/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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.3.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:00:03,319 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:00:03,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:00:03,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:00:03,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:00:03,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:00:03,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:00:03,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:00:03,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:00:03,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:00:03,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:00:03,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:00:03,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:00:03,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:00:03,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:00:03,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:00:03,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:00:03,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:00:03,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:00:03,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:00:03,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:00:03,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:00:03,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:00:03,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:00:03,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:00:03,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:00:03,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:00:03,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:00:03,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:00:03,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:00:03,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:00:03,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:00:03,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:00:03,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:00:03,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:00:03,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:00:03,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:00:03,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:00:03,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:00:03,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:00:03,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:00:03,432 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 [2020-10-14 08:00:03,469 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:00:03,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:00:03,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:00:03,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:00:03,471 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:00:03,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:00:03,472 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:00:03,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:00:03,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:00:03,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:00:03,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:00:03,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:00:03,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:00:03,473 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:00:03,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:00:03,473 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:00:03,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:00:03,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:00:03,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:00:03,474 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:00:03,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:00:03,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:00:03,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:00:03,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:00:03,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:00:03,475 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:00:03,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:00:03,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:00:03,476 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:00:03,476 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 08:00:03,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:00:03,760 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:00:03,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:00:03,765 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:00:03,765 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:00:03,766 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c [2020-10-14 08:00:03,821 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8b0a930c/2dc6d1f03a8a4358b551ff768384525a/FLAG27d567363 [2020-10-14 08:00:04,298 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:00:04,299 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c [2020-10-14 08:00:04,309 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8b0a930c/2dc6d1f03a8a4358b551ff768384525a/FLAG27d567363 [2020-10-14 08:00:04,577 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8b0a930c/2dc6d1f03a8a4358b551ff768384525a [2020-10-14 08:00:04,586 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:00:04,588 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:00:04,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:00:04,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:00:04,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:00:04,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:00:04" (1/1) ... [2020-10-14 08:00:04,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e023dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:04, skipping insertion in model container [2020-10-14 08:00:04,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:00:04" (1/1) ... [2020-10-14 08:00:04,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:00:04,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:00:04,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:00:04,932 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:00:05,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:00:05,108 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:00:05,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:05 WrapperNode [2020-10-14 08:00:05,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:00:05,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:00:05,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:00:05,110 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:00:05,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:05" (1/1) ... [2020-10-14 08:00:05,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:05" (1/1) ... [2020-10-14 08:00:05,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:05" (1/1) ... [2020-10-14 08:00:05,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:05" (1/1) ... [2020-10-14 08:00:05,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:05" (1/1) ... [2020-10-14 08:00:05,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:05" (1/1) ... [2020-10-14 08:00:05,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:05" (1/1) ... [2020-10-14 08:00:05,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:00:05,160 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:00:05,160 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:00:05,160 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:00:05,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:05" (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 [2020-10-14 08:00:05,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:00:05,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:00:05,227 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:00:05,227 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 08:00:05,227 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 08:00:05,228 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 08:00:05,228 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 08:00:05,228 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 08:00:05,228 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:00:05,228 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 08:00:05,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:00:05,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:00:05,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:00:05,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 08:00:05,229 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:00:05,229 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:00:05,229 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:00:05,230 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:00:05,230 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:00:05,230 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:00:05,230 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:00:05,230 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:00:05,230 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:00:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:00:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:00:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:00:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:00:05,774 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:00:05,775 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 08:00:05,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:00:05 BoogieIcfgContainer [2020-10-14 08:00:05,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:00:05,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:00:05,782 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:00:05,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:00:05,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:00:04" (1/3) ... [2020-10-14 08:00:05,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd8fdb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:00:05, skipping insertion in model container [2020-10-14 08:00:05,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:05" (2/3) ... [2020-10-14 08:00:05,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd8fdb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:00:05, skipping insertion in model container [2020-10-14 08:00:05,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:00:05" (3/3) ... [2020-10-14 08:00:05,789 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c [2020-10-14 08:00:05,799 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:00:05,807 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 08:00:05,821 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 08:00:05,846 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:00:05,847 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:00:05,847 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:00:05,847 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:00:05,848 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:00:05,848 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:00:05,848 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:00:05,848 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:00:05,870 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2020-10-14 08:00:05,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-14 08:00:05,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:05,881 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] [2020-10-14 08:00:05,882 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:05,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:05,888 INFO L82 PathProgramCache]: Analyzing trace with hash 115152640, now seen corresponding path program 1 times [2020-10-14 08:00:05,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:05,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [396336611] [2020-10-14 08:00:05,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:06,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:06,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:06,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 08:00:06,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:06,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-14 08:00:06,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:06,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:06,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:06,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 08:00:06,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:06,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 08:00:06,544 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-14 08:00:06,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:06,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:06,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:06,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:06,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:06,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:00:06,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:06,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:06,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:06,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:06,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:06,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:06,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:06,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:06,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:06,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:06,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:06,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:06,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:06,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:06,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:06,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:06,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:06,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:06,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 08:00:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:06,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:06,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:06,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:06,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:06,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:06,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:06,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:06,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:06,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 08:00:06,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:06,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:06,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 08:00:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:06,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:06,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:06,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:06,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:06,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:00:06,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:06,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:06,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:06,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:00:06,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:06,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:06,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 08:00:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:06,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:06,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:06,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:06,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:06,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:00:06,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:06,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:06,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:06,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:00:06,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:06,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:06,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 08:00:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:06,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:06,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:06,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:06,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:06,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:00:06,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:06,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:06,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:06,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:00:06,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:06,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:06,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 08:00:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:06,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:06,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:06,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:06,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:06,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:06,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:06,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:06,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:06,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:06,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:06,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:06,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:00:06,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [396336611] [2020-10-14 08:00:06,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:06,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:00:06,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924457097] [2020-10-14 08:00:06,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:00:06,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:06,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:00:06,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:00:06,798 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 6 states. [2020-10-14 08:00:07,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:07,421 INFO L93 Difference]: Finished difference Result 189 states and 275 transitions. [2020-10-14 08:00:07,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 08:00:07,423 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-10-14 08:00:07,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:07,442 INFO L225 Difference]: With dead ends: 189 [2020-10-14 08:00:07,443 INFO L226 Difference]: Without dead ends: 110 [2020-10-14 08:00:07,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:00:07,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-14 08:00:07,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 106. [2020-10-14 08:00:07,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-14 08:00:07,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 154 transitions. [2020-10-14 08:00:07,542 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 154 transitions. Word has length 54 [2020-10-14 08:00:07,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:07,542 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 154 transitions. [2020-10-14 08:00:07,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:00:07,543 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 154 transitions. [2020-10-14 08:00:07,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-14 08:00:07,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:07,547 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] [2020-10-14 08:00:07,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:00:07,549 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:07,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:07,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1730214526, now seen corresponding path