/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/pals_opt-floodmax.5.2.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:46:32,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:46:32,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:46:32,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:46:32,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:46:32,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:46:32,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:46:32,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:46:32,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:46:32,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:46:32,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:46:32,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:46:32,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:46:32,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:46:32,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:46:32,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:46:32,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:46:32,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:46:32,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:46:32,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:46:32,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:46:32,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:46:32,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:46:32,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:46:32,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:46:32,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:46:32,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:46:32,847 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:46:32,847 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:46:32,848 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:46:32,848 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:46:32,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:46:32,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:46:32,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:46:32,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:46:32,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:46:32,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:46:32,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:46:32,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:46:32,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:46:32,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:46:32,859 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 02:46:32,898 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:46:32,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:46:32,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:46:32,901 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:46:32,901 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:46:32,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:46:32,902 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:46:32,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:46:32,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:46:32,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:46:32,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:46:32,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:46:32,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:46:32,905 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:46:32,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:46:32,905 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:46:32,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:46:32,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:46:32,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:46:32,906 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:46:32,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:46:32,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:46:32,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:46:32,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:46:32,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:46:32,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:46:32,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:46:32,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:46:32,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:46:32,908 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 02:46:33,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:46:33,275 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:46:33,280 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:46:33,282 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:46:33,283 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:46:33,284 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.5.2.ufo.BOUNDED-10.pals.c [2020-10-15 02:46:33,357 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/41f39b840/89e88130864a4a9580afbac23bc06ce3/FLAG36bb94918 [2020-10-15 02:46:34,034 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:46:34,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.5.2.ufo.BOUNDED-10.pals.c [2020-10-15 02:46:34,054 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/41f39b840/89e88130864a4a9580afbac23bc06ce3/FLAG36bb94918 [2020-10-15 02:46:34,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/41f39b840/89e88130864a4a9580afbac23bc06ce3 [2020-10-15 02:46:34,190 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:46:34,191 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:46:34,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:46:34,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:46:34,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:46:34,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:46:34" (1/1) ... [2020-10-15 02:46:34,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c07bf98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:46:34, skipping insertion in model container [2020-10-15 02:46:34,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:46:34" (1/1) ... [2020-10-15 02:46:34,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:46:34,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:46:34,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:46:34,971 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:46:35,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:46:35,174 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:46:35,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:46:35 WrapperNode [2020-10-15 02:46:35,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:46:35,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:46:35,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:46:35,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:46:35,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:46:35" (1/1) ... [2020-10-15 02:46:35,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:46:35" (1/1) ... [2020-10-15 02:46:35,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:46:35" (1/1) ... [2020-10-15 02:46:35,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:46:35" (1/1) ... [2020-10-15 02:46:35,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:46:35" (1/1) ... [2020-10-15 02:46:35,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:46:35" (1/1) ... [2020-10-15 02:46:35,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:46:35" (1/1) ... [2020-10-15 02:46:35,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:46:35,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:46:35,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:46:35,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:46:35,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:46:35" (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 02:46:35,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:46:35,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:46:35,457 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:46:35,457 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:46:35,457 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:46:35,458 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:46:35,458 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-15 02:46:35,459 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-15 02:46:35,459 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:46:35,459 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:46:35,459 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:46:35,460 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:46:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:46:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:46:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:46:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:46:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:46:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:46:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:46:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:46:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:46:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:46:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:46:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 02:46:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-15 02:46:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:46:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:46:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:46:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:46:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:46:37,626 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:46:37,627 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:46:37,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:46:37 BoogieIcfgContainer [2020-10-15 02:46:37,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:46:37,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:46:37,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:46:37,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:46:37,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:46:34" (1/3) ... [2020-10-15 02:46:37,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f9c829c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:46:37, skipping insertion in model container [2020-10-15 02:46:37,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:46:35" (2/3) ... [2020-10-15 02:46:37,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f9c829c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:46:37, skipping insertion in model container [2020-10-15 02:46:37,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:46:37" (3/3) ... [2020-10-15 02:46:37,645 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.2.ufo.BOUNDED-10.pals.c [2020-10-15 02:46:37,656 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:46:37,664 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:46:37,678 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:46:37,703 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:46:37,703 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:46:37,703 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:46:37,703 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:46:37,703 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:46:37,703 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:46:37,704 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:46:37,704 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:46:37,737 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states. [2020-10-15 02:46:37,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-15 02:46:37,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:46:37,770 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] [2020-10-15 02:46:37,770 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:46:37,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:46:37,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1964386708, now seen corresponding path program 1 times [2020-10-15 02:46:37,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:46:37,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1226593406] [2020-10-15 02:46:37,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:46:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:38,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:39,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:39,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-15 02:46:39,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:39,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 966 [2020-10-15 02:46:39,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:39,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:39,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:39,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-15 02:46:39,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:39,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-15 02:46:40,362 WARN L193 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-15 