/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_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:34:50,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:34:50,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:34:50,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:34:50,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:34:50,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:34:50,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:34:50,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:34:50,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:34:50,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:34:50,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:34:50,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:34:50,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:34:50,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:34:50,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:34:50,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:34:50,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:34:50,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:34:50,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:34:50,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:34:50,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:34:50,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:34:50,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:34:50,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:34:50,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:34:50,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:34:50,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:34:50,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:34:50,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:34:50,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:34:50,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:34:50,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:34:50,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:34:50,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:34:50,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:34:50,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:34:50,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:34:50,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:34:50,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:34:50,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:34:50,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:34:50,663 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 02:34:50,684 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:34:50,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:34:50,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:34:50,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:34:50,686 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:34:50,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:34:50,686 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:34:50,686 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:34:50,687 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:34:50,687 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:34:50,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:34:50,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:34:50,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:34:50,688 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:34:50,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:34:50,688 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:34:50,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:34:50,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:34:50,689 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:34:50,689 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:34:50,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:34:50,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:34:50,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:34:50,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:34:50,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:34:50,690 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:34:50,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:34:50,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:34:50,691 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:34:50,691 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 02:34:50,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:34:50,972 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:34:50,975 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:34:50,977 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:34:50,977 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:34:50,978 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c [2020-10-15 02:34:51,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1322a3820/14d3516e615c4f35be8d7ebd916e9aa0/FLAG8b0b6c5dc [2020-10-15 02:34:51,503 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:34:51,503 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c [2020-10-15 02:34:51,513 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1322a3820/14d3516e615c4f35be8d7ebd916e9aa0/FLAG8b0b6c5dc [2020-10-15 02:34:51,905 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1322a3820/14d3516e615c4f35be8d7ebd916e9aa0 [2020-10-15 02:34:51,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:34:51,917 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:34:51,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:34:51,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:34:51,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:34:51,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:34:51" (1/1) ... [2020-10-15 02:34:51,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60808b48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:34:51, skipping insertion in model container [2020-10-15 02:34:51,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:34:51" (1/1) ... [2020-10-15 02:34:51,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:34:51,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:34:52,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:34:52,393 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:34:52,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:34:52,457 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:34:52,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:34:52 WrapperNode [2020-10-15 02:34:52,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:34:52,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:34:52,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:34:52,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:34:52,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:34:52" (1/1) ... [2020-10-15 02:34:52,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:34:52" (1/1) ... [2020-10-15 02:34:52,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:34:52" (1/1) ... [2020-10-15 02:34:52,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:34:52" (1/1) ... [2020-10-15 02:34:52,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:34:52" (1/1) ... [2020-10-15 02:34:52,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:34:52" (1/1) ... [2020-10-15 02:34:52,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:34:52" (1/1) ... [2020-10-15 02:34:52,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:34:52,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:34:52,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:34:52,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:34:52,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:34:52" (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 02:34:52,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:34:52,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:34:52,584 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:34:52,585 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:34:52,585 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:34:52,585 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:34:52,585 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:34:52,585 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:34:52,585 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:34:52,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:34:52,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:34:52,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:34:52,586 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:34:52,586 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:34:52,586 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:34:52,587 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:34:52,587 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:34:52,587 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:34:52,587 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:34:52,587 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:34:52,587 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:34:52,588 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:34:52,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:34:52,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:34:53,234 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:34:53,234 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:34:53,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:34:53 BoogieIcfgContainer [2020-10-15 02:34:53,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:34:53,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:34:53,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:34:53,247 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:34:53,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:34:51" (1/3) ... [2020-10-15 02:34:53,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ae3eca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:34:53, skipping insertion in model container [2020-10-15 02:34:53,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:34:52" (2/3) ... [2020-10-15 02:34:53,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ae3eca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:34:53, skipping insertion in model container [2020-10-15 02:34:53,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:34:53" (3/3) ... [2020-10-15 02:34:53,252 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c [2020-10-15 02:34:53,263 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:34:53,271 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:34:53,285 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:34:53,307 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:34:53,307 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:34:53,307 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:34:53,307 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:34:53,308 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:34:53,308 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:34:53,308 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:34:53,308 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:34:53,329 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states. [2020-10-15 02:34:53,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-15 02:34:53,339 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:34:53,340 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] [2020-10-15 02:34:53,341 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:34:53,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:34:53,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1262742084, now seen corresponding path program 1 times [2020-10-15 02:34:53,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:34:53,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1772823555] [2020-10-15 02:34:53,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:34:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:34:53,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:54,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:34:54,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-15 02:34:54,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:34:54,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 652 [2020-10-15 02:34:54,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:34:54,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:34:54,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:34:54,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 02:34:54,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:34:54,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:34:54,469 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-15 02:34:54,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:34:54,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:34:54,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:54,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:34:54,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:34:54,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:34:54,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:34:54,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:34:54,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:34:54,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:34:54,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:34:54,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:34:54,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:34:54,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:34:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:34:54,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:54,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:34:54,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:34:54,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:34:54,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:34:54,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:34:54,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:34:54,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:34:54,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:34:54,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:34:54,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:34:54,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-15 02:34:54,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:34:54,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:54,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:34:54,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:34:54,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:34:54,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:34:54,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:34:54,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:34:54,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:34:54,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:34:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:34:54,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:34:54,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 02:34:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:34:54,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:54,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:34:54,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:34:54,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:34:54,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:34:54,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:34:54,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:34:54,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:34:54,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:34:54,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:34:54,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:34:54,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-15 02:34:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:34:54,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:54,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:34:54,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:34:54,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:34:54,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:34:54,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:34:54,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:34:54,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:34:54,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:34:54,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:34:54,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:34:54,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:34:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:34:54,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:54,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:34:54,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:34:54,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:34:54,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:34:54,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:34:54,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:34:54,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:34:54,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:34:54,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:34:54,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:34:54,769 