program 1 times [2020-10-14 08:00:07,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:07,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1657041602] [2020-10-14 08:00:07,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:07,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:07,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:07,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 08:00:07,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:07,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 398 [2020-10-14 08:00:07,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:07,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:07,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:00:07,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 08:00:07,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:00:07,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:08,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:08,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:08,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:08,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:08,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:08,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:00:08,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:08,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:08,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:08,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:08,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:08,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:08,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:08,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:08,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:08,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:08,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:08,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:00:08,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:08,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:08,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:08,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:08,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:08,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:08,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 08:00:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:08,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:08,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:08,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:08,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:08,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:08,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:08,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:08,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:08,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 08:00:08,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:08,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:08,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 08:00:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:08,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:08,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:08,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:08,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:08,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:08,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:08,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:08,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:08,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:00:08,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:08,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:08,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 08:00:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:08,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:08,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:08,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:08,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:08,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:08,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:08,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:08,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:08,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:00:08,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:08,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:08,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 08:00:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:08,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:08,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:08,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:08,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:08,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:08,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:08,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:08,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:08,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:00:08,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:08,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:08,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 08:00:08,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:08,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:08,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:08,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:08,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:08,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:08,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:08,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:08,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:08,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:08,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:08,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:08,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:00:08,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1657041602] [2020-10-14 08:00:08,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:08,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 08:00:08,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402849586] [2020-10-14 08:00:08,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 08:00:08,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:08,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 08:00:08,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-14 08:00:08,377 INFO L87 Difference]: Start difference. First operand 106 states and 154 transitions. Second operand 12 states. [2020-10-14 08:00:08,874 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-14 08:00:09,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:09,810 INFO L93 Difference]: Finished difference Result 187 states and 267 transitions. [2020-10-14 08:00:09,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:00:09,811 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2020-10-14 08:00:09,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:09,813 INFO L225 Difference]: With dead ends: 187 [2020-10-14 08:00:09,813 INFO L226 Difference]: Without dead ends: 110 [2020-10-14 08:00:09,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:00:09,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-14 08:00:09,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 106. [2020-10-14 08:00:09,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-14 08:00:09,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 137 transitions. [2020-10-14 08:00:09,831 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 137 transitions. Word has length 54 [2020-10-14 08:00:09,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:09,832 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 137 transitions. [2020-10-14 08:00:09,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 08:00:09,832 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 137 transitions. [2020-10-14 08:00:09,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-14 08:00:09,834 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:09,834 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] [2020-10-14 08:00:09,835 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:00:09,835 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:09,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:09,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1333801356, now seen corresponding path program 1 times [2020-10-14 08:00:09,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:09,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454817409] [2020-10-14 08:00:09,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:09,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:09,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:10,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:11,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:11,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 08:00:11,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:00:11,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1320 [2020-10-14 08:00:11,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:11,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:11,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:11,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 08:00:11,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 08:00:11,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:11,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:11,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:11,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:11,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:11,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:11,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:11,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:11,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:11,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:11,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:11,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:11,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:11,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:11,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:11,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:11,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:11,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:11,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:11,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:00:11,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:11,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:11,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:11,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:11,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 08:00:11,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:11,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:00:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:11,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:11,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:11,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:11,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:11,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:11,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:11,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:11,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:11,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:11,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:11,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:11,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:00:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:11,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:11,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:11,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:11,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:11,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:00:11,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:11,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:11,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:11,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:11,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:00:11,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:11,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 08:00:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:11,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:11,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:11,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:11,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:11,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:00:11,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:11,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:11,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:11,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:11,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:11,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:11,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 08:00:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:11,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:11,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:11,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:11,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:11,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:00:11,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:11,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:11,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:11,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:11,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:00:11,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:11,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 08:00:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:11,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:11,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:11,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:11,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:11,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:00:11,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:11,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:11,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:11,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:11,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:11,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:11,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:00:11,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454817409] [2020-10-14 08:00:11,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:11,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:00:11,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208772596] [2020-10-14 08:00:11,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:00:11,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:11,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:00:11,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:00:11,499 INFO L87 Difference]: Start difference. First operand 106 states and 137 transitions. Second operand 9 states. [2020-10-14 08:00:12,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:12,463 INFO L93 Difference]: Finished difference Result 243 states and 330 transitions. [2020-10-14 08:00:12,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:00:12,463 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-10-14 08:00:12,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:12,467 INFO L225 Difference]: With dead ends: 243 [2020-10-14 08:00:12,468 INFO L226 Difference]: Without dead ends: 172 [2020-10-14 08:00:12,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-14 08:00:12,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-14 08:00:12,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 163. [2020-10-14 08:00:12,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-14 08:00:12,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 218 transitions. [2020-10-14 08:00:12,495 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 218 transitions. Word has length 70 [2020-10-14 08:00:12,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:12,496 INFO L479 AbstractCegarLoop]: Abstraction has 163 states and 218 transitions. [2020-10-14 08:00:12,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:00:12,496 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 218 transitions. [2020-10-14 08:00:12,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-14 08:00:12,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:12,501 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] [2020-10-14 08:00:12,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:00:12,502 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:12,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:12,504 INFO L82 PathProgramCache]: Analyzing trace with hash 178922503, now seen corresponding path program 1 times [2020-10-14 08:00:12,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:12,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798234292] [2020-10-14 08:00:12,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:12,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:12,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:13,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:13,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 08:00:13,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:00:13,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 720 [2020-10-14 08:00:13,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:13,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:13,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:13,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 08:00:13,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 08:00:13,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:13,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:13,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:13,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:13,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:13,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:13,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:00:13,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:13,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:13,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:13,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:13,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:13,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:13,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:13,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:13,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:13,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:13,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:13,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:00:13,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:13,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:13,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:13,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:13,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:00:13,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:13,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:00:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:13,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:13,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:13,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:13,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:13,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:13,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:13,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:13,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:13,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:13,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:13,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:13,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:00:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:13,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:13,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:13,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:13,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:13,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:00:13,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:13,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:13,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:13,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:13,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:00:13,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:13,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 