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-29 12:46:08,041 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-29 12:46:11,984 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-29 12:46:12,328 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:46:12,559 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:46:13,495 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:46:13,778 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:46:14,657 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:46:14,859 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:46:15,732 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:46:15,960 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:46:17,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:46:17,601 INFO L93 Difference]: Finished difference Result 1651 states and 2650 transitions. [2020-10-29 12:46:17,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 12:46:17,602 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-10-29 12:46:17,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:46:17,609 INFO L225 Difference]: With dead ends: 1651 [2020-10-29 12:46:17,610 INFO L226 Difference]: Without dead ends: 1164 [2020-10-29 12:46:17,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-29 12:46:17,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1164 states. [2020-10-29 12:46:17,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1164 to 1007. [2020-10-29 12:46:17,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1007 states. [2020-10-29 12:46:17,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1592 transitions. [2020-10-29 12:46:17,727 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1592 transitions. Word has length 157 [2020-10-29 12:46:17,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:46:17,728 INFO L481 AbstractCegarLoop]: Abstraction has 1007 states and 1592 transitions. [2020-10-29 12:46:17,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:46:17,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1592 transitions. [2020-10-29 12:46:17,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-29 12:46:17,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:46:17,732 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:46:17,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 12:46:17,733 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:46:17,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:46:17,733 INFO L82 PathProgramCache]: Analyzing trace with hash -269257546, now seen corresponding path program 1 times [2020-10-29 12:46:17,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:46:17,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208133586] [2020-10-29 12:46:17,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:46:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:17,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:17,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:18,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:18,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:19,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:22,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:22,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-29 12:46:22,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:46:22,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-29 12:46:22,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:22,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:22,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:46:22,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 12:46:22,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-29 12:46:22,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:23,548 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-29 12:46:23,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:46:23,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:23,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:23,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:23,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:46:23,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:23,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:46:23,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:23,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:23,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:46:23,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:23,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:46:23,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:23,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:46:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:23,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:23,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:23,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:46:23,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:23,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-29 12:46:23,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:23,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:23,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:46:23,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:23,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:46:23,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:23,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 12:46:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:23,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:23,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:23,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:46:23,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:23,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:46:23,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:23,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:23,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:46:23,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:23,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:46:23,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:23,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-29 12:46:23,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:23,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:23,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:23,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:46:23,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:23,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:46:23,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:23,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:23,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:46:23,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:23,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:46:23,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:46:23,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 12:46:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:23,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:23,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:23,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 12:46:23,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:23,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:46:23,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:23,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:23,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:46:23,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:46:23,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:46:23,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:24,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-29 12:46:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:24,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:24,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:24,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:46:24,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:24,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:46:24,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:24,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:24,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:46:24,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:46:24,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:46:24,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:24,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-29 12:46:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:24,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:24,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:24,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:46:24,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:24,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:46:24,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:24,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:24,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:46:24,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:46:24,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:46:24,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:24,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-29 12:46:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:24,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:24,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:24,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:46:24,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:24,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:46:24,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:24,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:24,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:46:24,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:46:24,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:46:24,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:24,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:46:24,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208133586] [2020-10-29 12:46:24,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:46:24,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:46:24,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392320327] [2020-10-29 12:46:24,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:46:24,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:46:24,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:46:24,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:46:24,210 INFO L87 Difference]: Start difference. First operand 1007 states and 1592 transitions. Second operand 10 states. [2020-10-29 12:46:24,872 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-29 12:46:25,520 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-29 12:46:26,390 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-29 12:46:27,071 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-29 12:46:31,020 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-29 12:46:31,383 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:46:31,690 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:46:32,420 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:46:32,761 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:46:33,473 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:46:33,716 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:46:34,409 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:46:34,723 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:46:35,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:46:35,995 INFO L93 Difference]: Finished difference Result 3230 states and 5114 transitions. [2020-10-29 12:46:35,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 