/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_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:08:52,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:08:52,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:08:52,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:08:52,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:08:52,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:08:52,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:08:52,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:08:52,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:08:52,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:08:52,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:08:52,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:08:52,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:08:52,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:08:52,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:08:52,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:08:52,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:08:52,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:08:52,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:08:52,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:08:52,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:08:52,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:08:52,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:08:52,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:08:52,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:08:52,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:08:52,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:08:52,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:08:52,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:08:52,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:08:52,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:08:52,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:08:52,591 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:08:52,592 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:08:52,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:08:52,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:08:52,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:08:52,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:08:52,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:08:52,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:08:52,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:08:52,597 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 08:08:52,634 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:08:52,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:08:52,639 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:08:52,639 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:08:52,639 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:08:52,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:08:52,640 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:08:52,640 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:08:52,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:08:52,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:08:52,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:08:52,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:08:52,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:08:52,644 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:08:52,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:08:52,645 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:08:52,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:08:52,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:08:52,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:08:52,646 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:08:52,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:08:52,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:08:52,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:08:52,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:08:52,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:08:52,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:08:52,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:08:52,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:08:52,650 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:08:52,650 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 08:08:52,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:08:53,013 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:08:53,016 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:08:53,018 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:08:53,019 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:08:53,019 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-14 08:08:53,085 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea4388e05/a0be7528b37e47638e542bf48bfc0433/FLAG8aa9194bb [2020-10-14 08:08:53,694 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:08:53,695 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-14 08:08:53,715 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea4388e05/a0be7528b37e47638e542bf48bfc0433/FLAG8aa9194bb [2020-10-14 08:08:53,911 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea4388e05/a0be7528b37e47638e542bf48bfc0433 [2020-10-14 08:08:53,921 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:08:53,924 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:08:53,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:08:53,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:08:53,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:08:53,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:08:53" (1/1) ... [2020-10-14 08:08:53,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71155234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:08:53, skipping insertion in model container [2020-10-14 08:08:53,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:08:53" (1/1) ... [2020-10-14 08:08:53,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:08:54,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:08:54,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:08:54,510 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:08:54,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:08:54,631 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:08:54,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:08:54 WrapperNode [2020-10-14 08:08:54,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:08:54,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:08:54,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:08:54,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:08:54,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:08:54" (1/1) ... [2020-10-14 08:08:54,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:08:54" (1/1) ... [2020-10-14 08:08:54,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:08:54" (1/1) ... [2020-10-14 08:08:54,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:08:54" (1/1) ... [2020-10-14 08:08:54,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:08:54" (1/1) ... [2020-10-14 08:08:54,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:08:54" (1/1) ... [2020-10-14 08:08:54,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:08:54" (1/1) ... [2020-10-14 08:08:54,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:08:54,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:08:54,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:08:54,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:08:54,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:08:54" (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 08:08:54,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:08:54,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:08:54,842 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:08:54,842 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 08:08:54,842 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 08:08:54,842 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 08:08:54,842 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-14 08:08:54,844 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 08:08:54,844 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 08:08:54,844 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:08:54,844 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 08:08:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:08:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:08:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 08:08:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:08:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:08:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:08:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:08:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:08:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:08:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:08:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:08:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:08:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 08:08:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:08:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:08:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:08:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:08:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:08:56,257 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:08:56,258 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 08:08:56,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:08:56 BoogieIcfgContainer [2020-10-14 08:08:56,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:08:56,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:08:56,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:08:56,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:08:56,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:08:53" (1/3) ... [2020-10-14 08:08:56,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f6779c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:08:56, skipping insertion in model container [2020-10-14 08:08:56,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:08:54" (2/3) ... [2020-10-14 08:08:56,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f6779c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:08:56, skipping insertion in model container [2020-10-14 08:08:56,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:08:56" (3/3) ... [2020-10-14 08:08:56,274 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-14 08:08:56,287 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:08:56,296 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 08:08:56,312 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 08:08:56,343 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:08:56,343 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:08:56,343 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:08:56,344 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:08:56,344 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:08:56,344 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:08:56,344 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:08:56,345 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:08:56,373 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states. [2020-10-14 08:08:56,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 08:08:56,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:56,391 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:08:56,391 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:56,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:56,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1394986335, now seen corresponding path program 1 times [2020-10-14 08:08:56,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:56,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [588445919] [2020-10-14 08:08:56,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:56,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:57,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:57,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 08:08:57,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:57,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 600 [2020-10-14 08:08:57,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:57,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:57,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:57,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-14 08:08:57,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:57,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 08:08:57,968 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:08:57,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:57,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:58,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:58,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:58,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:58,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 08:08:58,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:58,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:58,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:58,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:58,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:58,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:58,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:58,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:58,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:58,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 08:08:58,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:58,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 08:08:58,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:58,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:58,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:58,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:58,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:58,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:58,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:08:58,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:58,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:58,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:58,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:58,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:58,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:08:58,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:58,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:58,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:58,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 08:08:58,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:58,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:58,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:08:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:58,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:58,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:58,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:58,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:58,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 08:08:58,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:58,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:58,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:58,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:08:58,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:58,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 