08:00:13,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:13,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:13,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:13,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:13,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:13,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:00:13,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:13,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:13,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:13,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:13,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:00:13,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:13,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 08:00:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:13,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:13,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:13,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:13,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:13,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:13,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:13,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:13,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:13,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:00:13,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:13,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:13,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 08:00:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:13,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:13,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:13,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:13,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:13,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:13,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:13,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:13,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:13,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:13,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:13,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:13,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:00:13,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798234292] [2020-10-14 08:00:13,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:13,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:00:13,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111463786] [2020-10-14 08:00:13,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:00:13,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:13,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:00:13,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:00:13,599 INFO L87 Difference]: Start difference. First operand 163 states and 218 transitions. Second operand 9 states. [2020-10-14 08:00:14,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:14,630 INFO L93 Difference]: Finished difference Result 407 states and 560 transitions. [2020-10-14 08:00:14,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:00:14,631 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-14 08:00:14,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:14,634 INFO L225 Difference]: With dead ends: 407 [2020-10-14 08:00:14,634 INFO L226 Difference]: Without dead ends: 279 [2020-10-14 08:00:14,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-14 08:00:14,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-10-14 08:00:14,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 265. [2020-10-14 08:00:14,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-10-14 08:00:14,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 360 transitions. [2020-10-14 08:00:14,667 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 360 transitions. Word has length 71 [2020-10-14 08:00:14,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:14,668 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 360 transitions. [2020-10-14 08:00:14,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:00:14,668 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 360 transitions. [2020-10-14 08:00:14,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-14 08:00:14,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:14,670 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] [2020-10-14 08:00:14,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:00:14,670 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:14,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:14,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1916937104, now seen corresponding path program 1 times [2020-10-14 08:00:14,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:14,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [598584910] [2020-10-14 08:00:14,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:14,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:14,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:16,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:16,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 08:00:16,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:00:16,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1506 [2020-10-14 08:00:16,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:16,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:16,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:16,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 08:00:16,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 08:00:16,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:16,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:16,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:16,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:16,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:16,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:16,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:16,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:16,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:16,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:16,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:16,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:16,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:16,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:16,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:16,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:16,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:16,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:16,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:16,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:00:16,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:16,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:16,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:16,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:16,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:00:16,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:16,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:00:16,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:16,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:16,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:16,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:16,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:16,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:16,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:16,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:16,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:16,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:16,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:16,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:16,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:00:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:16,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:16,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:16,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:16,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:16,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 08:00:16,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:16,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:16,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:00:16,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:16,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:00:16,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:16,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 08:00:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:16,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:16,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:16,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:16,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:16,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:00:16,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:16,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:16,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:00:16,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:16,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:00:16,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:16,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 08:00:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:16,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:16,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:16,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:16,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:16,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:16,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:16,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:16,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:16,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:00:16,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:16,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:16,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:00:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:16,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:16,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:16,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:16,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:16,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:00:16,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:16,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:16,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:16,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:16,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:16,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:16,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:00:16,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [598584910] [2020-10-14 08:00:16,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:16,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 08:00:16,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893246871] [2020-10-14 08:00:16,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 08:00:16,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:16,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 08:00:16,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-14 08:00:16,584 INFO L87 Difference]: Start difference. First operand 265 states and 360 transitions. Second operand 12 states. [2020-10-14 08:00:21,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:21,724 INFO L93 Difference]: Finished difference Result 1798 states and 2560 transitions. [2020-10-14 08:00:21,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-14 08:00:21,724 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 72 [2020-10-14 08:00:21,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:21,737 INFO L225 Difference]: With dead ends: 1798 [2020-10-14 08:00:21,737 INFO L226 Difference]: Without dead ends: 1568 [2020-10-14 08:00:21,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=594, Invalid=2828, Unknown=0, NotChecked=0, Total=3422 [2020-10-14 08:00:21,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2020-10-14 08:00:21,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 1501. [2020-10-14 08:00:21,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1501 states. [2020-10-14 08:00:21,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 2006 transitions. [2020-10-14 08:00:21,903 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 2006 transitions. Word has length 72 [2020-10-14 08:00:21,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:21,904 INFO L479 AbstractCegarLoop]: Abstraction has 1501 states and 2006 transitions. [2020-10-14 08:00:21,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 08:00:21,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 2006 transitions. [2020-10-14 08:00:21,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-14 08:00:21,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:21,906 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] [2020-10-14 08:00:21,907 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:00:21,907 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:21,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:21,907 INFO L82 PathProgramCache]: Analyzing trace with hash 936758342, now seen corresponding path program 1 times [2020-10-14 08:00:21,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:21,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [102357584] [2020-10-14 08:00:21,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:21,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:21,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:22,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:23,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:23,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 08:00:23,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:00:23,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1388 [2020-10-14 08:00:23,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:23,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:23,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:23,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 08:00:23,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 08:00:23,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:23,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:23,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:23,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:23,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:23,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:23,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:23,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:23,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:23,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:23,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:23,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:23,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:23,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:23,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:23,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:23,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:23,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:23,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:23,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:00:23,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:23,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:23,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:23,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:23,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 08:00:23,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:23,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:00:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:23,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:23,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:23,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:23,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:23,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:00:23,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:23,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:23,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:23,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:23,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:23,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:23,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:00:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:23,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:23,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:23,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:00:23,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:23,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:00:23,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:23,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:23,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:23,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:23,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:00:23,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:23,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:00:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:23,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:23,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:23,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:23,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:23,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:23,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:23,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:23,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:23,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:00:23,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:23,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:23,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:00:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:23,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:23,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:23,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:23,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:23,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:23,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:23,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:23,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:23,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:00:23,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:23,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:23,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:00:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:23,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:23,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:23,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:23,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:23,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:00:23,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:23,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:23,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:23,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:23,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:23,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:23,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:00:23,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [102357584] [2020-10-14 08:00:23,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:23,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:00:23,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471505888] [2020-10-14 08:00:23,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:00:23,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:23,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:00:23,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:00:23,626 INFO L87 Difference]: Start difference. First operand 1501 states and 2006 transitions. Second operand 9 states. [2020-10-14 08:00:24,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:24,848 INFO L93 Difference]: Finished difference Result 4563 states and 6166 transitions. [2020-10-14 08:00:24,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:00:24,848 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 73 [2020-10-14 08:00:24,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:24,871 INFO L225 Difference]: With dead ends: 4563 [2020-10-14 08:00:24,872 INFO L226 Difference]: Without dead ends: 3110 [2020-10-14 08:00:24,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2020-10-14 08:00:24,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3110 states. [2020-10-14 08:00:25,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3110 to 2973. [2020-10-14 08:00:25,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2973 states. [2020-10-14 08:00:25,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2973 states to 2973 states and 3941 transitions. [2020-10-14 08:00:25,136 INFO L78 Accepts]: Start accepts. Automaton has 2973 states and 3941 transitions. Word has length 73 [2020-10-14 08:00:25,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:25,136 INFO L479 AbstractCegarLoop]: Abstraction has 2973 states and 3941 transitions. [2020-10-14 08:00:25,136 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:00:25,137 INFO L276 IsEmpty]: Start isEmpty. Operand 2973 states and 3941 transitions. [2020-10-14 08:00:25,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-14 08:00:25,139 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:25,139 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] [2020-10-14 08:00:25,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:00:25,140 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:25,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:25,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1307224956, now seen corresponding path program 1 times [2020-10-14 08:00:25,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:25,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1669668903] [2020-10-14 08:00:25,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:25,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:25,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:25,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:25,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 08:00:25,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:00:25,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 557 [2020-10-14 08:00:25,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:25,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:25,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:25,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 08:00:25,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-14 08:00:25,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:25,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:25,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:25,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:25,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:25,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:25,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:25,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:25,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:25,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:25,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:25,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:25,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:25,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:25,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:25,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:25,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:25,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:25,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:25,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:00:25,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:25,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:25,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:25,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:25,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:25,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:25,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:00:25,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:25,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:25,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:25,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:25,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:25,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:25,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:25,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:25,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:25,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:25,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:25,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:25,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:00:25,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:25,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:25,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:25,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:00:25,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:25,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:00:25,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:25,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:00:25,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:25,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:00:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:25,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:25,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:25,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:25,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:25,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:00:25,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:25,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:25,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:25,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:00:25,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:25,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:26,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:00:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:26,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:26,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:26,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:26,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:26,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:26,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:26,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:26,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:26,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:00:26,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:26,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:26,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:00:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:26,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:26,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:26,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:26,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:26,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:00:26,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:26,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:26,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:26,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:26,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:26,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:26,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:00:26,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1669668903] [2020-10-14 08:00:26,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:26,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:00:26,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033108904] [2020-10-14 08:00:26,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:00:26,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:26,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:00:26,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:00:26,030 INFO L87 Difference]: Start difference. First operand 2973 states and 3941 transitions. Second operand 9 states. [2020-10-14 08:00:27,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:27,503 INFO L93 Difference]: Finished difference Result 5751 states and 7729 transitions. [2020-10-14 08:00:27,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:00:27,504 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 73 [2020-10-14 08:00:27,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:27,536 INFO L225 Difference]: With dead ends: 5751 [2020-10-14 08:00:27,537 INFO L226 Difference]: Without dead ends: 4097 [2020-10-14 08:00:27,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:00:27,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4097 states. [2020-10-14 08:00:27,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4097 to 4033. [2020-10-14 08:00:27,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4033 states. [2020-10-14 08:00:27,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4033 states to 4033 states and 5320 transitions. [2020-10-14 08:00:27,906 INFO L78 Accepts]: Start accepts. Automaton has 4033 states and 5320 transitions. Word has length 73 [2020-10-14 08:00:27,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:27,907 INFO L479 AbstractCegarLoop]: Abstraction has 4033 states and 5320 transitions. [2020-10-14 08:00:27,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:00:27,907 INFO L276 IsEmpty]: Start isEmpty. Operand 4033 states and 5320 transitions. [2020-10-14 08:00:27,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-14 08:00:27,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:27,915 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] [2020-10-14 08:00:27,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:00:27,915 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:27,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:27,915 INFO L82 PathProgramCache]: Analyzing trace with hash -772820588, now seen corresponding path program 1 times [2020-10-14 08:00:27,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:27,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942169420] [2020-10-14 08:00:27,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:27,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:28,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:28,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 08:00:28,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:28,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-10-14 08:00:28,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:28,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:28,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 08:00:28,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 08:00:28,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 08:00:28,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:28,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:28,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:28,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:28,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:28,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:28,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:28,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:28,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:28,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:28,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:28,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:28,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:28,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:28,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:28,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:28,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:28,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:28,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:00:28,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:28,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:28,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:28,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:28,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 08:00:28,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:28,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:00:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:28,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:28,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:28,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:28,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:28,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:00:28,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:28,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:28,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:28,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:28,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:28,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:28,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:00:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:28,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:28,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:28,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:00:28,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:28,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:00:28,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:28,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:28,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:28,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:28,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:00:28,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:28,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:00:28,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:28,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:28,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:28,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:28,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:28,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:00:28,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:28,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:28,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:28,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:28,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:00:28,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:28,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:00:28,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:28,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:28,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:28,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:28,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:28,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:00:28,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:28,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:28,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:28,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:28,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:00:28,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:28,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:00:28,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:28,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:28,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:28,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:28,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:28,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:28,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:28,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:28,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:28,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 08:00:28,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:00:28,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:28,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:00:28,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942169420] [2020-10-14 08:00:28,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:28,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 08:00:28,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109740877] [2020-10-14 08:00:28,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 08:00:28,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:28,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 08:00:28,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:00:28,574 INFO L87 Difference]: Start difference. First operand 4033 states and 5320 transitions. Second operand 13 states. [2020-10-14 08:00:32,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:32,982 INFO L93 Difference]: Finished difference Result 25157 states and 33797 transitions. [2020-10-14 08:00:32,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-14 08:00:32,983 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 73 [2020-10-14 08:00:32,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:33,117 INFO L225 Difference]: With dead ends: 25157 [2020-10-14 08:00:33,117 INFO L226 Difference]: Without dead ends: 21211 [2020-10-14 08:00:33,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=577, Invalid=1973, Unknown=0, NotChecked=0, Total=2550 [2020-10-14 08:00:33,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21211 states. [2020-10-14 08:00:34,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21211 to 20673. [2020-10-14 08:00:34,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20673 states. [2020-10-14 08:00:34,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20673 states to 20673 states and 27428 transitions. [2020-10-14 08:00:34,613 INFO L78 Accepts]: Start accepts. Automaton has 20673 states and 27428 transitions. Word has length 73 [2020-10-14 08:00:34,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:34,613 INFO L479 AbstractCegarLoop]: Abstraction has 20673 states and 27428 transitions. [2020-10-14 08:00:34,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 08:00:34,613 INFO L276 IsEmpty]: Start isEmpty. Operand 20673 states and 27428 transitions. [2020-10-14 08:00:34,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-14 08:00:34,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:34,615 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] [2020-10-14 08:00:34,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:00:34,615 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:34,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:34,615 INFO L82 PathProgramCache]: Analyzing trace with hash -45090842, now seen corresponding path program 1 times [2020-10-14 08:00:34,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:34,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [779463493] [2020-10-14 08:00:34,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:34,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:34,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:34,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 08:00:34,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:34,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-14 08:00:34,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:34,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:34,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:00:34,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-14 08:00:34,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:00:34,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:34,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:34,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:34,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:34,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:34,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:34,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:34,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:34,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:34,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:34,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:34,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:34,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:34,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:34,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:34,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:34,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:34,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:34,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:34,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:34,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:34,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:34,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:34,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:34,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:34,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:34,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:34,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:00:34,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:34,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:34,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:34,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:34,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:34,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:00:34,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:34,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:34,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:34,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:34,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:34,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:35,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:00:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:35,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:35,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:35,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:00:35,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:35,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:35,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:35,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:35,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:35,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:35,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:35,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:35,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:00:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:35,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:35,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:35,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:35,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:35,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:00:35,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:35,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:35,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:35,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:35,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:35,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:35,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:00:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:35,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:35,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:35,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:35,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:35,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:00:35,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:35,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:35,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:35,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:35,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:35,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:35,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:00:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:35,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:35,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:35,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:35,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:35,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:35,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:35,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:35,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:35,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:35,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:00:35,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:35,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:00:35,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [779463493] [2020-10-14 08:00:35,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:35,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 08:00:35,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543241020] [2020-10-14 08:00:35,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 08:00:35,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:35,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 08:00:35,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-14 08:00:35,280 INFO L87 Difference]: Start difference. First operand 20673 states and 27428 transitions. Second operand 12 states. [2020-10-14 08:00:37,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:37,288 INFO L93 Difference]: Finished difference Result 24521 states and 33469 transitions. [2020-10-14 08:00:37,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:00:37,289 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 74 [2020-10-14 08:00:37,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:37,401 INFO L225 Difference]: With dead ends: 24521 [2020-10-14 08:00:37,401 INFO L226 Difference]: Without dead ends: 24519 [2020-10-14 08:00:37,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2020-10-14 08:00:37,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24519 states. [2020-10-14 08:00:39,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24519 to 22401. [2020-10-14 08:00:39,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22401 states. [2020-10-14 08:00:39,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22401 states to 22401 states and 29088 transitions. [2020-10-14 08:00:39,309 INFO L78 Accepts]: Start accepts. Automaton has 22401 states and 29088 transitions. Word has length 74 [2020-10-14 08:00:39,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:39,310 INFO L479 AbstractCegarLoop]: Abstraction has 22401 states and 29088 transitions. [2020-10-14 08:00:39,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 08:00:39,310 INFO L276 IsEmpty]: Start isEmpty. Operand 22401 states and 29088 transitions. [2020-10-14 08:00:39,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-14 08:00:39,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:39,321 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:00:39,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:00:39,321 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:39,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:39,321 INFO L82 PathProgramCache]: Analyzing trace with hash 451363232, now seen corresponding path program 1 times [2020-10-14 08:00:39,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:39,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [127238663] [2020-10-14 08:00:39,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:39,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:39,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 08:00:40,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:00:40,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1325 [2020-10-14 08:00:40,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:00:40,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 08:00:40,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 08:00:40,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:40,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:40,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:00:40,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:40,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:40,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:40,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:40,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:40,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:00:40,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:40,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:40,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 08:00:40,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:40,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:00:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:40,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:00:40,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:40,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:40,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:40,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:40,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:00:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:00:40,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:00:40,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:40,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:40,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:00:40,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:40,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:00:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:40,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:40,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:40,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:40,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:00:40,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:40,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:00:40,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:40,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:40,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:40,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:40,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:00:40,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:40,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:00:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:40,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:40,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:40,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:40,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:40,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:40,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:00:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:40,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:40,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:40,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:40,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:40,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:40,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 08:00:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:00:40,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:00:40,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:00:40,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:40,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:00:40,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:40,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 08:00:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:41,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:41,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:41,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:41,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:00:41,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:41,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:41,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:41,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:41,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:41,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:41,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 08:00:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:41,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:41,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:41,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:41,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:41,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:41,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:41,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:41,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:41,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:41,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:41,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:41,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-14 08:00:41,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:41,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:41,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:41,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:41,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:41,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:41,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:41,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:41,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:41,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:00:41,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:41,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:41,070 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-14 08:00:41,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [127238663] [2020-10-14 08:00:41,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:00:41,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 08:00:41,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247887011] [2020-10-14 08:00:41,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 08:00:41,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:41,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 08:00:41,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:00:41,073 INFO L87 Difference]: Start difference. First operand 22401 states and 29088 transitions. Second operand 11 states. [2020-10-14 08:00:44,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:44,720 INFO L93 Difference]: Finished difference Result 62331 states and 82118 transitions. [2020-10-14 08:00:44,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-14 08:00:44,721 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 113 [2020-10-14 08:00:44,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:45,050 INFO L225 Difference]: With dead ends: 62331 [2020-10-14 08:00:45,052 INFO L226 Difference]: Without dead ends: 44817 [2020-10-14 08:00:45,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=185, Invalid=627, Unknown=0, NotChecked=0, Total=812 [2020-10-14 08:00:45,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44817 states. [2020-10-14 08:00:47,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44817 to 43713. [2020-10-14 08:00:47,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43713 states. [2020-10-14 08:00:47,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43713 states to 43713 states and 56972 transitions. [2020-10-14 08:00:47,390 INFO L78 Accepts]: Start accepts. Automaton has 43713 states and 56972 transitions. Word has length 113 [2020-10-14 08:00:47,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:47,391 INFO L479 AbstractCegarLoop]: Abstraction has 43713 states and 56972 transitions. [2020-10-14 08:00:47,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 08:00:47,391 INFO L276 IsEmpty]: Start isEmpty. Operand 43713 states and 56972 transitions. [2020-10-14 08:00:47,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-14 08:00:47,399 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:47,399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:00:47,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:00:47,399 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:47,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:47,400 INFO L82 PathProgramCache]: Analyzing trace with hash 80318565, now seen corresponding path program 1 times [2020-10-14 08:00:47,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:47,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [926802474] [2020-10-14 08:00:47,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:47,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:47,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:47,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:47,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:48,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:52,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:52,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 08:00:52,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:00:52,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 08:00:52,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:52,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:52,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:52,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-14 08:00:52,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-14 08:00:52,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:52,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:52,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:52,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:52,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:52,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:52,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:52,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:52,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:52,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:52,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:52,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:52,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:52,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:52,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:52,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:52,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:52,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:52,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:52,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:52,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:52,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:52,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:52,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:52,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:52,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:00:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:52,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:52,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:52,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:52,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:52,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:00:52,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:52,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:52,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:52,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:52,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:52,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:52,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:00:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:52,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:52,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:52,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:52,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:52,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:52,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:52,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:52,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:52,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:52,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:52,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:52,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 08:00:52,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:52,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:52,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:52,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:00:52,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:52,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:00:52,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:52,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:52,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:52,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:52,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:00:52,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:52,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:00:52,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:52,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:52,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:52,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:52,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:52,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:52,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:52,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:52,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:52,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:52,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:00:52,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:52,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:00:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:52,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:52,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:52,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:52,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:52,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:52,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:52,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:52,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:52,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:52,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:52,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:52,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:00:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:52,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:52,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:52,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:52,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:52,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:00:52,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:52,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:52,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:52,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:52,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:52,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:52,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 08:00:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:52,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:52,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:52,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:52,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:52,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:00:52,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:52,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:52,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:52,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:52,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:00:52,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:52,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 08:00:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:52,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:52,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:52,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:00:52,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:52,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:52,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:52,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:00:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:52,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:52,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 08:00:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:52,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:52,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:52,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:52,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:52,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:00:52,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:52,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:52,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:52,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:00:52,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:52,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:52,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 08:00:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:52,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:52,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:52,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:52,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:52,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:00:52,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:52,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:52,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:52,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:52,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:52,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:52,754 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 08:00:52,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [926802474] [2020-10-14 08:00:52,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:00:52,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 08:00:52,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606293947] [2020-10-14 08:00:52,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:00:52,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:52,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:00:52,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:00:52,756 INFO L87 Difference]: Start difference. First operand 43713 states and 56972 transitions. Second operand 9 states. [2020-10-14 08:00:54,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:54,882 INFO L93 Difference]: Finished difference Result 76148 states and 99050 transitions. [2020-10-14 08:00:54,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:00:54,883 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 113 [2020-10-14 08:00:54,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:54,999 INFO L225 Difference]: With dead ends: 76148 [2020-10-14 08:00:55,000 INFO L226 Difference]: Without dead ends: 32522 [2020-10-14 08:00:55,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:00:55,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32522 states. [2020-10-14 08:00:56,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32522 to 30505. [2020-10-14 08:00:56,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30505 states. [2020-10-14 08:00:56,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30505 states to 30505 states and 38228 transitions. [2020-10-14 08:00:56,642 INFO L78 Accepts]: Start accepts. Automaton has 30505 states and 38228 transitions. Word has length 113 [2020-10-14 08:00:56,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:56,642 INFO L479 AbstractCegarLoop]: Abstraction has 30505 states and 38228 transitions. [2020-10-14 08:00:56,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:00:56,642 INFO L276 IsEmpty]: Start isEmpty. Operand 30505 states and 38228 transitions. [2020-10-14 08:00:56,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-14 08:00:56,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:56,648 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:00:56,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 08:00:56,648 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:56,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:56,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1847857171, now seen corresponding path program 1 times [2020-10-14 08:00:56,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:56,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [228399194] [2020-10-14 08:00:56,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:56,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:56,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:56,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:57,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:00,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:01,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:01,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 08:01:01,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:01:01,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 08:01:01,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:01,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:01,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 08:01:01,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:01:01,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 08:01:01,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:02,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:01:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:02,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:02,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:02,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:01:02,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:02,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:01:02,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:02,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:02,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:02,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:02,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:02,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:02,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:01:02,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:02,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:02,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:02,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:01:02,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:02,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:01:02,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:02,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:02,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:02,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:02,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:01:02,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:02,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:01:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:02,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:02,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:02,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:01:02,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:02,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:01:02,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:02,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:02,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:02,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:02,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:01:02,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:02,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:01:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:02,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:02,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:02,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:01:02,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:02,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 08:01:02,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:02,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:02,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:01:02,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:01:02,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:01:02,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:02,781 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 34 [2020-10-14 08:01:02,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:01:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:02,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:02,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:02,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:02,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:02,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:01:02,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:02,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:02,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:02,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:02,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:01:02,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:02,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:01:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:02,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:02,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:02,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:02,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:02,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:01:02,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:02,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:02,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:02,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:02,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:01:02,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:02,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:01:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:02,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:02,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:02,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:02,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:02,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:01:02,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:02,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:02,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:02,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:02,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:02,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:02,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:01:02,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:02,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:02,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:02,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:01:02,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:02,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:02,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:02,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:02,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:02,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:02,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:01:02,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:02,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 08:01:02,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:02,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:02,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:02,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:01:02,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:02,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:01:02,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:02,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:02,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:02,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:02,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:01:02,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:02,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 08:01:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:02,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:02,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:02,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:02,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:02,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:01:02,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:02,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:02,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:01:02,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:01:02,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:01:02,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:03,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 08:01:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:03,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:03,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:03,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:03,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:03,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:03,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:03,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:03,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:03,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:01:03,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:03,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:03,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 08:01:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:03,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:03,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:03,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:01:03,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:03,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:01:03,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:03,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:03,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:03,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:01:03,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:03,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:03,093 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 08:01:03,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [228399194] [2020-10-14 08:01:03,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:01:03,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 08:01:03,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35887265] [2020-10-14 08:01:03,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 08:01:03,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:01:03,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 08:01:03,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:01:03,097 INFO L87 Difference]: Start difference. First operand 30505 states and 38228 transitions. Second operand 15 states. [2020-10-14 08:01:03,282 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-14 08:01:03,895 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-14 08:01:06,521 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 08:01:09,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:01:09,097 INFO L93 Difference]: Finished difference Result 102245 states and 128494 transitions. [2020-10-14 08:01:09,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-14 08:01:09,098 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 114 [2020-10-14 08:01:09,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:01:09,350 INFO L225 Difference]: With dead ends: 102245 [2020-10-14 08:01:09,351 INFO L226 Difference]: Without dead ends: 77048 [2020-10-14 08:01:09,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=434, Invalid=1918, Unknown=0, NotChecked=0, Total=2352 [2020-10-14 08:01:09,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77048 states. [2020-10-14 08:01:12,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77048 to 72514. [2020-10-14 08:01:12,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72514 states. [2020-10-14 08:01:12,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72514 states to 72514 states and 91651 transitions. [2020-10-14 08:01:12,764 INFO L78 Accepts]: Start accepts. Automaton has 72514 states and 91651 transitions. Word has length 114 [2020-10-14 08:01:12,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:01:12,765 INFO L479 AbstractCegarLoop]: Abstraction has 72514 states and 91651 transitions. [2020-10-14 08:01:12,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 08:01:12,765 INFO L276 IsEmpty]: Start isEmpty. Operand 72514 states and 91651 transitions. [2020-10-14 08:01:12,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-14 08:01:12,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:01:12,777 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:01:12,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 08:01:12,778 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:01:12,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:01:12,778 INFO L82 PathProgramCache]: Analyzing trace with hash -960634325, now seen corresponding path program 1 times [2020-10-14 08:01:12,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:01:12,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [90075226] [2020-10-14 08:01:12,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:01:12,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:12,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:12,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:12,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:15,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:16,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:17,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:17,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 08:01:17,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:01:17,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 08:01:17,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:17,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:17,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:01:17,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 08:01:17,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 08:01:17,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:17,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:01:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:17,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:17,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:17,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:01:17,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:17,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:01:17,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:17,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:17,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:17,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:17,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:17,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:17,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:01:17,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:17,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:17,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:17,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:01:17,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:17,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:01:17,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:17,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:17,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:17,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:17,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:01:17,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:01:17,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:01:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:17,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:17,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:17,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:01:17,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:17,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:01:17,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:17,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:17,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:17,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:17,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:01:17,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:17,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:01:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:17,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:17,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:17,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:01:17,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:17,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:01:17,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:17,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:17,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:01:17,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:01:17,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:01:17,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:18,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:01:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:18,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:18,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:18,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:18,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:18,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:01:18,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:18,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:18,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:18,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:18,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:01:18,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:18,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:01:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:18,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:18,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:18,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:18,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:18,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:01:18,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:18,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:18,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:18,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:18,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:01:18,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:18,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:01:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:18,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:18,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:18,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:18,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:18,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:01:18,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:18,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:18,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:18,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:18,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:18,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:18,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:01:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:18,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:18,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:18,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:01:18,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:18,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:18,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:18,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:18,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:18,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:18,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:01:18,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:18,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 08:01:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:18,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:18,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:18,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:01:18,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:18,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:01:18,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:18,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:18,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:01:18,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:01:18,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:18,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:18,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 08:01:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:18,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:18,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:18,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:18,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:18,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:01:18,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:18,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:18,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:18,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:01:18,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:18,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:18,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 08:01:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:18,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:18,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:18,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:18,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:18,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:18,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:18,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:18,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:18,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:01:18,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:18,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:18,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 08:01:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:18,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:18,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:18,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:01:18,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:18,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:01:18,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:18,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:18,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:18,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:01:18,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:18,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:18,241 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 08:01:18,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [90075226] [2020-10-14 08:01:18,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:01:18,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 08:01:18,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104724552] [2020-10-14 08:01:18,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 08:01:18,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:01:18,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 08:01:18,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:01:18,244 INFO L87 Difference]: Start difference. First operand 72514 states and 91651 transitions. Second operand 13 states. [2020-10-14 08:01:19,059 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-14 08:01:19,385 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2020-10-14 08:01:29,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:01:29,118 INFO L93 Difference]: Finished difference Result 226626 states and 284501 transitions. [2020-10-14 08:01:29,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2020-10-14 08:01:29,119 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 114 [2020-10-14 08:01:29,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:01:29,516 INFO L225 Difference]: With dead ends: 226626 [2020-10-14 08:01:29,516 INFO L226 Difference]: Without dead ends: 157967 [2020-10-14 08:01:29,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1850 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=806, Invalid=4450, Unknown=0, NotChecked=0, Total=5256 [2020-10-14 08:01:29,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157967 states. [2020-10-14 08:01:37,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157967 to 138291. [2020-10-14 08:01:37,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138291 states. [2020-10-14 08:01:38,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138291 states to 138291 states and 170933 transitions. [2020-10-14 08:01:38,072 INFO L78 Accepts]: Start accepts. Automaton has 138291 states and 170933 transitions. Word has length 114 [2020-10-14 08:01:38,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:01:38,072 INFO L479 AbstractCegarLoop]: Abstraction has 138291 states and 170933 transitions. [2020-10-14 08:01:38,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 08:01:38,072 INFO L276 IsEmpty]: Start isEmpty. Operand 138291 states and 170933 transitions. [2020-10-14 08:01:38,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-14 08:01:38,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:01:38,082 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:01:38,082 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 08:01:38,083 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:01:38,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:01:38,083 INFO L82 PathProgramCache]: Analyzing trace with hash 716535141, now seen corresponding path program 1 times [2020-10-14 08:01:38,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:01:38,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [103234738] [2020-10-14 08:01:38,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:01:38,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:38,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:38,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:38,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:38,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:40,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:43,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:43,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 08:01:43,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:01:43,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 08:01:43,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:43,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:43,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 08:01:43,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:01:43,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 08:01:43,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:43,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:01:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:43,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:43,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:43,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:01:43,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:43,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:01:43,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:43,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:43,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:43,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:43,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:43,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:43,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:01:43,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:43,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:43,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:43,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:01:43,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:43,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:01:43,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:43,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:43,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:43,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:43,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:01:43,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:43,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:01:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:43,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:43,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:43,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:01:43,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:43,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:01:43,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:43,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:43,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:43,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:43,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:01:43,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:43,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:01:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:43,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:43,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:43,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:43,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:43,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:01:43,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:43,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:43,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:43,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:43,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:01:43,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:43,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 08:01:43,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:43,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:43,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:43,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:01:43,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:43,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 08:01:43,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:43,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:43,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:01:43,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:01:43,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:01:43,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:43,511 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 31 [2020-10-14 08:01:43,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:01:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:43,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:43,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:43,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:43,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:43,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:01:43,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:43,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:43,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:43,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:43,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:01:43,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:43,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:01:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:43,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:43,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:43,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:43,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:43,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:01:43,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:43,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:43,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:43,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:43,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:43,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:43,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:01:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:43,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:43,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:43,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:01:43,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:43,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:43,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:43,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:43,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:43,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:43,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:01:43,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:43,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 08:01:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:43,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:43,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:43,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:01:43,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:43,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:01:43,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:43,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:43,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:43,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:43,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:01:43,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:43,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 08:01:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:43,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:43,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:43,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:01:43,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:43,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:01:43,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:43,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:43,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:43,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:43,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:01:43,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:43,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 08:01:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:43,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:43,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:43,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:43,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:43,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:01:43,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:43,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:43,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:01:43,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:01:43,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:01:43,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:43,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 08:01:43,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:43,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:43,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:43,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:01:43,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:43,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:01:43,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:43,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:43,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:43,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:01:43,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:43,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:43,775 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 08:01:43,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [103234738] [2020-10-14 08:01:43,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:01:43,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 08:01:43,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263250384] [2020-10-14 08:01:43,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 08:01:43,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:01:43,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 08:01:43,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:01:43,780 INFO L87 Difference]: Start difference. First operand 138291 states and 170933 transitions. Second operand 15 states. [2020-10-14 08:01:43,963 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-14 08:01:44,560 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 108 [2020-10-14 08:01:45,925 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 110 [2020-10-14 08:01:48,258 WARN L193 SmtUtils]: Spent 1.83 s on a formula simplification that was a NOOP. DAG size: 39 [2020-10-14 08:01:49,802 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-14 08:02:04,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:02:04,576 INFO L93 Difference]: Finished difference Result 475809 states and 591535 transitions. [2020-10-14 08:02:04,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-14 08:02:04,576 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 114 [2020-10-14 08:02:04,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:02:05,425 INFO L225 Difference]: With dead ends: 475809 [2020-10-14 08:02:05,425 INFO L226 Difference]: Without dead ends: 360035 [2020-10-14 08:02:05,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=479, Invalid=1971, Unknown=0, NotChecked=0, Total=2450 [2020-10-14 08:02:06,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360035 states. [2020-10-14 08:02:25,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360035 to 344034. [2020-10-14 08:02:25,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344034 states. [2020-10-14 08:02:26,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344034 states to 344034 states and 428699 transitions. [2020-10-14 08:02:26,653 INFO L78 Accepts]: Start accepts. Automaton has 344034 states and 428699 transitions. Word has length 114 [2020-10-14 08:02:26,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:02:26,653 INFO L479 AbstractCegarLoop]: Abstraction has 344034 states and 428699 transitions. [2020-10-14 08:02:26,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 08:02:26,654 INFO L276 IsEmpty]: Start isEmpty. Operand 344034 states and 428699 transitions. [2020-10-14 08:02:26,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-14 08:02:26,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:02:26,671 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:02:26,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 08:02:26,672 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:02:26,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:02:26,672 INFO L82 PathProgramCache]: Analyzing trace with hash -15432285, now seen corresponding path program 1 times [2020-10-14 08:02:26,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:02:26,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [125400503] [2020-10-14 08:02:26,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:02:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:26,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:26,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:26,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:26,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:28,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:33,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:33,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 08:02:33,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:02:33,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7093 [2020-10-14 08:02:33,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:33,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:33,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:02:33,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 08:02:33,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-14 08:02:33,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:33,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:02:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:33,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:33,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:33,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:02:33,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:33,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:02:33,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:33,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:33,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:33,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:33,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:33,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:33,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:02:33,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:33,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:33,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:33,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:02:33,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:33,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:02:33,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:33,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:33,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:33,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:33,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:02:33,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:33,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:02:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:33,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:33,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:33,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:02:33,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:33,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:02:33,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:33,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:33,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:33,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:33,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:02:33,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:33,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:02:33,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:33,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:33,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:33,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:02:33,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:33,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:02:33,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:33,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:33,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:33,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:33,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:02:33,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:33,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 08:02:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:33,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:33,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:33,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:02:33,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:33,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:02:33,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:33,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:33,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:02:33,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:02:33,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:02:33,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:34,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:02:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:34,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:34,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:34,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:02:34,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:34,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:02:34,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:34,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:34,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:34,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:34,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:02:34,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:34,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:02:34,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:34,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:34,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:34,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:02:34,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:34,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:02:34,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:34,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:34,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:34,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:34,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:02:34,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:34,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:02:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:34,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:34,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:34,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:02:34,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:34,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:02:34,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:34,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:34,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:34,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:34,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:02:34,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:34,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 08:02:34,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:34,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:34,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:34,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:02:34,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:34,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:02:34,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:34,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:34,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:34,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:34,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:02:34,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:34,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 08:02:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:34,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:34,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:34,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:02:34,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:34,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:02:34,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:34,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:34,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:02:34,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:02:34,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:02:34,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:34,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 08:02:34,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:34,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:34,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:34,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:02:34,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:34,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:02:34,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:34,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:34,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:34,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:02:34,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:34,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:34,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 08:02:34,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:34,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:34,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:34,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:02:34,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:34,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:02:34,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:34,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:34,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:34,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:02:34,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:34,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:34,173 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 08:02:34,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [125400503] [2020-10-14 08:02:34,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:02:34,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 08:02:34,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482361723] [2020-10-14 08:02:34,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 08:02:34,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:02:34,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 08:02:34,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:02:34,176 INFO L87 Difference]: Start difference. First operand 344034 states and 428699 transitions. Second operand 13 states. [2020-10-14 08:02:34,910 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-14 08:02:35,237 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2020-10-14 08:03:12,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:03:12,841 INFO L93 Difference]: Finished difference Result 971720 states and 1209981 transitions. [2020-10-14 08:03:12,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-10-14 08:03:12,842 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 114 [2020-10-14 08:03:12,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:03:14,307 INFO L225 Difference]: With dead ends: 971720 [2020-10-14 08:03:14,308 INFO L226 Difference]: Without dead ends: 635743 [2020-10-14 08:03:14,727 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1670 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=761, Invalid=4069, Unknown=0, NotChecked=0, Total=4830 [2020-10-14 08:03:15,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635743 states.