12:46:35,998 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 158 [2020-10-29 12:46:35,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:46:36,012 INFO L225 Difference]: With dead ends: 3230 [2020-10-29 12:46:36,012 INFO L226 Difference]: Without dead ends: 2276 [2020-10-29 12:46:36,016 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-29 12:46:36,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states. [2020-10-29 12:46:36,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 1977. [2020-10-29 12:46:36,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1977 states. [2020-10-29 12:46:36,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1977 states to 1977 states and 3082 transitions. [2020-10-29 12:46:36,253 INFO L78 Accepts]: Start accepts. Automaton has 1977 states and 3082 transitions. Word has length 158 [2020-10-29 12:46:36,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:46:36,254 INFO L481 AbstractCegarLoop]: Abstraction has 1977 states and 3082 transitions. [2020-10-29 12:46:36,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:46:36,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1977 states and 3082 transitions. [2020-10-29 12:46:36,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-29 12:46:36,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:46:36,261 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:46:36,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 12:46:36,261 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:46:36,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:46:36,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1771905478, now seen corresponding path program 1 times [2020-10-29 12:46:36,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:46:36,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677852929] [2020-10-29 12:46:36,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:46:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:36,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:36,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:36,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:37,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:37,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:38,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:38,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:41,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:41,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 12:46:41,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 12:46:41,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-29 12:46:41,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:41,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:41,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:46:41,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 12:46:41,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-29 12:46:41,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:42,176 WARN L193 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-29 12:46:42,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:46:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:42,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:42,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:42,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:46:42,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:42,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 12:46:42,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:42,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:42,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:46:42,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:42,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:46:42,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:42,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:46:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:42,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:42,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:42,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:46:42,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:42,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-29 12:46:42,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:42,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:42,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:46:42,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:42,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:46:42,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:46:42,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 12:46:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:42,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:42,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:42,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:46:42,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:42,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:46:42,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:42,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:42,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:46:42,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:42,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:46:42,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:46:42,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-29 12:46:42,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:42,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:42,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:42,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:46:42,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:42,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:46:42,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:42,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:42,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:46:42,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:46:42,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:46:42,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:42,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 12:46:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:42,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:42,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:42,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 12:46:42,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:42,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:46:42,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:42,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:42,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:46:42,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:46:42,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:46:42,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:42,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-29 12:46:42,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:42,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:42,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:42,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:46:42,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:42,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:46:42,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:42,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:42,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:46:42,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:46:42,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:46:42,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:42,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-29 12:46:42,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:42,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:42,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:42,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:46:42,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:42,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:46:42,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:42,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:42,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:46:42,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:46:42,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:46:42,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:42,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-29 12:46:42,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:42,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:46:42,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:46:42,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:46:42,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:46:42,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:46:42,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:46:42,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:46:42,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:46:42,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:46:42,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:46:42,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:46:43,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:46:43,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677852929] [2020-10-29 12:46:43,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:46:43,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:46:43,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082347603] [2020-10-29 12:46:43,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:46:43,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:46:43,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:46:43,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:46:43,006 INFO L87 Difference]: Start difference. First operand 1977 states and 3082 transitions. Second operand 10 states. [2020-10-29 12:46:43,739 WARN L193 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-29 12:46:44,450 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 291 [2020-10-29 12:46:45,319 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-29 12:46:47,212 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 293 DAG size of output: 291 [2020-10-29 12:46:51,812 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-29 12:46:52,277 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:46:52,565 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:46:52,963 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:46:53,683 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:46:54,117 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:46:54,666 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:46:55,386 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:46:55,647 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:46:55,954 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:46:56,747 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:46:57,133 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:46:57,491 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:46:59,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:46:59,295 INFO L93 Difference]: Finished difference Result 7712 states and 12073 transitions. [2020-10-29 12:46:59,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 12:46:59,296 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 159 [2020-10-29 12:46:59,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:46:59,326 INFO L225 Difference]: With dead ends: 7712 [2020-10-29 12:46:59,326 INFO L226 Difference]: Without dead ends: 5881 [2020-10-29 12:46:59,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:46:59,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5881 