08:08:58,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:08:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:58,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:58,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:58,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:58,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:58,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:08:58,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:58,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:58,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:58,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:08:58,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:58,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:58,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 08:08:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:58,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:58,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:58,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:58,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:58,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:08:58,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:58,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:58,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:58,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:08:58,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:58,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:58,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 08:08:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:58,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:58,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:58,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:58,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:58,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:08:58,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:58,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:58,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:58,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:08:58,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:58,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:58,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 08:08:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:58,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:58,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:58,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:58,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:58,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:08:58,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:58,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:58,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:58,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:58,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:58,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:58,491 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 08:08:58,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [588445919] [2020-10-14 08:08:58,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:58,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:08:58,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055394442] [2020-10-14 08:08:58,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:08:58,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:58,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:08:58,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:08:58,518 INFO L87 Difference]: Start difference. First operand 365 states. Second operand 7 states. [2020-10-14 08:08:59,867 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:09:00,368 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:09:01,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:01,493 INFO L93 Difference]: Finished difference Result 560 states and 943 transitions. [2020-10-14 08:09:01,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:09:01,495 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2020-10-14 08:09:01,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:01,515 INFO L225 Difference]: With dead ends: 560 [2020-10-14 08:09:01,515 INFO L226 Difference]: Without dead ends: 400 [2020-10-14 08:09:01,520 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:09:01,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2020-10-14 08:09:01,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 360. [2020-10-14 08:09:01,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-10-14 08:09:01,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 619 transitions. [2020-10-14 08:09:01,617 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 619 transitions. Word has length 108 [2020-10-14 08:09:01,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:09:01,618 INFO L479 AbstractCegarLoop]: Abstraction has 360 states and 619 transitions. [2020-10-14 08:09:01,618 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:09:01,618 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 619 transitions. [2020-10-14 08:09:01,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 08:09:01,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:01,623 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:09:01,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:09:01,624 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:01,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:01,624 INFO L82 PathProgramCache]: Analyzing trace with hash -501499997, now seen corresponding path program 1 times [2020-10-14 08:09:01,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:01,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1455964725] [2020-10-14 08:09:01,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:01,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:01,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:02,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:02,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 08:09:02,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:02,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1284 [2020-10-14 08:09:02,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:02,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:02,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:09:02,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-14 08:09:02,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:09:02,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:03,474 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:09:03,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:09:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:03,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:03,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:03,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:09:03,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:03,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 08:09:03,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:03,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:03,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:03,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:03,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:03,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:03,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:09:03,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:03,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:03,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:03,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 08:09:03,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:03,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-10-14 08:09:03,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:03,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:03,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:09:03,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:03,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 08:09:03,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:03,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:09:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:03,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:03,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:03,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:09:03,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:03,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:09:03,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:03,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:03,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:09:03,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 08:09:03,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:09:03,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:04,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:09:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:04,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:04,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:04,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:04,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:04,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:09:04,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:04,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:04,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:04,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:09:04,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:04,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:04,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:09:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:04,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:04,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:04,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:04,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:04,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 08:09:04,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:04,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:04,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:04,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:09:04,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:04,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:09:04,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 08:09:04,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:04,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:04,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:04,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:04,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:04,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:09:04,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:04,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:04,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:04,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:09:04,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:04,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:04,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 08:09:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:04,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:04,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:04,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:04,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:04,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:09:04,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:04,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:04,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:04,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:09:04,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:04,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:04,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 08:09:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:04,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:04,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:04,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:09:04,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:04,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:09:04,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:04,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:04,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:04,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:04,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:04,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:04,478 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 08:09:04,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1455964725] [2020-10-14 08:09:04,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:09:04,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 08:09:04,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293302166] [2020-10-14 08:09:04,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 08:09:04,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:09:04,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 08:09:04,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:09:04,488 INFO L87 Difference]: Start difference. First operand 360 states and 619 transitions. Second operand 13 states. [2020-10-14 08:09:06,779 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-14 08:09:07,179 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-14 08:09:07,754 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-14 08:09:08,121 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-14 08:09:11,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:11,296 INFO L93 Difference]: Finished difference Result 558 states and 935 transitions. [2020-10-14 08:09:11,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:09:11,297 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 108 [2020-10-14 08:09:11,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:11,302 INFO L225 Difference]: With dead ends: 558 [2020-10-14 08:09:11,302 INFO L226 Difference]: Without dead ends: 400 [2020-10-14 08:09:11,305 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-14 08:09:11,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2020-10-14 08:09:11,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 360. [2020-10-14 08:09:11,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-10-14 08:09:11,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 573 transitions. [2020-10-14 08:09:11,347 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 573 transitions. Word has length 108 [2020-10-14 08:09:11,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:09:11,347 INFO L479 AbstractCegarLoop]: Abstraction has 360 states and 573 transitions. [2020-10-14 08:09:11,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 08:09:11,348 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 573 transitions. [2020-10-14 08:09:11,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-14 08:09:11,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:11,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:09:11,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:09:11,351 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:11,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:11,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1869459725, now seen corresponding path program 1 times [2020-10-14 08:09:11,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:11,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [622192647] [2020-10-14 08:09:11,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:11,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:11,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:11,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:13,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:13,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:16,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:16,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-14 08:09:16,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:09:16,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 08:09:16,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:16,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:16,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:09:16,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 08:09:16,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 08:09:16,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:16,935 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:09:16,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:09:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:16,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:16,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:16,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:09:16,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:16,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:09:16,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:16,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:16,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:16,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:16,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:16,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:16,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:09:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:17,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:17,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:17,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:09:17,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:17,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-14 08:09:17,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:17,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:17,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:17,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:17,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 08:09:17,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:17,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:09:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:17,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:17,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:17,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:09:17,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:17,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:09:17,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:17,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:17,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:17,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:17,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:09:17,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:17,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:09:17,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:17,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:17,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:17,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:17,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:17,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:09:17,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:17,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:17,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:17,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:17,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:17,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:17,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:09:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:17,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:17,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:17,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:17,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:17,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:09:17,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:17,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:17,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:17,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:17,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:17,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:17,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:09:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:17,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:17,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:17,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:17,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:17,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:09:17,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:17,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:17,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:17,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:17,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:17,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:17,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:09:17,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:17,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:17,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:17,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:17,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:17,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:09:17,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:17,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:17,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:09:17,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:09:17,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:09:17,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:17,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-14 08:09:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:17,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:17,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:17,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:09:17,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:17,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:09:17,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:17,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:17,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:17,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:17,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:17,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:17,542 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 08:09:17,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [622192647] [2020-10-14 08:09:17,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:09:17,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:09:17,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718863228] [2020-10-14 08:09:17,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:09:17,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:09:17,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:09:17,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:09:17,545 INFO L87 Difference]: Start difference. First operand 360 states and 573 transitions. Second operand 10 states. [2020-10-14 08:09:17,981 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:09:19,890 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 08:09:20,292 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 08:09:21,287 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:09:21,989 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:09:23,101 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-14 08:09:23,230 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 08:09:23,363 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-14 08:09:23,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:23,665 INFO L93 Difference]: Finished difference Result 750 states and 1199 transitions. [2020-10-14 08:09:23,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:09:23,665 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 153 [2020-10-14 08:09:23,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:23,672 INFO L225 Difference]: With dead ends: 750 [2020-10-14 08:09:23,672 INFO L226 Difference]: Without dead ends: 598 [2020-10-14 08:09:23,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:09:23,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-10-14 08:09:23,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 512. [2020-10-14 08:09:23,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2020-10-14 08:09:23,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 818 transitions. [2020-10-14 08:09:23,723 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 818 transitions. Word has length 153 [2020-10-14 08:09:23,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:09:23,724 INFO L479 AbstractCegarLoop]: Abstraction has 512 states and 818 transitions. [2020-10-14 08:09:23,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:09:23,724 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 818 transitions. [2020-10-14 08:09:23,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-14 08:09:23,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:23,727 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:09:23,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:09:23,728 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:23,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:23,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1760758797, now seen corresponding path program 1 times [2020-10-14 08:09:23,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:23,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20016185] [2020-10-14 08:09:23,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:23,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:24,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:24,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:25,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:25,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:25,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:26,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:28,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:28,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 08:09:28,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:09:28,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 08:09:28,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:28,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:28,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:09:28,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:09:28,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-14 08:09:28,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:29,195 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:09:29,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:09:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:29,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:29,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:29,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:09:29,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:29,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:09:29,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:29,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:29,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:29,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:29,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:29,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:29,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:09:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:29,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:29,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:29,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:09:29,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:29,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-14 08:09:29,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:29,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:29,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:09:29,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:29,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 08:09:29,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:29,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:09:29,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:29,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:29,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:29,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:09:29,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:29,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:09:29,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:29,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:29,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:29,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:29,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:09:29,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:29,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:09:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:29,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:29,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:29,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:29,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:29,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:09:29,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:29,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:29,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:29,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:29,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:29,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:29,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:09:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:29,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:29,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:29,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:29,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:29,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:09:29,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:29,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:29,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:29,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:29,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:29,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:29,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:09:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:29,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:29,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:29,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:29,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:29,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:09:29,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:29,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:29,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:29,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:29,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:29,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:29,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:09:29,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:29,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:29,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:29,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:09:29,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:29,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:09:29,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:29,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:29,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:29,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:29,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:09:29,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:29,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-14 08:09:29,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:29,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:29,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:29,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:09:29,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:29,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:09:29,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:29,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:29,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:29,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:30,006 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 08:09:30,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [20016185] [2020-10-14 08:09:30,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:09:30,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:09:30,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823641721] [2020-10-14 08:09:30,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:09:30,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:09:30,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:09:30,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:09:30,009 INFO L87 Difference]: Start difference. First operand 512 states and 818 transitions. Second operand 10 states. [2020-10-14 08:09:30,510 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:09:30,934 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-14 08:09:31,577 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-10-14 08:09:32,316 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 258 [2020-10-14 08:09:37,063 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:09:37,433 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:09:38,133 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:09:38,411 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:09:39,475 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:09:39,770 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:09:40,782 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:09:41,220 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:09:42,085 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:09:43,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:43,333 INFO L93 Difference]: Finished difference Result 2137 states and 3434 transitions. [2020-10-14 08:09:43,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 08:09:43,334 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2020-10-14 08:09:43,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:43,345 INFO L225 Difference]: With dead ends: 2137 [2020-10-14 08:09:43,345 INFO L226 Difference]: Without dead ends: 1662 [2020-10-14 08:09:43,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 08:09:43,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2020-10-14 08:09:43,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 1438. [2020-10-14 08:09:43,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1438 states. [2020-10-14 08:09:43,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 2295 transitions. [2020-10-14 08:09:43,501 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 2295 transitions. Word has length 156 [2020-10-14 08:09:43,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:09:43,502 INFO L479 AbstractCegarLoop]: Abstraction has 1438 states and 2295 transitions. [2020-10-14 08:09:43,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:09:43,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 2295 transitions. [2020-10-14 08:09:43,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-14 08:09:43,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:43,507 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:09:43,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:09:43,507 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:43,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:43,508 INFO L82 PathProgramCache]: Analyzing trace with hash -897536887, now seen corresponding path program 1 times [2020-10-14 08:09:43,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:43,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095748003] [2020-10-14 08:09:43,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:43,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:43,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:43,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:44,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:46,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:47,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:47,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:48,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:48,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-14 08:09:48,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:09:48,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 08:09:48,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:48,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:48,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:09:48,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:09:48,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 08:09:48,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:49,076 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:09:49,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:09:49,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:49,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:49,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:49,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:09:49,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:49,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 08:09:49,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:49,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:49,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:49,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:49,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:49,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:49,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:09:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:49,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:49,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:49,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:09:49,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:49,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-14 08:09:49,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:49,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:49,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:09:49,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:49,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:09:49,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:49,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:09:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:49,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:49,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:49,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:09:49,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:49,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:09:49,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:49,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:49,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:49,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:49,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:09:49,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:49,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:09:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:49,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:49,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:49,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:49,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:49,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:09:49,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:49,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:49,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:49,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:49,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:09:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:49,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:49,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:49,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:49,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:49,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:09:49,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:49,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:49,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:49,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:49,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:49,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:49,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:09:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:49,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:49,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:49,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:49,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:49,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:09:49,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:49,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:49,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:49,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:49,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:49,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:49,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:09:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:49,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:49,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:49,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:09:49,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:49,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:09:49,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:49,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:49,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:49,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:09:49,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:09:49,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:49,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 08:09:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:49,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:49,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:49,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:09:49,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:49,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:49,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:49,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:49,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:49,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:49,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:49,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:49,762 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 08:09:49,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095748003] [2020-10-14 08:09:49,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:09:49,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:09:49,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638003232] [2020-10-14 08:09:49,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:09:49,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:09:49,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:09:49,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:09:49,765 INFO L87 Difference]: Start difference. First operand 1438 states and 2295 transitions. Second operand 10 states. [2020-10-14 08:09:50,180 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:09:50,607 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-10-14 08:09:51,121 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-14 08:09:51,940 WARN L193 SmtUtils]: Spent 799.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 258 [2020-10-14 08:09:56,988 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:09:57,420 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:09:58,037 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:09:58,431 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:09:59,325 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:09:59,751 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:10:00,640 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:10:01,225 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:10:01,976 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:10:03,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:03,198 INFO L93 Difference]: Finished difference Result 6055 states and 9699 transitions. [2020-10-14 08:10:03,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 08:10:03,201 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-10-14 08:10:03,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:03,223 INFO L225 Difference]: With dead ends: 6055 [2020-10-14 08:10:03,223 INFO L226 Difference]: Without dead ends: 4744 [2020-10-14 08:10:03,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 08:10:03,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4744 states. [2020-10-14 08:10:03,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4744 to 4132. [2020-10-14 08:10:03,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4132 states. [2020-10-14 08:10:03,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4132 states to 4132 states and 6574 transitions. [2020-10-14 08:10:03,587 INFO L78 Accepts]: Start accepts. Automaton has 4132 states and 6574 transitions. Word has length 157 [2020-10-14 08:10:03,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:10:03,588 INFO L479 AbstractCegarLoop]: Abstraction has 4132 states and 6574 transitions. [2020-10-14 08:10:03,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:10:03,588 INFO L276 IsEmpty]: Start isEmpty. Operand 4132 states and 6574 transitions. [2020-10-14 08:10:03,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-14 08:10:03,597 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:03,597 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:10:03,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:10:03,598 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:03,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:03,598 INFO L82 PathProgramCache]: Analyzing trace with hash 531352680, now seen corresponding path program 1 times [2020-10-14 08:10:03,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:03,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009653467] [2020-10-14 08:10:03,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:03,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:03,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:03,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:04,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:05,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:05,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:06,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:08,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:08,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 08:10:08,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:10:08,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 08:10:08,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:08,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:08,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:10:08,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:10:08,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-14 08:10:08,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:10:09,098 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:10:09,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:09,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:09,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:09,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:09,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:09,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:10:09,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:09,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:09,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:09,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:09,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:09,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:09,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:09,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:09,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:09,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:10:09,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:09,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 08:10:09,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:09,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:09,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:10:09,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:09,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 08:10:09,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:09,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:10:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:09,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:09,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:09,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:09,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:09,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:10:09,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:09,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:09,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:09,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:09,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:10:09,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:09,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:10:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:09,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:09,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:09,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:09,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:09,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:10:09,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:09,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:09,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:09,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:09,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:09,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:09,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:10:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:09,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:09,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:09,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:09,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:09,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:10:09,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:09,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:09,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:09,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:09,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:09,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:09,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:10:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:09,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:09,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:09,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:09,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:09,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:10:09,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:09,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:09,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:09,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:09,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:09,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:09,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:10:09,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:09,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:09,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:09,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:10:09,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:09,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:10:09,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:09,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:09,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:09,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:10:09,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:10:09,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:09,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-14 08:10:09,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:09,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:09,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:09,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:09,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:09,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:09,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:09,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:09,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:09,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:09,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:09,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:09,728 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 08:10:09,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1009653467] [2020-10-14 08:10:09,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:09,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:10:09,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900322714] [2020-10-14 08:10:09,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:10:09,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:09,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:10:09,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:10:09,731 INFO L87 Difference]: Start difference. First operand 4132 states and 6574 transitions. Second operand 10 states. [2020-10-14 08:10:10,151 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:10:10,596 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-10-14 08:10:11,316 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-14 08:10:12,115 WARN L193 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 258 [2020-10-14 08:10:16,756 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:10:17,097 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:10:17,712 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:10:18,039 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:10:18,600 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:19,072 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:10:19,420 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:10:20,359 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:10:20,852 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:10:21,610 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:10:22,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:22,721 INFO L93 Difference]: Finished difference Result 17231 states and 27458 transitions. [2020-10-14 08:10:22,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 08:10:22,722 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 158 [2020-10-14 08:10:22,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:22,789 INFO L225 Difference]: With dead ends: 17231 [2020-10-14 08:10:22,789 INFO L226 Difference]: Without dead ends: 13400 [2020-10-14 08:10:22,804 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 08:10:22,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13400 states. [2020-10-14 08:10:23,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13400 to 11690. [2020-10-14 08:10:23,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11690 states. [2020-10-14 08:10:23,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11690 states to 11690 states and 18455 transitions. [2020-10-14 08:10:23,844 INFO L78 Accepts]: Start accepts. Automaton has 11690 states and 18455 transitions. Word has length 158 [2020-10-14 08:10:23,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:10:23,845 INFO L479 AbstractCegarLoop]: Abstraction has 11690 states and 18455 transitions. [2020-10-14 08:10:23,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:10:23,846 INFO L276 IsEmpty]: Start isEmpty. Operand 11690 states and 18455 transitions. [2020-10-14 08:10:23,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-14 08:10:23,872 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:23,872 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:10:23,872 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:10:23,872 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:23,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:23,873 INFO L82 PathProgramCache]: Analyzing trace with hash -964653436, now seen corresponding path program 1 times [2020-10-14 08:10:23,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:23,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [180082878] [2020-10-14 08:10:23,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:23,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:24,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:24,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:24,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:24,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:25,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:25,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:28,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:28,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-14 08:10:28,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:10:28,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-14 08:10:28,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:28,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:28,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:28,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-14 08:10:28,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 08:10:28,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:29,324 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:10:29,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:29,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:29,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:29,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:29,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:29,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:10:29,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:29,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:29,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:29,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:29,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:29,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:29,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:29,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:29,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:29,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:10:29,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:29,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 08:10:29,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:29,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:29,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:29,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:29,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 08:10:29,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:29,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:10:29,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:29,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:29,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:29,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:29,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:29,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:29,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:29,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:29,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:29,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:29,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:10:29,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:29,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:10:29,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:29,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:29,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:29,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:29,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:29,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:10:29,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:29,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:29,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:29,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:29,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:29,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:29,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:10:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:29,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:29,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:29,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:29,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:29,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:10:29,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:29,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:29,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:29,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:29,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:29,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:29,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:10:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:29,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:29,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:29,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:29,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:29,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:10:29,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:29,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:29,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:29,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:10:29,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:10:29,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:29,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:10:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:29,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:29,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:29,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:10:29,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:29,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:10:29,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:29,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:29,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:29,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 08:10:29,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:29,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:29,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-14 08:10:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:29,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:29,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:29,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:29,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:29,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:29,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:29,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:29,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:29,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:29,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:29,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:29,698 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 08:10:29,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [180082878] [2020-10-14 08:10:29,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:29,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:10:29,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492606692] [2020-10-14 08:10:29,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:10:29,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:29,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:10:29,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:10:29,701 INFO L87 Difference]: Start difference. First operand 11690 states and 18455 transitions. Second operand 10 states. [2020-10-14 08:10:30,104 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:10:32,420 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 08:10:32,861 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 08:10:33,394 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:33,675 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:10:34,052 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 08:10:35,715 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:36,083 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 08:10:36,580 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-14 08:10:36,757 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 08:10:37,007 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-14 08:10:37,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:37,171 INFO L93 Difference]: Finished difference Result 23705 states and 37729 transitions. [2020-10-14 08:10:37,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:10:37,173 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 159 [2020-10-14 08:10:37,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:37,240 INFO L225 Difference]: With dead ends: 23705 [2020-10-14 08:10:37,240 INFO L226 Difference]: Without dead ends: 18245 [2020-10-14 08:10:37,260 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:10:37,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18245 states. [2020-10-14 08:10:38,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18245 to 15613. [2020-10-14 08:10:38,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15613 states. [2020-10-14 08:10:38,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15613 states to 15613 states and 24611 transitions. [2020-10-14 08:10:38,197 INFO L78 Accepts]: Start accepts. Automaton has 15613 states and 24611 transitions. Word has length 159 [2020-10-14 08:10:38,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:10:38,198 INFO L479 AbstractCegarLoop]: Abstraction has 15613 states and 24611 transitions. [2020-10-14 08:10:38,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:10:38,198 INFO L276 IsEmpty]: Start isEmpty. Operand 15613 states and 24611 transitions. [2020-10-14 08:10:38,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-14 08:10:38,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:38,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:10:38,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:10:38,220 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:38,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:38,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1613689068, now seen corresponding path program 1 times [2020-10-14 08:10:38,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:38,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677217890] [2020-10-14 08:10:38,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:38,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:38,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:38,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:38,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:38,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:39,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:43,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:43,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-14 08:10:43,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:10:43,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-14 08:10:43,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:43,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:43,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:10:43,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:10:43,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 08:10:43,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:43,699 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:10:43,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:43,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:43,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:43,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:43,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:43,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:10:43,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:43,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:43,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:43,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:43,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:43,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:43,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:43,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:43,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:43,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:43,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:10:43,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:43,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 08:10:43,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:43,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:43,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:10:43,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:43,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 08:10:43,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:43,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:10:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:43,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:43,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:43,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:43,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:43,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:10:43,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:43,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:43,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:43,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:43,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:10:43,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:43,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:10:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:43,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:43,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:43,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:43,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:43,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:10:43,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:43,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:43,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:43,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:43,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:43,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:44,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:10:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:44,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:44,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:44,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:44,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:44,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:10:44,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:44,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:44,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:44,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:44,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:44,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:44,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:10:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:44,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:44,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:44,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:10:44,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:44,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:10:44,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:44,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:44,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:44,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:44,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:10:44,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:44,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 08:10:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:44,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:44,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:44,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:10:44,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:44,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:10:44,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:44,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:44,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:44,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 08:10:44,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:44,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:44,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-14 08:10:44,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:44,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:44,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:44,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:44,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:44,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:44,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:44,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:44,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:44,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:44,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:44,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:44,199 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 08:10:44,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677217890] [2020-10-14 08:10:44,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:44,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:10:44,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107701225] [2020-10-14 08:10:44,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:10:44,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:44,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:10:44,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:10:44,200 INFO L87 Difference]: Start difference. First operand 15613 states and 24611 transitions. Second operand 10 states. [2020-10-14 08:10:44,626 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:10:45,065 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-14 08:10:45,688 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-10-14 08:10:46,487 WARN L193 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 258 [2020-10-14 08:10:51,815 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:10:52,254 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:10:52,495 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:52,867 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:10:53,309 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:10:54,252 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:10:54,914 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:10:55,328 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:55,776 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:10:56,508 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:10:56,726 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:10:57,183 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:58,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:58,895 INFO L93 Difference]: Finished difference Result 59665 states and 94409 transitions. [2020-10-14 08:10:58,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 08:10:58,897 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-14 08:10:58,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:59,099 INFO L225 Difference]: With dead ends: 59665 [2020-10-14 08:10:59,099 INFO L226 Difference]: Without dead ends: 44515 [2020-10-14 08:10:59,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 08:10:59,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44515 states. [2020-10-14 08:11:01,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44515 to 38894. [2020-10-14 08:11:01,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38894 states. [2020-10-14 08:11:01,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38894 states to 38894 states and 60579 transitions. [2020-10-14 08:11:01,629 INFO L78 Accepts]: Start accepts. Automaton has 38894 states and 60579 transitions. Word has length 162 [2020-10-14 08:11:01,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:11:01,629 INFO L479 AbstractCegarLoop]: Abstraction has 38894 states and 60579 transitions. [2020-10-14 08:11:01,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:11:01,629 INFO L276 IsEmpty]: Start isEmpty. Operand 38894 states and 60579 transitions. [2020-10-14 08:11:01,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-14 08:11:01,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:11:01,669 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:11:01,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:11:01,669 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:11:01,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:11:01,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1602092920, now seen corresponding path program 1 times [2020-10-14 08:11:01,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:11:01,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [333115446] [2020-10-14 08:11:01,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:11:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:01,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:01,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:01,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:01,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:02,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:05,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:05,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:05,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:06,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:06,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:06,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-14 08:11:06,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 08:11:06,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-14 08:11:06,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:06,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:06,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:11:06,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:11:06,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 08:11:06,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:07,141 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:11:07,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:11:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:07,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:07,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:07,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:11:07,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:07,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:11:07,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:07,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:07,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:07,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:07,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:07,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:07,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:11:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:07,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:07,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:07,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:11:07,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:07,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 08:11:07,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:07,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:07,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:11:07,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:07,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 08:11:07,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:07,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:11:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:07,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:07,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:07,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:11:07,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:07,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:11:07,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:07,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:07,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:07,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:07,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:11:07,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:07,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:11:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:07,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:07,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:07,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:07,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:07,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:11:07,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:07,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:07,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:07,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:07,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:07,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:07,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:11:07,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:07,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:07,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:07,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:07,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:07,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:11:07,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:07,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:07,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:07,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:07,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:07,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:07,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:11:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:07,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:07,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:07,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:11:07,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:07,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:11:07,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:07,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:07,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:07,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:11:07,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:11:07,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:07,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-14 08:11:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:07,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:07,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:07,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:11:07,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:07,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:11:07,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:07,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:07,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:07,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 08:11:07,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:07,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:07,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-14 08:11:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:07,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:07,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:07,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:11:07,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:07,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:11:07,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:07,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:07,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:07,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:11:07,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:07,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:07,634 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 08:11:07,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [333115446] [2020-10-14 08:11:07,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:11:07,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:11:07,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937586557] [2020-10-14 08:11:07,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:11:07,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:11:07,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:11:07,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:11:07,637 INFO L87 Difference]: Start difference. First operand 38894 states and 60579 transitions. Second operand 10 states. [2020-10-14 08:11:08,039 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:11:08,668 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-14 08:11:09,115 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-10-14 08:11:09,869 WARN L193 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 258 [2020-10-14 08:11:17,633 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:11:18,496 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:19,205 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:19,552 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:20,032 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:20,542 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:21,048 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:21,514 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:21,964 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:22,672 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:22,921 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:23,302 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:26,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:11:26,390 INFO L93 Difference]: Finished difference Result 155683 states and 243399 transitions. [2020-10-14 08:11:26,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 08:11:26,392 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-10-14 08:11:26,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:11:26,789 INFO L225 Difference]: With dead ends: 155683 [2020-10-14 08:11:26,790 INFO L226 Difference]: Without dead ends: 118251 [2020-10-14 08:11:26,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 08:11:27,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118251 states. [2020-10-14 08:11:35,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118251 to 104017. [2020-10-14 08:11:35,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104017 states. [2020-10-14 08:11:35,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104017 states to 104017 states and 160508 transitions. [2020-10-14 08:11:35,225 INFO L78 Accepts]: Start accepts. Automaton has 104017 states and 160508 transitions. Word has length 163 [2020-10-14 08:11:35,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:11:35,226 INFO L479 AbstractCegarLoop]: Abstraction has 104017 states and 160508 transitions. [2020-10-14 08:11:35,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:11:35,226 INFO L276 IsEmpty]: Start isEmpty. Operand 104017 states and 160508 transitions. [2020-10-14 08:11:35,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-14 08:11:35,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:11:35,325 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:11:35,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:11:35,326 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:11:35,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:11:35,326 INFO L82 PathProgramCache]: Analyzing trace with hash 717490329, now seen corresponding path program 1 times [2020-10-14 08:11:35,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:11:35,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1787303437] [2020-10-14 08:11:35,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:11:35,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:35,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:35,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:35,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:35,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:36,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:37,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:38,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:40,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:40,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:40,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-14 08:11:40,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:11:40,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 08:11:40,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:40,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:40,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:11:40,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:11:40,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 08:11:40,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:40,766 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:11:40,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:11:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:40,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:40,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:40,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:11:40,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:40,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:11:40,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:40,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:40,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:40,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:40,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:40,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:40,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:11:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:40,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:40,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:40,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:11:40,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:40,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 08:11:40,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:40,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:40,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:11:40,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:40,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 08:11:40,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:40,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:11:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:40,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:40,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:40,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:11:40,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:40,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:11:40,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:40,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:40,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:40,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:40,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:11:40,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:40,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:11:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:40,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:40,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:40,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:40,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:40,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:11:40,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:40,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:40,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:40,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:40,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:40,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:41,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:11:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:41,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:41,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:41,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:41,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:41,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:11:41,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:41,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:41,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:41,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:41,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:41,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:41,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:11:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:41,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:41,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:41,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:11:41,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:41,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:11:41,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:41,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:41,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:41,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:11:41,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:11:41,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:41,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 08:11:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:41,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:41,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:41,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:11:41,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:41,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:11:41,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:41,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:41,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:41,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 08:11:41,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:41,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:41,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-14 08:11:41,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:41,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:41,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:41,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:11:41,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:41,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:11:41,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:41,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:41,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:41,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:11:41,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:41,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:41,188 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 08:11:41,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1787303437] [2020-10-14 08:11:41,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:11:41,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:11:41,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630316484] [2020-10-14 08:11:41,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:11:41,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:11:41,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:11:41,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:11:41,190 INFO L87 Difference]: Start difference. First operand 104017 states and 160508 transitions. Second operand 10 states. [2020-10-14 08:11:41,596 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:11:41,969 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-14 08:11:42,594 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-14 08:11:42,983 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:11:53,687 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:11:54,074 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:54,400 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:55,067 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:55,514 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:56,379 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:56,798 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:57,860 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:58,085 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:04,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:12:04,199 INFO L93 Difference]: Finished difference Result 331332 states and 513352 transitions. [2020-10-14 08:12:04,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 08:12:04,200 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 164 [2020-10-14 08:12:04,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:12:04,975 INFO L225 Difference]: With dead ends: 331332 [2020-10-14 08:12:04,975 INFO L226 Difference]: Without dead ends: 230990 [2020-10-14 08:12:05,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:12:05,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230990 states. [2020-10-14 08:12:18,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230990 to 204987. [2020-10-14 08:12:18,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204987 states. [2020-10-14 08:12:19,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204987 states to 204987 states and 311160 transitions. [2020-10-14 08:12:19,064 INFO L78 Accepts]: Start accepts. Automaton has 204987 states and 311160 transitions. Word has length 164 [2020-10-14 08:12:19,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:12:19,064 INFO L479 AbstractCegarLoop]: Abstraction has 204987 states and 311160 transitions. [2020-10-14 08:12:19,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:12:19,064 INFO L276 IsEmpty]: Start isEmpty. Operand 204987 states and 311160 transitions. [2020-10-14 08:12:19,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-14 08:12:19,871 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:12:19,871 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:12:19,872 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:12:19,872 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:12:19,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:12:19,872 INFO L82 PathProgramCache]: Analyzing trace with hash 2073108589, now seen corresponding path program 1 times [2020-10-14 08:12:19,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:12:19,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1847556361] [2020-10-14 08:12:19,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:12:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:19,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:20,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:20,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:20,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:20,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:21,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:21,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:21,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:26,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:26,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-14 08:12:26,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:12:26,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6349 [2020-10-14 08:12:26,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:26,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:26,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:12:26,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-14 08:12:26,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 08:12:26,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:26,657 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:12:26,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:12:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:26,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:26,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:26,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:12:26,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:26,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:12:26,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:26,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:26,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:26,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:26,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:26,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:26,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:12:26,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:26,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:26,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:26,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:12:26,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:26,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 08:12:26,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:26,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:26,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:26,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:26,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 08:12:26,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:26,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:12:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:26,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:26,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:26,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:12:26,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:26,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:12:26,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:26,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:26,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:26,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:26,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:12:26,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:26,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:12:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:26,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:26,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:26,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:26,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:26,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:12:26,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:26,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:26,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:26,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:26,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:26,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:26,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:12:26,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:26,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:26,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:26,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:26,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:26,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:12:26,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:26,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:26,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:12:26,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:12:26,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:12:26,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:26,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:12:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:26,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:26,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:26,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:12:26,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:26,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:12:26,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:26,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:26,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:26,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 08:12:26,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:26,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:27,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-14 08:12:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:27,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:27,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:27,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:12:27,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:27,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:12:27,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:27,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:27,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:27,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 08:12:27,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:27,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:27,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-14 08:12:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:27,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:27,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:27,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:12:27,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:27,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:12:27,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:27,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:27,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:27,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:12:27,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:27,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:27,045 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 08:12:27,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1847556361] [2020-10-14 08:12:27,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:12:27,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:12:27,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720226119] [2020-10-14 08:12:27,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:12:27,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:12:27,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:12:27,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:12:27,047 INFO L87 Difference]: Start difference. First operand 204987 states and 311160 transitions. Second operand 10 states. [2020-10-14 08:12:27,492 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 254