/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=NARROWEST --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.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 14:17:47,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 14:17:47,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 14:17:47,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 14:17:47,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 14:17:47,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 14:17:47,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 14:17:47,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 14:17:47,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 14:17:47,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 14:17:47,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 14:17:47,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 14:17:47,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 14:17:47,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 14:17:47,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 14:17:47,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 14:17:47,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 14:17:47,572 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 14:17:47,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 14:17:47,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 14:17:47,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 14:17:47,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 14:17:47,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 14:17:47,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 14:17:47,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 14:17:47,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 14:17:47,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 14:17:47,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 14:17:47,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 14:17:47,605 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 14:17:47,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 14:17:47,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 14:17:47,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 14:17:47,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 14:17:47,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 14:17:47,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 14:17:47,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 14:17:47,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 14:17:47,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 14:17:47,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 14:17:47,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 14:17:47,619 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 [2020-10-13 14:17:47,661 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 14:17:47,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 14:17:47,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 14:17:47,663 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 14:17:47,664 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 14:17:47,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 14:17:47,664 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 14:17:47,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 14:17:47,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 14:17:47,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 14:17:47,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 14:17:47,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 14:17:47,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 14:17:47,666 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 14:17:47,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 14:17:47,668 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 14:17:47,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 14:17:47,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 14:17:47,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 14:17:47,668 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 14:17:47,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 14:17:47,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 14:17:47,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 14:17:47,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 14:17:47,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 14:17:47,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 14:17:47,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 14:17:47,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 14:17:47,671 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 14:17:47,671 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 14:17:47,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 14:17:47,995 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 14:17:48,000 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 14:17:48,002 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 14:17:48,003 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 14:17:48,003 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-13 14:17:48,063 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a6d3f2ee/337e15e1c84c49ab99f903a41927e510/FLAG680303889 [2020-10-13 14:17:48,750 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 14:17:48,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-13 14:17:48,773 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a6d3f2ee/337e15e1c84c49ab99f903a41927e510/FLAG680303889 [2020-10-13 14:17:48,819 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a6d3f2ee/337e15e1c84c49ab99f903a41927e510 [2020-10-13 14:17:48,829 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 14:17:48,831 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 14:17:48,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 14:17:48,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 14:17:48,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 14:17:48,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:17:48" (1/1) ... [2020-10-13 14:17:48,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15e98a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:17:48, skipping insertion in model container [2020-10-13 14:17:48,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:17:48" (1/1) ... [2020-10-13 14:17:48,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 14:17:48,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 14:17:49,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 14:17:49,861 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 14:17:50,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 14:17:50,317 INFO L208 MainTranslator]: Completed translation [2020-10-13 14:17:50,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:17:50 WrapperNode [2020-10-13 14:17:50,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 14:17:50,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 14:17:50,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 14:17:50,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 14:17:50,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:17:50" (1/1) ... [2020-10-13 14:17:50,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:17:50" (1/1) ... [2020-10-13 14:17:50,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:17:50" (1/1) ... [2020-10-13 14:17:50,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:17:50" (1/1) ... [2020-10-13 14:17:50,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:17:50" (1/1) ... [2020-10-13 14:17:50,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:17:50" (1/1) ... [2020-10-13 14:17:50,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:17:50" (1/1) ... [2020-10-13 14:17:50,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 14:17:50,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 14:17:50,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 14:17:50,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 14:17:50,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:17:50" (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 [2020-10-13 14:17:50,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 14:17:50,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 14:17:50,700 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 14:17:50,700 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 14:17:50,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 14:17:50,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 14:17:50,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 14:17:50,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-13 14:17:50,702 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 14:17:50,703 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 14:17:50,703 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 14:17:50,703 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 14:17:50,703 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 14:17:50,703 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 14:17:50,703 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 14:17:50,704 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 14:17:50,705 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 14:17:50,705 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-13 14:17:50,705 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 14:17:50,705 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 14:17:50,705 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 14:17:50,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 14:17:50,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 14:17:53,052 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 14:17:53,053 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 14:17:53,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:17:53 BoogieIcfgContainer [2020-10-13 14:17:53,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 14:17:53,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 14:17:53,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 14:17:53,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 14:17:53,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 02:17:48" (1/3) ... [2020-10-13 14:17:53,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49456a55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:17:53, skipping insertion in model container [2020-10-13 14:17:53,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:17:50" (2/3) ... [2020-10-13 14:17:53,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49456a55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:17:53, skipping insertion in model container [2020-10-13 14:17:53,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:17:53" (3/3) ... [2020-10-13 14:17:53,070 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-13 14:17:53,082 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 14:17:53,091 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-10-13 14:17:53,108 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-10-13 14:17:53,142 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 14:17:53,142 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 14:17:53,142 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 14:17:53,143 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 14:17:53,143 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 14:17:53,143 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 14:17:53,143 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 14:17:53,143 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 14:17:53,187 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states. [2020-10-13 14:17:53,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-13 14:17:53,226 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:17:53,227 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] [2020-10-13 14:17:53,232 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]=== [2020-10-13 14:17:53,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:17:53,239 INFO L82 PathProgramCache]: Analyzing trace with hash 400936191, now seen corresponding path program 1 times [2020-10-13 14:17:53,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:17:53,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2108944954] [2020-10-13 14:17:53,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:17:53,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:53,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:53,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:54,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:54,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:54,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:54,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:54,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:55,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:55,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:55,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:56,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:58,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:58,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 14:17:58,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-13 14:17:58,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-13 14:17:58,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:58,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:17:58,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-13 14:17:58,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 14:17:58,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 14:17:59,718 WARN L193 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:17:59,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:17:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:17:59,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:17:59,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:17:59,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:17:59,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:17:59,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 14:17:59,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:17:59,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:17:59,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:17:59,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:17:59,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:17:59,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:17:59,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2108944954] [2020-10-13 14:17:59,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:17:59,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:17:59,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786922923] [2020-10-13 14:17:59,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:17:59,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:17:59,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:17:59,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:17:59,809 INFO L87 Difference]: Start difference. First operand 631 states. Second operand 7 states. [2020-10-13 14:18:00,418 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-13 14:18:06,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:18:06,097 INFO L93 Difference]: Finished difference Result 2038 states and 3361 transitions. [2020-10-13 14:18:06,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:18:06,099 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 75 [2020-10-13 