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 02:34:54,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1772823555] [2020-10-15 02:34:54,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:34:54,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:34:54,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778544173] [2020-10-15 02:34:54,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:34:54,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:34:54,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:34:54,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:34:54,798 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 10 states. [2020-10-15 02:34:55,122 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-15 02:34:56,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:34:56,084 INFO L93 Difference]: Finished difference Result 199 states and 291 transitions. [2020-10-15 02:34:56,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 02:34:56,086 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 49 [2020-10-15 02:34:56,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:34:56,100 INFO L225 Difference]: With dead ends: 199 [2020-10-15 02:34:56,100 INFO L226 Difference]: Without dead ends: 113 [2020-10-15 02:34:56,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:34:56,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-15 02:34:56,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 101. [2020-10-15 02:34:56,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-15 02:34:56,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 131 transitions. [2020-10-15 02:34:56,159 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 131 transitions. Word has length 49 [2020-10-15 02:34:56,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:34:56,160 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 131 transitions. [2020-10-15 02:34:56,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:34:56,160 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 131 transitions. [2020-10-15 02:34:56,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 02:34:56,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:34:56,163 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] [2020-10-15 02:34:56,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:34:56,164 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:34:56,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:34:56,164 INFO L82 PathProgramCache]: Analyzing trace with hash 172488698, now seen corresponding path program 1 times [2020-10-15 02:34:56,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:34:56,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [531959541] [2020-10-15 02:34:56,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:34:56,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:34:56,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:56,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:56,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:56,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:01,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:01,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-15 02:35:01,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:35:01,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:35:01,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:01,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:01,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:35:01,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-15 02:35:01,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 02:35:01,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:35:01,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:35:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:01,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:01,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:01,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:35:01,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:01,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:35:01,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:01,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:01,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:01,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:01,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:01,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:01,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:35:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:01,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:01,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:01,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:35:01,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:01,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 02:35:01,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:01,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:01,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:35:01,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:01,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:35:01,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:01,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 02:35:01,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:01,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:01,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:01,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:01,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:01,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:35:01,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:01,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:01,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:35:01,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:35:01,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:35:01,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:01,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-15 02:35:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:01,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:01,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:01,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:01,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:01,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:35:01,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:01,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:01,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:35:01,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:35:01,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:35:01,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:01,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-15 02:35:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:01,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:01,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:01,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:01,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:01,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:35:01,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:01,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:01,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:35:01,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:35:01,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:35:01,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:01,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:35:01,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:01,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:01,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:01,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:35:01,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:01,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:35:01,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:01,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:01,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:01,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:35:01,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:35:01,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:01,681 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 02:35:01,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [531959541] [2020-10-15 02:35:01,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:35:01,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:35:01,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646271489] [2020-10-15 02:35:01,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:35:01,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:35:01,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:35:01,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:35:01,686 INFO L87 Difference]: Start difference. First operand 101 states and 131 transitions. Second operand 14 states. [2020-10-15 02:35:05,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:35:05,796 INFO L93 Difference]: Finished difference Result 648 states and 920 transitions. [2020-10-15 02:35:05,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-15 02:35:05,797 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 65 [2020-10-15 02:35:05,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:35:05,807 INFO L225 Difference]: With dead ends: 648 [2020-10-15 02:35:05,807 INFO L226 Difference]: Without dead ends: 578 [2020-10-15 02:35:05,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 726 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=596, Invalid=2056, Unknown=0, NotChecked=0, Total=2652 [2020-10-15 02:35:05,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-10-15 02:35:05,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 527. [2020-10-15 02:35:05,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2020-10-15 02:35:05,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 748 transitions. [2020-10-15 02:35:05,893 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 748 transitions. Word has length 65 [2020-10-15 02:35:05,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:35:05,894 INFO L479 AbstractCegarLoop]: Abstraction has 527 states and 748 transitions. [2020-10-15 02:35:05,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:35:05,895 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 748 transitions. [2020-10-15 02:35:05,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-15 02:35:05,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:35:05,906 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] [2020-10-15 02:35:05,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:35:05,906 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:35:05,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:35:05,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1629380142, now seen corresponding path program 1 times [2020-10-15 02:35:05,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:35:05,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [48313504] [2020-10-15 02:35:05,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:35:05,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:05,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:05,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:06,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:06,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:10,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:10,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 02:35:10,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:35:10,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:35:10,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:10,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:10,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:35:10,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-15 02:35:10,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-15 02:35:10,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:11,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:35:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:11,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:11,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:11,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:35:11,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:11,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:35:11,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:11,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:11,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:11,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:11,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:11,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:11,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:35:11,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:11,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:11,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:11,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:35:11,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:11,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:35:11,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:11,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:11,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:11,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:11,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 02:35:11,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:11,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 02:35:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:11,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:11,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:11,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:11,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:11,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:35:11,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:11,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:11,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:11,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:11,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:35:11,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:11,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-15 02:35:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:11,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:11,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:11,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:11,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:11,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:35:11,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:11,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:11,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:11,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:11,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:35:11,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 02:35:11,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-15 02:35:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:11,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:11,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:11,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:11,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:11,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:35:11,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:11,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:11,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:35:11,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:35:11,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:35:11,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:11,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:35:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:11,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:11,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:11,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:11,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:11,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:35:11,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:11,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:11,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:11,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:35:11,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:11,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:11,237 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 02:35:11,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [48313504] [2020-10-15 02:35:11,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:35:11,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:35:11,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561297362] [2020-10-15 02:35:11,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:35:11,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:35:11,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:35:11,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:35:11,240 INFO L87 Difference]: Start difference. First operand 527 