/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:46:43,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:46:43,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:46:43,634 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:46:43,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:46:43,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:46:43,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:46:43,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:46:43,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:46:43,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:46:43,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:46:43,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:46:43,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:46:43,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:46:43,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:46:43,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:46:43,647 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:46:43,648 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:46:43,650 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:46:43,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:46:43,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:46:43,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:46:43,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:46:43,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:46:43,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:46:43,658 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:46:43,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:46:43,659 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:46:43,660 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:46:43,661 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:46:43,661 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:46:43,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:46:43,663 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:46:43,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:46:43,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:46:43,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:46:43,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:46:43,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:46:43,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:46:43,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:46:43,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:46:43,668 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 08:46:43,690 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:46:43,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:46:43,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:46:43,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:46:43,691 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:46:43,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:46:43,692 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:46:43,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:46:43,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:46:43,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:46:43,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:46:43,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:46:43,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:46:43,693 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:46:43,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:46:43,693 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:46:43,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:46:43,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:46:43,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:46:43,694 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:46:43,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:46:43,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:46:43,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:46:43,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:46:43,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:46:43,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:46:43,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:46:43,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:46:43,696 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:46:43,696 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 08:46:43,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:46:44,003 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:46:44,006 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:46:44,008 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:46:44,009 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:46:44,010 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2020-10-14 08:46:44,071 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/776e05a5a/515d83288d97418bb6bc38d08c96cd89/FLAG2823249b8 [2020-10-14 08:46:44,828 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:46:44,829 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2020-10-14 08:46:44,865 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/776e05a5a/515d83288d97418bb6bc38d08c96cd89/FLAG2823249b8 [2020-10-14 08:46:44,920 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/776e05a5a/515d83288d97418bb6bc38d08c96cd89 [2020-10-14 08:46:44,931 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:46:44,933 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:46:44,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:46:44,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:46:44,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:46:44,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:46:44" (1/1) ... [2020-10-14 08:46:44,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@335959a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:44, skipping insertion in model container [2020-10-14 08:46:44,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:46:44" (1/1) ... [2020-10-14 08:46:44,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:46:45,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:46:46,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:46:46,431 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:46:47,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:46:47,220 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:46:47,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:47 WrapperNode [2020-10-14 08:46:47,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:46:47,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:46:47,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:46:47,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:46:47,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:47" (1/1) ... [2020-10-14 08:46:47,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:47" (1/1) ... [2020-10-14 08:46:47,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:47" (1/1) ... [2020-10-14 08:46:47,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:47" (1/1) ... [2020-10-14 08:46:47,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:47" (1/1) ... [2020-10-14 08:46:47,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:47" (1/1) ... [2020-10-14 08:46:47,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:47" (1/1) ... [2020-10-14 08:46:47,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:46:47,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:46:47,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:46:47,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:46:47,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:46:47,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:46:47,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:46:47,610 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:46:47,610 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:46:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:46:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:46:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:46:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:46:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:46:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:46:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:46:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:46:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:46:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:46:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:46:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 08:46:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-14 08:46:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:46:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:46:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:46:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:46:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:46:50,745 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:46:50,746 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 08:46:50,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:46:50 BoogieIcfgContainer [2020-10-14 08:46:50,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:46:50,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:46:50,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:46:50,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:46:50,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:46:44" (1/3) ... [2020-10-14 08:46:50,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd924ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:46:50, skipping insertion in model container [2020-10-14 08:46:50,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:47" (2/3) ... [2020-10-14 08:46:50,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd924ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:46:50, skipping insertion in model container [2020-10-14 08:46:50,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:46:50" (3/3) ... [2020-10-14 08:46:50,767 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2020-10-14 08:46:50,780 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:46:50,789 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-10-14 08:46:50,805 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-10-14 08:46:50,838 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:46:50,838 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:46:50,838 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:46:50,838 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:46:50,839 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:46:50,839 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:46:50,839 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:46:50,839 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:46:50,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states. [2020-10-14 08:46:50,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-14 08:46:50,908 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:46:50,909 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] [2020-10-14 08:46:50,910 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]=== [2020-10-14 08:46:50,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:46:50,917 INFO L82 PathProgramCache]: Analyzing trace with hash 552165333, now seen corresponding path program 1 times [2020-10-14 08:46:50,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:46:50,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [138306612] [2020-10-14 08:46:50,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:46:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:51,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:51,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:51,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:52,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:54,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:54,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:55,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:55,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:56,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:56,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 08:46:56,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:46:56,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 08:46:56,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:56,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:56,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:46:56,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:46:56,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-14 08:46:56,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 08:46:58,112 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-14 08:46:58,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:46:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:58,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:58,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:58,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:46:58,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:46:58,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 08:46:58,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:58,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:58,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:46:58,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:46:58,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:46:58,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:46:58,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:46:58,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [138306612] [2020-10-14 08:46:58,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:46:58,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:46:58,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654172314] [2020-10-14 08:46:58,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:46:58,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:46:58,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:46:58,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:46:58,298 INFO L87 Difference]: Start difference. First operand 1198 states. Second operand 6 states. [2020-10-14 08:46:59,829 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 565 [2020-10-14 08:47:09,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:47:09,958 INFO L93 Difference]: Finished difference Result 1636 states and 2788 transitions. [2020-10-14 08:47:09,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:47:09,961 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2020-10-14 08:47:09,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:47:09,988 INFO L225 Difference]: With dead ends: 1636 [2020-10-14 08:47:09,988 INFO L226 Difference]: Without dead ends: 1066 [2020-10-14 08:47:09,997 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:47:10,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-10-14 08:47:10,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-10-14 08:47:10,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-10-14 08:47:10,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1346 transitions. [2020-10-14 08:47:10,129 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1346 transitions. Word has length 77 [2020-10-14 08:47:10,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:47:10,130 INFO L479 AbstractCegarLoop]: Abstraction has 1066 states and 1346 transitions. [2020-10-14 08:47:10,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:47:10,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1346 transitions. [2020-10-14 08:47:10,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-14 08:47:10,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:47:10,135 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] [2020-10-14 08:47:10,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:47:10,136 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]=== [2020-10-14 08:47:10,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:47:10,137 INFO L82 PathProgramCache]: Analyzing trace with hash 2047106506, now seen corresponding path program 1 times [2020-10-14 08:47:10,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:47:10,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996248074] [2020-10-14 08:47:10,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:47:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:47:10,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:10,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:10,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:10,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:11,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:15,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:47:15,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 08:47:15,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:47:15,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-14 08:47:15,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:47:15,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:47:15,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:47:15,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:47:15,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-14 08:47:15,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:47:16,737 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-14 08:47:16,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:47:16,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:47:16,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:16,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:47:16,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:47:16,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:47:16,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 08:47:16,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:47:16,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:47:16,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:47:16,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:47:16,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:47:16,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:47:16,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:47:16,876 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996248074] [2020-10-14 08:47:16,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:47:16,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:47:16,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027237655] [2020-10-14 08:47:16,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:47:16,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:47:16,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:47:16,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:47:16,879 INFO L87 Difference]: Start difference. First operand 1066 states and 1346 transitions. Second operand 6 states. [2020-10-14 08:47:18,352 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 568 [2020-10-14 08:47:23,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:47:23,344 INFO L93 Difference]: Finished difference Result 1405 states and 1762 transitions. [2020-10-14 08:47:23,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:47:23,345 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2020-10-14 08:47:23,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:47:23,352 INFO L225 Difference]: With dead ends: 1405 [2020-10-14 08:47:23,353 INFO L226 Difference]: Without dead ends: 891 [2020-10-14 08:47:23,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:47:23,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2020-10-14 08:47:23,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 825. [2020-10-14 08:47:23,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2020-10-14 08:47:23,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1058 transitions. [2020-10-14 08:47:23,406 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1058 transitions. Word has length 77 [2020-10-14 08:47:23,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:47:23,406 INFO L479 AbstractCegarLoop]: Abstraction has 825 states and 1058 transitions. [2020-10-14 08:47:23,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:47:23,406 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1058 transitions. [2020-10-14 08:47:23,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-14 08:47:23,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:47:23,409 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] [2020-10-14 08:47:23,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:47:23,409 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]=== [2020-10-14 08:47:23,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:47:23,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1219828783, now seen corresponding path program 1 times [2020-10-14 08:47:23,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:47:23,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [88354773] [2020-10-14 08:47:23,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:47:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:47:23,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:23,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:23,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:23,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:23,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:24,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:25,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:26,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:28,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:47:28,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 08:47:28,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:47:28,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 08:47:28,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:47:28,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:47:28,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:47:28,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:47:28,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-14 08:47:28,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:47:30,163 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-14 08:47:30,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:47:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:47:30,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:30,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:47:30,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:47:30,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:47:30,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 08:47:30,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:47:30,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:47:30,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:47:30,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:47:30,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:47:30,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:47:30,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:47:30,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [88354773] [2020-10-14 08:47:30,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:47:30,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:47:30,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544873604] [2020-10-14 08:47:30,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:47:30,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:47:30,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:47:30,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:47:30,263 INFO L87 Difference]: Start difference. First operand 825 states and 1058 transitions. Second operand 6 states. [2020-10-14 08:47:31,660 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 560 [2020-10-14 08:47:39,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:47:39,529 INFO L93 Difference]: Finished difference Result 2262 states and 3047 transitions. [2020-10-14 08:47:39,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 08:47:39,530 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2020-10-14 08:47:39,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:47:39,542 INFO L225 Difference]: With dead ends: 2262 [2020-10-14 08:47:39,543 INFO L226 Difference]: Without dead ends: 2109 [2020-10-14 08:47:39,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:47:39,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2109 states. [2020-10-14 08:47:39,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2109 to 1683. [2020-10-14 08:47:39,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1683 states. [2020-10-14 08:47:39,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2288 transitions. [2020-10-14 08:47:39,639 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2288 transitions. Word has length 77 [2020-10-14 08:47:39,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:47:39,640 INFO L479 AbstractCegarLoop]: Abstraction has 1683 states and 2288 transitions. [2020-10-14 08:47:39,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:47:39,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2288 transitions. [2020-10-14 08:47:39,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-14 08:47:39,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:47:39,644 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] [2020-10-14 08:47:39,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:47:39,645 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]=== [2020-10-14 08:47:39,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:47:39,645 INFO L82 PathProgramCache]: Analyzing trace with hash 255813070, now seen corresponding path program 1 times [2020-10-14 08:47:39,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:47:39,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [688345029] [2020-10-14 08:47:39,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:47:39,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:47:39,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:39,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:40,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:40,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:40,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:40,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:41,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:41,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:41,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:42,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:43,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:44,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:44,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:47:44,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 08:47:44,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 08:47:44,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:47:44,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:47:44,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:47:44,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:47:44,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:47:44,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 08:47:44,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:47:46,151 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-14 08:47:46,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:47:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:47:46,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:46,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:47:46,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:47:46,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:47:46,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 08:47:46,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:47:46,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:47:46,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:47:46,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:47:46,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:47:46,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:47:46,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:47:46,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [688345029] [2020-10-14 08:47:46,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:47:46,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:47:46,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705583037] [2020-10-14 08:47:46,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:47:46,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:47:46,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:47:46,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:47:46,275 INFO L87 Difference]: Start difference. First operand 1683 states and 2288 transitions. Second operand 6 states. [2020-10-14 08:47:47,686 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 567 [2020-10-14 08:47:51,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:47:51,238 INFO L93 Difference]: Finished difference Result 3241 states and 4520 transitions. [2020-10-14 08:47:51,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:47:51,238 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2020-10-14 08:47:51,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:47:51,249 INFO L225 Difference]: With dead ends: 3241 [2020-10-14 08:47:51,249 INFO L226 Difference]: Without dead ends: 2287 [2020-10-14 08:47:51,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:47:51,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2287 states. [2020-10-14 08:47:51,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2287 to 2221. [2020-10-14 08:47:51,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2221 states. [2020-10-14 08:47:51,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 3124 transitions. [2020-10-14 08:47:51,365 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 3124 transitions. Word has length 79 [2020-10-14 08:47:51,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:47:51,365 INFO L479 AbstractCegarLoop]: Abstraction has 2221 states and 3124 transitions. [2020-10-14 08:47:51,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:47:51,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 3124 transitions. [2020-10-14 08:47:51,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-14 08:47:51,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:47:51,368 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] [2020-10-14 08:47:51,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:47:51,369 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]=== [2020-10-14 08:47:51,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:47:51,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1272103748, now seen corresponding path program 1 times [2020-10-14 08:47:51,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:47:51,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521908884] [2020-10-14 08:47:51,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:47:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:47:51,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:51,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:51,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:51,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:52,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:53,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:54,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:56,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:47:56,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 08:47:56,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:47:56,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-14 08:47:56,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:47:56,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:47:56,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:47:56,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:47:56,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 08:47:56,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:47:57,837 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-14 08:47:57,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:47:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:47:57,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:47:57,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:47:57,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:47:57,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:47:57,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:47:57,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:47:57,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:47:57,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:47:57,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:47:57,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:47:57,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:47:57,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:47:57,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521908884] [2020-10-14 08:47:57,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:47:57,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:47:57,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19310654] [2020-10-14 08:47:57,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:47:57,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:47:57,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:47:57,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:47:57,900 INFO L87 Difference]: Start difference. First operand 2221 states and 3124 transitions. Second operand 7 states. [2020-10-14 08:47:59,344 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 569 [2020-10-14 08:48:03,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:48:03,699 INFO L93 Difference]: Finished difference Result 5181 states and 7400 transitions. [2020-10-14 08:48:03,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:48:03,700 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-10-14 08:48:03,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:48:03,722 INFO L225 Difference]: With dead ends: 5181 [2020-10-14 08:48:03,722 INFO L226 Difference]: Without dead ends: 4622 [2020-10-14 08:48:03,725 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:48:03,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4622 states. [2020-10-14 08:48:03,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4622 to 2214. [2020-10-14 08:48:03,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2214 states. [2020-10-14 08:48:03,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2214 states to 2214 states and 3116 transitions. [2020-10-14 08:48:03,888 INFO L78 Accepts]: Start accepts. Automaton has 2214 states and 3116 transitions. Word has length 79 [2020-10-14 08:48:03,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:48:03,889 INFO L479 AbstractCegarLoop]: Abstraction has 2214 states and 3116 transitions. [2020-10-14 08:48:03,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:48:03,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2214 states and 3116 transitions. [2020-10-14 08:48:03,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-14 08:48:03,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:48:03,892 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] [2020-10-14 08:48:03,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:48:03,893 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]=== [2020-10-14 08:48:03,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:48:03,893 INFO L82 PathProgramCache]: Analyzing trace with hash -693158684, now seen corresponding path program 1 times [2020-10-14 08:48:03,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:48:03,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1097505004] [2020-10-14 08:48:03,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:48:03,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:48:03,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:04,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:04,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:05,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:05,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:05,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:06,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:06,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:07,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:08,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:48:08,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 08:48:08,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 08:48:08,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 08:48:08,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:48:08,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:48:08,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:48:08,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:48:08,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 08:48:08,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:48:10,401 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-14 08:48:10,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:48:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:48:10,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:10,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:48:10,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:48:10,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:48:10,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 08:48:10,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:48:10,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:48:10,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:48:10,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:48:10,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:48:10,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:48:10,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:48:10,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1097505004] [2020-10-14 08:48:10,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:48:10,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:48:10,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85785521] [2020-10-14 08:48:10,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:48:10,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:48:10,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:48:10,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:48:10,458 INFO L87 Difference]: Start difference. First operand 2214 states and 3116 transitions. Second operand 6 states. [2020-10-14 08:48:11,812 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 560 [2020-10-14 08:48:17,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:48:17,383 INFO L93 Difference]: Finished difference Result 3453 states and 4860 transitions. [2020-10-14 08:48:17,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 08:48:17,383 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2020-10-14 08:48:17,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:48:17,395 INFO L225 Difference]: With dead ends: 3453 [2020-10-14 08:48:17,395 INFO L226 Difference]: Without dead ends: 2908 [2020-10-14 08:48:17,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:48:17,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2020-10-14 08:48:17,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 2209. [2020-10-14 08:48:17,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2209 states. [2020-10-14 08:48:17,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 3110 transitions. [2020-10-14 08:48:17,528 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 3110 transitions. Word has length 79 [2020-10-14 08:48:17,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:48:17,529 INFO L479 AbstractCegarLoop]: Abstraction has 2209 states and 3110 transitions. [2020-10-14 08:48:17,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:48:17,529 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 3110 transitions. [2020-10-14 08:48:17,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-14 08:48:17,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:48:17,532 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] [2020-10-14 08:48:17,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:48:17,533 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]=== [2020-10-14 08:48:17,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:48:17,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1681159503, now seen corresponding path program 1 times [2020-10-14 08:48:17,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:48:17,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [355929915] [2020-10-14 08:48:17,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:48:17,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:48:17,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:17,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:17,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:18,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:18,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:18,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:18,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:19,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:19,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:19,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:22,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:22,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:48:22,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 08:48:22,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:48:22,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 08:48:22,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:48:22,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:48:22,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:48:22,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:48:22,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 08:48:22,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:48:24,077 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-14 08:48:24,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:48:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:48:24,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:24,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:48:24,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:48:24,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:48:24,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:48:24,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:48:24,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:48:24,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:48:24,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:48:24,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:48:24,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:48:24,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:48:24,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [355929915] [2020-10-14 08:48:24,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:48:24,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:48:24,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345742142] [2020-10-14 08:48:24,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:48:24,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:48:24,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:48:24,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:48:24,143 INFO L87 Difference]: Start difference. First operand 2209 states and 3110 transitions. Second operand 7 states. [2020-10-14 08:48:25,566 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 569 [2020-10-14 08:48:29,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:48:29,963 INFO L93 Difference]: Finished difference Result 6794 states and 9823 transitions. [2020-10-14 08:48:29,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:48:29,963 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-10-14 08:48:29,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:48:29,982 INFO L225 Difference]: With dead ends: 6794 [2020-10-14 08:48:29,982 INFO L226 Difference]: Without dead ends: 5696 [2020-10-14 08:48:29,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:48:29,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5696 states. [2020-10-14 08:48:30,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5696 to 2196. [2020-10-14 08:48:30,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2196 states. [2020-10-14 08:48:30,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 3093 transitions. [2020-10-14 08:48:30,154 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 3093 transitions. Word has length 81 [2020-10-14 08:48:30,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:48:30,154 INFO L479 AbstractCegarLoop]: Abstraction has 2196 states and 3093 transitions. [2020-10-14 08:48:30,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:48:30,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 3093 transitions. [2020-10-14 08:48:30,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-14 08:48:30,158 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:48:30,158 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] [2020-10-14 08:48:30,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:48:30,158 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]=== [2020-10-14 08:48:30,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:48:30,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1974647283, now seen corresponding path program 1 times [2020-10-14 08:48:30,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:48:30,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1840791289] [2020-10-14 08:48:30,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:48:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:48:30,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:30,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:30,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:30,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:31,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:31,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:31,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:32,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:32,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:33,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:33,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:34,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:34,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:34,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:35,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:48:35,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 08:48:35,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:48:35,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 08:48:35,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:48:35,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:48:35,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:48:35,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 08:48:35,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 08:48:35,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:48:36,767 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-14 08:48:36,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:48:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:48:36,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:36,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:48:36,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:48:36,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:48:36,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 08:48:36,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:48:36,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:48:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:48:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:48:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:48:36,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:48:36,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:48:36,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1840791289] [2020-10-14 08:48:36,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:48:36,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:48:36,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169143215] [2020-10-14 08:48:36,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:48:36,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:48:36,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:48:36,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:48:36,835 INFO L87 Difference]: Start difference. First operand 2196 states and 3093 transitions. Second operand 6 states. [2020-10-14 08:48:38,195 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 560 [2020-10-14 08:48:43,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:48:43,711 INFO L93 Difference]: Finished difference Result 8896 states and 13086 transitions. [2020-10-14 08:48:43,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 08:48:43,712 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 81 [2020-10-14 08:48:43,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:48:43,747 INFO L225 Difference]: With dead ends: 8896 [2020-10-14 08:48:43,747 INFO L226 Difference]: Without dead ends: 7868 [2020-10-14 08:48:43,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:48:43,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7868 states. [2020-10-14 08:48:44,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7868 to 5716. [2020-10-14 08:48:44,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5716 states. [2020-10-14 08:48:44,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5716 states to 5716 states and 8350 transitions. [2020-10-14 08:48:44,189 INFO L78 Accepts]: Start accepts. Automaton has 5716 states and 8350 transitions. Word has length 81 [2020-10-14 08:48:44,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:48:44,189 INFO L479 AbstractCegarLoop]: Abstraction has 5716 states and 8350 transitions. [2020-10-14 08:48:44,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:48:44,189 INFO L276 IsEmpty]: Start isEmpty. Operand 5716 states and 8350 transitions. [2020-10-14 08:48:44,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-14 08:48:44,194 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:48:44,194 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] [2020-10-14 08:48:44,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:48:44,194 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]=== [2020-10-14 08:48:44,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:48:44,195 INFO L82 PathProgramCache]: Analyzing trace with hash -801696751, now seen corresponding path program 1 times [2020-10-14 08:48:44,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:48:44,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [807544945] [2020-10-14 08:48:44,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:48:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:48:44,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:44,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:44,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:44,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:45,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:45,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:45,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:46,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:46,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:46,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:46,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:47,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:47,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:48,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:49,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:48:49,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 08:48:49,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:48:49,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 08:48:49,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:48:49,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:48:49,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:48:49,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:48:49,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 08:48:49,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:48:50,762 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-14 08:48:50,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:48:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:48:50,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:50,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:48:50,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:48:50,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:48:50,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 08:48:50,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:48:50,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:48:50,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:48:50,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:48:50,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:48:50,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:48:50,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:48:50,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [807544945] [2020-10-14 08:48:50,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:48:50,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:48:50,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244885927] [2020-10-14 08:48:50,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:48:50,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:48:50,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:48:50,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:48:50,849 INFO L87 Difference]: Start difference. First operand 5716 states and 8350 transitions. Second operand 6 states. [2020-10-14 08:48:52,291 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 567 [2020-10-14 08:48:55,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:48:55,461 INFO L93 Difference]: Finished difference Result 7782 states and 11422 transitions. [2020-10-14 08:48:55,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:48:55,466 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 81 [2020-10-14 08:48:55,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:48:55,490 INFO L225 Difference]: With dead ends: 7782 [2020-10-14 08:48:55,491 INFO L226 Difference]: Without dead ends: 4497 [2020-10-14 08:48:55,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:48:55,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4497 states. [2020-10-14 08:48:55,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4497 to 3462. [2020-10-14 08:48:55,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3462 states. [2020-10-14 08:48:55,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3462 states to 3462 states and 4971 transitions. [2020-10-14 08:48:55,750 INFO L78 Accepts]: Start accepts. Automaton has 3462 states and 4971 transitions. Word has length 81 [2020-10-14 08:48:55,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:48:55,750 INFO L479 AbstractCegarLoop]: Abstraction has 3462 states and 4971 transitions. [2020-10-14 08:48:55,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:48:55,751 INFO L276 IsEmpty]: Start isEmpty. Operand 3462 states and 4971 transitions. [2020-10-14 08:48:55,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-14 08:48:55,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:48:55,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:48:55,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:48:55,755 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]=== [2020-10-14 08:48:55,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:48:55,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1148273336, now seen corresponding path program 1 times [2020-10-14 08:48:55,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:48:55,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [876409962] [2020-10-14 08:48:55,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:48:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:48:55,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:55,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:55,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:56,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:56,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:56,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:56,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:57,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:58,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:58,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:58,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:59,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:48:59,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:00,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:49:00,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 08:49:00,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 08:49:00,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:49:00,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:49:00,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:49:00,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:49:00,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:49:00,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 08:49:00,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:49:02,230 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-14 08:49:02,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:49:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:49:02,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:02,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:49:02,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:49:02,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:49:02,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:49:02,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:49:02,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:49:02,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:49:02,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:49:02,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:49:02,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:49:02,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:49:02,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [876409962] [2020-10-14 08:49:02,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:49:02,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:49:02,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339252587] [2020-10-14 08:49:02,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:49:02,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:49:02,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:49:02,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:49:02,289 INFO L87 Difference]: Start difference. First operand 3462 states and 4971 transitions. Second operand 7 states. [2020-10-14 08:49:03,749 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 569 [2020-10-14 08:49:08,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:49:08,056 INFO L93 Difference]: Finished difference Result 8812 states and 12798 transitions. [2020-10-14 08:49:08,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:49:08,056 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-10-14 08:49:08,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:49:08,074 INFO L225 Difference]: With dead ends: 8812 [2020-10-14 08:49:08,074 INFO L226 Difference]: Without dead ends: 7677 [2020-10-14 08:49:08,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:49:08,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7677 states. [2020-10-14 08:49:08,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7677 to 3335. [2020-10-14 08:49:08,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3335 states. [2020-10-14 08:49:08,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3335 states to 3335 states and 4799 transitions. [2020-10-14 08:49:08,388 INFO L78 Accepts]: Start accepts. Automaton has 3335 states and 4799 transitions. Word has length 81 [2020-10-14 08:49:08,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:49:08,389 INFO L479 AbstractCegarLoop]: Abstraction has 3335 states and 4799 transitions. [2020-10-14 08:49:08,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:49:08,389 INFO L276 IsEmpty]: Start isEmpty. Operand 3335 states and 4799 transitions. [2020-10-14 08:49:08,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-14 08:49:08,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:49:08,395 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] [2020-10-14 08:49:08,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:49:08,396 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]=== [2020-10-14 08:49:08,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:49:08,396 INFO L82 PathProgramCache]: Analyzing trace with hash 2060716884, now seen corresponding path program 1 times [2020-10-14 08:49:08,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:49:08,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [638339225] [2020-10-14 08:49:08,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:49:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:49:08,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:08,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:08,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:08,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:09,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:09,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:10,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:10,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:11,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:11,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:11,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:12,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:12,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:13,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:49:13,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 08:49:13,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 08:49:13,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 08:49:13,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:49:13,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:49:13,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:49:13,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:49:13,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 08:49:13,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:49:14,844 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-14 08:49:14,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:49:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:49:14,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:14,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:49:14,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:49:14,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:49:14,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:49:14,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:49:14,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:49:14,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:49:14,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:49:14,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:49:14,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:49:14,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:49:14,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [638339225] [2020-10-14 08:49:14,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:49:14,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:49:14,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000547192] [2020-10-14 08:49:14,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:49:14,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:49:14,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:49:14,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:49:14,898 INFO L87 Difference]: Start difference. First operand 3335 states and 4799 transitions. Second operand 6 states. [2020-10-14 08:49:16,275 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 560 [2020-10-14 08:49:21,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:49:21,320 INFO L93 Difference]: Finished difference Result 5408 states and 7841 transitions. [2020-10-14 08:49:21,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 08:49:21,320 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 81 [2020-10-14 08:49:21,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:49:21,331 INFO L225 Difference]: With dead ends: 5408 [2020-10-14 08:49:21,332 INFO L226 Difference]: Without dead ends: 4300 [2020-10-14 08:49:21,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:49:21,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4300 states. [2020-10-14 08:49:21,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4300 to 3220. [2020-10-14 08:49:21,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3220 states. [2020-10-14 08:49:21,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3220 states to 3220 states and 4636 transitions. [2020-10-14 08:49:21,591 INFO L78 Accepts]: Start accepts. Automaton has 3220 states and 4636 transitions. Word has length 81 [2020-10-14 08:49:21,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:49:21,592 INFO L479 AbstractCegarLoop]: Abstraction has 3220 states and 4636 transitions. [2020-10-14 08:49:21,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:49:21,592 INFO L276 IsEmpty]: Start isEmpty. Operand 3220 states and 4636 transitions. [2020-10-14 08:49:21,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-14 08:49:21,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:49:21,595 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:49:21,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 08:49:21,596 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]=== [2020-10-14 08:49:21,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:49:21,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1335246191, now seen corresponding path program 1 times [2020-10-14 08:49:21,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:49:21,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771214] [2020-10-14 08:49:21,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:49:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:49:21,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:21,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:21,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:22,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:22,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:22,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:22,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:26,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:26,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:26,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:49:26,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 08:49:26,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 08:49:26,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:49:26,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:49:26,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:49:26,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:49:26,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:49:26,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 08:49:26,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:49:28,014 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-14 08:49:28,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:49:28,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:49:28,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:28,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:49:28,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:49:28,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:49:28,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:49:28,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:49:28,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:49:28,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:49:28,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:49:28,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:49:28,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:49:28,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:49:28,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771214] [2020-10-14 08:49:28,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:49:28,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 08:49:28,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779869136] [2020-10-14 08:49:28,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 08:49:28,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:49:28,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 08:49:28,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:49:28,070 INFO L87 Difference]: Start difference. First operand 3220 states and 4636 transitions. Second operand 8 states. [2020-10-14 08:49:29,481 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 571 [2020-10-14 08:49:33,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:49:33,326 INFO L93 Difference]: Finished difference Result 9303 states and 13750 transitions. [2020-10-14 08:49:33,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 08:49:33,327 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-10-14 08:49:33,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:49:33,338 INFO L225 Difference]: With dead ends: 9303 [2020-10-14 08:49:33,338 INFO L226 Difference]: Without dead ends: 7290 [2020-10-14 08:49:33,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:49:33,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7290 states. [2020-10-14 08:49:33,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7290 to 3220. [2020-10-14 08:49:33,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3220 states. [2020-10-14 08:49:33,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3220 states to 3220 states and 4631 transitions. [2020-10-14 08:49:33,619 INFO L78 Accepts]: Start accepts. Automaton has 3220 states and 4631 transitions. Word has length 83 [2020-10-14 08:49:33,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:49:33,620 INFO L479 AbstractCegarLoop]: Abstraction has 3220 states and 4631 transitions. [2020-10-14 08:49:33,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 08:49:33,620 INFO L276 IsEmpty]: Start isEmpty. Operand 3220 states and 4631 transitions. [2020-10-14 08:49:33,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-14 08:49:33,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:49:33,623 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:49:33,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 08:49:33,623 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]=== [2020-10-14 08:49:33,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:49:33,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1148338801, now seen corresponding path program 1 times [2020-10-14 08:49:33,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:49:33,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [953623067] [2020-10-14 08:49:33,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:49:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:49:33,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:33,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:33,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:33,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:34,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:36,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:38,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:49:38,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 08:49:38,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:49:38,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 08:49:38,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:49:38,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:49:38,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:49:38,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:49:38,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 08:49:38,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:49:40,150 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-14 08:49:40,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:49:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:49:40,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:40,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:49:40,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:49:40,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:49:40,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 08:49:40,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:49:40,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:49:40,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:49:40,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:49:40,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:49:40,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:49:40,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:49:40,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [953623067] [2020-10-14 08:49:40,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:49:40,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:49:40,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720252897] [2020-10-14 08:49:40,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:49:40,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:49:40,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:49:40,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:49:40,242 INFO L87 Difference]: Start difference. First operand 3220 states and 4631 transitions. Second operand 9 states. [2020-10-14 08:49:41,722 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 580 [2020-10-14 08:49:46,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:49:46,166 INFO L93 Difference]: Finished difference Result 9156 states and 13580 transitions. [2020-10-14 08:49:46,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:49:46,167 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-10-14 08:49:46,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:49:46,178 INFO L225 Difference]: With dead ends: 9156 [2020-10-14 08:49:46,179 INFO L226 Difference]: Without dead ends: 7021 [2020-10-14 08:49:46,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:49:46,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7021 states. [2020-10-14 08:49:46,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7021 to 3047. [2020-10-14 08:49:46,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3047 states. [2020-10-14 08:49:46,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3047 states to 3047 states and 4386 transitions. [2020-10-14 08:49:46,507 INFO L78 Accepts]: Start accepts. Automaton has 3047 states and 4386 transitions. Word has length 83 [2020-10-14 08:49:46,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:49:46,508 INFO L479 AbstractCegarLoop]: Abstraction has 3047 states and 4386 transitions. [2020-10-14 08:49:46,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:49:46,508 INFO L276 IsEmpty]: Start isEmpty. Operand 3047 states and 4386 transitions. [2020-10-14 08:49:46,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-14 08:49:46,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:49:46,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:49:46,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 08:49:46,511 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]=== [2020-10-14 08:49:46,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:49:46,511 INFO L82 PathProgramCache]: Analyzing trace with hash 288009009, now seen corresponding path program 1 times [2020-10-14 08:49:46,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:49:46,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2141134860] [2020-10-14 08:49:46,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:49:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:49:46,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:46,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:46,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:47,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:47,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:47,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:48,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:49,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:49,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:51,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:49:51,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 08:49:51,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 08:49:51,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 08:49:51,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:49:51,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:49:51,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:49:51,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:49:51,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 08:49:51,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:49:53,032 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-14 08:49:53,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:49:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:49:53,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:53,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:49:53,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:49:53,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:49:53,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:49:53,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:49:53,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:49:53,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:49:53,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:49:53,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:49:53,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:49:53,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:49:53,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2141134860] [2020-10-14 08:49:53,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:49:53,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 08:49:53,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907290528] [2020-10-14 08:49:53,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 08:49:53,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:49:53,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 08:49:53,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:49:53,093 INFO L87 Difference]: Start difference. First operand 3047 states and 4386 transitions. Second operand 8 states. [2020-10-14 08:49:54,583 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 571 [2020-10-14 08:49:59,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:49:59,103 INFO L93 Difference]: Finished difference Result 9274 states and 13688 transitions. [2020-10-14 08:49:59,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 08:49:59,104 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-10-14 08:49:59,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:49:59,111 INFO L225 Difference]: With dead ends: 9274 [2020-10-14 08:49:59,111 INFO L226 Difference]: Without dead ends: 7085 [2020-10-14 08:49:59,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:49:59,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7085 states. [2020-10-14 08:49:59,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7085 to 3047. [2020-10-14 08:49:59,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3047 states. [2020-10-14 08:49:59,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3047 states to 3047 states and 4381 transitions. [2020-10-14 08:49:59,452 INFO L78 Accepts]: Start accepts. Automaton has 3047 states and 4381 transitions. Word has length 83 [2020-10-14 08:49:59,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:49:59,452 INFO L479 AbstractCegarLoop]: Abstraction has 3047 states and 4381 transitions. [2020-10-14 08:49:59,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 08:49:59,452 INFO L276 IsEmpty]: Start isEmpty. Operand 3047 states and 4381 transitions. [2020-10-14 08:49:59,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-14 08:49:59,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:49:59,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:49:59,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 08:49:59,456 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]=== [2020-10-14 08:49:59,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:49:59,456 INFO L82 PathProgramCache]: Analyzing trace with hash -727293839, now seen corresponding path program 1 times [2020-10-14 08:49:59,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:49:59,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [892294702] [2020-10-14 08:49:59,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:49:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:49:59,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:59,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:49:59,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:00,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:00,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:01,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:01,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:01,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:01,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:02,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:02,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:02,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:04,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:04,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:04,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:04,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:50:04,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 08:50:04,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 08:50:04,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 08:50:04,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:50:04,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:50:04,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:50:04,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:50:04,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 08:50:04,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:50:05,911 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-14 08:50:05,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:50:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:50:05,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:05,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:50:05,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:50:05,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:50:05,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:50:05,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:50:05,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:50:05,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:50:05,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:50:05,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:50:05,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:50:05,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:50:05,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [892294702] [2020-10-14 08:50:05,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:50:05,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 08:50:05,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609246663] [2020-10-14 08:50:05,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 08:50:05,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:50:05,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 08:50:05,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:50:05,967 INFO L87 Difference]: Start difference. First operand 3047 states and 4381 transitions. Second operand 8 states. [2020-10-14 08:50:07,401 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 571 [2020-10-14 08:50:12,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:50:12,017 INFO L93 Difference]: Finished difference Result 7136 states and 10477 transitions. [2020-10-14 08:50:12,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 08:50:12,018 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-10-14 08:50:12,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:50:12,025 INFO L225 Difference]: With dead ends: 7136 [2020-10-14 08:50:12,026 INFO L226 Difference]: Without dead ends: 7117 [2020-10-14 08:50:12,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:50:12,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7117 states. [2020-10-14 08:50:12,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7117 to 3047. [2020-10-14 08:50:12,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3047 states. [2020-10-14 08:50:12,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3047 states to 3047 states and 4377 transitions. [2020-10-14 08:50:12,346 INFO L78 Accepts]: Start accepts. Automaton has 3047 states and 4377 transitions. Word has length 83 [2020-10-14 08:50:12,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:50:12,346 INFO L479 AbstractCegarLoop]: Abstraction has 3047 states and 4377 transitions. [2020-10-14 08:50:12,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 08:50:12,346 INFO L276 IsEmpty]: Start isEmpty. Operand 3047 states and 4377 transitions. [2020-10-14 08:50:12,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-14 08:50:12,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:50:12,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:50:12,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 08:50:12,348 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]=== [2020-10-14 08:50:12,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:50:12,348 INFO L82 PathProgramCache]: Analyzing trace with hash 121221329, now seen corresponding path program 1 times [2020-10-14 08:50:12,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:50:12,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352389621] [2020-10-14 08:50:12,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:50:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:50:12,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:12,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:12,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:13,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:13,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:14,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:14,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:14,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:15,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:15,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:15,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:17,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:50:17,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 08:50:17,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:50:17,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 08:50:17,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:50:17,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:50:17,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:50:17,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:50:17,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 08:50:17,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:50:18,752 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-14 08:50:18,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:50:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:50:18,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:18,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:50:18,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:50:18,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:50:18,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:50:18,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:50:18,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:50:18,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:50:18,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:50:18,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:50:18,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:50:18,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:50:18,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1352389621] [2020-10-14 08:50:18,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:50:18,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 08:50:18,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725858250] [2020-10-14 08:50:18,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 08:50:18,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:50:18,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 08:50:18,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:50:18,811 INFO L87 Difference]: Start difference. First operand 3047 states and 4377 transitions. Second operand 8 states. [2020-10-14 08:50:20,163 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 571 [2020-10-14 08:50:24,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:50:24,444 INFO L93 Difference]: Finished difference Result 9096 states and 13449 transitions. [2020-10-14 08:50:24,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 08:50:24,444 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-10-14 08:50:24,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:50:24,451 INFO L225 Difference]: With dead ends: 9096 [2020-10-14 08:50:24,451 INFO L226 Difference]: Without dead ends: 7085 [2020-10-14 08:50:24,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:50:24,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7085 states. [2020-10-14 08:50:24,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7085 to 3047. [2020-10-14 08:50:24,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3047 states. [2020-10-14 08:50:24,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3047 states to 3047 states and 4375 transitions. [2020-10-14 08:50:24,735 INFO L78 Accepts]: Start accepts. Automaton has 3047 states and 4375 transitions. Word has length 83 [2020-10-14 08:50:24,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:50:24,736 INFO L479 AbstractCegarLoop]: Abstraction has 3047 states and 4375 transitions. [2020-10-14 08:50:24,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 08:50:24,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3047 states and 4375 transitions. [2020-10-14 08:50:24,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-14 08:50:24,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:50:24,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:50:24,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 08:50:24,739 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]=== [2020-10-14 08:50:24,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:50:24,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1924636495, now seen corresponding path program 1 times [2020-10-14 08:50:24,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:50:24,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411242834] [2020-10-14 08:50:24,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:50:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:50:24,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:24,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:24,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:25,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:25,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:26,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:26,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:27,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:27,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:28,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:29,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:29,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:50:29,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 08:50:29,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:50:29,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 08:50:29,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:50:29,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:50:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:50:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:50:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 08:50:29,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:50:31,211 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-14 08:50:31,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:50:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:50:31,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:50:31,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:50:31,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:50:31,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:50:31,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:50:31,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:50:31,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:50:31,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:50:31,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:50:31,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:50:31,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:50:31,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:50:31,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411242834] [2020-10-14 08:50:31,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:50:31,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 08:50:31,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835144549] [2020-10-14 08:50:31,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 08:50:31,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:50:31,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 08:50:31,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:50:31,268 INFO L87 Difference]: Start difference. First operand 3047 states and 4375 transitions. Second operand 8 states.