14:18:06,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:18:06,134 INFO L225 Difference]: With dead ends: 2038 [2020-10-13 14:18:06,135 INFO L226 Difference]: Without dead ends: 1634 [2020-10-13 14:18:06,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:18:06,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2020-10-13 14:18:06,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 984. [2020-10-13 14:18:06,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 984 states. [2020-10-13 14:18:06,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1320 transitions. [2020-10-13 14:18:06,277 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1320 transitions. Word has length 75 [2020-10-13 14:18:06,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:18:06,278 INFO L479 AbstractCegarLoop]: Abstraction has 984 states and 1320 transitions. [2020-10-13 14:18:06,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:18:06,279 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1320 transitions. [2020-10-13 14:18:06,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-13 14:18:06,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:18:06,287 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] [2020-10-13 14:18:06,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 14:18:06,287 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]=== [2020-10-13 14:18:06,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:18:06,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1549459471, now seen corresponding path program 1 times [2020-10-13 14:18:06,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:18:06,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257376675] [2020-10-13 14:18:06,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:18:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:06,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:06,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:06,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:06,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:06,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:06,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:06,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:07,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:11,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:11,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 14:18:11,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 14:18:11,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-13 14:18:11,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:11,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:18:11,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 14:18:11,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 14:18:11,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-10-13 14:18:12,125 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:18:12,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:18:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:12,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:12,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:12,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:18:12,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:18:12,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 14:18:12,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:12,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:18:12,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:18:12,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:18:12,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:18:12,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:18:12,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [257376675] [2020-10-13 14:18:12,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:18:12,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:18:12,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923053330] [2020-10-13 14:18:12,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:18:12,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:18:12,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:18:12,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:18:12,184 INFO L87 Difference]: Start difference. First operand 984 states and 1320 transitions. Second operand 7 states. [2020-10-13 14:18:12,718 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-13 14:18:16,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:18:16,449 INFO L93 Difference]: Finished difference Result 3245 states and 4513 transitions. [2020-10-13 14:18:16,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:18:16,450 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 76 [2020-10-13 14:18:16,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:18:16,468 INFO L225 Difference]: With dead ends: 3245 [2020-10-13 14:18:16,468 INFO L226 Difference]: Without dead ends: 2784 [2020-10-13 14:18:16,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:18:16,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2020-10-13 14:18:16,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 1462. [2020-10-13 14:18:16,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1462 states. [2020-10-13 14:18:16,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 2044 transitions. [2020-10-13 14:18:16,566 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 2044 transitions. Word has length 76 [2020-10-13 14:18:16,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:18:16,567 INFO L479 AbstractCegarLoop]: Abstraction has 1462 states and 2044 transitions. [2020-10-13 14:18:16,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:18:16,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 2044 transitions. [2020-10-13 14:18:16,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-13 14:18:16,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:18:16,571 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] [2020-10-13 14:18:16,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 14:18:16,571 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]=== [2020-10-13 14:18:16,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:18:16,572 INFO L82 PathProgramCache]: Analyzing trace with hash 446163381, now seen corresponding path program 1 times [2020-10-13 14:18:16,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:18:16,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1187868244] [2020-10-13 14:18:16,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:18:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:16,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:16,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:16,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:16,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:17,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:17,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:17,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:17,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:21,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:21,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 14:18:21,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 14:18:21,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 14:18:21,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:21,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:18:21,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 14:18:21,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 14:18:21,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:22,282 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:18:22,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:18:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:22,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:22,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:22,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:18:22,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:18:22,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 14:18:22,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:22,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:18:22,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:18:22,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:18:22,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:22,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:18:22,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1187868244] [2020-10-13 14:18:22,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:18:22,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:18:22,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220273317] [2020-10-13 14:18:22,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:18:22,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:18:22,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:18:22,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:18:22,343 INFO L87 Difference]: Start difference. First operand 1462 states and 2044 transitions. Second operand 7 states. [2020-10-13 14:18:22,860 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-13 14:18:27,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:18:27,478 INFO L93 Difference]: Finished difference Result 5928 states and 8589 transitions. [2020-10-13 14:18:27,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:18:27,484 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 76 [2020-10-13 14:18:27,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:18:27,510 INFO L225 Difference]: With dead ends: 5928 [2020-10-13 14:18:27,510 INFO L226 Difference]: Without dead ends: 5058 [2020-10-13 14:18:27,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:18:27,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5058 states. [2020-10-13 14:18:27,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5058 to 2588. [2020-10-13 14:18:27,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2588 states. [2020-10-13 14:18:27,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2588 states to 2588 states and 3741 transitions. [2020-10-13 14:18:27,662 INFO L78 Accepts]: Start accepts. Automaton has 2588 states and 3741 transitions. Word has length 76 [2020-10-13 14:18:27,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:18:27,664 INFO L479 AbstractCegarLoop]: Abstraction has 2588 states and 3741 transitions. [2020-10-13 14:18:27,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:18:27,667 INFO L276 IsEmpty]: Start isEmpty. Operand 2588 states and 3741 transitions. [2020-10-13 14:18:27,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-13 14:18:27,673 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:18:27,674 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] [2020-10-13 14:18:27,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 14:18:27,674 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]=== [2020-10-13 14:18:27,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:18:27,675 INFO L82 PathProgramCache]: Analyzing trace with hash -446635459, now seen corresponding path program 1 times [2020-10-13 14:18:27,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:18:27,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1054517506] [2020-10-13 14:18:27,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:18:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:27,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:27,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:27,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:27,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:28,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:28,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:28,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:30,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:32,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:32,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:32,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:32,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:32,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:32,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-13 14:18:32,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-13 14:18:32,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 14:18:32,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:32,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:18:32,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 14:18:32,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-13 14:18:32,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:33,215 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:18:33,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:18:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:33,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:33,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:33,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:18:33,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:18:33,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 14:18:33,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:33,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:18:33,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:18:33,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:18:33,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:33,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:18:33,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1054517506] [2020-10-13 14:18:33,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:18:33,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:18:33,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871982223] [2020-10-13 14:18:33,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:18:33,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:18:33,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:18:33,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:18:33,266 INFO L87 Difference]: Start difference. First operand 2588 states and 3741 transitions. Second operand 7 states. [2020-10-13 14:18:33,794 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-13 14:18:37,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:18:37,210 INFO L93 Difference]: Finished difference Result 5524 states and 7999 transitions. [2020-10-13 14:18:37,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:18:37,211 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2020-10-13 14:18:37,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:18:37,232 INFO L225 Difference]: With dead ends: 5524 [2020-10-13 14:18:37,232 INFO L226 Difference]: Without dead ends: 4272 [2020-10-13 14:18:37,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:18:37,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4272 states. [2020-10-13 14:18:37,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4272 to 2308. [2020-10-13 14:18:37,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2308 states. [2020-10-13 14:18:37,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2308 states to 2308 states and 3311 transitions. [2020-10-13 14:18:37,363 INFO L78 Accepts]: Start accepts. Automaton has 2308 states and 3311 transitions. Word has length 77 [2020-10-13 14:18:37,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:18:37,366 INFO L479 AbstractCegarLoop]: Abstraction has 2308 states and 3311 transitions. [2020-10-13 14:18:37,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:18:37,366 INFO L276 IsEmpty]: Start isEmpty. Operand 