/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 03:27:00,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 03:27:00,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 03:27:00,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 03:27:00,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 03:27:00,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 03:27:00,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 03:27:00,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 03:27:00,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 03:27:00,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 03:27:00,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 03:27:00,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 03:27:00,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 03:27:00,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 03:27:00,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 03:27:00,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 03:27:00,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 03:27:00,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 03:27:00,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 03:27:00,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 03:27:00,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 03:27:00,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 03:27:00,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 03:27:00,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 03:27:00,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 03:27:00,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 03:27:00,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 03:27:00,572 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 03:27:00,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 03:27:00,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 03:27:00,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 03:27:00,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 03:27:00,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 03:27:00,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 03:27:00,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 03:27:00,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 03:27:00,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 03:27:00,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 03:27:00,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 03:27:00,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 03:27:00,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 03:27:00,579 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 03:27:00,601 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 03:27:00,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 03:27:00,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 03:27:00,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 03:27:00,603 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 03:27:00,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 03:27:00,604 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 03:27:00,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 03:27:00,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 03:27:00,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 03:27:00,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 03:27:00,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 03:27:00,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 03:27:00,605 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 03:27:00,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 03:27:00,605 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 03:27:00,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 03:27:00,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 03:27:00,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 03:27:00,606 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 03:27:00,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 03:27:00,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:27:00,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 03:27:00,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 03:27:00,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 03:27:00,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 03:27:00,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 03:27:00,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 03:27:00,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 03:27:00,608 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 03:27:00,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 03:27:00,905 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 03:27:00,909 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 03:27:00,910 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 03:27:00,911 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 03:27:00,911 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-15 03:27:00,982 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da0370d29/be2fa28909164f02a30b257b17c62a20/FLAGf85166125 [2020-10-15 03:27:01,689 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 03:27:01,690 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-15 03:27:01,718 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da0370d29/be2fa28909164f02a30b257b17c62a20/FLAGf85166125 [2020-10-15 03:27:01,839 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da0370d29/be2fa28909164f02a30b257b17c62a20 [2020-10-15 03:27:01,848 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 03:27:01,850 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 03:27:01,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 03:27:01,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 03:27:01,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 03:27:01,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:27:01" (1/1) ... [2020-10-15 03:27:01,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a6f08d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:27:01, skipping insertion in model container [2020-10-15 03:27:01,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:27:01" (1/1) ... [2020-10-15 03:27:01,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 03:27:02,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 03:27:03,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:27:03,142 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 03:27:03,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:27:03,519 INFO L208 MainTranslator]: Completed translation [2020-10-15 03:27:03,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:27:03 WrapperNode [2020-10-15 03:27:03,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 03:27:03,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 03:27:03,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 03:27:03,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 03:27:03,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:27:03" (1/1) ... [2020-10-15 03:27:03,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:27:03" (1/1) ... [2020-10-15 03:27:03,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:27:03" (1/1) ... [2020-10-15 03:27:03,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:27:03" (1/1) ... [2020-10-15 03:27:03,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:27:03" (1/1) ... [2020-10-15 03:27:03,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:27:03" (1/1) ... [2020-10-15 03:27:03,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:27:03" (1/1) ... [2020-10-15 03:27:03,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 03:27:03,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 03:27:03,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 03:27:03,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 03:27:03,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:27:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:27:03,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 03:27:03,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 03:27:03,813 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 03:27:03,814 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 03:27:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 03:27:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 03:27:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 03:27:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 03:27:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 03:27:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 03:27:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 03:27:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 03:27:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 03:27:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 03:27:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 03:27:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 03:27:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 03:27:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-15 03:27:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 03:27:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 03:27:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 03:27:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 03:27:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 03:27:07,488 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 03:27:07,490 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 03:27:07,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:27:07 BoogieIcfgContainer [2020-10-15 03:27:07,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 03:27:07,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 03:27:07,511 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 03:27:07,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 03:27:07,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:27:01" (1/3) ... [2020-10-15 03:27:07,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@438f1bb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:27:07, skipping insertion in model container [2020-10-15 03:27:07,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:27:03" (2/3) ... [2020-10-15 03:27:07,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@438f1bb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:27:07, skipping insertion in model container [2020-10-15 03:27:07,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:27:07" (3/3) ... [2020-10-15 03:27:07,520 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-15 03:27:07,535 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 03:27:07,552 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-10-15 03:27:07,570 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-10-15 03:27:07,618 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 03:27:07,618 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 03:27:07,618 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 03:27:07,618 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 03:27:07,619 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 03:27:07,620 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 03:27:07,620 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 03:27:07,620 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 03:27:07,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states. [2020-10-15 03:27:07,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-15 03:27:07,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:27:07,721 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] [2020-10-15 03:27:07,727 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:27:07,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:27:07,735 INFO L82 PathProgramCache]: Analyzing trace with hash 10263618, now seen corresponding path program 1 times [2020-10-15 03:27:07,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:27:07,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540225454] [2020-10-15 03:27:07,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:27:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:08,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:08,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:08,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:09,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:09,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:09,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:10,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:11,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:12,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:13,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:13,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 03:27:13,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:27:13,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 03:27:13,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:13,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:13,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:27:13,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:27:13,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-15 03:27:13,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-15 03:27:13,959 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:27:13,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:27:13,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:13,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:14,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:14,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:27:14,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:27:14,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-15 03:27:14,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:14,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:14,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:27:14,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:27:14,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:27:14,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:27:14,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:27:14,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1540225454] [2020-10-15 03:27:14,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:27:14,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:27:14,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066419987] [2020-10-15 