02:46:40,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:46:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:40,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:40,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:40,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:46:40,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:40,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-15 02:46:40,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:40,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:40,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:40,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:40,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:40,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:40,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:46:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:40,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:40,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:40,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-15 02:46:40,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:40,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-15 02:46:40,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:40,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:40,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:40,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:40,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:40,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:40,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-15 02:46:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:40,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:40,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:40,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:46:40,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:40,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:46:40,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:40,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:40,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:40,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:46:40,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:40,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:40,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-15 02:46:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:40,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:40,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:40,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:40,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:40,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:46:40,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:40,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:40,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:40,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:46:40,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:40,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:40,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-15 02:46:40,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:40,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:40,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:40,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:40,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:40,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:46:40,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:40,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:40,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:40,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:46:40,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:40,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:40,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-15 02:46:40,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:40,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:40,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:40,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:40,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:40,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:46:40,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:40,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:40,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:40,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:46:40,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:40,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:40,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-15 02:46:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:40,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:40,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:40,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:40,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:40,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:46:40,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:40,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:40,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:40,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:46:40,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:40,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:41,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-15 02:46:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:41,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:41,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:41,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:41,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:41,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:46:41,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:41,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:41,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:41,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:46:41,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:41,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:41,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-15 02:46:41,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:41,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:41,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:41,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:46:41,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:41,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:46:41,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:41,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:41,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:41,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:46:41,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:41,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:41,154 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 02:46:41,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1226593406] [2020-10-15 02:46:41,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:46:41,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 02:46:41,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718136306] [2020-10-15 02:46:41,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 02:46:41,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:46:41,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 02:46:41,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-15 02:46:41,192 INFO L87 Difference]: Start difference. First operand 773 states. Second operand 8 states. [2020-10-15 02:46:44,014 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:46:44,628 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:46:45,286 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:46:45,986 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:46:46,700 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:46:47,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:46:47,773 INFO L93 Difference]: Finished difference Result 1051 states and 1855 transitions. [2020-10-15 02:46:47,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 02:46:47,775 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2020-10-15 02:46:47,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:46:47,801 INFO L225 Difference]: With dead ends: 1051 [2020-10-15 02:46:47,802 INFO L226 Difference]: Without dead ends: 833 [2020-10-15 02:46:47,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:46:47,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2020-10-15 02:46:47,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 768. [2020-10-15 02:46:47,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2020-10-15 02:46:47,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1387 transitions. [2020-10-15 02:46:47,998 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1387 transitions. Word has length 187 [2020-10-15 02:46:47,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:46:47,999 INFO L479 AbstractCegarLoop]: Abstraction has 768 states and 1387 transitions. [2020-10-15 02:46:47,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 02:46:47,999 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1387 transitions. [2020-10-15 02:46:48,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-15 02:46:48,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:46:48,007 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] [2020-10-15 02:46:48,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:46:48,007 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:46:48,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:46:48,008 INFO L82 PathProgramCache]: Analyzing trace with hash -792240558, now seen corresponding path program 1 times [2020-10-15 02:46:48,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:46:48,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1860382756] [2020-10-15 02:46:48,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:46:48,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:48,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:50,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:50,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-15 02:46:50,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:50,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2493 [2020-10-15 02:46:50,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:50,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:50,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:46:50,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-15 02:46:50,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:46:50,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:51,613 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-15 02:46:51,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:46:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:51,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:51,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:51,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:46:51,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:51,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 02:46:51,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:51,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:51,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:51,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:51,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:51,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:51,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:46:51,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:51,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:52,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:52,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-15 02:46:52,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:52,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 625 [2020-10-15 02:46:52,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:52,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:52,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:46:52,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:52,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-15 02:46:52,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-15 02:46:52,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-15 02:46:52,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:52,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:52,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:52,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:46:52,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:52,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:46:52,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:52,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:52,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:46:52,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:46:52,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:46:52,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:52,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-15 02:46:52,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:52,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:52,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:52,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:52,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:52,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:46:52,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:52,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:52,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:52,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:46:52,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:52,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:46:52,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-15 02:46:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:52,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:52,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:52,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:52,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:52,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:46:52,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:52,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:52,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:52,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:46:52,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:52,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:52,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-15 02:46:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:52,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:52,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:52,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:52,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:52,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:46:52,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:52,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:52,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:52,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:46:52,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:52,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:52,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-15 02:46:52,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:52,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:52,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:52,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:52,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:52,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:46:52,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:52,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:52,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:52,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:46:52,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:52,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:52,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-15 02:46:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:52,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:52,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:52,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:52,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:52,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:46:52,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:52,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:52,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:52,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:46:52,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:52,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:52,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-15 02:46:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:52,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:52,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:52,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:46:52,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:52,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:46:52,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:52,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:52,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:52,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:46:52,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:52,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:52,950 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 02:46:52,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1860382756] [2020-10-15 02:46:52,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:46:52,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:46:52,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447986609] [2020-10-15 02:46:52,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:46:52,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:46:52,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:46:52,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:46:52,955 INFO L87 Difference]: Start difference. First operand 768 states and 1387 transitions. Second operand 14 states. [2020-10-15 02:47:00,464 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-15 02:47:01,193 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 375 [2020-10-15 02:47:01,982 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-15 02:47:02,624 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-15 02:47:03,729 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:47:04,382 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:47:05,181 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:47:06,043 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:47:06,836 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:47:08,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:47:08,111 INFO L93 Difference]: Finished difference Result 1055 states and 1861 transitions. [2020-10-15 02:47:08,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:47:08,118 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 187 [2020-10-15 02:47:08,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:47:08,126 INFO L225 Difference]: With dead ends: 1055 [2020-10-15 02:47:08,126 INFO L226 Difference]: Without dead ends: 844 [2020-10-15 02:47:08,129 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:47:08,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2020-10-15 02:47:08,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 768. [2020-10-15 02:47:08,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2020-10-15 02:47:08,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1322 transitions. [2020-10-15 02:47:08,256 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1322 transitions. Word has length 187 [2020-10-15 02:47:08,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:47:08,256 INFO L479 AbstractCegarLoop]: Abstraction has 768 states and 1322 transitions. [2020-10-15 02:47:08,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:47:08,257 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1322 transitions. [2020-10-15 02:47:08,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-10-15 02:47:08,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:47:08,262 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] [2020-10-15 02:47:08,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:47:08,263 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:47:08,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:47:08,263 INFO L82 PathProgramCache]: Analyzing trace with hash 791940016, now seen corresponding path program 1 times [2020-10-15 02:47:08,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:47:08,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1189798367] [2020-10-15 02:47:08,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:47:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:08,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:08,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:09,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:10,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:13,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:13,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-15 02:47:13,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:47:13,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5143 [2020-10-15 02:47:13,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:13,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:13,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:47:13,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-10-15 02:47:13,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-15 02:47:13,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:14,533 WARN L193 SmtUtils]: Spent 876.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-15 02:47:14,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:47:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:14,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:14,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:14,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:47:14,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:14,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-15 02:47:14,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:14,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:14,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:14,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:14,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:14,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:14,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:47:14,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:14,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:15,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:15,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-15 02:47:15,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:15,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 410 [2020-10-15 02:47:15,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:15,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:15,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:15,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:15,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-15 02:47:15,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:15,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-15 02:47:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:15,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:15,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:15,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:47:15,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:15,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:47:15,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:15,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:47:15,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:15,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-15 02:47:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:15,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:15,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:15,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:15,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:15,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:47:15,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:15,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:15,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:15,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:15,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:47:15,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:15,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-15 02:47:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:15,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:15,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:15,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:15,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:15,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:47:15,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:15,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:15,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:15,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:15,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:47:15,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:15,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-15 02:47:15,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:15,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:15,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:15,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:15,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:15,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 02:47:15,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:15,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:15,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:47:15,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:47:15,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:47:15,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:15,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-15 02:47:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:15,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:15,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:15,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:15,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:15,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:47:15,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:15,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:15,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:15,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:47:15,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:15,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:15,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-10-15 02:47:15,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:15,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:15,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:15,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:15,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:15,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:47:15,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:15,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:15,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:15,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:47:15,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:15,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:15,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-10-15 02:47:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:15,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:15,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:15,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:47:15,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:15,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:47:15,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:15,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:15,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:15,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:47:15,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:15,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:15,614 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 02:47:15,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1189798367] [2020-10-15 02:47:15,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:47:15,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:47:15,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855499414] [2020-10-15 02:47:15,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:47:15,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:47:15,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:47:15,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:47:15,618 INFO L87 Difference]: Start difference. First operand 768 states and 1322 transitions. Second operand 11 states. [2020-10-15 02:47:16,340 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-15 02:47:22,062 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-15 02:47:22,589 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-15 02:47:23,232 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:47:23,772 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:47:24,277 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-15 02:47:24,475 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:47:25,136 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-15 02:47:25,440 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:47:26,813 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:47:27,233 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:47:28,187 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-15 02:47:28,414 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:47:28,749 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 02:47:28,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:47:28,796 INFO L93 Difference]: Finished difference Result 1301 states and 2205 transitions. [2020-10-15 02:47:28,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:47:28,797 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 251 [2020-10-15 02:47:28,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:47:28,805 INFO L225 Difference]: With dead ends: 1301 [2020-10-15 02:47:28,805 INFO L226 Difference]: Without dead ends: 1096 [2020-10-15 02:47:28,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-15 02:47:28,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2020-10-15 02:47:28,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 961. [2020-10-15 02:47:28,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 961 states. [2020-10-15 02:47:28,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1640 transitions. [2020-10-15 02:47:28,926 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1640 transitions. Word has length 251 [2020-10-15 02:47:28,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:47:28,927 INFO L479 AbstractCegarLoop]: Abstraction has 961 states and 1640 transitions. [2020-10-15 02:47:28,927 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:47:28,927 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1640 transitions. [2020-10-15 02:47:28,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-15 02:47:28,933 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:47:28,933 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] [2020-10-15 02:47:28,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:47:28,934 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:47:28,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:47:28,934 INFO L82 PathProgramCache]: Analyzing trace with hash 186149592, now seen corresponding path program 1 times [2020-10-15 02:47:28,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:47:28,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [22166537] [2020-10-15 02:47:28,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:47:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:29,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:29,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:29,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:30,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:31,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:32,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:32,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:34,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:34,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 279 [2020-10-15 02:47:34,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:47:34,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-15 02:47:34,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:34,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:34,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:47:34,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:47:34,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 225 [2020-10-15 02:47:34,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:35,030 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-15 02:47:35,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:47:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:35,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:35,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:35,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:47:35,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:35,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:47:35,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:35,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:35,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:35,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:35,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:35,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:35,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:47:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:35,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:35,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:35,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-15 02:47:35,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:35,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 432 [2020-10-15 02:47:35,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:35,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:35,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:47:35,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:35,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:47:35,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:35,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-15 02:47:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:35,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:35,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:35,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:47:35,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:35,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:47:35,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:35,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:35,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:35,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:35,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:47:35,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:35,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-15 02:47:35,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:35,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:36,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:36,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:36,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:36,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:47:36,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:36,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:36,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:36,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:36,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:47:36,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:36,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-15 02:47:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:36,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:36,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:36,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:36,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:36,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:47:36,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:36,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:36,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:36,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:36,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:47:36,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-15 02:47:36,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-15 02:47:36,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:36,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:36,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:36,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:47:36,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:36,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:47:36,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:36,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:36,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:36,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:47:36,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:47:36,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:36,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-15 02:47:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:36,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:36,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:36,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:36,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:36,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:47:36,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:36,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:36,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:36,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:47:36,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:36,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:36,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-15 02:47:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:36,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:36,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:36,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:36,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:36,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:47:36,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:36,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:36,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:36,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:47:36,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:36,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:36,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-10-15 02:47:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:36,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:36,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:36,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:47:36,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:36,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:47:36,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:36,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:36,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:36,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:47:36,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:36,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:36,888 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 02:47:36,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [22166537] [2020-10-15 02:47:36,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:47:36,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:47:36,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135859848] [2020-10-15 02:47:36,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:47:36,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:47:36,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:47:36,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:47:36,891 INFO L87 Difference]: Start difference. First operand 961 states and 1640 transitions. Second operand 11 states. [2020-10-15 02:47:37,588 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2020-10-15 02:47:38,327 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 380 [2020-10-15 02:47:39,130 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 384 [2020-10-15 02:47:40,472 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 382 DAG size of output: 378 [2020-10-15 02:47:57,738 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-15 02:47:58,270 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:47:58,614 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:47:59,328 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:47:59,594 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:48:00,168 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:48:00,736 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:48:01,526 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:48:02,210 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:48:03,059 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:48:04,132 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:48:04,444 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:48:04,814 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:48:05,854 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:48:06,315 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:48:06,647 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:48:08,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:48:08,590 INFO L93 Difference]: Finished difference Result 3924 states and 6715 transitions. [2020-10-15 02:48:08,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-15 02:48:08,591 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 255 [2020-10-15 02:48:08,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:48:08,608 INFO L225 Difference]: With dead ends: 3924 [2020-10-15 02:48:08,608 INFO L226 Difference]: Without dead ends: 3037 [2020-10-15 02:48:08,612 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:48:08,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3037 states. [2020-10-15 02:48:09,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3037 to 2699. [2020-10-15 02:48:09,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2699 states. [2020-10-15 02:48:09,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2699 states to 2699 states and 4603 transitions. [2020-10-15 02:48:09,063 INFO L78 Accepts]: Start accepts. Automaton has 2699 states and 4603 transitions. Word has length 255 [2020-10-15 02:48:09,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:48:09,063 INFO L479 AbstractCegarLoop]: Abstraction has 2699 states and 4603 transitions. [2020-10-15 02:48:09,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:48:09,064 INFO L276 IsEmpty]: Start isEmpty. Operand 2699 states and 4603 transitions. [2020-10-15 02:48:09,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-10-15 02:48:09,073 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:48:09,073 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] [2020-10-15 02:48:09,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:48:09,074 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:48:09,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:48:09,074 INFO L82 PathProgramCache]: Analyzing trace with hash 725306344, now seen corresponding path program 1 times [2020-10-15 02:48:09,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:48:09,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [624170527] [2020-10-15 02:48:09,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:48:09,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:09,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:09,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:09,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:10,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:10,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:12,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:12,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:12,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:14,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:14,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-15 02:48:14,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:48:14,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-15 02:48:14,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:14,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:14,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:48:14,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:48:14,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 223 [2020-10-15 02:48:14,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:15,085 WARN L193 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-15 02:48:15,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:48:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:15,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:15,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:15,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:48:15,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:15,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:48:15,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:15,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:15,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:48:15,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:15,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:48:15,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:15,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:48:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:15,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:15,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:15,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-15 02:48:15,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:15,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 402 [2020-10-15 02:48:15,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:15,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:15,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:48:15,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:15,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:48:15,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:48:15,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-15 02:48:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:15,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:15,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:15,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:48:15,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:15,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:48:15,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:15,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:15,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:15,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:15,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:48:15,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:48:15,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-15 02:48:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:15,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:15,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:15,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:48:15,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:15,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:48:15,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:15,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:15,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:15,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:15,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:48:15,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:48:15,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-15 02:48:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:15,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:16,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:16,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:48:16,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:16,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:48:16,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:16,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:16,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:16,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:16,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:48:16,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:48:16,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-15 02:48:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:16,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:16,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:16,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:48:16,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:16,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:48:16,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:16,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:16,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:16,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:48:16,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:48:16,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:16,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-15 02:48:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:16,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:16,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:16,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:48:16,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:16,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:48:16,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:16,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:16,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:48:16,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:48:16,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:48:16,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:16,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-15 02:48:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:16,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:16,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:16,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:48:16,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:16,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:48:16,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:16,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:16,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:48:16,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:48:16,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:48:16,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:16,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2020-10-15 02:48:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:16,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:16,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:16,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:48:16,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:16,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:48:16,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:16,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:16,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:48:16,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:48:16,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:48:16,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:16,362 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 02:48:16,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [624170527] [2020-10-15 02:48:16,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:48:16,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:48:16,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864984764] [2020-10-15 02:48:16,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:48:16,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:48:16,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:48:16,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:48:16,365 INFO L87 Difference]: Start difference. First operand 2699 states and 4603 transitions. Second operand 11 states. [2020-10-15 02:48:17,113 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2020-10-15 02:48:17,851 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification that was a NOOP. DAG size: 381 [2020-10-15 02:48:18,585 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 384 [2020-10-15 02:48:21,004 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 383 DAG size of output: 381 [2020-10-15 02:48:37,828 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-15 02:48:38,307 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:48:38,668 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:48:39,344 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:48:39,698 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:48:40,391 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:48:41,353 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:48:41,692 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:48:42,343 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:48:42,742 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:48:44,310 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:48:44,833 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:48:45,062 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:48:46,034 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:48:46,713 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:48:46,993 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:48:49,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:48:49,071 INFO L93 Difference]: Finished difference Result 10395 states and 17716 transitions. [2020-10-15 02:48:49,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-15 02:48:49,072 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 256 [2020-10-15 02:48:49,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:48:49,110 INFO L225 Difference]: With dead ends: 10395 [2020-10-15 02:48:49,110 INFO L226 Difference]: Without dead ends: 7823 [2020-10-15 02:48:49,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:48:49,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7823 states. [2020-10-15 02:48:50,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7823 to 7051. [2020-10-15 02:48:50,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7051 states. [2020-10-15 02:48:50,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7051 states to 7051 states and 11956 transitions. [2020-10-15 02:48:50,105 INFO L78 Accepts]: Start accepts. Automaton has 7051 states and 11956 transitions. Word has length 256 [2020-10-15 02:48:50,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:48:50,106 INFO L479 AbstractCegarLoop]: Abstraction has 7051 states and 11956 transitions. [2020-10-15 02:48:50,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:48:50,106 INFO L276 IsEmpty]: Start isEmpty. Operand 7051 states and 11956 transitions. [2020-10-15 02:48:50,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-10-15 02:48:50,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:48:50,126 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] [2020-10-15 02:48:50,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:48:50,127 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:48:50,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:48:50,127 INFO L82 PathProgramCache]: Analyzing trace with hash -940330705, now seen corresponding path program 1 times [2020-10-15 02:48:50,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:48:50,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667660711] [2020-10-15 02:48:50,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:48:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:50,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:50,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:50,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:51,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:51,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:52,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:53,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:55,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:55,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-15 02:48:55,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:48:55,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 02:48:55,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:55,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:55,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:48:55,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:48:55,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 227 [2020-10-15 02:48:55,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:56,065 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-15 02:48:56,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:48:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:56,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:56,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:56,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:48:56,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:56,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:48:56,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:56,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:56,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:48:56,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:56,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:48:56,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:56,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:48:56,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:56,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:56,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:56,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-15 02:48:56,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:56,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-15 02:48:56,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:56,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:56,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:48:56,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:56,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:48:56,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:56,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-15 02:48:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:56,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:56,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:56,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:48:56,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:56,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:48:56,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:56,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:56,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:56,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:56,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:48:56,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:56,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-15 02:48:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:56,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:56,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:56,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:48:56,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:56,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:48:56,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:56,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:56,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:56,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:56,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:48:56,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:56,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-15 02:48:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:56,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:56,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:56,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:48:56,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:56,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:48:56,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:56,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:56,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:56,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:56,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:48:56,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:56,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-15 02:48:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:56,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:56,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:56,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:48:56,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:56,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:48:56,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:56,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:56,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:56,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:48:56,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:48:56,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:56,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-15 02:48:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:56,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:56,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:56,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:48:56,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:56,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:48:56,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:56,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:56,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:48:56,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:48:56,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:48:56,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:56,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-15 02:48:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:56,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:56,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:56,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:48:56,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:56,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:48:56,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:56,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:56,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:48:56,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:48:56,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:48:56,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:56,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2020-10-15 02:48:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:56,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:56,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:56,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:48:56,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:56,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:48:56,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:56,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:56,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:48:56,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:48:56,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:48:56,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:56,977 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 02:48:56,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667660711] [2020-10-15 02:48:56,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:48:56,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:48:56,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107371495] [2020-10-15 02:48:56,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:48:56,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:48:56,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:48:56,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:48:56,979 INFO L87 Difference]: Start difference. First operand 7051 states and 11956 transitions. Second operand 11 states. [2020-10-15 02:48:57,725 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2020-10-15 02:48:58,490 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 381 [2020-10-15 02:48:59,567 WARN L193 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 384 [2020-10-15 02:49:01,029 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 383 DAG size of output: 381 [2020-10-15 02:49:21,440 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-15 02:49:21,899 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:49:22,267 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:49:22,875 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:49:23,318 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:49:24,020 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:49:24,908 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:49:25,495 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:49:26,195 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:49:27,029 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:49:28,481 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:49:28,831 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:49:29,117 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:49:30,000 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:49:30,470 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:49:30,821 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:49:32,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:49:32,717 INFO L93 Difference]: Finished difference Result 28987 states and 49162 transitions. [2020-10-15 02:49:32,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-15 02:49:32,721 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 256 [2020-10-15 02:49:32,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:49:32,812 INFO L225 Difference]: With dead ends: 28987 [2020-10-15 02:49:32,812 INFO L226 Difference]: Without dead ends: 22171 [2020-10-15 02:49:32,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:49:32,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22171 states. [2020-10-15 02:49:36,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22171 to 20129. [2020-10-15 02:49:36,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20129 states. [2020-10-15 02:49:36,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20129 states to 20129 states and 33968 transitions. [2020-10-15 02:49:36,651 INFO L78 Accepts]: Start accepts. Automaton has 20129 states and 33968 transitions. Word has length 256 [2020-10-15 02:49:36,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:49:36,651 INFO L479 AbstractCegarLoop]: Abstraction has 20129 states and 33968 transitions. [2020-10-15 02:49:36,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:49:36,651 INFO L276 IsEmpty]: Start isEmpty. Operand 20129 states and 33968 transitions. [2020-10-15 02:49:36,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-10-15 02:49:36,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:49:36,689 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] [2020-10-15 02:49:36,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:49:36,690 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:49:36,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:49:36,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1734531425, now seen corresponding path program 1 times [2020-10-15 02:49:36,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:49:36,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1389673780] [2020-10-15 02:49:36,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:49:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:36,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:36,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:37,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:37,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:38,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:38,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:39,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:39,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:41,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:41,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-10-15 02:49:41,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:49:41,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-15 02:49:41,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:41,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:41,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:49:41,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:49:41,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 226 [2020-10-15 02:49:41,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:42,580 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-15 02:49:42,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:49:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:42,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:42,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:42,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:49:42,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:42,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:49:42,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:42,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:42,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:49:42,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:49:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:49:42,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:42,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:49:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:42,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:42,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:42,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-15 02:49:42,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:42,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-10-15 02:49:42,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:42,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:42,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:49:42,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:49:42,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-15 02:49:42,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:43,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-15 02:49:43,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:43,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:43,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:43,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:49:43,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:43,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:49:43,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:43,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:43,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:49:43,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:49:43,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:49:43,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:43,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-15 02:49:43,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:43,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:43,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:43,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:49:43,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:43,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:49:43,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:43,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:43,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:49:43,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:49:43,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:49:43,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:43,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-15 02:49:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:43,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:43,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:43,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:49:43,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:43,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:49:43,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:43,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:49:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:49:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:49:43,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:43,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-15 02:49:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:43,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:43,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:43,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:49:43,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:43,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:49:43,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:43,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:43,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:49:43,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:49:43,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:49:43,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:43,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2020-10-15 02:49:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:43,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:43,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:43,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:49:43,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:43,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:49:43,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:43,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:43,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:49:43,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:49:43,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:49:43,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:49:43,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-15 02:49:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:43,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:43,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:43,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:49:43,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:43,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:49:43,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:43,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:43,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:49:43,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:49:43,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:49:43,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:43,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2020-10-15 02:49:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:43,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:43,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:43,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:49:43,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:43,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:49:43,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:43,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:49:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:49:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:49:43,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:43,631 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 02:49:43,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1389673780] [2020-10-15 02:49:43,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:49:43,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:49:43,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739847504] [2020-10-15 02:49:43,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:49:43,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:49:43,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:49:43,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:49:43,634 INFO L87 Difference]: Start difference. First operand 20129 states and 33968 transitions. Second operand 11 states. [2020-10-15 02:49:44,528 WARN L193 SmtUtils]: Spent 831.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2020-10-15 02:49:45,322 WARN L193 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 380 [2020-10-15 02:49:46,349 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 384 [2020-10-15 02:49:47,822 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 382 DAG size of output: 378 [2020-10-15 02:50:14,837 WARN L193 SmtUtils]: Spent 950.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-15 02:50:15,328 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:50:15,663 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:50:16,316 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:50:16,826 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:50:17,387 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:50:18,337 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:50:18,977 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:50:19,541 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:50:20,391 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186