states and 748 transitions. Second operand 9 states. [2020-10-15 02:35:12,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:35:12,414 INFO L93 Difference]: Finished difference Result 1461 states and 2085 transitions. [2020-10-15 02:35:12,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 02:35:12,415 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2020-10-15 02:35:12,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:35:12,422 INFO L225 Difference]: With dead ends: 1461 [2020-10-15 02:35:12,422 INFO L226 Difference]: Without dead ends: 965 [2020-10-15 02:35:12,427 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-10-15 02:35:12,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2020-10-15 02:35:12,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 928. [2020-10-15 02:35:12,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 928 states. [2020-10-15 02:35:12,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1311 transitions. [2020-10-15 02:35:12,515 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1311 transitions. Word has length 66 [2020-10-15 02:35:12,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:35:12,517 INFO L479 AbstractCegarLoop]: Abstraction has 928 states and 1311 transitions. [2020-10-15 02:35:12,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:35:12,517 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1311 transitions. [2020-10-15 02:35:12,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 02:35:12,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:35:12,528 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] [2020-10-15 02:35:12,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:35:12,529 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:35:12,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:35:12,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1281747908, now seen corresponding path program 1 times [2020-10-15 02:35:12,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:35:12,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [589596285] [2020-10-15 02:35:12,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:35:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:12,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:12,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:12,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:15,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:15,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 02:35:15,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:35:15,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2810 [2020-10-15 02:35:15,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:15,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:15,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:35:15,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-15 02:35:15,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 02:35:15,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:15,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:35:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:15,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:15,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:15,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:35:15,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:15,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:35:15,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:15,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:15,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:15,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:15,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:15,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:35:15,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:35:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:15,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:15,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:15,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:35:15,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:15,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:35:15,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:15,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:15,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:15,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:15,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:35:15,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:15,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 02:35:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:15,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:15,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:15,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:15,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:15,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:35:15,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:15,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:15,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:35:15,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:35:15,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:35:15,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:15,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-15 02:35:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:15,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:15,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:15,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:15,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:15,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:35:15,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:15,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:15,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:15,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:35:15,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:15,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:15,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-15 02:35:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:15,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:15,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:15,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:35:15,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:15,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:35:15,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:15,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:15,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:15,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:35:15,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:15,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:15,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-15 02:35:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:15,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:15,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:15,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:15,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:15,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:35:15,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:15,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:15,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:15,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:35:15,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:15,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:15,641 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 02:35:15,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [589596285] [2020-10-15 02:35:15,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:35:15,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:35:15,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870080314] [2020-10-15 02:35:15,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:35:15,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:35:15,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:35:15,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:35:15,646 INFO L87 Difference]: Start difference. First operand 928 states and 1311 transitions. Second operand 9 states. [2020-10-15 02:35:16,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:35:16,837 INFO L93 Difference]: Finished difference Result 2598 states and 3667 transitions. [2020-10-15 02:35:16,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 02:35:16,838 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-15 02:35:16,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:35:16,852 INFO L225 Difference]: With dead ends: 2598 [2020-10-15 02:35:16,853 INFO L226 Difference]: Without dead ends: 1701 [2020-10-15 02:35:16,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-15 02:35:16,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1701 states. [2020-10-15 02:35:16,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1701 to 1643. [2020-10-15 02:35:16,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1643 states. [2020-10-15 02:35:16,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1643 states to 1643 states and 2288 transitions. [2020-10-15 02:35:16,980 INFO L78 Accepts]: Start accepts. Automaton has 1643 states and 2288 transitions. Word has length 67 [2020-10-15 02:35:16,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:35:16,980 INFO L479 AbstractCegarLoop]: Abstraction has 1643 states and 2288 transitions. [2020-10-15 02:35:16,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:35:16,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1643 states and 2288 transitions. [2020-10-15 02:35:16,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-15 02:35:16,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:35:16,983 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] [2020-10-15 02:35:16,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:35:16,984 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:35:16,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:35:16,984 INFO L82 PathProgramCache]: Analyzing trace with hash 33034320, now seen corresponding path program 1 times [2020-10-15 02:35:16,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:35:16,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1740603656] [2020-10-15 02:35:16,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:35:17,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:17,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:17,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:17,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:17,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-15 02:35:17,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:35:17,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 749 [2020-10-15 02:35:17,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:17,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:17,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:35:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-15 02:35:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-15 02:35:17,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:17,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:35:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:17,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:17,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:17,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:35:17,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:17,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:35:17,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:17,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:17,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:17,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:17,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:17,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:17,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:35:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:17,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:17,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:17,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:35:17,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:17,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:35:17,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:17,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:17,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:17,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:17,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:35:17,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:17,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 02:35:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:17,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:17,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:17,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:35:17,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:17,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:35:17,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:17,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:17,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:17,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:17,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:35:17,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:17,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 02:35:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:17,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:17,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:17,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:17,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:17,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:35:17,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:17,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:17,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:35:17,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:35:17,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:35:17,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:17,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 02:35:17,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:17,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:17,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:17,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:35:17,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:17,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:35:17,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:17,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:17,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:17,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:35:17,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:17,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:17,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:35:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:17,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:17,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:17,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:17,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:17,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:35:17,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:17,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:17,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:17,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:35:17,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:17,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:17,996 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 02:35:17,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1740603656] [2020-10-15 02:35:17,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:35:17,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:35:17,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50907279] [2020-10-15 02:35:17,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:35:17,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:35:17,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:35:18,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:35:18,000 INFO L87 Difference]: Start difference. First operand 1643 states and 2288 transitions. Second operand 9 states. [2020-10-15 02:35:19,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:35:19,124 INFO L93 Difference]: Finished difference Result 4579 states and 6358 transitions. [2020-10-15 02:35:19,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 02:35:19,125 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-10-15 02:35:19,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:35:19,142 INFO L225 Difference]: With dead ends: 4579 [2020-10-15 02:35:19,142 INFO L226 Difference]: Without dead ends: 2967 [2020-10-15 02:35:19,149 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-15 02:35:19,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2967 states. [2020-10-15 02:35:19,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2967 to 2881. [2020-10-15 02:35:19,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2881 states. [2020-10-15 02:35:19,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 3932 transitions. [2020-10-15 02:35:19,352 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 3932 transitions. Word has length 68 [2020-10-15 02:35:19,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:35:19,357 INFO L479 AbstractCegarLoop]: Abstraction has 2881 states and 3932 transitions. [2020-10-15 02:35:19,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:35:19,358 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 3932 transitions. [2020-10-15 02:35:19,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-15 02:35:19,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:35:19,359 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] [2020-10-15 02:35:19,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:35:19,360 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:35:19,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:35:19,360 INFO L82 PathProgramCache]: Analyzing trace with hash 561213146, now seen corresponding path program 1 times [2020-10-15 02:35:19,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:35:19,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276633967] [2020-10-15 02:35:19,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:35:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:19,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:19,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:19,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:19,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-15 02:35:19,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:35:19,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 446 [2020-10-15 02:35:19,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:19,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:19,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:35:19,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-15 02:35:19,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-15 02:35:19,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:19,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:35:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:19,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:19,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:19,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:35:19,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:19,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:35:19,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:19,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:19,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:19,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:19,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:19,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:19,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:35:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:19,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:19,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:19,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:35:19,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:19,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:35:19,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:19,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:19,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:19,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:19,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 02:35:19,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:20,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 02:35:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:20,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:20,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:20,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:35:20,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:20,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:35:20,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:20,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:20,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:35:20,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:20,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:35:20,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:20,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 02:35:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:20,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:20,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:20,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:35:20,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:20,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:35:20,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:20,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:20,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:35:20,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:20,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:35:20,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:20,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:35:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:20,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:20,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:20,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:35:20,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:20,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:35:20,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:20,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:20,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:20,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:35:20,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:35:20,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:20,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-15 02:35:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:20,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:20,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:20,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:20,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:20,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:35:20,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:20,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:20,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:20,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:35:20,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:20,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:20,160 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 02:35:20,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276633967] [2020-10-15 02:35:20,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:35:20,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 02:35:20,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874908300] [2020-10-15 02:35:20,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 02:35:20,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:35:20,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 02:35:20,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-15 02:35:20,163 INFO L87 Difference]: Start difference. First operand 2881 states and 3932 transitions. Second operand 12 states. [2020-10-15 02:35:25,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:35:25,815 INFO L93 Difference]: Finished difference Result 17949 states and 25533 transitions. [2020-10-15 02:35:25,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-15 02:35:25,816 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 69 [2020-10-15 02:35:25,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:35:25,909 INFO L225 Difference]: With dead ends: 17949 [2020-10-15 02:35:25,909 INFO L226 Difference]: Without dead ends: 15099 [2020-10-15 02:35:25,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1060 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=594, Invalid=2828, Unknown=0, NotChecked=0, Total=3422 [2020-10-15 02:35:25,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15099 states. [2020-10-15 02:35:27,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15099 to 14889. [2020-10-15 02:35:27,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14889 states. [2020-10-15 02:35:27,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14889 states to 14889 states and 19432 transitions. [2020-10-15 02:35:27,132 INFO L78 Accepts]: Start accepts. Automaton has 14889 states and 19432 transitions. Word has length 69 [2020-10-15 02:35:27,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:35:27,133 INFO L479 AbstractCegarLoop]: Abstraction has 14889 states and 19432 transitions. [2020-10-15 02:35:27,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 02:35:27,133 INFO L276 IsEmpty]: Start isEmpty. Operand 14889 states and 19432 transitions. [2020-10-15 02:35:27,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-15 02:35:27,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:35:27,135 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:35:27,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:35:27,135 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:35:27,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:35:27,136 INFO L82 PathProgramCache]: Analyzing trace with hash 230168201, now seen corresponding path program 1 times [2020-10-15 02:35:27,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:35:27,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [5623903] [2020-10-15 02:35:27,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:35:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:27,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:27,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:27,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-15 02:35:27,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:27,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-15 02:35:27,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:27,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:27,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:35:27,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-15 02:35:27,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:35:27,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:27,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:35:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:27,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:27,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:27,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:35:27,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:27,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:35:27,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:27,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:27,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:27,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:27,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:27,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:27,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:35:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:27,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:27,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:27,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:35:27,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:27,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:35:27,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:27,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:27,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:27,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:27,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:27,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:27,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 02:35:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:27,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:27,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:27,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:35:27,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:27,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:35:27,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:27,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:27,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:27,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:27,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:27,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:27,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 02:35:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:27,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:27,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:27,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:35:27,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:27,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:35:27,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:27,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:27,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:27,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:27,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:27,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:27,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:35:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:27,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:27,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:27,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:35:27,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:27,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:35:27,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:27,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:27,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:27,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:27,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:27,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:27,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:35:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:27,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:27,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:27,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:27,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:27,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:35:27,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:27,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:27,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:35:27,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:27,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:35:27,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:27,649 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 02:35:27,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [5623903] [2020-10-15 02:35:27,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:35:27,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 02:35:27,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653115927] [2020-10-15 02:35:27,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 02:35:27,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:35:27,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 02:35:27,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-15 02:35:27,651 INFO L87 Difference]: Start difference. First operand 14889 states and 19432 transitions. Second operand 12 states. [2020-10-15 02:35:29,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:35:29,658 INFO L93 Difference]: Finished difference Result 18681 states and 25199 transitions. [2020-10-15 02:35:29,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 02:35:29,658 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 70 [2020-10-15 02:35:29,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:35:29,773 INFO L225 Difference]: With dead ends: 18681 [2020-10-15 02:35:29,774 INFO L226 Difference]: Without dead ends: 18679 [2020-10-15 02:35:29,792 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:35:29,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18679 states. [2020-10-15 02:35:31,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18679 to 16617. [2020-10-15 02:35:31,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16617 states. [2020-10-15 02:35:31,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16617 states to 16617 states and 21160 transitions. [2020-10-15 02:35:31,446 INFO L78 Accepts]: Start accepts. Automaton has 16617 states and 21160 transitions. Word has length 70 [2020-10-15 02:35:31,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:35:31,447 INFO L479 AbstractCegarLoop]: Abstraction has 16617 states and 21160 transitions. [2020-10-15 02:35:31,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 02:35:31,447 INFO L276 IsEmpty]: Start isEmpty. Operand 16617 states and 21160 transitions. [2020-10-15 02:35:31,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-15 02:35:31,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:35:31,449 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] [2020-10-15 02:35:31,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:35:31,449 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:35:31,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:35:31,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1738669819, now seen corresponding path program 1 times [2020-10-15 02:35:31,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:35:31,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25517342] [2020-10-15 02:35:31,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:35:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:31,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:31,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:31,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 02:35:31,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:31,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-15 02:35:31,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:31,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:31,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:35:31,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 02:35:31,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:35:31,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:31,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:35:31,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:31,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:31,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:31,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:35:31,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:31,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:35:31,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:31,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:31,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:31,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:31,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:31,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:31,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:35:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:31,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:31,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:31,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:35:31,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:31,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:35:31,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:31,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:31,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:31,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:31,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 02:35:31,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:31,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 02:35:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:31,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:31,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:31,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:35:31,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:31,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:35:31,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:31,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:31,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:35:31,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:35:31,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:35:31,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:31,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 02:35:31,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:31,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:31,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:31,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:35:31,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:31,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:35:31,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:31,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:31,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:31,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:31,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:35:31,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:31,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:35:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:31,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:31,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:31,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:35:31,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:31,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:35:31,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:31,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:31,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:31,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:31,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:35:31,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:31,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:35:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:31,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:31,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:31,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:35:31,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:31,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:35:31,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:31,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:31,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:31,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:35:31,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:35:31,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:31,845 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 02:35:31,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25517342] [2020-10-15 02:35:31,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:35:31,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:35:31,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096321873] [2020-10-15 02:35:31,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:35:31,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:35:31,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:35:31,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:35:31,848 INFO L87 Difference]: Start difference. First operand 16617 states and 21160 transitions. Second operand 9 states. [2020-10-15 02:35:34,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:35:34,352 INFO L93 Difference]: Finished difference Result 46525 states and 59937 transitions. [2020-10-15 02:35:34,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 02:35:34,353 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-15 02:35:34,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:35:34,481 INFO L225 Difference]: With dead ends: 46525 [2020-10-15 02:35:34,481 INFO L226 Difference]: Without dead ends: 29991 [2020-10-15 02:35:34,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2020-10-15 02:35:34,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29991 states. [2020-10-15 02:35:36,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29991 to 29565. [2020-10-15 02:35:36,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29565 states. [2020-10-15 02:35:36,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29565 states to 29565 states and 38088 transitions. [2020-10-15 02:35:36,088 INFO L78 Accepts]: Start accepts. Automaton has 29565 states and 38088 transitions. Word has length 71 [2020-10-15 02:35:36,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:35:36,089 INFO L479 AbstractCegarLoop]: Abstraction has 29565 states and 38088 transitions. [2020-10-15 02:35:36,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:35:36,090 INFO L276 IsEmpty]: Start isEmpty. Operand 29565 states and 38088 transitions. [2020-10-15 02:35:36,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-15 02:35:36,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:35:36,109 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:35:36,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:35:36,110 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:35:36,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:35:36,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1494643089, now seen corresponding path program 1 times [2020-10-15 02:35:36,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:35:36,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1131327435] [2020-10-15 02:35:36,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:35:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:36,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:36,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:37,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:37,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-15 02:35:37,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:35:37,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1406 [2020-10-15 02:35:37,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:37,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:37,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:35:37,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 02:35:37,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-15 02:35:37,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:37,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:35:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:37,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:37,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:37,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:35:37,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:37,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:35:37,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:37,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:37,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:37,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:37,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:37,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:37,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:35:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:37,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:37,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:37,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:35:37,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:37,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:35:37,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:37,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:37,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:37,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:37,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 02:35:37,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:37,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 02:35:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:37,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:37,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:37,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:35:37,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:37,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:35:37,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:37,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:37,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:35:37,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:35:37,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:35:37,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:37,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 02:35:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:37,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:37,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:37,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:35:37,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:37,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:35:37,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:37,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:37,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:37,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:37,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:35:37,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:37,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:35:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:37,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:37,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:37,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:35:37,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:37,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:35:37,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:37,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:37,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:37,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:37,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:35:37,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:37,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:35:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:37,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:37,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:37,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:37,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:37,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:35:37,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:37,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:37,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:37,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:37,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:35:37,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:37,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:35:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:37,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:37,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:37,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:35:37,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:37,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:35:37,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:37,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:37,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:37,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:37,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:35:37,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:37,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:35:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:37,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:37,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:37,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:37,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:37,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:35:37,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:37,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:37,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:35:37,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:35:37,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:35:37,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:37,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:35:37,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:37,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:37,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:37,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:37,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:37,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:35:37,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:37,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:37,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:37,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:37,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:35:37,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:37,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-15 02:35:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:37,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:37,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:37,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:37,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:37,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:35:37,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:37,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:37,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:37,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:37,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:35:37,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:37,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-15 02:35:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:37,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:37,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:37,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:35:37,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:37,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:35:37,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:37,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:37,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:37,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:35:37,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:35:37,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:37,916 