03:27:14,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:27:14,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:27:14,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:27:14,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:27:14,183 INFO L87 Difference]: Start difference. First operand 1116 states. Second operand 6 states. [2020-10-15 03:27:15,013 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-15 03:27:20,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:27:20,623 INFO L93 Difference]: Finished difference Result 1265 states and 2224 transitions. [2020-10-15 03:27:20,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:27:20,628 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2020-10-15 03:27:20,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:27:20,649 INFO L225 Difference]: With dead ends: 1265 [2020-10-15 03:27:20,649 INFO L226 Difference]: Without dead ends: 704 [2020-10-15 03:27:20,657 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:27:20,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2020-10-15 03:27:20,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 704. [2020-10-15 03:27:20,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 704 states. [2020-10-15 03:27:20,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 889 transitions. [2020-10-15 03:27:20,750 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 889 transitions. Word has length 76 [2020-10-15 03:27:20,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:27:20,750 INFO L479 AbstractCegarLoop]: Abstraction has 704 states and 889 transitions. [2020-10-15 03:27:20,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:27:20,751 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 889 transitions. [2020-10-15 03:27:20,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-15 03:27:20,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:27:20,755 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] [2020-10-15 03:27:20,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 03:27:20,756 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:27:20,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:27:20,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1790375845, now seen corresponding path program 1 times [2020-10-15 03:27:20,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:27:20,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2041102707] [2020-10-15 03:27:20,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:27:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:20,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:20,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:20,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:21,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:21,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:22,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:25,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:25,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 03:27:25,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 03:27:25,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 03:27:25,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:25,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:25,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:27:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:27:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-15 03:27:25,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-15 03:27:26,772 WARN L193 SmtUtils]: Spent 833.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:27:26,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:27:26,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:26,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:26,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:26,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:27:26,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:27:26,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-15 03:27:26,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:26,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:26,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:27:26,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:27:26,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:27:26,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:27:26,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:27:26,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2041102707] [2020-10-15 03:27:26,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:27:26,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:27:26,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685779885] [2020-10-15 03:27:26,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:27:26,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:27:26,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:27:26,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:27:26,918 INFO L87 Difference]: Start difference. First operand 704 states and 889 transitions. Second operand 6 states. [2020-10-15 03:27:27,883 WARN L193 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-15 03:27:31,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:27:31,457 INFO L93 Difference]: Finished difference Result 977 states and 1250 transitions. [2020-10-15 03:27:31,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:27:31,458 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2020-10-15 03:27:31,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:27:31,463 INFO L225 Difference]: With dead ends: 977 [2020-10-15 03:27:31,463 INFO L226 Difference]: Without dead ends: 640 [2020-10-15 03:27:31,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:27:31,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2020-10-15 03:27:31,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 640. [2020-10-15 03:27:31,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 640 states. [2020-10-15 03:27:31,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 816 transitions. [2020-10-15 03:27:31,495 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 816 transitions. Word has length 76 [2020-10-15 03:27:31,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:27:31,495 INFO L479 AbstractCegarLoop]: Abstraction has 640 states and 816 transitions. [2020-10-15 03:27:31,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:27:31,496 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 816 transitions. [2020-10-15 03:27:31,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-15 03:27:31,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:27:31,498 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] [2020-10-15 03:27:31,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 03:27:31,498 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:27:31,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:27:31,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1008231127, now seen corresponding path program 1 times [2020-10-15 03:27:31,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:27:31,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [900678164] [2020-10-15 03:27:31,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:27:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:31,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:31,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:31,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:31,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:31,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:35,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:35,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:35,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:36,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:36,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:36,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 03:27:36,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:27:36,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-15 03:27:36,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:36,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:36,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:27:36,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:27:36,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 03:27:36,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:27:37,264 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:27:37,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:27:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:37,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:37,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:37,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:27:37,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:27:37,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-15 03:27:37,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:37,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:37,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:27:37,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:27:37,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:27:37,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:27:37,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:27:37,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [900678164] [2020-10-15 03:27:37,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:27:37,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:27:37,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662602602] [2020-10-15 03:27:37,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:27:37,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:27:37,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:27:37,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:27:37,347 INFO L87 Difference]: Start difference. First operand 640 states and 816 transitions. Second operand 6 states. [2020-10-15 03:27:38,086 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-15 03:27:40,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:27:40,744 INFO L93 Difference]: Finished difference Result 817 states and 1044 transitions. [2020-10-15 03:27:40,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:27:40,745 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2020-10-15 03:27:40,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:27:40,751 INFO L225 Difference]: With dead ends: 817 [2020-10-15 03:27:40,752 INFO L226 Difference]: Without dead ends: 488 [2020-10-15 03:27:40,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:27:40,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2020-10-15 03:27:40,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2020-10-15 03:27:40,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2020-10-15 03:27:40,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 623 transitions. [2020-10-15 03:27:40,784 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 623 transitions. Word has length 76 [2020-10-15 03:27:40,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:27:40,786 INFO L479 AbstractCegarLoop]: Abstraction has 488 states and 623 transitions. [2020-10-15 03:27:40,786 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:27:40,786 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 623 transitions. [2020-10-15 03:27:40,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-15 03:27:40,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:27:40,790 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] [2020-10-15 03:27:40,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 03:27:40,791 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:27:40,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:27:40,792 INFO L82 PathProgramCache]: Analyzing trace with hash -800880688, now seen corresponding path program 1 times [2020-10-15 03:27:40,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:27:40,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [535236243] [2020-10-15 03:27:40,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:27:40,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:40,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:40,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:40,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:41,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:41,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:41,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:43,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:43,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:43,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:45,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:45,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-15 03:27:45,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:27:45,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:27:45,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:45,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:45,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:27:45,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 03:27:45,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 03:27:45,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:27:46,730 WARN L193 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:27:46,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:27:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:46,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:46,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:46,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:27:46,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:27:46,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 03:27:46,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:46,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:46,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:27:46,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:27:46,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:27:46,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:27:46,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:27:46,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [535236243] [2020-10-15 03:27:46,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:27:46,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:27:46,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133752234] [2020-10-15 03:27:46,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:27:46,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:27:46,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:27:46,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:27:46,787 