states. [2020-10-29 12:46:59,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5881 to 5151. [2020-10-29 12:46:59,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5151 states. [2020-10-29 12:46:59,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5151 states to 5151 states and 7975 transitions. [2020-10-29 12:46:59,860 INFO L78 Accepts]: Start accepts. Automaton has 5151 states and 7975 transitions. Word has length 159 [2020-10-29 12:46:59,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:46:59,861 INFO L481 AbstractCegarLoop]: Abstraction has 5151 states and 7975 transitions. [2020-10-29 12:46:59,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:46:59,861 INFO L276 IsEmpty]: Start isEmpty. Operand 5151 states and 7975 transitions. [2020-10-29 12:46:59,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-29 12:46:59,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:46:59,875 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:46:59,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 12:46:59,875 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:46:59,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:46:59,876 INFO L82 PathProgramCache]: Analyzing trace with hash -810224384, now seen corresponding path program 1 times [2020-10-29 12:46:59,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:46:59,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1891890284] [2020-10-29 12:46:59,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:46:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:46:59,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:00,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:00,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:00,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:01,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:02,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:02,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:04,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:04,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-29 12:47:04,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 12:47:04,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 12:47:04,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:04,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:04,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:47:04,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-29 12:47:04,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 12:47:04,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:05,565 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-29 12:47:05,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:47:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:05,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:05,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:05,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:47:05,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:05,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:47:05,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:05,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:05,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:47:05,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:05,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:47:05,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:05,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:47:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:05,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:05,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:05,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:47:05,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:05,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 12:47:05,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:05,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:05,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:47:05,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:05,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 12:47:05,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:05,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 12:47:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:05,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:05,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:05,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:47:05,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:05,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:47:05,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:05,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:05,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:47:05,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:05,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:47:05,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:05,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-29 12:47:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:05,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:05,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:05,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:47:05,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:05,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:47:05,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:05,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:05,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:47:05,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:05,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:47:05,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:05,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 12:47:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:05,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:05,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:05,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:47:05,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:05,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:47:05,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:05,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:05,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:47:05,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:05,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 12:47:05,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:05,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-29 12:47:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:05,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:05,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:05,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:47:05,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:05,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:47:05,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:05,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:05,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:47:05,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:47:05,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:47:05,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:05,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-29 12:47:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:05,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:05,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:05,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:47:05,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:05,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:47:05,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:05,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:05,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:47:05,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:47:05,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:47:05,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:05,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-29 12:47:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:05,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:05,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:05,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:47:05,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:05,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:47:05,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:05,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:05,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:47:05,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:47:05,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:47:05,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:06,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:47:06,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1891890284] [2020-10-29 12:47:06,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:47:06,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:47:06,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964251597] [2020-10-29 12:47:06,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:47:06,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:47:06,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:47:06,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:47:06,046 INFO L87 Difference]: Start difference. First operand 5151 states and 7975 transitions. Second operand 10 states. [2020-10-29 12:47:06,710 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-29 12:47:09,314 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-29 12:47:09,984 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-29 12:47:10,679 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:47:11,017 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:47:11,586 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-29 12:47:12,026 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:47:13,468 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:47:13,943 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:47:14,922 WARN L193 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-29 12:47:15,136 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-29 12:47:15,339 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-29 12:47:15,693 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-29 12:47:15,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:47:15,853 INFO L93 Difference]: Finished difference Result 12501 states and 19587 transitions. [2020-10-29 12:47:15,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 12:47:15,857 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 160 [2020-10-29 12:47:15,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:47:15,909 INFO L225 Difference]: With dead ends: 12501 [2020-10-29 12:47:15,909 INFO L226 Difference]: Without dead ends: 9590 [2020-10-29 12:47:15,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-29 12:47:15,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9590 states. [2020-10-29 12:47:16,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9590 to 8047. [2020-10-29 12:47:16,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8047 states. [2020-10-29 12:47:16,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8047 states to 8047 states and 12519 transitions. [2020-10-29 12:47:16,708 INFO L78 Accepts]: Start accepts. Automaton has 8047 states and 12519 transitions. Word has length 160 [2020-10-29 12:47:16,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:47:16,708 INFO L481 AbstractCegarLoop]: Abstraction has 8047 states and 12519 transitions. [2020-10-29 12:47:16,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:47:16,709 INFO L276 IsEmpty]: Start isEmpty. Operand 8047 states and 12519 