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 02:35:37,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1131327435] [2020-10-15 02:35:37,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:35:37,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-15 02:35:37,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747770154] [2020-10-15 02:35:37,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:35:37,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:35:37,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:35:37,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:35:37,921 INFO L87 Difference]: Start difference. First operand 29565 states and 38088 transitions. Second operand 11 states. [2020-10-15 02:35:41,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:35:41,512 INFO L93 Difference]: Finished difference Result 68111 states and 87822 transitions. [2020-10-15 02:35:41,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-15 02:35:41,513 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 108 [2020-10-15 02:35:41,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:35:41,692 INFO L225 Difference]: With dead ends: 68111 [2020-10-15 02:35:41,692 INFO L226 Difference]: Without dead ends: 43441 [2020-10-15 02:35:41,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=202, Invalid=554, Unknown=0, NotChecked=0, Total=756 [2020-10-15 02:35:41,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43441 states. [2020-10-15 02:35:45,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43441 to 42829. [2020-10-15 02:35:45,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42829 states. [2020-10-15 02:35:45,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42829 states to 42829 states and 55020 transitions. [2020-10-15 02:35:45,350 INFO L78 Accepts]: Start accepts. Automaton has 42829 states and 55020 transitions. Word has length 108 [2020-10-15 02:35:45,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:35:45,350 INFO L479 AbstractCegarLoop]: Abstraction has 42829 states and 55020 transitions. [2020-10-15 02:35:45,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:35:45,350 INFO L276 IsEmpty]: Start isEmpty. Operand 42829 states and 55020 transitions. [2020-10-15 02:35:45,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-15 02:35:45,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:35:45,357 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:35:45,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:35:45,357 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:35:45,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:35:45,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1082013579, now seen corresponding path program 1 times [2020-10-15 02:35:45,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:35:45,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [167422797] [2020-10-15 02:35:45,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:35:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:45,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:45,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:45,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:46,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:48,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:50,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:50,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-15 02:35:50,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:35:50,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 02:35:50,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:50,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:50,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:35:50,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:35:50,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-15 02:35:50,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:50,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:35:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:50,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:50,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:50,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:35:50,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:50,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:35:50,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:50,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:50,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:50,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:50,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:35:50,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:50,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:35:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:50,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:50,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:50,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:35:50,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:50,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:35:50,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:50,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:50,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:35:50,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:50,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:35:50,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:50,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 02:35:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:50,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:50,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:50,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:35:50,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:50,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:35:50,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:50,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:50,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:50,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:50,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:35:50,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:50,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 02:35:50,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:50,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:50,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:50,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:35:50,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:50,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:35:50,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:50,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:50,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:35:50,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:35:50,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:35:50,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:50,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:35:50,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:50,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:50,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:50,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:35:50,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:50,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:35:50,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:50,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:50,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:50,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:50,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:35:50,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:50,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:35:50,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:50,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:50,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:50,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:50,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:50,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:35:50,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:50,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:50,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:50,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:50,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:35:50,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:50,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:35:50,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:50,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:50,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:50,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:35:50,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:50,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:35:50,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:50,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:50,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:50,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:50,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:35:50,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:50,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:35:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:50,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:50,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:50,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:50,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:50,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:35:50,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:50,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:50,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:50,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:50,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:35:50,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:50,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:35:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:50,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:50,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:50,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:50,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:50,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:35:50,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:50,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:50,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:50,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:50,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:35:50,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:50,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-15 02:35:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:50,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:50,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:50,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:35:50,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:50,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:35:50,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:50,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:50,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:35:50,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:35:50,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:35:50,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:50,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-15 02:35:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:50,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:50,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:50,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:35:50,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:50,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:35:50,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:50,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:50,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:50,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:35:50,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:50,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:50,862 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-15 02:35:50,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [167422797] [2020-10-15 02:35:50,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:35:50,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-15 02:35:50,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371664750] [2020-10-15 02:35:50,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:35:50,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:35:50,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:35:50,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:35:50,865 INFO L87 Difference]: Start difference. First operand 42829 states and 55020 transitions. Second operand 15 states. [2020-10-15 02:35:51,107 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2020-10-15 02:35:51,708 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-10-15 02:35:52,275 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 96 [2020-10-15 02:35:52,446 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-15 02:35:52,612 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-10-15 02:35:53,056 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-15 02:35:54,134 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-10-15 02:35:56,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:35:56,788 INFO L93 Difference]: Finished difference Result 106639 states and 137083 transitions. [2020-10-15 02:35:56,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-15 02:35:56,788 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 109 [2020-10-15 02:35:56,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:35:57,076 INFO L225 Difference]: With dead ends: 106639 [2020-10-15 02:35:57,077 INFO L226 Difference]: Without dead ends: 63893 [2020-10-15 02:35:57,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=459, Invalid=1263, Unknown=0, NotChecked=0, Total=1722 [2020-10-15 02:35:57,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63893 states. [2020-10-15 02:36:01,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63893 to 62088. [2020-10-15 02:36:01,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62088 states. [2020-10-15 02:36:01,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62088 states to 62088 states and 79228 transitions. [2020-10-15 02:36:01,869 INFO L78 Accepts]: Start accepts. Automaton has 62088 states and 79228 transitions. Word has length 109 [2020-10-15 02:36:01,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:36:01,870 INFO L479 AbstractCegarLoop]: Abstraction has 62088 states and 79228 transitions. [2020-10-15 02:36:01,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 02:36:01,870 INFO L276 IsEmpty]: Start isEmpty. Operand 62088 states and 79228 transitions. [2020-10-15 02:36:01,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-15 02:36:01,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:36:01,881 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:36:01,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:36:01,881 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:36:01,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:36:01,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1651881325, now seen corresponding path program 1 times [2020-10-15 02:36:01,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:36:01,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1822419058] [2020-10-15 02:36:01,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:36:01,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:01,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:01,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:02,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:02,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:04,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:06,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:06,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-15 02:36:06,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:36:06,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 02:36:06,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:06,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:06,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:36:06,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:36:06,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-15 