INFO L87 Difference]: Start difference. First operand 488 states and 623 transitions. Second operand 6 states. [2020-10-15 03:27:47,470 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 302 [2020-10-15 03:27:52,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:27:52,217 INFO L93 Difference]: Finished difference Result 1390 states and 1840 transitions. [2020-10-15 03:27:52,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 03:27:52,218 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2020-10-15 03:27:52,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:27:52,225 INFO L225 Difference]: With dead ends: 1390 [2020-10-15 03:27:52,225 INFO L226 Difference]: Without dead ends: 1287 [2020-10-15 03:27:52,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-15 03:27:52,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2020-10-15 03:27:52,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 940. [2020-10-15 03:27:52,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2020-10-15 03:27:52,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1294 transitions. [2020-10-15 03:27:52,276 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1294 transitions. Word has length 77 [2020-10-15 03:27:52,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:27:52,277 INFO L479 AbstractCegarLoop]: Abstraction has 940 states and 1294 transitions. [2020-10-15 03:27:52,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:27:52,277 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1294 transitions. [2020-10-15 03:27:52,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-15 03:27:52,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:27:52,279 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] [2020-10-15 03:27:52,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 03:27:52,280 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:27:52,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:27:52,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1739984460, now seen corresponding path program 1 times [2020-10-15 03:27:52,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:27:52,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [761751901] [2020-10-15 03:27:52,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:27:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:52,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:52,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:52,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:52,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:52,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:54,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:54,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:57,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:57,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-15 03:27:57,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 03:27:57,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:27:57,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:57,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:27:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:27:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 03:27:57,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:27:58,073 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:27:58,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:27:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:58,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:58,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:58,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:27:58,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:27:58,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 03:27:58,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:58,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:58,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:27:58,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:27:58,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:27:58,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:27:58,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:27:58,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [761751901] [2020-10-15 03:27:58,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:27:58,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:27:58,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830330952] [2020-10-15 03:27:58,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:27:58,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:27:58,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:27:58,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:27:58,128 INFO L87 Difference]: Start difference. First operand 940 states and 1294 transitions. Second operand 7 states. [2020-10-15 03:27:58,812 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2020-10-15 03:28:02,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:28:02,919 INFO L93 Difference]: Finished difference Result 1831 states and 2534 transitions. [2020-10-15 03:28:02,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:28:02,920 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2020-10-15 03:28:02,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:28:02,931 INFO L225 Difference]: With dead ends: 1831 [2020-10-15 03:28:02,931 INFO L226 Difference]: Without dead ends: 1660 [2020-10-15 03:28:02,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:28:02,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2020-10-15 03:28:02,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 940. [2020-10-15 03:28:02,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2020-10-15 03:28:02,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1293 transitions. [2020-10-15 03:28:02,992 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1293 transitions. Word has length 77 [2020-10-15 03:28:02,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:28:02,993 INFO L479 AbstractCegarLoop]: Abstraction has 940 states and 1293 transitions. [2020-10-15 03:28:02,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:28:02,993 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1293 transitions. [2020-10-15 03:28:02,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 03:28:02,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:28:02,995 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] [2020-10-15 03:28:02,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 03:28:02,996 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:28:02,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:28:02,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1489732733, now seen corresponding path program 1 times [2020-10-15 03:28:02,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:28:02,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1415543720] [2020-10-15 03:28:02,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:28:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:03,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:03,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:03,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:03,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:03,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:03,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:03,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:04,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:08,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:08,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 03:28:08,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:28:08,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 03:28:08,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:08,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:08,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:28:08,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:28:08,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 03:28:08,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:08,740 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:28:08,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:28:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:08,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:08,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:08,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:28:08,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:28:08,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 03:28:08,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:08,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:08,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:28:08,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:28:08,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:28:08,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:08,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:28:08,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1415543720] [2020-10-15 03:28:08,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:28:08,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:28:08,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507473316] [2020-10-15 03:28:08,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:28:08,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:28:08,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:28:08,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:28:08,788 INFO L87 Difference]: Start difference. First operand 940 states and 1293 transitions. Second operand 7 states. [2020-10-15 03:28:09,502 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2020-10-15 03:28:12,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:28:12,982 INFO L93 Difference]: Finished difference Result 1915 states and 2616 transitions. [2020-10-15 03:28:12,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:28:12,983 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2020-10-15 03:28:12,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:28:12,990 INFO L225 Difference]: With dead ends: 1915 [2020-10-15 03:28:12,990 INFO L226 Difference]: Without dead ends: 1708 [2020-10-15 03:28:12,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:28:12,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1708 states. [2020-10-15 03:28:13,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1708 to 940. [2020-10-15 03:28:13,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2020-10-15 03:28:13,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1292 transitions. [2020-10-15 03:28:13,046 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1292 transitions. Word has length 78 [2020-10-15 03:28:13,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:28:13,046 INFO L479 AbstractCegarLoop]: Abstraction has 940 states and 1292 transitions. [2020-10-15 03:28:13,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:28:13,047 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1292 transitions. [2020-10-15 03:28:13,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 03:28:13,048 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:28:13,049 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] [2020-10-15 03:28:13,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 03:28:13,049 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:28:13,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:28:13,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1913541664, now seen corresponding path program 1 times [2020-10-15 03:28:13,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:28:13,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [816223813] [2020-10-15 03:28:13,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:28:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:13,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:13,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:13,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:13,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:13,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:13,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:13,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:14,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:14,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:16,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:18,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:18,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 03:28:18,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:28:18,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 03:28:18,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:18,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:18,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:28:18,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:28:18,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 03:28:18,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:18,884 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:28:18,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:28:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:18,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:18,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:18,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:28:18,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:28:18,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 03:28:18,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:18,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:18,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:28:18,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:28:18,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:28:18,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:18,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:28:18,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [816223813] [2020-10-15 03:28:18,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:28:18,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:28:18,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863113152] [2020-10-15 03:28:18,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:28:18,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:28:18,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:28:18,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:28:18,940 INFO L87 Difference]: Start difference. First operand 940 states and 1292 transitions. Second operand 8 states. [2020-10-15 03:28:19,707 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:28:23,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:28:23,791 INFO L93 Difference]: Finished difference Result 2719 states and 3886 transitions. [2020-10-15 03:28:23,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:28:23,792 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2020-10-15 03:28:23,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:28:23,802 INFO L225 Difference]: With dead ends: 2719 [2020-10-15 03:28:23,802 INFO L226 Difference]: Without dead ends: 2414 [2020-10-15 03:28:23,804 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:28:23,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2020-10-15 03:28:23,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 1754. [2020-10-15 03:28:23,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1754 states. [2020-10-15 03:28:23,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 2507 transitions. [2020-10-15 03:28:23,935 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 2507 transitions. Word has length 78 [2020-10-15 03:28:23,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:28:23,935 INFO L479 AbstractCegarLoop]: Abstraction has 1754 states and 2507 transitions. [2020-10-15 03:28:23,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:28:23,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 2507 transitions. [2020-10-15 03:28:23,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 03:28:23,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:28:23,938 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] [2020-10-15 03:28:23,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 03:28:23,939 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:28:23,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:28:23,939 INFO L82 PathProgramCache]: Analyzing trace with hash 209359211, now seen corresponding path program 1 times [2020-10-15 03:28:23,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:28:23,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2108920568] [2020-10-15 03:28:23,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:28:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:23,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:24,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:24,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:24,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:24,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:25,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:25,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:28,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:28,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 03:28:28,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 03:28:28,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 03:28:28,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:28,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:28,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:28:28,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 03:28:28,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 03:28:28,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:29,645 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:28:29,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:28:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:29,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:29,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:29,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:28:29,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:28:29,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 03:28:29,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:29,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:29,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:28:29,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:28:29,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:28:29,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:29,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:28:29,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2108920568] [2020-10-15 03:28:29,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:28:29,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:28:29,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625125653] [2020-10-15 03:28:29,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:28:29,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:28:29,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:28:29,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:28:29,684 INFO L87 Difference]: Start difference. First operand 1754 states and 2507 transitions. Second operand 6 states. [2020-10-15 03:28:30,365 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 302 [2020-10-15 03:28:35,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:28:35,250 INFO L93 Difference]: Finished difference Result 2418 states and 3396 transitions. [2020-10-15 03:28:35,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 03:28:35,250 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2020-10-15 03:28:35,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:28:35,258 INFO L225 Difference]: With dead ends: 2418 [2020-10-15 03:28:35,258 INFO L226 Difference]: Without dead ends: 2104 [2020-10-15 03:28:35,259 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-15 03:28:35,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2104 states. [2020-10-15 03:28:35,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2104 to 1702. [2020-10-15 03:28:35,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1702 states. [2020-10-15 03:28:35,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1702 states to 1702 states and 2431 transitions. [2020-10-15 03:28:35,369 INFO L78 Accepts]: Start accepts. Automaton has 1702 states and 2431 transitions. Word has length 78 [2020-10-15 03:28:35,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:28:35,369 INFO L479 AbstractCegarLoop]: Abstraction has 1702 states and 2431 transitions. [2020-10-15 03:28:35,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:28:35,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1702 states and 2431 transitions. [2020-10-15 03:28:35,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 03:28:35,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:28:35,372 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] [2020-10-15 03:28:35,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 03:28:35,373 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:28:35,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:28:35,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1614015587, now seen corresponding path program 1 times [2020-10-15 03:28:35,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:28:35,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730604163] [2020-10-15 03:28:35,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:28:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:35,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:35,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:35,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:35,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:35,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:36,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:36,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:38,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:40,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:40,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 03:28:40,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:28:40,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 03:28:40,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:40,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:40,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:28:40,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:28:40,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 03:28:40,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:41,106 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:28:41,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:28:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:41,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:41,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:41,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:28:41,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:28:41,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 03:28:41,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:41,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:41,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:28:41,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:28:41,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:28:41,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:41,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:28:41,147 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730604163] [2020-10-15 03:28:41,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:28:41,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:28:41,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426534299] [2020-10-15 03:28:41,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:28:41,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:28:41,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:28:41,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:28:41,148 INFO L87 Difference]: Start difference. First operand 1702 states and 2431 transitions. Second operand 7 states. [2020-10-15 03:28:41,929 WARN L193 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2020-10-15 03:28:45,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:28:45,506 INFO L93 Difference]: Finished difference Result 4903 states and 7118 transitions. [2020-10-15 03:28:45,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:28:45,506 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2020-10-15 03:28:45,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:28:45,520 INFO L225 Difference]: With dead ends: 4903 [2020-10-15 03:28:45,520 INFO L226 Difference]: Without dead ends: 4051 [2020-10-15 03:28:45,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:28:45,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4051 states. [2020-10-15 03:28:45,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4051 to 1702. [2020-10-15 03:28:45,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1702 states. [2020-10-15 03:28:45,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1702 states to 1702 states and 2430 transitions. [2020-10-15 03:28:45,660 INFO L78 Accepts]: Start accepts. Automaton has 1702 states and 2430 transitions. Word has length 78 [2020-10-15 03:28:45,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:28:45,661 INFO L479 AbstractCegarLoop]: Abstraction has 1702 states and 2430 transitions. [2020-10-15 03:28:45,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:28:45,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1702 states and 2430 transitions. [2020-10-15 03:28:45,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 03:28:45,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:28:45,664 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] [2020-10-15 03:28:45,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 03:28:45,664 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:28:45,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:28:45,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1474405683, now seen corresponding path program 1 times [2020-10-15 03:28:45,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:28:45,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997788165] [2020-10-15 03:28:45,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:28:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:45,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:45,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:46,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:46,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:46,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:46,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:46,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:47,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:47,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:47,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:47,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:47,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:47,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:48,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:48,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:50,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:50,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:50,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 03:28:50,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 03:28:50,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 03:28:50,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:50,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:50,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:28:50,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:28:50,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-15 03:28:50,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:28:51,424 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:28:51,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:28:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:51,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:51,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:51,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:28:51,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:28:51,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 03:28:51,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:51,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:51,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:28:51,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:28:51,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:28:51,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:51,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:28:51,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1997788165] [2020-10-15 