transitions. [2020-10-29 12:47:16,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-29 12:47:16,728 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:47:16,729 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:47:16,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 12:47:16,729 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:47:16,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:47:16,730 INFO L82 PathProgramCache]: Analyzing trace with hash 994536143, now seen corresponding path program 1 times [2020-10-29 12:47:16,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:47:16,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1887341147] [2020-10-29 12:47:16,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:47:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:16,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:17,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:17,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:17,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:17,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:17,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:17,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:18,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:18,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:21,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:21,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-29 12:47:21,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 12:47:21,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-29 12:47:21,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:21,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:21,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:47:21,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 12:47:21,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-29 12:47:21,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:22,632 WARN L193 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-29 12:47:22,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:47:22,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:22,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:22,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:22,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:47:22,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:22,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:47:22,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:22,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:47:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:47:22,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:22,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:47:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:22,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:22,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:22,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:47:22,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:22,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-29 12:47:22,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:22,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:22,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:47:22,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:22,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 12:47:22,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:47:23,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 12:47:23,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:23,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:23,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:23,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:47:23,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:23,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:47:23,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:23,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:23,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:47:23,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:23,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:47:23,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:23,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-29 12:47:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:23,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:23,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:23,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:47:23,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:23,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:47:23,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:23,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:23,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:47:23,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:23,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:47:23,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:23,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 12:47:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:23,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:23,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:23,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:47:23,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:23,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:47:23,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:23,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:23,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:47:23,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:23,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 12:47:23,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:23,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-29 12:47:23,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:23,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:23,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:23,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 12:47:23,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:23,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:47:23,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:23,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:23,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:47:23,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 12:47:23,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:47:23,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:23,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-29 12:47:23,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:23,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:23,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:23,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:47:23,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:23,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:47:23,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:23,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:23,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:47:23,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:47:23,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:47:23,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:23,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-29 12:47:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:23,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:23,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:23,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:47:23,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:23,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:47:23,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:23,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:23,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:47:23,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:47:23,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:47:23,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:23,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:47:23,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1887341147] [2020-10-29 12:47:23,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:47:23,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:47:23,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424405002] [2020-10-29 12:47:23,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:47:23,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:47:23,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:47:23,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:47:23,394 INFO L87 Difference]: Start difference. First operand 8047 states and 12519 transitions. Second operand 10 states. [2020-10-29 12:47:24,056 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-29 12:47:24,763 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 292 [2020-10-29 12:47:26,176 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 294 DAG size of output: 288 [2020-10-29 12:47:26,943 WARN L193 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 295 [2020-10-29 12:47:33,235 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-29 12:47:33,657 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:47:33,956 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:47:34,451 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:47:35,072 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:47:35,591 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:47:36,023 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:47:36,960 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:47:37,306 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:47:37,514 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:47:38,414 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:47:38,698 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:47:39,288 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:47:41,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:47:41,014 INFO L93 Difference]: Finished difference Result 30440 states and 47559 transitions. [2020-10-29 12:47:41,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 12:47:41,015 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-10-29 12:47:41,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:47:41,117 INFO L225 Difference]: With dead ends: 30440 [2020-10-29 12:47:41,118 INFO L226 Difference]: Without dead ends: 22617 [2020-10-29 12:47:41,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:47:41,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22617 states. [2020-10-29 12:47:42,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22617 to 19619. [2020-10-29 12:47:42,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19619 states. [2020-10-29 12:47:42,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19619 states to 19619 states and 30145 transitions. [2020-10-29 12:47:42,714 INFO L78 Accepts]: Start accepts. Automaton has 19619 states and 30145 transitions. Word has length 163 [2020-10-29 12:47:42,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:47:42,714 INFO L481 AbstractCegarLoop]: Abstraction has 19619 states and 30145 transitions. [2020-10-29 12:47:42,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:47:42,714 INFO L276 IsEmpty]: Start isEmpty. Operand 19619 states and 30145 transitions. [2020-10-29 12:47:42,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-29 12:47:42,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:47:42,753 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:47:42,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 12:47:42,753 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:47:42,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:47:42,754 