2308 states and 3311 transitions. [2020-10-13 14:18:37,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-13 14:18:37,370 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:18:37,370 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] [2020-10-13 14:18:37,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 14:18:37,371 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]=== [2020-10-13 14:18:37,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:18:37,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1899738779, now seen corresponding path program 1 times [2020-10-13 14:18:37,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:18:37,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [610699876] [2020-10-13 14:18:37,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:18:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:37,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:37,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:37,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:37,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:37,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:38,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:38,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:38,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:39,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:42,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:42,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-13 14:18:42,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 14:18:42,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 14:18:42,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:42,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:18:42,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 14:18:42,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-13 14:18:42,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:43,104 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:18:43,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:18:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:43,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:43,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:43,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:18:43,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:18:43,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 14:18:43,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:43,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:18:43,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:18:43,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:18:43,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:43,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:18:43,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [610699876] [2020-10-13 14:18:43,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:18:43,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:18:43,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048308142] [2020-10-13 14:18:43,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:18:43,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:18:43,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:18:43,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:18:43,170 INFO L87 Difference]: Start difference. First operand 2308 states and 3311 transitions. Second operand 7 states. [2020-10-13 14:18:43,709 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-13 14:18:46,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:18:46,866 INFO L93 Difference]: Finished difference Result 10395 states and 15333 transitions. [2020-10-13 14:18:46,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:18:46,867 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2020-10-13 14:18:46,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:18:46,904 INFO L225 Difference]: With dead ends: 10395 [2020-10-13 14:18:46,904 INFO L226 Difference]: Without dead ends: 8869 [2020-10-13 14:18:46,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:18:46,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8869 states. [2020-10-13 14:18:47,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8869 to 4486. [2020-10-13 14:18:47,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4486 states. [2020-10-13 14:18:47,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4486 states to 4486 states and 6572 transitions. [2020-10-13 14:18:47,172 INFO L78 Accepts]: Start accepts. Automaton has 4486 states and 6572 transitions. Word has length 77 [2020-10-13 14:18:47,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:18:47,172 INFO L479 AbstractCegarLoop]: Abstraction has 4486 states and 6572 transitions. [2020-10-13 14:18:47,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:18:47,175 INFO L276 IsEmpty]: Start isEmpty. Operand 4486 states and 6572 transitions. [2020-10-13 14:18:47,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 14:18:47,185 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:18:47,185 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] [2020-10-13 14:18:47,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 14:18:47,186 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]=== [2020-10-13 14:18:47,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:18:47,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1714609627, now seen corresponding path program 1 times [2020-10-13 14:18:47,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:18:47,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2014410239] [2020-10-13 14:18:47,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:18:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:47,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:47,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:47,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:47,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:47,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:48,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:48,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:48,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:48,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:48,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:49,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:50,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:50,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:50,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:50,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:50,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:50,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:51,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:51,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:51,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:51,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:52,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:52,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 14:18:52,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-13 14:18:52,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 14:18:52,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:52,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:18:52,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 14:18:52,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 14:18:52,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:52,757 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:18:52,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:18:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:52,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:52,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:18:52,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:18:52,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:18:52,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 14:18:52,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:18:52,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:18:52,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:18:52,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:18:52,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:18:52,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:18:52,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2014410239] [2020-10-13 14:18:52,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:18:52,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:18:52,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495433481] [2020-10-13 14:18:52,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:18:52,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:18:52,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:18:52,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:18:52,804 INFO L87 Difference]: Start difference. First operand 4486 states and 6572 transitions. Second operand 7 states. [2020-10-13 14:18:53,337 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-13 14:18:56,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:18:56,594 INFO L93 Difference]: Finished difference Result 11804 states and 17506 transitions. [2020-10-13 14:18:56,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:18:56,595 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2020-10-13 14:18:56,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:18:56,626 INFO L225 Difference]: With dead ends: 11804 [2020-10-13 14:18:56,627 INFO L226 Difference]: Without dead ends: 10274 [2020-10-13 14:18:56,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:18:56,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10274 states. [2020-10-13 14:18:56,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10274 to 5281. [2020-10-13 14:18:56,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5281 states. [2020-10-13 14:18:56,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 7762 transitions. [2020-10-13 14:18:56,891 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 7762 transitions. Word has length 78 [2020-10-13 14:18:56,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:18:56,892 INFO L479 AbstractCegarLoop]: Abstraction has 5281 states and 7762 transitions. [2020-10-13 14:18:56,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:18:56,892 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 7762 transitions. [2020-10-13 14:18:56,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 14:18:56,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:18:56,900 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] [2020-10-13 14:18:56,900 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 14:18:56,900 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]=== [2020-10-13 14:18:56,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:18:56,901 INFO L82 PathProgramCache]: Analyzing trace with hash 546884155, now seen corresponding path program 1 times [2020-10-13 14:18:56,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:18:56,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2127126555] [2020-10-13 14:18:56,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:18:56,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:18:56,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:56,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:57,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:57,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:57,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:57,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:57,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:58,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:58,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:58,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:18:58,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:00,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:00,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:00,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:00,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:00,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:00,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:00,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:01,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:01,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:01,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:01,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:19:01,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 14:19:01,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-13 14:19:01,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 14:19:01,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:19:01,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 14:19:01,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-13 14:19:01,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 14:19:01,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:19:02,539 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:19:02,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:19:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:19:02,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:02,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:19:02,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:19:02,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:19:02,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 14:19:02,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:19:02,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:19:02,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:19:02,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:19:02,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:19:02,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:19:02,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2127126555] [2020-10-13 14:19:02,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:19:02,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 14:19:02,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464572735] [2020-10-13 14:19:02,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 14:19:02,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:19:02,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 14:19:02,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-13 14:19:02,593 INFO L87 Difference]: Start difference. First operand 5281 states and 7762 transitions. Second operand 9 states. [2020-10-13 14:19:03,108 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 303 [2020-10-13 14:19:08,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:19:08,176 INFO L93 Difference]: Finished difference Result 16146 states and 24270 transitions. [2020-10-13 14:19:08,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 14:19:08,176 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-10-13 14:19:08,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:19:08,207 INFO L225 Difference]: With dead ends: 16146 [2020-10-13 14:19:08,207 INFO L226 Difference]: Without dead ends: 14174 [2020-10-13 14:19:08,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2020-10-13 14:19:08,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14174 states. [2020-10-13 14:19:08,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14174 to 5265. [2020-10-13 14:19:08,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5265 states. [2020-10-13 14:19:08,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 7728 transitions. [2020-10-13 14:19:08,605 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 7728 transitions. Word has length 78 [2020-10-13 14:19:08,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:19:08,605 INFO L479 AbstractCegarLoop]: Abstraction has 5265 states and 7728 transitions. [2020-10-13 14:19:08,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 14:19:08,605 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 7728 transitions. [2020-10-13 14:19:08,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 14:19:08,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:19:08,612 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] [2020-10-13 14:19:08,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 14:19:08,613 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]=== [2020-10-13 14:19:08,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:19:08,613 INFO L82 PathProgramCache]: Analyzing trace with hash -663252087, now seen corresponding path program 1 times [2020-10-13 14:19:08,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:19:08,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [309120199] [2020-10-13 14:19:08,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:19:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:19:08,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:08,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:08,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:08,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:09,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:09,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:09,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:10,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:10,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:10,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:10,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:12,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:12,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:12,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:12,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:12,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:12,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:12,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:13,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:13,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:13,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:19:13,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 14:19:13,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-13 14:19:13,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 14:19:13,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:19:13,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 14:19:13,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-13 14:19:13,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 14:19:13,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:19:14,239 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:19:14,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:19:14,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:19:14,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:14,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:19:14,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:19:14,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:19:14,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 14:19:14,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:19:14,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:19:14,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:19:14,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:19:14,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:19:14,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:19:14,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [309120199] [2020-10-13 14:19:14,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:19:14,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 14:19:14,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712139495] [2020-10-13 14:19:14,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 14:19:14,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:19:14,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 14:19:14,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-13 14:19:14,279 INFO L87 Difference]: Start difference. First operand 5265 states and 7728 transitions. Second operand 9 states. [2020-10-13 14:19:14,813 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2020-10-13 14:19:20,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:19:20,108 INFO L93 Difference]: Finished difference Result 17159 states and 25583 transitions. [2020-10-13 14:19:20,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 14:19:20,109 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-10-13 14:19:20,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:19:20,139 INFO L225 Difference]: With dead ends: 17159 [2020-10-13 14:19:20,140 INFO L226 Difference]: Without dead ends: 15519 [2020-10-13 14:19:20,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2020-10-13 14:19:20,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15519 states. [2020-10-13 14:19:20,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15519 to 5265. [2020-10-13 14:19:20,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5265 states. [2020-10-13 14:19:20,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 7726 transitions. [2020-10-13 14:19:20,614 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 7726 transitions. Word has length 78 [2020-10-13 14:19:20,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:19:20,614 INFO L479 AbstractCegarLoop]: Abstraction has 5265 states and 7726 transitions. [2020-10-13 14:19:20,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 14:19:20,615 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 7726 transitions. [2020-10-13 14:19:20,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 14:19:20,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:19:20,620 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] [2020-10-13 14:19:20,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 14:19:20,621 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]=== [2020-10-13 14:19:20,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:19:20,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1775886553, now seen corresponding path program 1 times [2020-10-13 14:19:20,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:19:20,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [845561645] [2020-10-13 14:19:20,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:19:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:19:20,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:20,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:20,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:20,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:20,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:21,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:21,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:21,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:21,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:22,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:23,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:23,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:23,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:24,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:24,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:24,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:24,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:25,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:25,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:25,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:25,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:19:25,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 14:19:25,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-13 14:19:25,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 14:19:25,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:19:25,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 14:19:25,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-13 14:19:25,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 14:19:25,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:19:26,259 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:19:26,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:19:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:19:26,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:26,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:19:26,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:19:26,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:19:26,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 14:19:26,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:19:26,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:19:26,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:19:26,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:19:26,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:19:26,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:19:26,306 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [845561645] [2020-10-13 14:19:26,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:19:26,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 14:19:26,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243497309] [2020-10-13 14:19:26,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 14:19:26,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:19:26,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 14:19:26,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-13 14:19:26,308 INFO L87 Difference]: Start difference. First operand 5265 states and 7726 transitions. Second operand 9 states. [2020-10-13 14:19:26,828 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-13 14:19:31,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:19:31,270 INFO L93 Difference]: Finished difference Result 19030 states and 28449 transitions. [2020-10-13 14:19:31,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 14:19:31,270 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-10-13 14:19:31,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:19:31,303 INFO L225 Difference]: With dead ends: 19030 [2020-10-13 14:19:31,303 INFO L226 Difference]: Without dead ends: 16388 [2020-10-13 14:19:31,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2020-10-13 14:19:31,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16388 states. [2020-10-13 14:19:31,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16388 to 5270. [2020-10-13 14:19:31,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5270 states. [2020-10-13 14:19:31,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5270 states to 5270 states and 7702 transitions. [2020-10-13 14:19:31,827 INFO L78 Accepts]: Start accepts. Automaton has 5270 states and 7702 transitions. Word has length 78 [2020-10-13 14:19:31,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:19:31,828 INFO L479 AbstractCegarLoop]: Abstraction has 5270 states and 7702 transitions. [2020-10-13 14:19:31,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 14:19:31,828 INFO L276 IsEmpty]: Start isEmpty. Operand 5270 states and 7702 transitions. [2020-10-13 14:19:31,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 14:19:31,834 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:19:31,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:19:31,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 14:19:31,835 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]=== [2020-10-13 14:19:31,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:19:31,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1521754780, now seen corresponding path program 1 times [2020-10-13 14:19:31,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:19:31,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1579589419] [2020-10-13 14:19:31,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:19:31,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:19:31,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:31,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:32,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:32,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:33,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:33,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:33,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:33,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:35,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:35,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:35,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:35,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:36,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:36,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:19:36,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 14:19:36,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-13 14:19:36,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 14:19:36,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:19:36,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:19:36,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 14:19:36,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-13 14:19:36,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:19:37,364 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:19:37,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:19:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:19:37,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:37,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:19:37,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:19:37,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:19:37,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 14:19:37,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:19:37,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:19:37,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:19:37,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 14:19:37,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:19:37,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:19:37,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1579589419] [2020-10-13 14:19:37,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:19:37,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:19:37,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906507713] [2020-10-13 14:19:37,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:19:37,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:19:37,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:19:37,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:19:37,466 INFO L87 Difference]: Start difference. First operand 5270 states and 7702 transitions. Second operand 6 states. [2020-10-13 14:19:37,971 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-13 14:19:40,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:19:40,513 INFO L93 Difference]: Finished difference Result 9429 states and 13818 transitions. [2020-10-13 14:19:40,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 14:19:40,513 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2020-10-13 14:19:40,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:19:40,524 INFO L225 Difference]: With dead ends: 9429 [2020-10-13 14:19:40,524 INFO L226 Difference]: Without dead ends: 6894 [2020-10-13 14:19:40,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 14:19:40,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6894 states. [2020-10-13 14:19:40,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6894 to 5162. [2020-10-13 14:19:40,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5162 states. [2020-10-13 14:19:40,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5162 states to 5162 states and 7574 transitions. [2020-10-13 14:19:40,932 INFO L78 Accepts]: Start accepts. Automaton has 5162 states and 7574 transitions. Word has length 78 [2020-10-13 14:19:40,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:19:40,933 INFO L479 AbstractCegarLoop]: Abstraction has 5162 states and 7574 transitions. [2020-10-13 14:19:40,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:19:40,933 INFO L276 IsEmpty]: Start isEmpty. Operand 5162 states and 7574 transitions. [2020-10-13 14:19:40,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 14:19:40,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:19:40,938 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] [2020-10-13 14:19:40,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 14:19:40,938 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]=== [2020-10-13 14:19:40,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:19:40,938 INFO L82 PathProgramCache]: Analyzing trace with hash -338626560, now seen corresponding path program 1 times [2020-10-13 14:19:40,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:19:40,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913840117] [2020-10-13 14:19:40,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:19:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:19:40,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:41,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:41,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:41,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:42,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:42,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:42,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:42,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:42,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:42,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:44,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:44,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:44,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:44,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:44,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:45,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:45,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:45,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:45,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:19:45,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 14:19:45,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-13 14:19:45,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 14:19:45,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:19:45,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:19:45,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 14:19:45,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 14:19:45,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:19:46,475 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:19:46,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:19:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:19:46,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:46,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:19:46,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:19:46,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:19:46,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 14:19:46,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:19:46,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:19:46,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:19:46,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:19:46,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:19:46,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:19:46,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913840117] [2020-10-13 14:19:46,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:19:46,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:19:46,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484023112] [2020-10-13 14:19:46,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:19:46,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:19:46,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:19:46,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:19:46,520 INFO L87 Difference]: Start difference. First operand 5162 states and 7574 transitions. Second operand 7 states. [2020-10-13 14:19:47,038 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-13 14:19:51,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:19:51,076 INFO L93 Difference]: Finished difference Result 13620 states and 20134 transitions. [2020-10-13 14:19:51,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:19:51,077 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2020-10-13 14:19:51,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:19:51,090 INFO L225 Difference]: With dead ends: 13620 [2020-10-13 14:19:51,090 INFO L226 Difference]: Without dead ends: 11194 [2020-10-13 14:19:51,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:19:51,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11194 states. [2020-10-13 14:19:51,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11194 to 5007. [2020-10-13 14:19:51,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5007 states. [2020-10-13 14:19:51,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5007 states to 5007 states and 7343 transitions. [2020-10-13 14:19:51,540 INFO L78 Accepts]: Start accepts. Automaton has 5007 states and 7343 transitions. Word has length 78 [2020-10-13 14:19:51,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:19:51,540 INFO L479 AbstractCegarLoop]: Abstraction has 5007 states and 7343 transitions. [2020-10-13 14:19:51,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:19:51,540 INFO L276 IsEmpty]: Start isEmpty. Operand 5007 states and 7343 transitions. [2020-10-13 14:19:51,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 14:19:51,544 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:19:51,544 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] [2020-10-13 14:19:51,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 14:19:51,545 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]=== [2020-10-13 14:19:51,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:19:51,545 INFO L82 PathProgramCache]: Analyzing trace with hash 530273938, now seen corresponding path program 1 times [2020-10-13 14:19:51,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:19:51,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [727644902] [2020-10-13 14:19:51,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:19:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:19:51,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:51,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:51,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:51,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:51,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:52,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:52,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:52,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:52,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:53,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:53,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:54,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:55,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:56,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:19:56,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 14:19:56,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-13 14:19:56,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 14:19:56,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:19:56,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:19:56,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 14:19:56,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 14:19:56,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:19:57,121 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:19:57,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:19:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:19:57,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:19:57,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:19:57,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:19:57,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:19:57,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 14:19:57,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:19:57,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:19:57,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:19:57,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:19:57,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:19:57,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:19:57,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [727644902] [2020-10-13 14:19:57,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:19:57,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:19:57,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082048016] [2020-10-13 14:19:57,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:19:57,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:19:57,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:19:57,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:19:57,154 INFO L87 Difference]: Start difference. First operand 5007 states and 7343 transitions. Second operand 7 states. [2020-10-13 14:19:57,669 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-13 14:20:01,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:20:01,733 INFO L93 Difference]: Finished difference Result 13161 states and 19417 transitions. [2020-10-13 14:20:01,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:20:01,733 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2020-10-13 14:20:01,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:20:01,745 INFO L225 Difference]: With dead ends: 13161 [2020-10-13 14:20:01,745 INFO L226 Difference]: Without dead ends: 10673 [2020-10-13 14:20:01,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:20:01,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10673 states. [2020-10-13 14:20:02,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10673 to 4813. [2020-10-13 14:20:02,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4813 states. [2020-10-13 14:20:02,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4813 states to 4813 states and 7045 transitions. [2020-10-13 14:20:02,248 INFO L78 Accepts]: Start accepts. Automaton has 4813 states and 7045 transitions. Word has length 78 [2020-10-13 14:20:02,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:20:02,248 INFO L479 AbstractCegarLoop]: Abstraction has 4813 states and 7045 transitions. [2020-10-13 14:20:02,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:20:02,248 INFO L276 IsEmpty]: Start isEmpty. Operand 4813 states and 7045 transitions. [2020-10-13 14:20:02,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 14:20:02,251 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:20:02,252 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] [2020-10-13 14:20:02,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 14:20:02,252 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]=== [2020-10-13 14:20:02,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:20:02,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1482725264, now seen corresponding path program 1 times [2020-10-13 14:20:02,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:20:02,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132204742] [2020-10-13 14:20:02,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:20:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:20:02,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:02,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:02,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:03,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:03,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:03,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:03,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:04,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:04,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:04,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:05,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:05,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:05,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:05,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:06,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:06,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:07,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:20:07,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 14:20:07,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-13 14:20:07,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-13 14:20:07,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:20:07,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:20:07,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 14:20:07,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 14:20:07,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:20:07,796 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:20:07,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:20:07,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:20:07,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:07,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:20:07,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:20:07,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:20:07,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 14:20:07,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:20:07,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:20:07,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:20:07,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 14:20:07,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:20:07,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:20:07,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132204742] [2020-10-13 14:20:07,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:20:07,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:20:07,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823458310] [2020-10-13 14:20:07,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:20:07,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:20:07,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:20:07,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:20:07,851 INFO L87 Difference]: Start difference. First operand 4813 states and 7045 transitions. Second operand 6 states. [2020-10-13 14:20:08,383 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-13 14:20:10,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:20:10,843 INFO L93 Difference]: Finished difference Result 7139 states and 10491 transitions. [2020-10-13 14:20:10,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 14:20:10,844 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2020-10-13 14:20:10,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:20:10,849 INFO L225 Difference]: With dead ends: 7139 [2020-10-13 14:20:10,849 INFO L226 Difference]: Without dead ends: 4540 [2020-10-13 14:20:10,853 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-13 14:20:10,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4540 states. [2020-10-13 14:20:11,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4540 to 2718. [2020-10-13 14:20:11,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2718 states. [2020-10-13 14:20:11,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2718 states to 2718 states and 3946 transitions. [2020-10-13 14:20:11,134 INFO L78 Accepts]: Start accepts. Automaton has 2718 states and 3946 transitions. Word has length 79 [2020-10-13 14:20:11,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:20:11,134 INFO L479 AbstractCegarLoop]: Abstraction has 2718 states and 3946 transitions. [2020-10-13 14:20:11,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:20:11,134 INFO L276 IsEmpty]: Start isEmpty. Operand 2718 states and 3946 transitions. [2020-10-13 14:20:11,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 14:20:11,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:20:11,138 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] [2020-10-13 14:20:11,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 14:20:11,138 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]=== [2020-10-13 14:20:11,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:20:11,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1033193686, now seen corresponding path program 1 times [2020-10-13 14:20:11,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:20:11,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1967168602] [2020-10-13 14:20:11,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:20:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:20:11,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:11,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:11,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:11,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:11,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:11,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:12,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:12,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:12,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:12,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:13,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:13,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:13,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:13,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:15,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:15,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:15,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:16,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:16,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:20:16,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 14:20:16,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-13 14:20:16,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-13 14:20:16,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:20:16,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:20:16,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 14:20:16,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-13 14:20:16,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:20:16,740 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:20:16,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:20:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:20:16,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:16,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:20:16,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:20:16,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:20:16,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 14:20:16,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:20:16,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:20:16,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:20:16,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 14:20:16,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:20:16,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:20:16,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1967168602] [2020-10-13 14:20:16,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:20:16,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:20:16,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237983820] [2020-10-13 14:20:16,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:20:16,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:20:16,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:20:16,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:20:16,796 INFO L87 Difference]: Start difference. First operand 2718 states and 3946 transitions. Second operand 6 states. [2020-10-13 14:20:17,325 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2020-10-13 14:20:19,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:20:19,675 INFO L93 Difference]: Finished difference Result 3969 states and 5720 transitions. [2020-10-13 14:20:19,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 14:20:19,676 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2020-10-13 14:20:19,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:20:19,678 INFO L225 Difference]: With dead ends: 3969 [2020-10-13 14:20:19,678 INFO L226 Difference]: Without dead ends: 2471 [2020-10-13 14:20:19,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-13 14:20:19,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2020-10-13 14:20:19,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2411. [2020-10-13 14:20:19,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2411 states. [2020-10-13 14:20:19,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2411 states to 2411 states and 3488 transitions. [2020-10-13 14:20:19,945 INFO L78 Accepts]: Start accepts. Automaton has 2411 states and 3488 transitions. Word has length 79 [2020-10-13 14:20:19,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:20:19,946 INFO L479 AbstractCegarLoop]: Abstraction has 2411 states and 3488 transitions. [2020-10-13 14:20:19,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:20:19,946 INFO L276 IsEmpty]: Start isEmpty. Operand 2411 states and 3488 transitions. [2020-10-13 14:20:19,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 14:20:19,948 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:20:19,948 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] [2020-10-13 14:20:19,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 14:20:19,948 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]=== [2020-10-13 14:20:19,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:20:19,948 INFO L82 PathProgramCache]: Analyzing trace with hash -539568081, now seen corresponding path program 1 times [2020-10-13 14:20:19,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:20:19,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278464175] [2020-10-13 14:20:19,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:20:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:20:19,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:20,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:20,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:20,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:20,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:20,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:20,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:20,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:21,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:21,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:21,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:21,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:21,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:23,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:24,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:24,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:24,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:24,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:20:24,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 14:20:24,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-13 14:20:24,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 14:20:24,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:20:24,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:20:24,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 14:20:24,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 14:20:24,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:20:25,456 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:20:25,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:20:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:20:25,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:25,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:20:25,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:20:25,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:20:25,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 14:20:25,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:20:25,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:20:25,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:20:25,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 14:20:25,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:20:25,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:20:25,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278464175] [2020-10-13 14:20:25,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:20:25,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:20:25,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844616195] [2020-10-13 14:20:25,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:20:25,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:20:25,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:20:25,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:20:25,502 INFO L87 Difference]: Start difference. First operand 2411 states and 3488 transitions. Second operand 6 states. [2020-10-13 14:20:26,015 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-13 14:20:28,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:20:28,167 INFO L93 Difference]: Finished difference Result 3521 states and 5087 transitions. [2020-10-13 14:20:28,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 14:20:28,167 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2020-10-13 14:20:28,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:20:28,169 INFO L225 Difference]: With dead ends: 3521 [2020-10-13 14:20:28,170 INFO L226 Difference]: Without dead ends: 1961 [2020-10-13 14:20:28,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-13 14:20:28,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1961 states. [2020-10-13 14:20:28,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1961 to 1371. [2020-10-13 14:20:28,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1371 states. [2020-10-13 14:20:28,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 1953 transitions. [2020-10-13 14:20:28,402 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 1953 transitions. Word has length 79 [2020-10-13 14:20:28,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:20:28,402 INFO L479 AbstractCegarLoop]: Abstraction has 1371 states and 1953 transitions. [2020-10-13 14:20:28,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:20:28,402 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 1953 transitions. [2020-10-13 14:20:28,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 14:20:28,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:20:28,403 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] [2020-10-13 14:20:28,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 14:20:28,404 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]=== [2020-10-13 14:20:28,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:20:28,404 INFO L82 PathProgramCache]: Analyzing trace with hash -954298429, now seen corresponding path program 1 times [2020-10-13 14:20:28,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:20:28,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [992085291] [2020-10-13 14:20:28,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:20:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:20:28,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:28,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:28,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:28,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:28,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:29,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:29,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:30,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:30,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:30,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:30,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:31,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:31,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:31,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:32,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:32,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:33,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:20:33,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 14:20:33,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-13 14:20:33,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 14:20:33,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:20:33,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:20:33,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 14:20:33,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 14:20:33,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:20:33,931 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:20:33,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:20:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:20:33,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:33,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:20:33,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:20:33,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:20:33,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 14:20:33,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:20:33,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:20:33,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:20:33,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 14:20:33,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:20:33,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:20:33,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [992085291] [2020-10-13 14:20:33,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:20:33,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:20:33,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839855494] [2020-10-13 14:20:33,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:20:33,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:20:33,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:20:33,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:20:33,982 INFO L87 Difference]: Start difference. First operand 1371 states and 1953 transitions. Second operand 6 states. [2020-10-13 14:20:34,560 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-13 14:20:36,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:20:36,801 INFO L93 Difference]: Finished difference Result 2071 states and 2949 transitions. [2020-10-13 14:20:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 14:20:36,802 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2020-10-13 14:20:36,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:20:36,803 INFO L225 Difference]: With dead ends: 2071 [2020-10-13 14:20:36,803 INFO L226 Difference]: Without dead ends: 1133 [2020-10-13 14:20:36,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-13 14:20:36,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2020-10-13 14:20:36,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 751. [2020-10-13 14:20:36,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 751 states. [2020-10-13 14:20:36,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1035 transitions. [2020-10-13 14:20:36,972 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1035 transitions. Word has length 79 [2020-10-13 14:20:36,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:20:36,972 INFO L479 AbstractCegarLoop]: Abstraction has 751 states and 1035 transitions. [2020-10-13 14:20:36,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:20:36,972 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1035 transitions. [2020-10-13 14:20:36,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 14:20:36,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:20:36,973 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] [2020-10-13 14:20:36,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 14:20:36,974 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]=== [2020-10-13 14:20:36,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:20:36,974 INFO L82 PathProgramCache]: Analyzing trace with hash -567235832, now seen corresponding path program 1 times [2020-10-13 14:20:36,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:20:36,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037311218] [2020-10-13 14:20:36,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:20:36,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:20:37,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:37,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:37,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:37,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:37,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:37,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:37,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:37,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:38,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:38,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:39,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:39,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:39,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:42,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:20:42,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-13 14:20:42,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-13 14:20:42,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 14:20:42,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:20:42,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 14:20:42,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 14:20:42,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 14:20:42,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:20:42,654 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:20:42,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:20:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:20:42,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:42,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:20:42,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:20:42,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:20:42,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 14:20:42,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:20:42,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:20:42,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:20:42,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:20:42,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:20:42,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:20:42,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2037311218] [2020-10-13 14:20:42,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:20:42,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 14:20:42,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209014906] [2020-10-13 14:20:42,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 14:20:42,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:20:42,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 14:20:42,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-10-13 14:20:42,692 INFO L87 Difference]: Start difference. First operand 751 states and 1035 transitions. Second operand 11 states. [2020-10-13 14:20:43,912 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 327 DAG size of output: 326 [2020-10-13 14:20:50,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:20:50,530 INFO L93 Difference]: Finished difference Result 4003 states and 5790 transitions. [2020-10-13 14:20:50,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-13 14:20:50,531 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 80 [2020-10-13 14:20:50,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:20:50,536 INFO L225 Difference]: With dead ends: 4003 [2020-10-13 14:20:50,536 INFO L226 Difference]: Without dead ends: 3731 [2020-10-13 14:20:50,538 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=232, Invalid=958, Unknown=0, NotChecked=0, Total=1190 [2020-10-13 14:20:50,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3731 states. [2020-10-13 14:20:50,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3731 to 751. [2020-10-13 14:20:50,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 751 states. [2020-10-13 14:20:50,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1034 transitions. [2020-10-13 14:20:50,752 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1034 transitions. Word has length 80 [2020-10-13 14:20:50,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:20:50,752 INFO L479 AbstractCegarLoop]: Abstraction has 751 states and 1034 transitions. [2020-10-13 14:20:50,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 14:20:50,752 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1034 transitions. [2020-10-13 14:20:50,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 14:20:50,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:20:50,753 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:20:50,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 14:20:50,753 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]=== [2020-10-13 14:20:50,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:20:50,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1777372074, now seen corresponding path program 1 times [2020-10-13 14:20:50,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:20:50,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2071805525] [2020-10-13 14:20:50,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:20:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:20:50,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:50,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:50,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:51,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:52,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:52,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:52,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:52,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:53,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:53,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:53,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:55,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:55,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:55,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:20:55,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-13 14:20:55,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-13 14:20:55,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 14:20:55,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:20:55,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 14:20:55,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 14:20:55,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 14:20:55,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:20:56,381 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:20:56,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:20:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:20:56,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:20:56,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:20:56,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:20:56,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:20:56,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 14:20:56,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:20:56,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:20:56,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:20:56,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:20:56,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:20:56,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:20:56,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2071805525] [2020-10-13 14:20:56,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:20:56,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 14:20:56,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064305024] [2020-10-13 14:20:56,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 14:20:56,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:20:56,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 14:20:56,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-13 14:20:56,418 INFO L87 Difference]: Start difference. First operand 751 states and 1034 transitions. Second operand 10 states. [2020-10-13 14:20:56,980 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-13 14:21:01,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:21:01,321 INFO L93 Difference]: Finished difference Result 1902 states and 2694 transitions. [2020-10-13 14:21:01,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 14:21:01,322 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 80 [2020-10-13 14:21:01,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:21:01,323 INFO L225 Difference]: With dead ends: 1902 [2020-10-13 14:21:01,323 INFO L226 Difference]: Without dead ends: 1579 [2020-10-13 14:21:01,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2020-10-13 14:21:01,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2020-10-13 14:21:01,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 751. [2020-10-13 14:21:01,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 751 states. [2020-10-13 14:21:01,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1033 transitions. [2020-10-13 14:21:01,498 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1033 transitions. Word has length 80 [2020-10-13 14:21:01,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:21:01,498 INFO L479 AbstractCegarLoop]: Abstraction has 751 states and 1033 transitions. [2020-10-13 14:21:01,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 14:21:01,498 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1033 transitions. [2020-10-13 14:21:01,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 14:21:01,499 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:21:01,499 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] [2020-10-13 14:21:01,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 14:21:01,500 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]=== [2020-10-13 14:21:01,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:21:01,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1404960756, now seen corresponding path program 1 times [2020-10-13 14:21:01,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:21:01,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [916326729] [2020-10-13 14:21:01,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:21:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:21:01,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:01,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:01,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:01,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:02,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:02,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:02,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:02,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:03,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:03,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:05,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:05,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:06,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:21:06,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-13 14:21:06,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-13 14:21:06,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 14:21:06,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:21:06,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:21:06,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 14:21:06,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 14:21:06,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:21:07,087 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:21:07,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:21:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:21:07,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:07,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:21:07,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:21:07,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:21:07,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 14:21:07,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:21:07,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:21:07,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:21:07,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:21:07,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:21:07,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:21:07,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [916326729] [2020-10-13 14:21:07,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:21:07,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:21:07,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292451119] [2020-10-13 14:21:07,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:21:07,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:21:07,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:21:07,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:21:07,125 INFO L87 Difference]: Start difference. First operand 751 states and 1033 transitions. Second operand 7 states. [2020-10-13 14:21:07,680 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2020-10-13 14:21:10,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:21:10,128 INFO L93 Difference]: Finished difference Result 1391 states and 1902 transitions. [2020-10-13 14:21:10,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 14:21:10,129 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 80 [2020-10-13 14:21:10,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:21:10,130 INFO L225 Difference]: With dead ends: 1391 [2020-10-13 14:21:10,130 INFO L226 Difference]: Without dead ends: 975 [2020-10-13 14:21:10,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 14:21:10,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2020-10-13 14:21:10,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 633. [2020-10-13 14:21:10,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2020-10-13 14:21:10,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 859 transitions. [2020-10-13 14:21:10,301 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 859 transitions. Word has length 80 [2020-10-13 14:21:10,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:21:10,301 INFO L479 AbstractCegarLoop]: Abstraction has 633 states and 859 transitions. [2020-10-13 14:21:10,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:21:10,301 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 859 transitions. [2020-10-13 14:21:10,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-13 14:21:10,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:21:10,302 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] [2020-10-13 14:21:10,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 14:21:10,302 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]=== [2020-10-13 14:21:10,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:21:10,302 INFO L82 PathProgramCache]: Analyzing trace with hash -2128277897, now seen corresponding path program 1 times [2020-10-13 14:21:10,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:21:10,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1887890688] [2020-10-13 14:21:10,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:21:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:21:10,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:10,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:10,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:10,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:11,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:11,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:11,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:12,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:15,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:21:15,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-13 14:21:15,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 14:21:15,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 14:21:15,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:21:15,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 14:21:15,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 14:21:15,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 14:21:15,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:21:15,872 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:21:15,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:21:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:21:15,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:15,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:21:15,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:21:15,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:21:15,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 14:21:15,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:21:15,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:21:15,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:21:15,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:21:15,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:21:15,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:21:15,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1887890688] [2020-10-13 14:21:15,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:21:15,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 14:21:15,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800313383] [2020-10-13 14:21:15,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 14:21:15,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:21:15,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 14:21:15,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 14:21:15,913 INFO L87 Difference]: Start difference. First operand 633 states and 859 transitions. Second operand 8 states. [2020-10-13 14:21:16,445 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 312 [2020-10-13 14:21:18,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:21:18,223 INFO L93 Difference]: Finished difference Result 1172 states and 1635 transitions. [2020-10-13 14:21:18,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 14:21:18,224 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2020-10-13 14:21:18,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:21:18,225 INFO L225 Difference]: With dead ends: 1172 [2020-10-13 14:21:18,225 INFO L226 Difference]: Without dead ends: 780 [2020-10-13 14:21:18,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-13 14:21:18,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2020-10-13 14:21:18,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 481. [2020-10-13 14:21:18,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-13 14:21:18,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 651 transitions. [2020-10-13 14:21:18,441 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 651 transitions. Word has length 82 [2020-10-13 14:21:18,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:21:18,441 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 651 transitions. [2020-10-13 14:21:18,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 14:21:18,441 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 651 transitions. [2020-10-13 14:21:18,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-13 14:21:18,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:21:18,442 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] [2020-10-13 14:21:18,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 14:21:18,442 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]=== [2020-10-13 14:21:18,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:21:18,442 INFO L82 PathProgramCache]: Analyzing trace with hash -333055338, now seen corresponding path program 1 times [2020-10-13 14:21:18,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:21:18,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1153250489] [2020-10-13 14:21:18,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:21:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:21:18,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:18,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:18,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:18,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:18,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:19,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:19,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:19,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:19,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:19,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:20,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:20,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:21,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:21,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:21,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:22,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:22,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:23,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:21:23,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-13 14:21:23,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-13 14:21:23,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 14:21:23,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:21:23,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 14:21:23,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 14:21:23,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 14:21:23,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:21:24,133 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:21:24,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:21:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:21:24,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:24,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:21:24,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:21:24,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:21:24,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 14:21:24,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:21:24,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:21:24,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:21:24,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:21:24,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:21:24,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:21:24,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1153250489] [2020-10-13 14:21:24,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:21:24,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 14:21:24,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961146529] [2020-10-13 14:21:24,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 14:21:24,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:21:24,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 14:21:24,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-10-13 14:21:24,172 INFO L87 Difference]: Start difference. First operand 481 states and 651 transitions. Second operand 11 states. [2020-10-13 14:21:25,428 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 330 DAG size of output: 328 [2020-10-13 14:21:29,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:21:29,403 INFO L93 Difference]: Finished difference Result 2128 states and 3077 transitions. [2020-10-13 14:21:29,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 14:21:29,403 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 82 [2020-10-13 14:21:29,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:21:29,405 INFO L225 Difference]: With dead ends: 2128 [2020-10-13 14:21:29,405 INFO L226 Difference]: Without dead ends: 1854 [2020-10-13 14:21:29,406 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2020-10-13 14:21:29,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2020-10-13 14:21:29,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 481. [2020-10-13 14:21:29,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-13 14:21:29,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 650 transitions. [2020-10-13 14:21:29,573 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 650 transitions. Word has length 82 [2020-10-13 14:21:29,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:21:29,574 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 650 transitions. [2020-10-13 14:21:29,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 14:21:29,574 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 650 transitions. [2020-10-13 14:21:29,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-13 14:21:29,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:21:29,575 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] [2020-10-13 14:21:29,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 14:21:29,575 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]=== [2020-10-13 14:21:29,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:21:29,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1402011788, now seen corresponding path program 1 times [2020-10-13 14:21:29,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:21:29,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1552659443] [2020-10-13 14:21:29,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:21:29,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:21:29,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:29,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:29,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:29,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:30,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:30,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:31,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:31,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:31,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:32,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:32,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:32,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:32,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:33,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:33,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:33,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:34,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:34,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:21:34,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-13 14:21:34,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-13 14:21:34,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 14:21:34,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:21:34,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 14:21:34,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 14:21:34,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 14:21:34,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:21:35,266 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 14:21:35,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:21:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:21:35,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:21:35,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:21:35,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:21:35,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:21:35,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 14:21:35,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:21:35,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:21:35,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:21:35,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:21:35,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:21:35,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:21:35,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1552659443] [2020-10-13 14:21:35,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:21:35,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 14:21:35,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682808467] [2020-10-13 14:21:35,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 14:21:35,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:21:35,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 14:21:35,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-10-13 14:21:35,304 INFO L87 Difference]: Start difference. First operand 481 states and 650 transitions. Second operand 11 states. [2020-10-13 14:21:36,658 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 328 DAG size of output: 327