03:28:51,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:28:51,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:28:51,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223191424] [2020-10-15 03:28:51,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:28:51,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:28:51,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:28:51,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:28:51,471 INFO L87 Difference]: Start difference. First operand 1702 states and 2430 transitions. Second operand 8 states. [2020-10-15 03:28:52,196 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 308 [2020-10-15 03:28:55,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:28:55,595 INFO L93 Difference]: Finished difference Result 4763 states and 6952 transitions. [2020-10-15 03:28:55,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:28:55,595 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2020-10-15 03:28:55,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:28:55,608 INFO L225 Difference]: With dead ends: 4763 [2020-10-15 03:28:55,608 INFO L226 Difference]: Without dead ends: 3929 [2020-10-15 03:28:55,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-15 03:28:55,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3929 states. [2020-10-15 03:28:55,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3929 to 1647. [2020-10-15 03:28:55,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1647 states. [2020-10-15 03:28:55,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1647 states to 1647 states and 2351 transitions. [2020-10-15 03:28:55,747 INFO L78 Accepts]: Start accepts. Automaton has 1647 states and 2351 transitions. Word has length 78 [2020-10-15 03:28:55,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:28:55,748 INFO L479 AbstractCegarLoop]: Abstraction has 1647 states and 2351 transitions. [2020-10-15 03:28:55,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:28:55,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1647 states and 2351 transitions. [2020-10-15 03:28:55,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 03:28:55,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:28:55,754 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] [2020-10-15 03:28:55,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 03:28:55,754 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:28:55,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:28:55,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1876752047, now seen corresponding path program 1 times [2020-10-15 03:28:55,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:28:55,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543326562] [2020-10-15 03:28:55,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:28:55,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:55,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:55,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:55,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:56,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:56,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:57,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:58,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:00,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:00,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 03:29:00,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 03:29:00,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 03:29:00,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:00,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:00,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:29:00,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:29:00,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 03:29:00,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:01,512 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:29:01,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:29:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:01,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:01,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:01,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:29:01,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:29:01,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 03:29:01,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:01,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:01,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:29:01,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:29:01,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:29:01,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:01,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:29:01,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543326562] [2020-10-15 03:29:01,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:29:01,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:29:01,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412489303] [2020-10-15 03:29:01,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:29:01,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:29:01,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:29:01,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:29:01,567 INFO L87 Difference]: Start difference. First operand 1647 states and 2351 transitions. Second operand 9 states. [2020-10-15 03:29:02,273 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2020-10-15 03:29:05,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:29:05,794 INFO L93 Difference]: Finished difference Result 4853 states and 7203 transitions. [2020-10-15 03:29:05,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:29:05,795 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-10-15 03:29:05,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:29:05,813 INFO L225 Difference]: With dead ends: 4853 [2020-10-15 03:29:05,813 INFO L226 Difference]: Without dead ends: 4044 [2020-10-15 03:29:05,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:29:05,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4044 states. [2020-10-15 03:29:05,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4044 to 1577. [2020-10-15 03:29:05,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1577 states. [2020-10-15 03:29:05,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 2233 transitions. [2020-10-15 03:29:05,983 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 2233 transitions. Word has length 79 [2020-10-15 03:29:05,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:29:05,984 INFO L479 AbstractCegarLoop]: Abstraction has 1577 states and 2233 transitions. [2020-10-15 03:29:05,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:29:05,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 2233 transitions. [2020-10-15 03:29:05,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 03:29:05,987 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:29:05,987 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] [2020-10-15 03:29:05,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 03:29:05,987 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:29:05,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:29:05,988 INFO L82 PathProgramCache]: Analyzing trace with hash 635675827, now seen corresponding path program 1 times [2020-10-15 03:29:05,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:29:05,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1309891950] [2020-10-15 03:29:05,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:29:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:06,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:06,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:06,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:06,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:06,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:06,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:06,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:07,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:07,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:07,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:07,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:07,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:08,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:09,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:10,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:10,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:11,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:11,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:11,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 03:29:11,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-15 03:29:11,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 03:29:11,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:11,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:11,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:29:11,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:29:11,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-15 03:29:11,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:11,769 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:29:11,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:29:11,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:11,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:11,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:11,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:29:11,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:29:11,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:29:11,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:11,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:11,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:29:11,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:29:11,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:29:11,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:11,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:29:11,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1309891950] [2020-10-15 03:29:11,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:29:11,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:29:11,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515432673] [2020-10-15 03:29:11,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:29:11,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:29:11,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:29:11,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:29:11,823 INFO L87 Difference]: Start difference. First operand 1577 states and 2233 transitions. Second operand 8 states. [2020-10-15 03:29:12,543 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 308 [2020-10-15 03:29:14,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:29:14,846 INFO L93 Difference]: Finished difference Result 4050 states and 5891 transitions. [2020-10-15 03:29:14,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:29:14,847 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-10-15 03:29:14,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:29:14,860 INFO L225 Difference]: With dead ends: 4050 [2020-10-15 03:29:14,860 INFO L226 Difference]: Without dead ends: 3385 [2020-10-15 03:29:14,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-15 03:29:14,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3385 states. [2020-10-15 03:29:15,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3385 to 1408. [2020-10-15 03:29:15,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1408 states. [2020-10-15 03:29:15,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1998 transitions. [2020-10-15 03:29:15,003 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1998 transitions. Word has length 79 [2020-10-15 03:29:15,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:29:15,003 INFO L479 AbstractCegarLoop]: Abstraction has 1408 states and 1998 transitions. [2020-10-15 03:29:15,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:29:15,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1998 transitions. [2020-10-15 03:29:15,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 03:29:15,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:29:15,006 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] [2020-10-15 03:29:15,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 03:29:15,006 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:29:15,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:29:15,007 INFO L82 PathProgramCache]: Analyzing trace with hash -993014694, now seen corresponding path program 1 times [2020-10-15 03:29:15,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:29:15,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1057179739] [2020-10-15 03:29:15,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:29:15,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:15,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:15,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:15,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:15,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:15,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:16,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:20,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:20,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 03:29:20,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 03:29:20,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 03:29:20,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:20,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:20,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:29:20,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:29:20,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-15 03:29:20,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:20,798 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:29:20,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:29:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:20,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:20,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:20,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:29:20,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:29:20,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 03:29:20,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:20,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:20,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:29:20,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:29:20,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:29:20,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:20,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:29:20,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1057179739] [2020-10-15 03:29:20,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:29:20,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:29:20,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689979553] [2020-10-15 03:29:20,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:29:20,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:29:20,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:29:20,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:29:20,838 INFO L87 Difference]: Start difference. First operand 1408 states and 1998 transitions. Second operand 8 states. [2020-10-15 03:29:21,602 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:29:24,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:29:24,513 INFO L93 Difference]: Finished difference Result 3416 states and 4981 transitions. [2020-10-15 03:29:24,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:29:24,514 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-10-15 03:29:24,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:29:24,521 INFO L225 Difference]: With dead ends: 3416 [2020-10-15 03:29:24,522 INFO L226 Difference]: Without dead ends: 3411 [2020-10-15 03:29:24,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:29:24,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3411 states. [2020-10-15 03:29:24,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3411 to 1408. [2020-10-15 03:29:24,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1408 states. [2020-10-15 03:29:24,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1996 transitions. [2020-10-15 03:29:24,647 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1996 transitions. Word has length 79 [2020-10-15 03:29:24,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:29:24,647 INFO L479 AbstractCegarLoop]: Abstraction has 1408 states and 1996 transitions. [2020-10-15 03:29:24,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:29:24,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1996 transitions. [2020-10-15 03:29:24,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 03:29:24,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:29:24,650 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] [2020-10-15 03:29:24,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 03:29:24,650 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:29:24,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:29:24,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1343448095, now seen corresponding path program 1 times [2020-10-15 03:29:24,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:29:24,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145294826] [2020-10-15 03:29:24,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:29:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:24,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:24,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:24,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:24,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:25,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:25,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:25,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:25,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:26,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:27,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:27,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:29,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:29,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:29,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 03:29:29,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 03:29:29,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 03:29:29,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:29,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:29,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:29:29,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:29:29,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-15 03:29:29,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:30,385 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:29:30,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:29:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:30,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:30,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:30,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:29:30,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:29:30,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 03:29:30,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:30,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:30,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:29:30,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:29:30,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:29:30,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:30,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:29:30,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145294826] [2020-10-15 03:29:30,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:29:30,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:29:30,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256104239] [2020-10-15 03:29:30,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:29:30,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:29:30,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:29:30,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:29:30,446 INFO L87 Difference]: Start difference. First operand 1408 states and 1996 transitions. Second operand 7 states. [2020-10-15 03:29:31,175 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2020-10-15 03:29:34,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:29:34,310 INFO L93 Difference]: Finished difference Result 4059 states and 5885 transitions. [2020-10-15 03:29:34,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:29:34,311 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-10-15 03:29:34,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:29:34,318 INFO L225 Difference]: With dead ends: 4059 [2020-10-15 03:29:34,319 INFO L226 Difference]: Without dead ends: 3385 [2020-10-15 03:29:34,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:29:34,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3385 states. [2020-10-15 03:29:34,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3385 to 1408. [2020-10-15 03:29:34,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1408 states. [2020-10-15 03:29:34,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1995 transitions. [2020-10-15 03:29:34,475 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1995 transitions. Word has length 79 [2020-10-15 03:29:34,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:29:34,476 INFO L479 AbstractCegarLoop]: Abstraction has 1408 states and 1995 transitions. [2020-10-15 03:29:34,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:29:34,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1995 transitions. [2020-10-15 03:29:34,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-15 03:29:34,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:29:34,478 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] [2020-10-15 03:29:34,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 03:29:34,478 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:29:34,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:29:34,478 INFO L82 PathProgramCache]: Analyzing trace with hash 801729116, now seen corresponding path program 1 times [2020-10-15 03:29:34,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:29:34,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1951973058] [2020-10-15 03:29:34,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:29:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:34,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:34,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:34,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:34,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:34,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:35,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:35,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:39,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:39,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-15 03:29:39,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 03:29:39,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 03:29:39,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:39,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:39,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:29:39,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:29:39,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-15 03:29:39,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:40,226 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:29:40,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:29:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:40,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:40,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:40,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:29:40,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:29:40,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:29:40,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:40,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:40,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:29:40,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:29:40,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:29:40,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:40,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:29:40,263 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1951973058] [2020-10-15 03:29:40,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:29:40,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:29:40,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794159564] [2020-10-15 03:29:40,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:29:40,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:29:40,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:29:40,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:29:40,264 INFO L87 Difference]: Start difference. First operand 1408 states and 1995 transitions. Second operand 8 states. [2020-10-15 03:29:41,014 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:29:44,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:29:44,071 INFO L93 Difference]: Finished difference Result 4704 states and 6933 transitions. [2020-10-15 03:29:44,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:29:44,072 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-15 03:29:44,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:29:44,080 INFO L225 Difference]: With dead ends: 4704 [2020-10-15 03:29:44,080 INFO L226 Difference]: Without dead ends: 3839 [2020-10-15 03:29:44,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:29:44,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3839 states. [2020-10-15 03:29:44,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3839 to 1408. [2020-10-15 03:29:44,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1408 states. [2020-10-15 03:29:44,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1985 transitions. [2020-10-15 03:29:44,295 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1985 transitions. Word has length 80 [2020-10-15 03:29:44,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:29:44,296 INFO L479 AbstractCegarLoop]: Abstraction has 1408 states and 1985 transitions. [2020-10-15 03:29:44,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:29:44,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1985 transitions. [2020-10-15 03:29:44,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-15 03:29:44,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:29:44,298 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] [2020-10-15 03:29:44,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 03:29:44,300 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:29:44,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:29:44,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1440792366, now seen corresponding path program 1 times [2020-10-15 03:29:44,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:29:44,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511490161] [2020-10-15 03:29:44,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:29:44,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:44,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:44,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:44,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:44,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:45,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:45,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:45,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:45,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:46,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:46,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:46,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:46,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:47,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:47,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:47,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:48,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:49,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:49,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-15 03:29:49,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 03:29:49,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 03:29:49,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:49,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:49,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:29:49,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:29:49,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 