INFO L82 PathProgramCache]: Analyzing trace with hash 157850369, now seen corresponding path program 1 times [2020-10-29 12:47:42,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:47:42,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1901239844] [2020-10-29 12:47:42,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:47:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:42,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:43,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:43,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:43,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:44,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:44,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:46,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:46,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:47,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:47,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:47,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-29 12:47:47,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 12:47:47,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5101 [2020-10-29 12:47:47,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:47,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:47,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:47:47,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 12:47:47,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-29 12:47:47,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:48,745 WARN L193 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-29 12:47:48,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:47:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:48,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:48,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:48,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:47:48,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:48,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:47:48,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:48,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:48,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:47:48,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:48,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:47:48,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:48,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:47:48,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:48,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:48,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:48,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:47:48,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:48,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-29 12:47:48,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:48,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:47:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:47:48,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:49,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 12:47:49,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:49,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:49,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:49,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:47:49,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:49,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:47:49,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:49,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:49,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:47:49,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:49,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:47:49,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:49,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-29 12:47:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:49,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:49,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:49,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:47:49,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:49,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:47:49,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:49,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:49,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:47:49,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:49,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:47:49,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:49,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 12:47:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:49,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:49,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:49,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:47:49,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:49,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:47:49,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:49,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:49,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:47:49,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:47:49,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 12:47:49,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:49,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-29 12:47:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:49,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:49,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:49,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 12:47:49,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:49,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:47:49,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:49,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:49,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:47:49,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:47:49,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:47:49,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:49,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-29 12:47:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:49,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:49,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:49,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:47:49,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:49,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:47:49,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:49,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:49,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:47:49,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:47:49,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:47:49,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:49,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-29 12:47:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:47:49,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:47:49,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:47:49,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:47:49,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:47:49,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:47:49,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:47:49,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:47:49,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:47:49,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:47:49,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:47:49,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:47:49,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:47:49,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1901239844] [2020-10-29 12:47:49,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:47:49,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:47:49,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060790072] [2020-10-29 12:47:49,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:47:49,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:47:49,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:47:49,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:47:49,440 INFO L87 Difference]: Start difference. First operand 19619 states and 30145 transitions. Second operand 10 states. [2020-10-29 12:47:50,090 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-29 12:47:50,764 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-29 12:47:51,791 WARN L193 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-29 12:47:53,100 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 292 DAG size of output: 288 [2020-10-29 12:47:59,560 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-29 12:48:00,095 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:48:00,413 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:48:00,981 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:48:01,601 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:48:02,191 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:48:02,824 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:48:03,831 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:48:04,182 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:48:04,689 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:48:05,425 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:48:05,787 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:48:06,265 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:48:09,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:48:09,144 INFO L93 Difference]: Finished difference Result 73285 states and 113101 transitions. [2020-10-29 12:48:09,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 12:48:09,145 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 164 [2020-10-29 12:48:09,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:48:09,340 INFO L225 Difference]: With dead ends: 73285 [2020-10-29 12:48:09,340 INFO L226 Difference]: Without dead ends: 54553 [2020-10-29 12:48:09,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:48:09,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54553 states. [2020-10-29 12:48:13,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54553 to 47781. [2020-10-29 12:48:13,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47781 states. [2020-10-29 12:48:13,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47781 states to 47781 states and 72703 transitions. [2020-10-29 12:48:13,372 INFO L78 Accepts]: Start accepts. Automaton has 47781 states and 72703 transitions. Word has length 164 [2020-10-29 12:48:13,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:48:13,373 INFO L481 AbstractCegarLoop]: Abstraction has 47781 states and 72703 transitions. [2020-10-29 12:48:13,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:48:13,373 INFO L276 IsEmpty]: Start isEmpty. Operand 47781 states and 72703 transitions. [2020-10-29 12:48:13,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-29 12:48:13,430 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:48:13,431 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:48:13,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 12:48:13,431 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:48:13,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:48:13,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1468171924, now seen corresponding path program 1 times [2020-10-29 12:48:13,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:48:13,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [547312608] [2020-10-29 12:48:13,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:48:13,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:48:13,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:13,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:13,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:13,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:14,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:15,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:17,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:17,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:18,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:48:18,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-29 12:48:18,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 12:48:18,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-29 12:48:18,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:48:18,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:48:18,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:48:18,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 12:48:18,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-29 12:48:18,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:48:19,222 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-29 12:48:19,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:48:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:48:19,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:19,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:48:19,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:48:19,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:48:19,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 12:48:19,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:48:19,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:48:19,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:48:19,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:48:19,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:48:19,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:48:19,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:48:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:48:19,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:19,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:48:19,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:48:19,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:48:19,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-29 12:48:19,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:48:19,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:48:19,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:48:19,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:48:19,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 12:48:19,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:48:19,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 12:48:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:48:19,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:19,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:48:19,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:48:19,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:48:19,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:48:19,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:48:19,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:48:19,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:48:19,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:48:19,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:48:19,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:48:19,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-29 12:48:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:48:19,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:19,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:48:19,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:48:19,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:48:19,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:48:19,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:48:19,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:48:19,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:48:19,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:48:19,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:48:19,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:48:19,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 12:48:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:48:19,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:19,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:48:19,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:48:19,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:48:19,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:48:19,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:48:19,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:48:19,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:48:19,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:48:19,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 12:48:19,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:48:19,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-29 12:48:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:48:19,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:19,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:48:19,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 12:48:19,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:48:19,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:48:19,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:48:19,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:48:19,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:48:19,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-29 12:48:19,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:48:19,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:48:19,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-29 12:48:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:48:19,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:19,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:48:19,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:48:19,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:48:19,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:48:19,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:48:19,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:48:19,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:48:19,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:48:19,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:48:19,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:48:19,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-29 12:48:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:48:19,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:19,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:48:19,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:48:19,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:48:19,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:48:19,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:48:19,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:48:19,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:48:19,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:48:19,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:48:19,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:48:19,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:48:19,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [547312608] [2020-10-29 12:48:19,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:48:19,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:48:19,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164326010] [2020-10-29 12:48:19,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:48:19,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:48:19,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:48:19,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:48:19,957 INFO L87 Difference]: Start difference. First operand 47781 states and 72703 transitions. Second operand 10 states. [2020-10-29 12:48:20,670 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-29 12:48:21,418 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 292 [2020-10-29 12:48:22,429 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 295 [2020-10-29 12:48:23,925 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 294 DAG size of output: 288 [2020-10-29 12:48:34,013 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-29 12:48:34,530 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:48:34,875 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:48:35,493 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:48:36,074 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:48:36,721 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:48:37,407 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:48:38,456 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:48:38,805 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:48:39,266 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:48:40,307 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:48:40,638 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:48:40,992 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:48:45,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:48:45,895 INFO L93 Difference]: Finished difference Result 193689 states and 296753 transitions. [2020-10-29 12:48:45,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 12:48:45,896 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 165 [2020-10-29 12:48:45,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:48:46,692 INFO L225 Difference]: With dead ends: 193689 [2020-10-29 12:48:46,693 INFO L226 Difference]: Without dead ends: 146559 [2020-10-29 12:48:46,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:48:46,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146559 states. [2020-10-29 12:48:56,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146559 to 129163. [2020-10-29 12:48:56,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129163 states. [2020-10-29 12:48:57,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129163 states to 129163 states and 195284 transitions. [2020-10-29 12:48:57,540 INFO L78 Accepts]: Start accepts. Automaton has 129163 states and 195284 transitions. Word has length 165 [2020-10-29 12:48:57,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:48:57,541 INFO L481 AbstractCegarLoop]: Abstraction has 129163 states and 195284 transitions. [2020-10-29 12:48:57,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:48:57,541 INFO L276 IsEmpty]: Start isEmpty. Operand 129163 states and 195284 transitions. [2020-10-29 12:48:57,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-29 12:48:57,672 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:48:57,673 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:48:57,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 12:48:57,673 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:48:57,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:48:57,673 INFO L82 PathProgramCache]: Analyzing trace with hash 966411543, now seen corresponding path program 1 times [2020-10-29 12:48:57,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:48:57,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1632751946] [2020-10-29 12:48:57,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:48:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:48:57,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:58,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:48:58,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking...