/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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=0.2 --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 -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:38:06,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:38:06,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:38:06,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:38:06,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:38:06,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:38:06,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:38:06,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:38:06,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:38:06,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:38:06,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:38:06,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:38:06,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:38:06,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:38:06,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:38:06,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:38:06,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:38:06,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:38:06,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:38:06,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:38:06,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:38:06,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:38:06,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:38:06,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:38:06,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:38:06,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:38:06,740 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:38:06,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:38:06,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:38:06,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:38:06,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:38:06,743 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:38:06,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:38:06,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:38:06,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:38:06,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:38:06,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:38:06,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:38:06,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:38:06,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:38:06,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:38:06,749 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 [2020-10-15 02:38:06,770 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:38:06,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:38:06,772 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:38:06,772 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:38:06,772 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:38:06,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:38:06,773 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:38:06,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:38:06,773 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:38:06,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:38:06,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:38:06,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:38:06,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:38:06,774 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:38:06,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:38:06,774 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:38:06,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:38:06,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:38:06,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:38:06,775 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:38:06,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:38:06,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:38:06,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:38:06,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:38:06,776 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:38:06,776 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:38:06,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:38:06,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:38:06,777 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:38:06,777 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:38:07,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:38:07,125 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:38:07,128 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:38:07,130 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:38:07,131 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:38:07,131 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c [2020-10-15 02:38:07,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf501bbda/df99a53b3e764ce7818c1e243f41ae14/FLAGa56a8ef98 [2020-10-15 02:38:07,670 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:38:07,671 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c [2020-10-15 02:38:07,682 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf501bbda/df99a53b3e764ce7818c1e243f41ae14/FLAGa56a8ef98 [2020-10-15 02:38:07,700 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf501bbda/df99a53b3e764ce7818c1e243f41ae14 [2020-10-15 02:38:07,710 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:38:07,712 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:38:07,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:38:07,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:38:07,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:38:07,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:38:07" (1/1) ... [2020-10-15 02:38:07,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b26f9c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:07, skipping insertion in model container [2020-10-15 02:38:07,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:38:07" (1/1) ... [2020-10-15 02:38:07,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:38:07,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:38:08,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:38:08,184 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:38:08,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:38:08,251 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:38:08,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:08 WrapperNode [2020-10-15 02:38:08,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:38:08,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:38:08,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:38:08,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:38:08,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:08" (1/1) ... [2020-10-15 02:38:08,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:08" (1/1) ... [2020-10-15 02:38:08,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:08" (1/1) ... [2020-10-15 02:38:08,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:08" (1/1) ... [2020-10-15 02:38:08,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:08" (1/1) ... [2020-10-15 02:38:08,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:08" (1/1) ... [2020-10-15 02:38:08,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:08" (1/1) ... [2020-10-15 02:38:08,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:38:08,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:38:08,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:38:08,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:38:08,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:08" (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 [2020-10-15 02:38:08,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:38:08,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:38:08,398 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:38:08,398 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:38:08,399 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:38:08,399 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:38:08,399 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-15 02:38:08,399 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:38:08,399 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:38:08,399 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:38:08,400 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:38:08,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:38:08,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:38:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:38:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 02:38:08,403 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:38:08,403 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:38:08,403 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:38:08,404 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:38:08,404 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:38:08,405 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:38:08,405 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:38:08,405 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:38:08,405 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 02:38:08,407 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:38:08,407 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:38:08,408 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:38:08,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:38:08,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:38:09,077 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:38:09,077 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:38:09,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:38:09 BoogieIcfgContainer [2020-10-15 02:38:09,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:38:09,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:38:09,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:38:09,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:38:09,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:38:07" (1/3) ... [2020-10-15 02:38:09,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52cd91d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:38:09, skipping insertion in model container [2020-10-15 02:38:09,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:08" (2/3) ... [2020-10-15 02:38:09,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52cd91d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:38:09, skipping insertion in model container [2020-10-15 02:38:09,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:38:09" (3/3) ... [2020-10-15 02:38:09,093 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c [2020-10-15 02:38:09,105 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:38:09,113 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:38:09,129 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:38:09,157 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:38:09,157 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:38:09,157 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:38:09,157 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:38:09,158 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:38:09,158 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:38:09,158 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:38:09,158 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:38:09,182 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states. [2020-10-15 02:38:09,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-15 02:38:09,194 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:38:09,198 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] [2020-10-15 02:38:09,198 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:38:09,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:38:09,206 INFO L82 PathProgramCache]: Analyzing trace with hash -40239445, now seen corresponding path program 1 times [2020-10-15 02:38:09,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:38:09,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1502542842] [2020-10-15 02:38:09,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:38:09,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:09,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:09,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:09,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-15 02:38:09,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:09,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-10-15 02:38:09,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:09,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:09,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:09,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-15 02:38:09,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:09,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-15 02:38:09,982 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-15 02:38:09,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:38:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:09,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:10,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:10,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:38:10,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:10,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:38:10,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:10,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:10,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:10,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:10,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:10,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:10,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:38:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:10,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:10,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:10,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:38:10,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:10,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:38:10,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:10,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:10,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:10,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:10,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:10,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:10,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 02:38:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:10,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:10,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:10,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:38:10,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:10,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:38:10,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:10,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:10,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:10,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:38:10,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:10,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:10,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-15 02:38:10,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:10,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:10,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:10,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:38:10,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:10,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:38:10,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:10,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:10,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:10,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:38:10,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:10,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:10,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:38:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:10,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:10,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:10,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:10,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:10,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:38:10,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:10,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:10,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:10,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:10,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:10,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:10,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:38:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:10,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:10,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:10,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:10,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:10,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:38:10,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:10,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:10,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:10,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:10,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:10,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:10,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:38:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:10,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:10,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:10,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:10,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:10,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:38:10,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:10,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:10,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:10,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:10,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:10,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:10,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-15 02:38:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:10,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:10,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:10,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:38:10,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:10,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:38:10,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:10,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:10,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:10,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:38:10,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:10,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:10,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:38:10,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1502542842] [2020-10-15 02:38:10,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:38:10,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 02:38:10,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067978280] [2020-10-15 02:38:10,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 02:38:10,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:38:10,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 02:38:10,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 02:38:10,238 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 7 states. [2020-10-15 02:38:11,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:38:11,138 INFO L93 Difference]: Finished difference Result 231 states and 342 transitions. [2020-10-15 02:38:11,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 02:38:11,140 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2020-10-15 02:38:11,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:38:11,152 INFO L225 Difference]: With dead ends: 231 [2020-10-15 02:38:11,152 INFO L226 Difference]: Without dead ends: 135 [2020-10-15 02:38:11,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:38:11,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-15 02:38:11,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 130. [2020-10-15 02:38:11,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-15 02:38:11,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 194 transitions. [2020-10-15 02:38:11,217 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 194 transitions. Word has length 61 [2020-10-15 02:38:11,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:38:11,218 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 194 transitions. [2020-10-15 02:38:11,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 02:38:11,218 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 194 transitions. [2020-10-15 02:38:11,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-15 02:38:11,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:38:11,221 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] [2020-10-15 02:38:11,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:38:11,222 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:38:11,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:38:11,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1888033257, now seen corresponding path program 1 times [2020-10-15 02:38:11,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:38:11,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1733130813] [2020-10-15 02:38:11,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:38:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:11,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:11,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:11,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-15 02:38:11,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:11,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 541 [2020-10-15 02:38:11,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:11,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:11,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:38:11,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 02:38:11,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:38:11,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:11,976 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-15 02:38:11,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:38:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:11,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:11,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:11,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:38:11,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:11,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:38:11,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:11,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:11,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:11,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:11,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:11,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:12,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:38:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:12,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:12,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:12,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:38:12,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:12,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:38:12,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:12,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:12,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:38:12,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:12,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:38:12,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 02:38:12,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 02:38:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:12,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:12,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:12,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:38:12,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:12,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:38:12,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:12,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:12,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:38:12,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:38:12,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:38:12,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:12,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-15 02:38:12,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:12,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:12,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:12,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:38:12,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:12,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:38:12,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:12,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:12,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:12,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:38:12,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:12,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:12,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:38:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:12,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:12,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:12,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:12,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:12,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:38:12,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:12,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:12,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:12,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:12,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:12,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:12,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:38:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:12,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:12,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:12,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:12,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:12,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:38:12,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:12,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:12,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:12,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:12,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:12,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:12,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:38:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:12,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:12,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:12,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:12,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:12,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:38:12,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:12,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:12,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:12,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:12,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:12,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:12,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-15 02:38:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:12,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:12,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:12,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:38:12,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:12,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:38:12,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:12,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:12,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:12,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:38:12,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:12,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:12,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:38:12,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1733130813] [2020-10-15 02:38:12,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:38:12,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:38:12,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304412310] [2020-10-15 02:38:12,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:38:12,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:38:12,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:38:12,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:38:12,292 INFO L87 Difference]: Start difference. First operand 130 states and 194 transitions. Second operand 13 states. [2020-10-15 02:38:12,475 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-15 02:38:12,913 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-15 02:38:14,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:38:14,218 INFO L93 Difference]: Finished difference Result 229 states and 334 transitions. [2020-10-15 02:38:14,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 02:38:14,218 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 61 [2020-10-15 02:38:14,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:38:14,221 INFO L225 Difference]: With dead ends: 229 [2020-10-15 02:38:14,221 INFO L226 Difference]: Without dead ends: 135 [2020-10-15 02:38:14,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-15 02:38:14,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-15 02:38:14,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 130. [2020-10-15 02:38:14,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-15 02:38:14,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 170 transitions. [2020-10-15 02:38:14,262 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 170 transitions. Word has length 61 [2020-10-15 02:38:14,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:38:14,262 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 170 transitions. [2020-10-15 02:38:14,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:38:14,263 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 170 transitions. [2020-10-15 02:38:14,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-15 02:38:14,269 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:38:14,270 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] [2020-10-15 02:38:14,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:38:14,270 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:38:14,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:38:14,271 INFO L82 PathProgramCache]: Analyzing trace with hash -571472210, now seen corresponding path program 1 times [2020-10-15 02:38:14,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:38:14,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1138974289] [2020-10-15 02:38:14,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:38:14,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:14,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:14,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:14,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:15,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:19,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:19,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-15 02:38:19,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:38:19,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 02:38:19,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:19,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:19,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:38:19,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-15 02:38:19,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-15 02:38:19,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:19,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:38:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:19,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:19,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:19,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:38:19,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:19,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:38:19,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:19,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:19,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:19,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:19,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:19,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 02:38:19,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:38:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:19,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:19,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:19,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:38:19,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:19,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-15 02:38:19,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:19,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:19,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:38:19,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:19,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 02:38:19,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:19,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 02:38:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:19,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:19,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:19,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:38:19,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:19,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:38:19,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:19,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:19,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:19,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:19,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:38:19,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:19,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:38:19,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:19,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:19,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:19,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:38:19,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:19,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:38:19,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:19,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:19,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:38:19,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:38:19,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:38:19,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:19,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:38:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:19,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:19,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:19,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:19,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:19,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:38:19,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:19,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:19,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:38:19,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:38:19,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:38:19,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:19,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:38:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:19,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:19,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:19,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:19,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:19,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:38:19,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:19,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:19,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:38:19,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:38:19,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:38:19,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:19,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 02:38:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:19,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:19,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:19,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:19,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:19,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:38:19,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:19,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:19,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:38:19,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:38:19,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:38:19,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:19,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:38:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:19,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:19,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:19,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:38:19,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:19,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:38:19,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:19,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:19,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:19,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:38:19,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:38:19,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:19,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:38:19,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1138974289] [2020-10-15 02:38:19,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:38:19,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-15 02:38:19,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922491724] [2020-10-15 02:38:19,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 02:38:19,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:38:19,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 02:38:19,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-10-15 02:38:19,996 INFO L87 Difference]: Start difference. First operand 130 states and 170 transitions. Second operand 16 states. [2020-10-15 02:38:20,400 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-15 02:38:23,275 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:38:23,396 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-15 02:38:30,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:38:30,841 INFO L93 Difference]: Finished difference Result 1196 states and 1862 transitions. [2020-10-15 02:38:30,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2020-10-15 02:38:30,842 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 84 [2020-10-15 02:38:30,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:38:30,859 INFO L225 Difference]: With dead ends: 1196 [2020-10-15 02:38:30,860 INFO L226 Difference]: Without dead ends: 1108 [2020-10-15 02:38:30,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3302 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1907, Invalid=7023, Unknown=0, NotChecked=0, Total=8930 [2020-10-15 02:38:30,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2020-10-15 02:38:31,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 849. [2020-10-15 02:38:31,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2020-10-15 02:38:31,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1230 transitions. [2020-10-15 02:38:31,047 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1230 transitions. Word has length 84 [2020-10-15 02:38:31,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:38:31,048 INFO L479 AbstractCegarLoop]: Abstraction has 849 states and 1230 transitions. [2020-10-15 02:38:31,048 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 02:38:31,048 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1230 transitions. [2020-10-15 02:38:31,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-15 02:38:31,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:38:31,053 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] [2020-10-15 02:38:31,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:38:31,053 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:38:31,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:38:31,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1853525755, now seen corresponding path program 1 times [2020-10-15 02:38:31,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:38:31,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932053150] [2020-10-15 02:38:31,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:38:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:31,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:31,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:31,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:31,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:36,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:36,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-15 02:38:36,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:38:36,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 02:38:36,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:36,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:36,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:38:36,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-15 02:38:36,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-15 02:38:36,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:36,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:38:36,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:36,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:36,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:36,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:38:36,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:36,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:38:36,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:36,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:36,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:36,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:36,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:36,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:36,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:38:36,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:36,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:36,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:36,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:38:36,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:36,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 02:38:36,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:36,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:36,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:36,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:36,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:38:36,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-15 02:38:36,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 02:38:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:36,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:36,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:36,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:38:36,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:36,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:38:36,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:36,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:36,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:36,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:36,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:38:36,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:36,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:38:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:36,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:36,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:36,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:38:36,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:36,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:38:36,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:36,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:36,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:36,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:36,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:38:36,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:36,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:38:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:36,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:36,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:36,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:36,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:36,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:38:36,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:36,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:36,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:38:36,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:38:36,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:38:36,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:36,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:38:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:36,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:36,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:36,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:36,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:36,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:38:36,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:36,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:36,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:36,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:36,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:36,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:36,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 02:38:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:36,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:36,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:36,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:36,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:36,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:38:36,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:36,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:36,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:36,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:36,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:36,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:36,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:38:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:36,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:36,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:36,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:36,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:36,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:38:36,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:36,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:36,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:36,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:36,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:36,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:36,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:38:36,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [932053150] [2020-10-15 02:38:36,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:38:36,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:38:36,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246312523] [2020-10-15 02:38:36,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:38:36,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:38:36,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:38:36,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:38:36,503 INFO L87 Difference]: Start difference. First operand 849 states and 1230 transitions. Second operand 10 states. [2020-10-15 02:38:38,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:38:38,155 INFO L93 Difference]: Finished difference Result 2427 states and 3519 transitions. [2020-10-15 02:38:38,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 02:38:38,156 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-10-15 02:38:38,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:38:38,167 INFO L225 Difference]: With dead ends: 2427 [2020-10-15 02:38:38,168 INFO L226 Difference]: Without dead ends: 1620 [2020-10-15 02:38:38,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2020-10-15 02:38:38,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2020-10-15 02:38:38,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1537. [2020-10-15 02:38:38,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1537 states. [2020-10-15 02:38:38,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1537 states to 1537 states and 2222 transitions. [2020-10-15 02:38:38,275 INFO L78 Accepts]: Start accepts. Automaton has 1537 states and 2222 transitions. Word has length 85 [2020-10-15 02:38:38,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:38:38,276 INFO L479 AbstractCegarLoop]: Abstraction has 1537 states and 2222 transitions. [2020-10-15 02:38:38,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:38:38,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1537 states and 2222 transitions. [2020-10-15 02:38:38,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-15 02:38:38,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:38:38,278 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] [2020-10-15 02:38:38,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:38:38,278 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:38:38,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:38:38,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1496971575, now seen corresponding path program 1 times [2020-10-15 02:38:38,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:38:38,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [562340170] [2020-10-15 02:38:38,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:38:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:38,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:38,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:38,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:41,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:41,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-15 02:38:41,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:38:41,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3303 [2020-10-15 02:38:41,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:41,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:41,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:38:41,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-15 02:38:41,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-15 02:38:41,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:41,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:38:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:41,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:41,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:41,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:38:41,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:41,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:38:41,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:41,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:41,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:41,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:41,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:41,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:41,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:38:41,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:41,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:41,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:41,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:38:41,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:41,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:38:41,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:41,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:41,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:41,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:41,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 02:38:41,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:41,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 02:38:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:41,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:41,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:41,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:38:41,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:41,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:38:41,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:41,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:41,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:41,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:41,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:38:41,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:41,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:38:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:41,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:41,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:41,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:38:41,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:41,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:38:41,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:41,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:41,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:41,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:41,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:38:41,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:41,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:38:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:41,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:41,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:41,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:38:41,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:41,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:38:41,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:41,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:41,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:41,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:41,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:38:41,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:41,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:38:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:41,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:41,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:41,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:41,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:41,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 02:38:41,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:41,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:41,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:38:41,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:38:41,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:38:41,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:41,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:38:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:41,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:41,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:41,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:41,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:41,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:38:41,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:41,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:41,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:41,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:41,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:41,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:41,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-15 02:38:41,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:41,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:41,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:41,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:41,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:41,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:38:41,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:41,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:41,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:41,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:41,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:41,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:41,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:38:41,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [562340170] [2020-10-15 02:38:41,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:38:41,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:38:41,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772118380] [2020-10-15 02:38:41,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:38:41,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:38:41,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:38:41,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:38:41,964 INFO L87 Difference]: Start difference. First operand 1537 states and 2222 transitions. Second operand 10 states. [2020-10-15 02:38:43,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:38:43,652 INFO L93 Difference]: Finished difference Result 4431 states and 6386 transitions. [2020-10-15 02:38:43,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 02:38:43,653 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-10-15 02:38:43,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:38:43,671 INFO L225 Difference]: With dead ends: 4431 [2020-10-15 02:38:43,671 INFO L226 Difference]: Without dead ends: 2936 [2020-10-15 02:38:43,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2020-10-15 02:38:43,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2020-10-15 02:38:43,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 2790. [2020-10-15 02:38:43,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2790 states. [2020-10-15 02:38:43,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2790 states to 2790 states and 4007 transitions. [2020-10-15 02:38:43,886 INFO L78 Accepts]: Start accepts. Automaton has 2790 states and 4007 transitions. Word has length 86 [2020-10-15 02:38:43,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:38:43,886 INFO L479 AbstractCegarLoop]: Abstraction has 2790 states and 4007 transitions. [2020-10-15 02:38:43,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:38:43,887 INFO L276 IsEmpty]: Start isEmpty. Operand 2790 states and 4007 transitions. [2020-10-15 02:38:43,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-15 02:38:43,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:38:43,893 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] [2020-10-15 02:38:43,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:38:43,894 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:38:43,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:38:43,894 INFO L82 PathProgramCache]: Analyzing trace with hash 581237151, now seen corresponding path program 1 times [2020-10-15 02:38:43,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:38:43,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883634586] [2020-10-15 02:38:43,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:38:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:43,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:43,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:44,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:44,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-15 02:38:44,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:38:44,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 900 [2020-10-15 02:38:44,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:44,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:44,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:38:44,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-15 02:38:44,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:38:44,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:44,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:38:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:44,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:44,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:44,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:38:44,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:44,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:38:44,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:44,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:44,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:44,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:44,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:44,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:44,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:38:44,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:44,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:44,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:44,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:38:44,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:44,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:38:44,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:44,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:44,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:44,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:44,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 02:38:44,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:44,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 02:38:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:44,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:44,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:45,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:38:45,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:45,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:38:45,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:45,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:45,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:45,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:45,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:38:45,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:45,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:38:45,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:45,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:45,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:45,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:38:45,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:45,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:38:45,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:45,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:45,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:45,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:45,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:38:45,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:45,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:38:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:45,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:45,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:45,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:38:45,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:45,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:38:45,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:45,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:45,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:45,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:45,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:38:45,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:45,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:38:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:45,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:45,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:45,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:38:45,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:45,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:38:45,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:45,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:45,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:45,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:45,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:38:45,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:45,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-15 02:38:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:45,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:45,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:45,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:45,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:45,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:38:45,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:45,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:45,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:38:45,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:38:45,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:38:45,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:45,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:38:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:45,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:45,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:45,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:45,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:45,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:38:45,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:45,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:45,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:45,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:45,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:45,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:45,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:38:45,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883634586] [2020-10-15 02:38:45,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:38:45,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:38:45,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823589824] [2020-10-15 02:38:45,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:38:45,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:38:45,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:38:45,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:38:45,160 INFO L87 Difference]: Start difference. First operand 2790 states and 4007 transitions. Second operand 10 states. [2020-10-15 02:38:47,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:38:47,025 INFO L93 Difference]: Finished difference Result 8058 states and 11509 transitions. [2020-10-15 02:38:47,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 02:38:47,026 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2020-10-15 02:38:47,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:38:47,068 INFO L225 Difference]: With dead ends: 8058 [2020-10-15 02:38:47,068 INFO L226 Difference]: Without dead ends: 5310 [2020-10-15 02:38:47,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2020-10-15 02:38:47,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5310 states. [2020-10-15 02:38:47,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5310 to 5056. [2020-10-15 02:38:47,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5056 states. [2020-10-15 02:38:47,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5056 states to 5056 states and 7183 transitions. [2020-10-15 02:38:47,463 INFO L78 Accepts]: Start accepts. Automaton has 5056 states and 7183 transitions. Word has length 87 [2020-10-15 02:38:47,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:38:47,463 INFO L479 AbstractCegarLoop]: Abstraction has 5056 states and 7183 transitions. [2020-10-15 02:38:47,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:38:47,464 INFO L276 IsEmpty]: Start isEmpty. Operand 5056 states and 7183 transitions. [2020-10-15 02:38:47,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-15 02:38:47,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:38:47,467 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] [2020-10-15 02:38:47,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:38:47,468 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:38:47,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:38:47,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1158832379, now seen corresponding path program 1 times [2020-10-15 02:38:47,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:38:47,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712177977] [2020-10-15 02:38:47,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:38:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:47,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:47,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:48,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:48,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-15 02:38:48,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:38:48,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 723 [2020-10-15 02:38:48,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:48,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:48,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:38:48,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-15 02:38:48,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-15 02:38:48,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:48,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:38:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:48,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:48,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:48,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:38:48,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:48,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:38:48,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:48,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:48,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:48,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:48,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:48,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:48,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:38:48,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:48,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:48,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:48,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:38:48,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:48,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:38:48,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:48,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:48,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:48,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:48,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 02:38:48,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:48,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 02:38:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:48,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:48,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:48,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:38:48,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:48,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:38:48,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:48,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:48,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:48,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:48,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:38:48,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:48,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:38:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:48,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:48,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:48,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:38:48,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:48,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:38:48,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:48,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:48,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:38:48,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:48,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:38:48,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:48,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:38:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:48,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:48,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:48,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:38:48,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:48,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:38:48,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:48,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:48,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:38:48,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:48,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:38:48,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:48,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:38:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:48,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:48,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:48,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:38:48,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:48,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:38:48,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:48,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:48,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:38:48,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:48,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:38:48,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:48,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-15 02:38:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:48,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:48,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:48,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:38:48,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:48,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:38:48,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:48,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:48,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:48,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:38:48,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:38:48,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:48,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-15 02:38:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:48,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:48,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:48,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:48,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:48,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:38:48,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:48,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:48,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:48,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:48,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:48,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:48,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:38:48,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712177977] [2020-10-15 02:38:48,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:38:48,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-15 02:38:48,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575078471] [2020-10-15 02:38:48,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:38:48,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:38:48,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:38:48,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:38:48,676 INFO L87 Difference]: Start difference. First operand 5056 states and 7183 transitions. Second operand 15 states. [2020-10-15 02:38:48,867 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:38:49,017 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:38:49,479 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:38:49,925 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-15 02:38:50,048 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-15 02:38:50,177 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:38:50,920 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-15 02:38:51,066 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-15 02:38:51,201 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-15 02:38:51,346 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-15 02:38:51,488 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-15 02:38:51,642 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:38:51,774 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-15 02:38:52,965 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:38:53,115 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-15 02:38:53,266 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:38:53,404 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-15 02:38:53,555 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:38:53,693 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-15 02:38:53,837 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:38:54,121 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:38:54,257 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:38:54,404 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:38:54,529 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:38:54,754 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-15 02:39:08,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:39:08,650 INFO L93 Difference]: Finished difference Result 61452 states and 90086 transitions. [2020-10-15 02:39:08,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2020-10-15 02:39:08,650 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 88 [2020-10-15 02:39:08,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:39:09,002 INFO L225 Difference]: With dead ends: 61452 [2020-10-15 02:39:09,002 INFO L226 Difference]: Without dead ends: 56438 [2020-10-15 02:39:09,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7328 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=2317, Invalid=16589, Unknown=0, NotChecked=0, Total=18906 [2020-10-15 02:39:09,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56438 states. [2020-10-15 02:39:14,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56438 to 54484. [2020-10-15 02:39:14,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54484 states. [2020-10-15 02:39:14,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54484 states to 54484 states and 73541 transitions. [2020-10-15 02:39:14,263 INFO L78 Accepts]: Start accepts. Automaton has 54484 states and 73541 transitions. Word has length 88 [2020-10-15 02:39:14,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:39:14,263 INFO L479 AbstractCegarLoop]: Abstraction has 54484 states and 73541 transitions. [2020-10-15 02:39:14,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 02:39:14,263 INFO L276 IsEmpty]: Start isEmpty. Operand 54484 states and 73541 transitions. [2020-10-15 02:39:14,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-15 02:39:14,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:39:14,266 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:39:14,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:39:14,267 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:39:14,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:39:14,267 INFO L82 PathProgramCache]: Analyzing trace with hash 618140240, now seen corresponding path program 1 times [2020-10-15 02:39:14,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:39:14,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1299035139] [2020-10-15 02:39:14,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:39:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:14,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:14,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:14,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:14,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:17,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:17,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-15 02:39:17,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:39:17,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2973 [2020-10-15 02:39:17,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:17,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:17,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:39:17,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-15 02:39:17,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-15 02:39:17,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:17,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:39:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:17,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:17,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:17,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:39:17,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:17,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:39:17,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:17,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:17,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:17,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:17,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:17,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:17,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:39:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:17,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:17,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:17,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:39:17,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:17,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:39:17,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:17,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:17,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:17,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:17,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:17,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:17,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 02:39:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:17,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:17,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:17,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:39:17,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:17,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:39:17,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:17,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:17,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:17,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:17,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:17,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:17,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:39:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:17,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:17,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:17,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:39:17,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:17,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:39:17,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:17,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:17,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:39:17,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:17,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:39:17,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:17,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:39:17,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:17,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:17,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:17,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:17,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:17,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:39:17,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:17,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:17,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:17,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:17,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:39:17,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:17,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:39:17,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:17,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:17,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:17,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:17,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:17,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:39:17,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:17,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:17,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:17,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:17,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:39:17,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:17,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:39:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:17,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:17,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:17,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:17,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:17,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:39:17,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:17,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:17,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:17,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:17,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:39:17,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:17,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:39:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:17,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:17,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:17,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:17,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:17,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:39:17,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:17,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:17,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:17,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:39:17,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:39:17,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:17,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:39:17,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1299035139] [2020-10-15 02:39:17,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:39:17,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:39:17,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401903956] [2020-10-15 02:39:17,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:39:17,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:39:17,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:39:17,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:39:17,614 INFO L87 Difference]: Start difference. First operand 54484 states and 73541 transitions. Second operand 10 states. [2020-10-15 02:39:18,987 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-15 02:39:27,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:39:27,859 INFO L93 Difference]: Finished difference Result 206219 states and 283617 transitions. [2020-10-15 02:39:27,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:39:27,860 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 89 [2020-10-15 02:39:27,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:39:28,775 INFO L225 Difference]: With dead ends: 206219 [2020-10-15 02:39:28,775 INFO L226 Difference]: Without dead ends: 151790 [2020-10-15 02:39:28,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2020-10-15 02:39:29,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151790 states. [2020-10-15 02:39:42,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151790 to 147296. [2020-10-15 02:39:42,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147296 states. [2020-10-15 02:39:42,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147296 states to 147296 states and 200492 transitions. [2020-10-15 02:39:42,442 INFO L78 Accepts]: Start accepts. Automaton has 147296 states and 200492 transitions. Word has length 89 [2020-10-15 02:39:42,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:39:42,443 INFO L479 AbstractCegarLoop]: Abstraction has 147296 states and 200492 transitions. [2020-10-15 02:39:42,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:39:42,443 INFO L276 IsEmpty]: Start isEmpty. Operand 147296 states and 200492 transitions. [2020-10-15 02:39:42,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-15 02:39:42,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:39:42,447 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:39:42,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:39:42,447 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:39:42,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:39:42,448 INFO L82 PathProgramCache]: Analyzing trace with hash -279253038, now seen corresponding path program 1 times [2020-10-15 02:39:42,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:39:42,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [638086762] [2020-10-15 02:39:42,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:39:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:42,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:42,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:43,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:43,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-15 02:39:43,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:39:43,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 858 [2020-10-15 02:39:43,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:43,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:43,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:43,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-15 02:39:43,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:39:43,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:43,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:39:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:43,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:43,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:43,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:39:43,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:43,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:39:43,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:43,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:43,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:43,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:43,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:43,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:43,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:39:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:43,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:43,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:43,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:39:43,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:43,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:39:43,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:43,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:43,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:43,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:43,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:39:43,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:43,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 02:39:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:43,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:43,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:43,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:39:43,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:43,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:39:43,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:43,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:39:43,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:43,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:39:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:43,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:43,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:43,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:39:43,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:43,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:39:43,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:43,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:43,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:43,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:39:43,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:39:43,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:43,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:39:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:43,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:43,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:43,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:43,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:43,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:39:43,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:43,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:43,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:43,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:39:43,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:43,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:43,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:39:43,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:43,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:43,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:43,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:43,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:43,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:39:43,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:43,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:43,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:43,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:39:43,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:43,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:43,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:39:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:43,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:43,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:43,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:43,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:43,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:39:43,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:43,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:43,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:43,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:39:43,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:43,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:43,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:39:43,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:43,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:43,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:43,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:43,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:43,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:39:43,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:43,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:43,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:43,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:39:43,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:43,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:43,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:39:43,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [638086762] [2020-10-15 02:39:43,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:39:43,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:39:43,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983325872] [2020-10-15 02:39:43,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:39:43,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:39:43,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:39:43,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:39:43,687 INFO L87 Difference]: Start difference. First operand 147296 states and 200492 transitions. Second operand 10 states. [2020-10-15 02:39:43,823 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-15 02:39:44,639 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-15 02:39:57,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:39:57,980 INFO L93 Difference]: Finished difference Result 371394 states and 507116 transitions. [2020-10-15 02:39:57,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:39:57,981 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 89 [2020-10-15 02:39:57,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:39:58,884 INFO L225 Difference]: With dead ends: 371394 [2020-10-15 02:39:58,885 INFO L226 Difference]: Without dead ends: 224268 [2020-10-15 02:39:59,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2020-10-15 02:39:59,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224268 states. [2020-10-15 02:40:14,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224268 to 220604. [2020-10-15 02:40:14,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220604 states. [2020-10-15 02:40:15,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220604 states to 220604 states and 295163 transitions. [2020-10-15 02:40:15,429 INFO L78 Accepts]: Start accepts. Automaton has 220604 states and 295163 transitions. Word has length 89 [2020-10-15 02:40:15,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:40:15,430 INFO L479 AbstractCegarLoop]: Abstraction has 220604 states and 295163 transitions. [2020-10-15 02:40:15,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:40:15,430 INFO L276 IsEmpty]: Start isEmpty. Operand 220604 states and 295163 transitions. [2020-10-15 02:40:15,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-15 02:40:15,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:40:15,432 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:40:15,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:40:15,432 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:40:15,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:40:15,433 INFO L82 PathProgramCache]: Analyzing trace with hash -143637310, now seen corresponding path program 1 times [2020-10-15 02:40:15,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:40:15,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1441636644] [2020-10-15 02:40:15,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:40:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:15,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:15,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:15,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-15 02:40:15,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:15,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-15 02:40:15,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:15,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:15,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:40:15,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-15 02:40:15,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:40:15,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:15,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:40:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:15,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:15,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:15,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:40:15,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:15,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:40:15,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:15,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:15,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:40:15,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:15,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:40:15,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:15,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:40:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:15,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:15,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:15,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:40:15,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:15,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:40:15,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:15,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:15,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:40:15,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:15,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:40:15,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:15,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 02:40:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:15,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:15,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:15,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:40:15,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:15,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:40:15,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:15,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:15,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:40:15,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:15,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:40:15,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:15,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:40:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:15,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:15,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:15,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:40:15,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:15,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:40:15,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:15,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:15,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:40:15,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:15,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:40:15,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:15,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:40:15,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:15,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:15,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:15,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:40:15,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:15,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:40:15,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:15,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:15,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:40:15,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:15,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:40:15,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:15,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:40:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:15,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:15,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:15,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:40:15,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:15,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:40:15,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:15,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:15,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:40:15,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:15,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:40:15,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:40:16,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:40:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:16,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:16,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:16,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:40:16,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:16,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:40:16,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:16,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:16,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:40:16,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:16,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:40:16,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:40:16,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:40:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:16,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:16,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:16,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:40:16,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:16,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:40:16,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:16,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:16,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:40:16,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:16,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:40:16,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:16,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:40:16,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1441636644] [2020-10-15 02:40:16,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:40:16,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:40:16,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890531231] [2020-10-15 02:40:16,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:40:16,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:40:16,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:40:16,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:40:16,104 INFO L87 Difference]: Start difference. First operand 220604 states and 295163 transitions. Second operand 13 states. [2020-10-15 02:40:17,298 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:40:17,443 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-15 02:40:17,577 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-15 02:40:32,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:40:32,372 INFO L93 Difference]: Finished difference Result 244102 states and 336292 transitions. [2020-10-15 02:40:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:40:32,373 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 89 [2020-10-15 02:40:32,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:40:33,059 INFO L225 Difference]: With dead ends: 244102 [2020-10-15 02:40:33,059 INFO L226 Difference]: Without dead ends: 244100 [2020-10-15 02:40:33,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2020-10-15 02:40:33,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244100 states. [2020-10-15 02:40:53,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244100 to 227660. [2020-10-15 02:40:53,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227660 states. [2020-10-15 02:40:54,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227660 states to 227660 states and 301823 transitions. [2020-10-15 02:40:54,087 INFO L78 Accepts]: Start accepts. Automaton has 227660 states and 301823 transitions. Word has length 89 [2020-10-15 02:40:54,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:40:54,088 INFO L479 AbstractCegarLoop]: Abstraction has 227660 states and 301823 transitions. [2020-10-15 02:40:54,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:40:54,088 INFO L276 IsEmpty]: Start isEmpty. Operand 227660 states and 301823 transitions. [2020-10-15 02:40:54,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-15 02:40:54,133 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:40:54,134 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:40:54,134 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:40:54,134 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:40:54,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:40:54,134 INFO L82 PathProgramCache]: Analyzing trace with hash -88078902, now seen corresponding path program 1 times [2020-10-15 02:40:54,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:40:54,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13732795] [2020-10-15 02:40:54,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:40:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:54,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:54,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:56,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:56,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-15 02:40:56,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:40:56,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2574 [2020-10-15 02:40:56,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:56,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:56,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:40:56,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 02:40:56,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-15 02:40:56,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:40:56,924 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-15 02:40:56,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:40:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:56,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:56,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:56,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:40:56,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:56,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:40:56,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:56,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:56,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:40:56,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:56,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:40:56,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:56,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:40:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:56,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:56,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:56,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:40:56,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:56,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:40:56,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:56,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:56,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:40:56,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:56,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 02:40:56,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:56,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 02:40:56,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:56,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:56,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:56,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:40:56,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:56,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:40:56,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:56,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:56,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:40:56,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:56,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:40:56,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:40:56,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:40:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:56,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:56,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:56,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:40:56,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:56,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:40:56,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:56,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:56,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:40:57,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:40:57,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:40:57,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:57,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:40:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:57,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:57,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:57,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:40:57,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:57,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:40:57,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:57,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:57,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:40:57,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:57,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:40:57,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:57,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:40:57,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:57,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:57,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:57,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:40:57,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:57,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:40:57,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:57,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:57,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:40:57,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:57,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:40:57,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:57,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:40:57,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:57,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:57,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:57,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:40:57,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:57,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:40:57,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:57,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:57,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:40:57,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:57,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:40:57,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:57,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:40:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:57,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:57,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:57,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:40:57,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:57,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:40:57,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:57,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:57,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:40:57,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:57,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:40:57,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:57,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-15 02:40:57,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:57,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:57,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:57,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:40:57,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:57,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:40:57,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:57,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:57,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:40:57,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:57,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:40:57,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:57,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-15 02:40:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:57,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:57,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:57,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:40:57,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:57,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:40:57,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:57,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:57,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:40:57,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:40:57,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:40:57,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:57,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-15 02:40:57,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:57,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:57,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:57,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:40:57,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:57,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:40:57,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:57,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:57,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:40:57,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:57,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:40:57,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:57,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-15 02:40:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:57,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:57,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:57,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:40:57,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:57,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:40:57,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:57,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:57,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:40:57,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:57,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:40:57,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:57,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-15 02:40:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:57,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:57,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:57,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:40:57,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:57,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:40:57,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:57,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:57,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:40:57,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:57,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:40:57,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:40:57,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-15 02:40:57,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:57,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:57,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:57,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:40:57,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:57,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:40:57,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:57,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:57,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:40:57,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:40:57,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:40:57,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:40:57,293 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-15 02:40:57,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13732795] [2020-10-15 02:40:57,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:40:57,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-15 02:40:57,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183817518] [2020-10-15 02:40:57,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 02:40:57,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:40:57,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 02:40:57,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-15 02:40:57,296 INFO L87 Difference]: Start difference. First operand 227660 states and 301823 transitions. Second operand 12 states. [2020-10-15 02:40:57,476 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-15 02:40:58,752 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-15 02:41:10,595 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 115