03:29:49,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:50,067 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:29:50,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:29:50,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:50,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:50,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:50,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:29:50,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:29:50,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:29:50,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:50,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:50,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:29:50,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:29:50,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:29:50,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:50,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:29:50,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511490161] [2020-10-15 03:29:50,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:29:50,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:29:50,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172567883] [2020-10-15 03:29:50,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:29:50,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:29:50,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:29:50,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:29:50,106 INFO L87 Difference]: Start difference. First operand 1408 states and 1985 transitions. Second operand 8 states. [2020-10-15 03:29:50,856 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:29:53,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:29:53,787 INFO L93 Difference]: Finished difference Result 3927 states and 5746 transitions. [2020-10-15 03:29:53,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:29:53,788 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-15 03:29:53,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:29:53,795 INFO L225 Difference]: With dead ends: 3927 [2020-10-15 03:29:53,795 INFO L226 Difference]: Without dead ends: 3411 [2020-10-15 03:29:53,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:29:53,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3411 states. [2020-10-15 03:29:53,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3411 to 1408. [2020-10-15 03:29:53,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1408 states. [2020-10-15 03:29:53,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1979 transitions. [2020-10-15 03:29:53,999 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1979 transitions. Word has length 80 [2020-10-15 03:29:53,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:29:53,999 INFO L479 AbstractCegarLoop]: Abstraction has 1408 states and 1979 transitions. [2020-10-15 03:29:53,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:29:53,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1979 transitions. [2020-10-15 03:29:54,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-15 03:29:54,001 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:29:54,001 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] [2020-10-15 03:29:54,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 03:29:54,002 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:29:54,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:29:54,002 INFO L82 PathProgramCache]: Analyzing trace with hash -185464890, now seen corresponding path program 1 times [2020-10-15 03:29:54,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:29:54,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289894537] [2020-10-15 03:29:54,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:29:54,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:54,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:54,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:54,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:54,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:54,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:54,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:55,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:55,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:55,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:56,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:56,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:56,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:56,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:57,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:59,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:59,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-15 03:29:59,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:29:59,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:29:59,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:59,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:59,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:29:59,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:29:59,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 03:29:59,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:59,753 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:29:59,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:29:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:59,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:59,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:59,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:29:59,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:29:59,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 03:29:59,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:59,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:59,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:29:59,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:29:59,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:29:59,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:59,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:29:59,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289894537] [2020-10-15 03:29:59,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:29:59,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:29:59,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179153646] [2020-10-15 03:29:59,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:29:59,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:29:59,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:29:59,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:29:59,794 INFO L87 Difference]: Start difference. First operand 1408 states and 1979 transitions. Second operand 8 states. [2020-10-15 03:30:00,544 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:30:03,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:30:03,459 INFO L93 Difference]: Finished difference Result 3893 states and 5703 transitions. [2020-10-15 03:30:03,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:30:03,459 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-15 03:30:03,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:30:03,463 INFO L225 Difference]: With dead ends: 3893 [2020-10-15 03:30:03,463 INFO L226 Difference]: Without dead ends: 3345 [2020-10-15 03:30:03,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:30:03,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3345 states. [2020-10-15 03:30:03,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3345 to 1408. [2020-10-15 03:30:03,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1408 states. [2020-10-15 03:30:03,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1973 transitions. [2020-10-15 03:30:03,637 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1973 transitions. Word has length 80 [2020-10-15 03:30:03,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:30:03,638 INFO L479 AbstractCegarLoop]: Abstraction has 1408 states and 1973 transitions. [2020-10-15 03:30:03,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:30:03,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1973 transitions. [2020-10-15 03:30:03,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-15 03:30:03,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:30:03,640 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] [2020-10-15 03:30:03,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 03:30:03,640 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:30:03,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:30:03,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1163547655, now seen corresponding path program 1 times [2020-10-15 03:30:03,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:30:03,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2079896947] [2020-10-15 03:30:03,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:30:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:03,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:03,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:03,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:03,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:03,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:04,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:04,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:04,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:05,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:05,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:07,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:07,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:07,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:07,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:08,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:08,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:08,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-15 03:30:08,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:30:08,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:30:08,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:08,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:30:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:30:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 03:30:08,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:09,363 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:30:09,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:30:09,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:09,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:09,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:09,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:30:09,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:30:09,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 03:30:09,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:09,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:09,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:30:09,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:30:09,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:30:09,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:09,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:30:09,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2079896947] [2020-10-15 03:30:09,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:30:09,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:30:09,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128743151] [2020-10-15 03:30:09,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:30:09,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:30:09,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:30:09,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:30:09,404 INFO L87 Difference]: Start difference. First operand 1408 states and 1973 transitions. Second operand 8 states. [2020-10-15 03:30:10,162 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:30:13,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:30:13,577 INFO L93 Difference]: Finished difference Result 3910 states and 5708 transitions. [2020-10-15 03:30:13,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:30:13,578 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-15 03:30:13,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:30:13,582 INFO L225 Difference]: With dead ends: 3910 [2020-10-15 03:30:13,582 INFO L226 Difference]: Without dead ends: 3905 [2020-10-15 03:30:13,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:30:13,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3905 states. [2020-10-15 03:30:13,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3905 to 1408. [2020-10-15 03:30:13,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1408 states. [2020-10-15 03:30:13,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1969 transitions. [2020-10-15 03:30:13,829 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1969 transitions. Word has length 80 [2020-10-15 03:30:13,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:30:13,830 INFO L479 AbstractCegarLoop]: Abstraction has 1408 states and 1969 transitions. [2020-10-15 03:30:13,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:30:13,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1969 transitions. [2020-10-15 03:30:13,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-15 03:30:13,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:30:13,832 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] [2020-10-15 03:30:13,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 03:30:13,832 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:30:13,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:30:13,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1154735087, now seen corresponding path program 1 times [2020-10-15 03:30:13,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:30:13,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2110653343] [2020-10-15 03:30:13,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:30:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:13,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:13,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:13,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:14,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:14,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:14,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:14,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:14,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:15,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:16,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:16,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:17,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:17,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:18,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:18,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-15 03:30:18,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:30:18,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 03:30:18,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:18,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:18,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:30:18,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:30:18,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 03:30:18,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:19,641 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:30:19,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:30:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:19,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:19,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:19,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:30:19,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:30:19,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 03:30:19,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:19,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:19,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:30:19,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:30:19,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:30:19,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:19,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:30:19,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2110653343] [2020-10-15 03:30:19,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:30:19,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:30:19,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367178418] [2020-10-15 03:30:19,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:30:19,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:30:19,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:30:19,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:30:19,696 INFO L87 Difference]: Start difference. First operand 1408 states and 1969 transitions. Second operand 8 states. [2020-10-15 03:30:20,492 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 03:30:23,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:30:23,592 INFO L93 Difference]: Finished difference Result 3856 states and 5630 transitions. [2020-10-15 03:30:23,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:30:23,592 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-15 03:30:23,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:30:23,596 INFO L225 Difference]: With dead ends: 3856 [2020-10-15 03:30:23,596 INFO L226 Difference]: Without dead ends: 3839 [2020-10-15 03:30:23,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:30:23,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3839 states. [2020-10-15 03:30:23,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3839 to 1408. [2020-10-15 03:30:23,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1408 states. [2020-10-15 03:30:23,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1965 transitions. [2020-10-15 03:30:23,814 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1965 transitions. Word has length 80 [2020-10-15 03:30:23,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:30:23,815 INFO L479 AbstractCegarLoop]: Abstraction has 1408 states and 1965 transitions. [2020-10-15 03:30:23,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:30:23,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1965 transitions. [2020-10-15 03:30:23,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-15 03:30:23,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:30:23,817 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] [2020-10-15 03:30:23,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 03:30:23,817 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:30:23,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:30:23,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1087040727, now seen corresponding path program 1 times [2020-10-15 03:30:23,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:30:23,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [207768037] [2020-10-15 03:30:23,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:30:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:23,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:23,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:23,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:24,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:24,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:27,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:27,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-15 03:30:27,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 03:30:27,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4092 [2020-10-15 03:30:27,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:27,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:27,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:30:27,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:30:27,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-15 03:30:27,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:28,813 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:30:28,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:30:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:28,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:28,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:28,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:30:28,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:30:28,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:30:28,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:28,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:28,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:30:28,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:30:28,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:30:28,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:28,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:30:28,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [207768037] [2020-10-15 03:30:28,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:30:28,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:30:28,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544250272] [2020-10-15 03:30:28,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:30:28,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:30:28,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:30:28,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:30:28,863 INFO L87 Difference]: Start difference. First operand 1408 states and 1965 transitions. Second operand 9 states. [2020-10-15 03:30:29,604 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:30:33,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:30:33,293 INFO L93 Difference]: Finished difference Result 3851 states and 5643 transitions. [2020-10-15 03:30:33,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:30:33,293 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-10-15 03:30:33,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:30:33,299 INFO L225 Difference]: With dead ends: 3851 [2020-10-15 03:30:33,299 INFO L226 Difference]: Without dead ends: 3845 [2020-10-15 03:30:33,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:30:33,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3845 states. [2020-10-15 03:30:33,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3845 to 1402. [2020-10-15 03:30:33,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1402 states. [2020-10-15 03:30:33,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1950 transitions. [2020-10-15 03:30:33,525 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1950 transitions. Word has length 82 [2020-10-15 03:30:33,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:30:33,525 INFO L479 AbstractCegarLoop]: Abstraction has 1402 states and 1950 transitions. [2020-10-15 03:30:33,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:30:33,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1950 transitions. [2020-10-15 03:30:33,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-15 03:30:33,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:30:33,527 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] [2020-10-15 03:30:33,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-15 03:30:33,527 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:30:33,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:30:33,527 INFO L82 PathProgramCache]: Analyzing trace with hash 808600001, now seen corresponding path program 1 times [2020-10-15 03:30:33,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:30:33,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1216475403] [2020-10-15 03:30:33,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:30:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:33,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:33,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:34,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:34,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:38,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:38,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-15 03:30:38,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 03:30:38,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4518 [2020-10-15 03:30:38,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:38,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:38,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:30:38,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:30:38,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-15 03:30:38,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:38,890 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:30:38,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:30:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:38,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:38,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:38,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:30:38,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:30:38,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:30:38,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:38,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:38,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:30:38,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:30:38,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:30:38,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:38,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:30:38,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1216475403] [2020-10-15 03:30:38,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:30:38,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:30:38,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196918457] [2020-10-15 03:30:38,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:30:38,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:30:38,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:30:38,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:30:38,938 INFO L87 Difference]: Start difference. First operand 1402 states and 1950 transitions. Second operand 9 states. [2020-10-15 03:30:39,708 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 03:30:42,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:30:42,741 INFO L93 Difference]: Finished difference Result 2434 states and 3512 transitions. [2020-10-15 03:30:42,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:30:42,742 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-10-15 03:30:42,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:30:42,744 INFO L225 Difference]: With dead ends: 2434 [2020-10-15 03:30:42,744 INFO L226 Difference]: Without dead ends: 1800 [2020-10-15 03:30:42,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:30:42,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2020-10-15 03:30:42,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1264. [2020-10-15 03:30:42,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1264 states. [2020-10-15 03:30:42,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1755 transitions. [2020-10-15 03:30:42,930 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1755 transitions. Word has length 82 [2020-10-15 03:30:42,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:30:42,931 INFO L479 AbstractCegarLoop]: Abstraction has 1264 states and 1755 transitions. [2020-10-15 03:30:42,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:30:42,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1755 transitions. [2020-10-15 03:30:42,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-15 03:30:42,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:30:42,932 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] [2020-10-15 03:30:42,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-15 03:30:42,932 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:30:42,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:30:42,932 INFO L82 PathProgramCache]: Analyzing trace with hash -656156916, now seen corresponding path program 1 times [2020-10-15 03:30:42,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:30:42,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [757640342] [2020-10-15 03:30:42,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:30:42,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:42,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:43,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:43,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:43,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:43,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:43,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:44,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:44,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:44,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:44,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking...