/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 04:12:38,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 04:12:38,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 04:12:38,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 04:12:38,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 04:12:38,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 04:12:38,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 04:12:38,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 04:12:38,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 04:12:38,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 04:12:38,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 04:12:38,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 04:12:38,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 04:12:38,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 04:12:38,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 04:12:38,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 04:12:38,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 04:12:38,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 04:12:38,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 04:12:38,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 04:12:38,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 04:12:38,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 04:12:38,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 04:12:38,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 04:12:38,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 04:12:38,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 04:12:38,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 04:12:38,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 04:12:38,676 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 04:12:38,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 04:12:38,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 04:12:38,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 04:12:38,679 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 04:12:38,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 04:12:38,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 04:12:38,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 04:12:38,682 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 04:12:38,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 04:12:38,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 04:12:38,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 04:12:38,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 04:12:38,686 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 04:12:38,726 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 04:12:38,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 04:12:38,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 04:12:38,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 04:12:38,729 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 04:12:38,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 04:12:38,729 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 04:12:38,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 04:12:38,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 04:12:38,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 04:12:38,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 04:12:38,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 04:12:38,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 04:12:38,732 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 04:12:38,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 04:12:38,732 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 04:12:38,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 04:12:38,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 04:12:38,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 04:12:38,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 04:12:38,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 04:12:38,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 04:12:38,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 04:12:38,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 04:12:38,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 04:12:38,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 04:12:38,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 04:12:38,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 04:12:38,735 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 04:12:38,735 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 04:12:39,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 04:12:39,037 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 04:12:39,041 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 04:12:39,042 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 04:12:39,043 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 04:12:39,043 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 04:12:39,128 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/71b53daa7/d7c0c0afb0654384a28f46fd8f50677d/FLAG825a8dfee [2020-10-15 04:12:39,861 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 04:12:39,862 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 04:12:39,890 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/71b53daa7/d7c0c0afb0654384a28f46fd8f50677d/FLAG825a8dfee [2020-10-15 04:12:39,995 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/71b53daa7/d7c0c0afb0654384a28f46fd8f50677d [2020-10-15 04:12:40,004 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 04:12:40,006 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 04:12:40,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 04:12:40,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 04:12:40,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 04:12:40,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:12:39" (1/1) ... [2020-10-15 04:12:40,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42e25ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:12:40, skipping insertion in model container [2020-10-15 04:12:40,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:12:39" (1/1) ... [2020-10-15 04:12:40,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 04:12:40,188 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 04:12:41,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 04:12:41,604 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 04:12:42,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 04:12:42,570 INFO L208 MainTranslator]: Completed translation [2020-10-15 04:12:42,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:12:42 WrapperNode [2020-10-15 04:12:42,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 04:12:42,574 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 04:12:42,574 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 04:12:42,575 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 04:12:42,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:12:42" (1/1) ... [2020-10-15 04:12:42,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:12:42" (1/1) ... [2020-10-15 04:12:42,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:12:42" (1/1) ... [2020-10-15 04:12:42,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:12:42" (1/1) ... [2020-10-15 04:12:42,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:12:42" (1/1) ... [2020-10-15 04:12:42,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:12:42" (1/1) ... [2020-10-15 04:12:42,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:12:42" (1/1) ... [2020-10-15 04:12:42,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 04:12:42,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 04:12:42,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 04:12:42,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 04:12:42,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:12:42" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 04:12:42,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 04:12:42,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 04:12:42,905 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 04:12:42,905 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 04:12:42,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 04:12:42,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 04:12:42,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 04:12:42,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 04:12:42,907 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 04:12:42,908 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 04:12:42,908 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 04:12:42,908 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 04:12:42,908 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 04:12:42,908 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 04:12:42,909 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 04:12:42,910 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 04:12:42,910 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 04:12:42,910 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 04:12:42,910 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 04:12:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 04:12:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 04:12:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 04:12:45,872 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 04:12:45,872 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 04:12:45,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:12:45 BoogieIcfgContainer [2020-10-15 04:12:45,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 04:12:45,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 04:12:45,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 04:12:45,887 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 04:12:45,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:12:39" (1/3) ... [2020-10-15 04:12:45,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108ba8ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:12:45, skipping insertion in model container [2020-10-15 04:12:45,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:12:42" (2/3) ... [2020-10-15 04:12:45,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108ba8ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:12:45, skipping insertion in model container [2020-10-15 04:12:45,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:12:45" (3/3) ... [2020-10-15 04:12:45,890 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 04:12:45,899 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 04:12:45,907 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-10-15 04:12:45,920 INFO L251 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-10-15 04:12:45,948 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 04:12:45,948 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 04:12:45,948 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 04:12:45,949 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 04:12:45,949 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 04:12:45,949 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 04:12:45,949 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 04:12:45,949 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 04:12:45,986 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states. [2020-10-15 04:12:46,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-10-15 04:12:46,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:12:46,023 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:12:46,024 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:12:46,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:12:46,031 INFO L82 PathProgramCache]: Analyzing trace with hash -69613383, now seen corresponding path program 1 times [2020-10-15 04:12:46,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:12:46,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1013464454] [2020-10-15 04:12:46,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:12:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:12:47,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:47,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:48,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:48,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:49,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:49,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:49,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:49,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:50,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:50,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:50,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:50,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:51,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:51,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:51,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:12:51,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 326 [2020-10-15 04:12:51,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 04:12:51,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5089 [2020-10-15 04:12:51,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:12:51,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:12:51,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:12:51,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-15 04:12:51,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 213 [2020-10-15 04:12:51,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 04:12:52,811 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 04:12:52,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:12:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:12:52,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:52,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:12:52,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:12:52,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:12:52,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 04:12:52,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:12:52,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:12:52,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:12:52,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:12:52,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:12:52,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:12:53,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:12:53,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1013464454] [2020-10-15 04:12:53,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:12:53,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:12:53,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139886124] [2020-10-15 04:12:53,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:12:53,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:12:53,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:12:53,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:12:53,078 INFO L87 Difference]: Start difference. First operand 997 states. Second operand 4 states. [2020-10-15 04:12:53,800 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-10-15 04:13:00,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:13:00,925 INFO L93 Difference]: Finished difference Result 1737 states and 3083 transitions. [2020-10-15 04:13:00,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:13:00,927 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 320 [2020-10-15 04:13:00,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:13:00,970 INFO L225 Difference]: With dead ends: 1737 [2020-10-15 04:13:00,970 INFO L226 Difference]: Without dead ends: 1431 [2020-10-15 04:13:00,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:13:01,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2020-10-15 04:13:01,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1429. [2020-10-15 04:13:01,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1429 states. [2020-10-15 04:13:01,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 2185 transitions. [2020-10-15 04:13:01,159 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 2185 transitions. Word has length 320 [2020-10-15 04:13:01,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:13:01,164 INFO L479 AbstractCegarLoop]: Abstraction has 1429 states and 2185 transitions. [2020-10-15 04:13:01,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:13:01,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 2185 transitions. [2020-10-15 04:13:01,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-10-15 04:13:01,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:13:01,176 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:13:01,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 04:13:01,179 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:13:01,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:13:01,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1902729785, now seen corresponding path program 1 times [2020-10-15 04:13:01,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:13:01,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1985296630] [2020-10-15 04:13:01,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:13:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:13:01,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:01,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:02,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:02,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:02,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:03,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:03,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:03,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:03,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:03,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:04,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:04,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:04,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:04,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:06,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:13:06,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 326 [2020-10-15 04:13:06,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 04:13:06,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 04:13:06,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:13:06,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:13:06,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:13:06,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-15 04:13:06,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-15 04:13:06,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 04:13:07,473 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 04:13:07,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:13:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:13:07,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:07,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:13:07,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:13:07,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:13:07,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 04:13:07,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:13:07,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:13:07,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:13:07,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:13:07,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:13:07,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:13:07,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:13:07,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1985296630] [2020-10-15 04:13:07,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:13:07,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:13:07,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786760375] [2020-10-15 04:13:07,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:13:07,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:13:07,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:13:07,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:13:07,912 INFO L87 Difference]: Start difference. First operand 1429 states and 2185 transitions. Second operand 4 states. [2020-10-15 04:13:08,646 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-10-15 04:13:16,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:13:16,112 INFO L93 Difference]: Finished difference Result 2740 states and 4241 transitions. [2020-10-15 04:13:16,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:13:16,113 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 320 [2020-10-15 04:13:16,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:13:16,132 INFO L225 Difference]: With dead ends: 2740 [2020-10-15 04:13:16,132 INFO L226 Difference]: Without dead ends: 2305 [2020-10-15 04:13:16,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:13:16,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2305 states. [2020-10-15 04:13:16,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2305 to 2303. [2020-10-15 04:13:16,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2303 states. [2020-10-15 04:13:16,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2303 states to 2303 states and 3541 transitions. [2020-10-15 04:13:16,254 INFO L78 Accepts]: Start accepts. Automaton has 2303 states and 3541 transitions. Word has length 320 [2020-10-15 04:13:16,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:13:16,256 INFO L479 AbstractCegarLoop]: Abstraction has 2303 states and 3541 transitions. [2020-10-15 04:13:16,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:13:16,256 INFO L276 IsEmpty]: Start isEmpty. Operand 2303 states and 3541 transitions. [2020-10-15 04:13:16,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-10-15 04:13:16,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:13:16,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:13:16,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 04:13:16,271 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:13:16,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:13:16,272 INFO L82 PathProgramCache]: Analyzing trace with hash 288669799, now seen corresponding path program 1 times [2020-10-15 04:13:16,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:13:16,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [420673662] [2020-10-15 04:13:16,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:13:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:13:16,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:16,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:17,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:17,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:17,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:17,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:17,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:18,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:18,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:18,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:18,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:18,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:18,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:18,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:21,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:13:21,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 326 [2020-10-15 04:13:21,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 04:13:21,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 04:13:21,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:13:21,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:13:21,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:13:21,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:13:21,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-15 04:13:21,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:13:22,266 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 04:13:22,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:13:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:13:22,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:22,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:13:22,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:13:22,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:13:22,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 04:13:22,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:13:22,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:13:22,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:13:22,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:13:22,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:13:22,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:13:22,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:13:22,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [420673662] [2020-10-15 04:13:22,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:13:22,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:13:22,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135066494] [2020-10-15 04:13:22,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:13:22,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:13:22,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:13:22,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:13:22,569 INFO L87 Difference]: Start difference. First operand 2303 states and 3541 transitions. Second operand 5 states. [2020-10-15 04:13:31,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:13:31,743 INFO L93 Difference]: Finished difference Result 6821 states and 10478 transitions. [2020-10-15 04:13:31,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:13:31,745 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 320 [2020-10-15 04:13:31,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:13:31,768 INFO L225 Difference]: With dead ends: 6821 [2020-10-15 04:13:31,768 INFO L226 Difference]: Without dead ends: 4531 [2020-10-15 04:13:31,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:13:31,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4531 states. [2020-10-15 04:13:31,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4531 to 4434. [2020-10-15 04:13:31,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4434 states. [2020-10-15 04:13:31,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4434 states to 4434 states and 6807 transitions. [2020-10-15 04:13:31,951 INFO L78 Accepts]: Start accepts. Automaton has 4434 states and 6807 transitions. Word has length 320 [2020-10-15 04:13:31,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:13:31,952 INFO L479 AbstractCegarLoop]: Abstraction has 4434 states and 6807 transitions. [2020-10-15 04:13:31,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:13:31,952 INFO L276 IsEmpty]: Start isEmpty. Operand 4434 states and 6807 transitions. [2020-10-15 04:13:31,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2020-10-15 04:13:31,963 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:13:31,963 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:13:31,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 04:13:31,964 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:13:31,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:13:31,964 INFO L82 PathProgramCache]: Analyzing trace with hash 82115012, now seen corresponding path program 1 times [2020-10-15 04:13:31,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:13:31,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [838773085] [2020-10-15 04:13:31,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:13:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:13:32,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:32,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:32,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:32,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:32,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:32,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:33,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:33,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:33,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:33,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:33,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:33,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:34,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:34,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:37,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:13:37,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 328 [2020-10-15 04:13:37,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 04:13:37,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-15 04:13:37,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:13:37,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:13:37,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:13:37,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 04:13:37,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-15 04:13:37,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:13:37,772 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 04:13:37,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:13:37,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:13:37,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:37,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:13:37,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:13:37,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:13:37,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 04:13:37,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:13:37,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:13:37,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:13:37,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:13:37,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:13:37,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:13:38,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:13:38,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [838773085] [2020-10-15 04:13:38,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:13:38,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:13:38,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935839155] [2020-10-15 04:13:38,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:13:38,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:13:38,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:13:38,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:13:38,146 INFO L87 Difference]: Start difference. First operand 4434 states and 6807 transitions. Second operand 4 states. [2020-10-15 04:13:48,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:13:48,086 INFO L93 Difference]: Finished difference Result 12975 states and 19862 transitions. [2020-10-15 04:13:48,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 04:13:48,086 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 322 [2020-10-15 04:13:48,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:13:48,122 INFO L225 Difference]: With dead ends: 12975 [2020-10-15 04:13:48,122 INFO L226 Difference]: Without dead ends: 8681 [2020-10-15 04:13:48,132 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:13:48,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8681 states. [2020-10-15 04:13:48,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8681 to 8586. [2020-10-15 04:13:48,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8586 states. [2020-10-15 04:13:48,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8586 states to 8586 states and 13126 transitions. [2020-10-15 04:13:48,471 INFO L78 Accepts]: Start accepts. Automaton has 8586 states and 13126 transitions. Word has length 322 [2020-10-15 04:13:48,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:13:48,471 INFO L479 AbstractCegarLoop]: Abstraction has 8586 states and 13126 transitions. [2020-10-15 04:13:48,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:13:48,471 INFO L276 IsEmpty]: Start isEmpty. Operand 8586 states and 13126 transitions. [2020-10-15 04:13:48,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2020-10-15 04:13:48,488 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:13:48,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:13:48,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 04:13:48,489 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:13:48,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:13:48,490 INFO L82 PathProgramCache]: Analyzing trace with hash -43545335, now seen corresponding path program 1 times [2020-10-15 04:13:48,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:13:48,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [4524703] [2020-10-15 04:13:48,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:13:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:13:48,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:48,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:48,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:49,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:49,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:49,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:49,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:49,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:49,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:49,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:49,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:49,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:50,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:50,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:52,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:53,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:13:53,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 328 [2020-10-15 04:13:53,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 04:13:53,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 04:13:53,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:13:53,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:13:53,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:13:53,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:13:53,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-15 04:13:53,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:13:54,247 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 04:13:54,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:13:54,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:13:54,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:54,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:13:54,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:13:54,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:13:54,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 04:13:54,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:13:54,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:13:54,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:13:54,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:13:54,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:13:54,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:13:54,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:13:54,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [4524703] [2020-10-15 04:13:54,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:13:54,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:13:54,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950222898] [2020-10-15 04:13:54,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:13:54,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:13:54,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:13:54,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:13:54,445 INFO L87 Difference]: Start difference. First operand 8586 states and 13126 transitions. Second operand 5 states. [2020-10-15 04:14:03,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:14:03,108 INFO L93 Difference]: Finished difference Result 25448 states and 38851 transitions. [2020-10-15 04:14:03,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:14:03,109 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 322 [2020-10-15 04:14:03,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:14:03,160 INFO L225 Difference]: With dead ends: 25448 [2020-10-15 04:14:03,161 INFO L226 Difference]: Without dead ends: 16887 [2020-10-15 04:14:03,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:14:03,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16887 states. [2020-10-15 04:14:03,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16887 to 16813. [2020-10-15 04:14:03,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16813 states. [2020-10-15 04:14:03,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16813 states to 16813 states and 25558 transitions. [2020-10-15 04:14:03,765 INFO L78 Accepts]: Start accepts. Automaton has 16813 states and 25558 transitions. Word has length 322 [2020-10-15 04:14:03,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:14:03,766 INFO L479 AbstractCegarLoop]: Abstraction has 16813 states and 25558 transitions. [2020-10-15 04:14:03,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:14:03,766 INFO L276 IsEmpty]: Start isEmpty. Operand 16813 states and 25558 transitions. [2020-10-15 04:14:03,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-10-15 04:14:03,802 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:14:03,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:14:03,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 04:14:03,804 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:14:03,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:14:03,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1866844765, now seen corresponding path program 1 times [2020-10-15 04:14:03,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:14:03,805 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [146313744] [2020-10-15 04:14:03,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:14:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:14:03,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:04,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:04,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:04,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:04,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:04,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:05,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:05,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:05,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:05,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:05,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:05,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:05,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:05,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:06,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:06,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:08,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:14:08,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-15 04:14:08,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 04:14:08,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 04:14:08,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:14:08,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:14:08,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:14:08,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:14:08,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-15 04:14:08,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:14:09,506 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 04:14:09,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:14:09,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:14:09,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:09,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:14:09,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:14:09,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:14:09,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 04:14:09,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:14:09,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:14:09,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:14:09,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:14:09,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:14:09,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:14:09,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:14:09,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [146313744] [2020-10-15 04:14:09,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:14:09,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:14:09,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228337953] [2020-10-15 04:14:09,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:14:09,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:14:09,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:14:09,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:14:09,748 INFO L87 Difference]: Start difference. First operand 16813 states and 25558 transitions. Second operand 5 states. [2020-10-15 04:14:19,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:14:19,110 INFO L93 Difference]: Finished difference Result 49623 states and 75275 transitions. [2020-10-15 04:14:19,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:14:19,112 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 324 [2020-10-15 04:14:19,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:14:19,181 INFO L225 Difference]: With dead ends: 49623 [2020-10-15 04:14:19,181 INFO L226 Difference]: Without dead ends: 32884 [2020-10-15 04:14:19,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:14:19,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32884 states. [2020-10-15 04:14:21,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32884 to 32714. [2020-10-15 04:14:21,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32714 states. [2020-10-15 04:14:21,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32714 states to 32714 states and 49413 transitions. [2020-10-15 04:14:21,520 INFO L78 Accepts]: Start accepts. Automaton has 32714 states and 49413 transitions. Word has length 324 [2020-10-15 04:14:21,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:14:21,521 INFO L479 AbstractCegarLoop]: Abstraction has 32714 states and 49413 transitions. [2020-10-15 04:14:21,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:14:21,521 INFO L276 IsEmpty]: Start isEmpty. Operand 32714 states and 49413 transitions. [2020-10-15 04:14:21,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-10-15 04:14:21,568 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:14:21,568 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:14:21,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 04:14:21,568 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:14:21,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:14:21,569 INFO L82 PathProgramCache]: Analyzing trace with hash 21236173, now seen corresponding path program 1 times [2020-10-15 04:14:21,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:14:21,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471068636] [2020-10-15 04:14:21,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:14:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:14:21,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:21,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:22,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:22,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:22,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:22,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:23,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:23,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:23,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:23,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:23,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:23,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:23,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:24,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:25,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:25,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:25,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:25,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:26,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:14:26,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 332 [2020-10-15 04:14:26,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-15 04:14:26,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 04:14:26,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:14:26,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:14:26,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:14:26,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:14:26,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-15 04:14:26,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:14:27,381 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 04:14:27,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:14:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:14:27,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:27,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:14:27,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:14:27,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:14:27,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 04:14:27,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:14:27,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:14:27,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:14:27,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:14:27,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:14:27,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:14:27,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:14:27,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471068636] [2020-10-15 04:14:27,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:14:27,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:14:27,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027617366] [2020-10-15 04:14:27,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:14:27,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:14:27,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:14:27,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:14:27,512 INFO L87 Difference]: Start difference. First operand 32714 states and 49413 transitions. Second operand 5 states. [2020-10-15 04:14:37,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:14:37,912 INFO L93 Difference]: Finished difference Result 96008 states and 144595 transitions. [2020-10-15 04:14:37,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:14:37,913 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 326 [2020-10-15 04:14:37,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:14:38,059 INFO L225 Difference]: With dead ends: 96008 [2020-10-15 04:14:38,060 INFO L226 Difference]: Without dead ends: 63770 [2020-10-15 04:14:38,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:14:38,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63770 states. [2020-10-15 04:14:40,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63770 to 63600. [2020-10-15 04:14:40,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63600 states. [2020-10-15 04:14:40,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63600 states to 63600 states and 95269 transitions. [2020-10-15 04:14:40,156 INFO L78 Accepts]: Start accepts. Automaton has 63600 states and 95269 transitions. Word has length 326 [2020-10-15 04:14:40,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:14:40,156 INFO L479 AbstractCegarLoop]: Abstraction has 63600 states and 95269 transitions. [2020-10-15 04:14:40,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:14:40,156 INFO L276 IsEmpty]: Start isEmpty. Operand 63600 states and 95269 transitions. [2020-10-15 04:14:40,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-10-15 04:14:40,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:14:40,205 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:14:40,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 04:14:40,205 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:14:40,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:14:40,206 INFO L82 PathProgramCache]: Analyzing trace with hash 549512148, now seen corresponding path program 1 times [2020-10-15 04:14:40,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:14:40,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1365692588] [2020-10-15 04:14:40,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:14:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:14:40,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:40,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:40,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:40,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:40,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:40,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:42,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:42,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:42,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:42,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:42,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:42,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:42,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:42,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:43,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:44,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:44,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:45,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:14:45,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 334 [2020-10-15 04:14:45,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-15 04:14:45,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-15 04:14:45,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:14:45,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:14:45,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:14:45,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:14:45,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-15 04:14:45,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:14:45,883 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 04:14:45,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:14:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:14:45,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:14:45,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:14:45,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:14:45,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:14:45,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 04:14:45,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:14:45,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:14:45,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:14:45,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:14:45,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:14:45,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:14:45,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:14:46,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1365692588] [2020-10-15 04:14:46,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:14:46,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:14:46,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686384163] [2020-10-15 04:14:46,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:14:46,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:14:46,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:14:46,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:14:46,002 INFO L87 Difference]: Start difference. First operand 63600 states and 95269 transitions. Second operand 5 states. [2020-10-15 04:14:58,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:14:58,343 INFO L93 Difference]: Finished difference Result 187088 states and 279539 transitions. [2020-10-15 04:14:58,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:14:58,344 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 328 [2020-10-15 04:14:58,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:14:58,523 INFO L225 Difference]: With dead ends: 187088 [2020-10-15 04:14:58,523 INFO L226 Difference]: Without dead ends: 124236 [2020-10-15 04:14:58,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:14:58,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124236 states. [2020-10-15 04:15:04,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124236 to 124128. [2020-10-15 04:15:04,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124128 states. [2020-10-15 04:15:04,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124128 states to 124128 states and 184417 transitions. [2020-10-15 04:15:04,469 INFO L78 Accepts]: Start accepts. Automaton has 124128 states and 184417 transitions. Word has length 328 [2020-10-15 04:15:04,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:15:04,469 INFO L479 AbstractCegarLoop]: Abstraction has 124128 states and 184417 transitions. [2020-10-15 04:15:04,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:15:04,469 INFO L276 IsEmpty]: Start isEmpty. Operand 124128 states and 184417 transitions. [2020-10-15 04:15:04,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-10-15 04:15:04,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:15:04,569 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:15:04,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 04:15:04,570 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:15:04,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:15:04,570 INFO L82 PathProgramCache]: Analyzing trace with hash -2061813864, now seen corresponding path program 1 times [2020-10-15 04:15:04,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:15:04,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102347570] [2020-10-15 04:15:04,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:15:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:15:04,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:05,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:05,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:05,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:05,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:05,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:05,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:05,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:05,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:05,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:05,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:09,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:15:09,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 336 [2020-10-15 04:15:09,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 04:15:09,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 04:15:09,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:15:09,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:15:09,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:15:09,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:15:09,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-15 04:15:09,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:15:10,193 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 04:15:10,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:15:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:15:10,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:10,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:15:10,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:15:10,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:15:10,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 04:15:10,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:15:10,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:15:10,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:15:10,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:15:10,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:15:10,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:15:10,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:15:10,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102347570] [2020-10-15 04:15:10,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:15:10,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:15:10,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944524215] [2020-10-15 04:15:10,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:15:10,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:15:10,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:15:10,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:15:10,320 INFO L87 Difference]: Start difference. First operand 124128 states and 184417 transitions. Second operand 5 states. [2020-10-15 04:15:23,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:15:23,789 INFO L93 Difference]: Finished difference Result 253483 states and 376559 transitions. [2020-10-15 04:15:23,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:15:23,790 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 330 [2020-10-15 04:15:23,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:15:23,934 INFO L225 Difference]: With dead ends: 253483 [2020-10-15 04:15:23,934 INFO L226 Difference]: Without dead ends: 129585 [2020-10-15 04:15:24,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:15:24,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129585 states. [2020-10-15 04:15:31,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129585 to 124763. [2020-10-15 04:15:31,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124763 states. [2020-10-15 04:15:32,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124763 states to 124763 states and 185433 transitions. [2020-10-15 04:15:32,092 INFO L78 Accepts]: Start accepts. Automaton has 124763 states and 185433 transitions. Word has length 330 [2020-10-15 04:15:32,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:15:32,093 INFO L479 AbstractCegarLoop]: Abstraction has 124763 states and 185433 transitions. [2020-10-15 04:15:32,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:15:32,093 INFO L276 IsEmpty]: Start isEmpty. Operand 124763 states and 185433 transitions. [2020-10-15 04:15:32,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-10-15 04:15:32,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:15:32,168 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:15:32,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 04:15:32,169 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:15:32,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:15:32,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1314341041, now seen corresponding path program 1 times [2020-10-15 04:15:32,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:15:32,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1614438087] [2020-10-15 04:15:32,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:15:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:15:32,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:32,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:32,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:32,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:32,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:32,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:32,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:32,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:32,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:32,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:37,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:15:37,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 338 [2020-10-15 04:15:37,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 04:15:37,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-15 04:15:37,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:15:37,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:15:37,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:15:37,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:15:37,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-15 04:15:37,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:15:37,848 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 04:15:37,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:15:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:15:37,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:15:37,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:15:37,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:15:37,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:15:37,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 04:15:37,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:15:37,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:15:37,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:15:37,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:15:37,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:15:37,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:15:38,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:15:38,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1614438087] [2020-10-15 04:15:38,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:15:38,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:15:38,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314680766] [2020-10-15 04:15:38,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:15:38,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:15:38,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:15:38,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:15:38,004 INFO L87 Difference]: Start difference. First operand 124763 states and 185433 transitions. Second operand 5 states. [2020-10-15 04:15:58,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:15:58,563 INFO L93 Difference]: Finished difference Result 368004 states and 545820 transitions. [2020-10-15 04:15:58,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:15:58,564 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 332 [2020-10-15 04:15:58,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:15:58,816 INFO L225 Difference]: With dead ends: 368004 [2020-10-15 04:15:58,816 INFO L226 Difference]: Without dead ends: 243998 [2020-10-15 04:15:58,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:15:59,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243998 states.