02:36:06,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:07,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:36:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:07,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:07,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:07,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:36:07,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:07,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:36:07,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:07,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:07,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:07,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:07,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:07,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:07,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:36:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:07,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:07,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:07,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:36:07,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:07,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:36:07,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:07,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:07,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:07,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:07,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:36:07,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:07,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 02:36:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:07,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:07,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:07,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:07,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:07,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:36:07,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:07,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:07,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:07,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:07,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:36:07,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:07,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 02:36:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:07,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:07,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:07,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:36:07,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:07,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 02:36:07,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:07,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:07,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:36:07,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:36:07,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:36:07,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:07,366 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 36 [2020-10-15 02:36:07,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:36:07,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:07,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:07,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:07,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:07,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:07,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:36:07,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:07,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:07,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:07,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:07,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:36:07,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:07,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:36:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:07,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:07,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:07,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:07,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:07,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:36:07,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:07,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:07,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:07,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:07,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:36:07,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:07,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:36:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:07,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:07,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:07,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:36:07,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:07,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:36:07,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:07,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:07,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:07,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:07,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:36:07,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:07,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:36:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:07,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:07,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:07,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:07,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:07,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:36:07,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:07,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:07,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:07,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:07,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:36:07,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:07,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:36:07,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:07,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:07,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:07,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:36:07,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:07,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:36:07,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:07,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:07,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:07,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:07,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:36:07,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:07,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-15 02:36:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:07,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:07,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:07,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:07,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:07,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:36:07,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:07,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:07,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:36:07,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:36:07,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:36:07,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:07,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-15 02:36:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:07,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:07,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:07,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:36:07,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:07,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:36:07,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:07,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:07,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:07,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:36:07,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:07,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:07,575 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-15 02:36:07,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1822419058] [2020-10-15 02:36:07,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:36:07,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-15 02:36:07,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070425083] [2020-10-15 02:36:07,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:36:07,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:36:07,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:36:07,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:36:07,577 INFO L87 Difference]: Start difference. First operand 62088 states and 79228 transitions. Second operand 15 states. [2020-10-15 02:36:09,252 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 122 DAG size of output: 107 [2020-10-15 02:36:10,786 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 109 [2020-10-15 02:36:12,878 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:36:18,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:36:18,666 INFO L93 Difference]: Finished difference Result 219725 states and 280313 transitions. [2020-10-15 02:36:18,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-15 02:36:18,666 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 109 [2020-10-15 02:36:18,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:36:19,225 INFO L225 Difference]: With dead ends: 219725 [2020-10-15 02:36:19,225 INFO L226 Difference]: Without dead ends: 163106 [2020-10-15 02:36:19,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=479, Invalid=1971, Unknown=0, NotChecked=0, Total=2450 [2020-10-15 02:36:19,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163106 states. [2020-10-15 02:36:30,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163106 to 153177. [2020-10-15 02:36:30,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153177 states. [2020-10-15 02:36:30,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153177 states to 153177 states and 195913 transitions. [2020-10-15 02:36:30,480 INFO L78 Accepts]: Start accepts. Automaton has 153177 states and 195913 transitions. Word has length 109 [2020-10-15 02:36:30,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:36:30,481 INFO L479 AbstractCegarLoop]: Abstraction has 153177 states and 195913 transitions. [2020-10-15 02:36:30,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 02:36:30,481 INFO L276 IsEmpty]: Start isEmpty. Operand 153177 states and 195913 transitions. [2020-10-15 02:36:30,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-15 02:36:30,500 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:36:30,500 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:36:30,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:36:30,500 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:36:30,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:36:30,500 INFO L82 PathProgramCache]: Analyzing trace with hash -34298513, now seen corresponding path program 1 times [2020-10-15 02:36:30,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:36:30,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1141110051] [2020-10-15 02:36:30,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:36:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:30,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:30,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:30,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:31,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:32,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:35,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:35,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-15 02:36:35,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:36:35,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5106 [2020-10-15 02:36:35,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:35,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:35,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:36:35,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:36:35,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-15 02:36:35,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:35,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:36:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:35,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:35,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:35,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:36:35,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:35,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:36:35,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:35,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:35,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:35,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:35,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:36:35,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:35,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:36:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:35,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:35,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:35,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:36:35,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:35,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:36:35,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:35,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:35,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:36:35,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:35,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:36:35,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:35,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 02:36:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:35,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:35,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:35,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:35,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:35,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:36:35,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:35,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:35,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:36:35,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:36:35,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:36:35,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:35,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 02:36:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:35,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:35,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:35,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:36:35,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:35,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:36:35,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:35,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:35,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:35,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:35,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:36:35,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:36,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:36:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:36,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:36,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:36,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:36,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:36,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:36:36,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:36,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:36,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:36,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:36,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:36:36,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:36,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:36:36,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:36,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:36,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:36,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:36,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:36,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:36:36,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:36,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:36,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:36,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:36,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:36:36,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:36,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:36:36,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:36,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:36,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:36,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:36:36,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:36,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:36:36,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:36,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:36,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:36,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:36,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:36:36,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:36,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:36:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:36,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:36,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:36,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:36,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:36,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:36:36,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:36,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:36,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:36,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:36,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:36:36,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:36,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:36:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:36,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:36,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:36,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:36:36,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:36,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:36:36,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:36,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:36,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:36:36,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:36:36,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:36:36,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:36,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-15 02:36:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:36,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:36,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:36,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:36,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:36,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:36:36,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:36,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:36,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:36,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:36:36,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:36,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:36,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-15 02:36:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:36,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:36,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:36,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:36:36,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:36,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:36:36,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:36,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:36,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:36,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:36:36,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:36,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:36,229 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-15 02:36:36,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1141110051] [2020-10-15 02:36:36,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:36:36,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-15 02:36:36,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526798697] [2020-10-15 02:36:36,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:36:36,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:36:36,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:36:36,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:36:36,234 INFO L87 Difference]: Start difference. First operand 153177 states and 195913 transitions. Second operand 15 states. [2020-10-15 02:36:50,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:36:50,297 INFO L93 Difference]: Finished difference Result 410949 states and 529716 transitions. [2020-10-15 02:36:50,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-15 02:36:50,297 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 109 [2020-10-15 02:36:50,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:36:51,202 INFO L225 Difference]: With dead ends: 410949 [2020-10-15 02:36:51,203 INFO L226 Difference]: Without dead ends: 280591 [2020-10-15 02:36:51,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=474, Invalid=1332, Unknown=0, NotChecked=0, Total=1806 [2020-10-15 02:36:51,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280591 states. [2020-10-15 02:37:07,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280591 to 241642. [2020-10-15 02:37:07,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241642 states. [2020-10-15 02:37:08,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241642 states to 241642 states and 309116 transitions. [2020-10-15 02:37:08,485 INFO L78 Accepts]: Start accepts. Automaton has 241642 states and 309116 transitions. Word has length 109 [2020-10-15 02:37:08,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:37:08,486 INFO L479 AbstractCegarLoop]: Abstraction has 241642 states and 309116 transitions. [2020-10-15 02:37:08,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 02:37:08,486 INFO L276 IsEmpty]: Start isEmpty. Operand 241642 states and 309116 transitions. [2020-10-15 02:37:08,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-15 02:37:08,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:37:08,501 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:37:08,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 02:37:08,501 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:37:08,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:37:08,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1565902471, now seen corresponding path program 1 times [2020-10-15 02:37:08,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:37:08,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1538500083] [2020-10-15 02:37:08,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:37:08,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:08,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:08,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:08,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:09,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:15,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:15,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-15 02:37:15,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:37:15,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7326 [2020-10-15 02:37:15,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:15,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:15,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:37:15,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:37:15,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-15 02:37:15,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:37:16,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:37:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:16,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:16,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:16,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:37:16,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:16,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:37:16,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:16,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:16,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:37:16,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:16,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:37:16,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:37:16,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:37:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:16,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:16,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:16,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:37:16,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:16,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:37:16,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:16,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:16,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:37:16,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:16,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:37:16,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-15 02:37:16,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 02:37:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:16,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:16,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:16,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:37:16,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:16,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:37:16,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:16,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:16,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:37:16,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:16,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:37:16,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:37:16,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-15 02:37:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:16,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:16,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:16,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:37:16,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:16,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:37:16,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:16,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:16,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:37:16,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:16,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:37:16,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:16,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:37:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:16,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:16,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:16,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:37:16,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:16,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:37:16,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:16,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:16,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:37:16,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:37:16,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:37:16,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:16,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:37:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:16,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:16,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:16,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:37:16,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:16,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:37:16,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:16,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:16,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:37:16,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:16,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:37:16,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:37:16,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:37:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:16,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:16,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:16,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:37:16,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:16,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:37:16,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:16,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:16,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:37:16,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:16,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:37:16,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:16,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:37:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:16,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:16,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:16,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:37:16,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:16,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:37:16,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:16,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:16,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:37:16,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:37:16,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:37:16,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:16,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-15 02:37:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:16,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:16,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:16,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:37:16,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:16,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:37:16,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:16,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:16,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:37:16,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:37:16,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:37:16,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:16,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-15 02:37:16,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:16,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:16,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:16,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:37:16,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:16,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:37:16,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:16,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:16,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:37:16,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:37:16,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:37:16,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:37:16,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-15 02:37:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:16,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:16,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:16,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:37:16,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:16,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:37:16,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:16,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:16,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:37:16,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:37:16,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:37:16,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:37:16,350 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-15 02:37:16,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1538500083] [2020-10-15 02:37:16,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:37:16,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-15 02:37:16,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818994093] [2020-10-15 02:37:16,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:37:16,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:37:16,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:37:16,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:37:16,352 INFO L87 Difference]: Start difference. First operand 241642 states and 309116 transitions. Second operand 15 states. [2020-10-15 02:37:16,558 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2020-10-15 02:37:16,998 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-10-15 02:37:17,177 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 96 [2020-10-15 02:37:17,909 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-15 02:37:31,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:37:31,614 INFO L93 Difference]: Finished difference Result 490140 states and 622116 transitions. [2020-10-15 02:37:31,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-15 02:37:31,615 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 109 [2020-10-15 02:37:31,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:37:32,411 INFO L225 Difference]: With dead ends: 490140 [2020-10-15 02:37:32,411 INFO L226 Difference]: Without dead ends: 290835 [2020-10-15 02:37:32,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=342, Invalid=918, Unknown=0, NotChecked=0, Total=1260 [2020-10-15 02:37:32,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290835 states. [2020-10-15 02:37:51,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290835 to 275429. [2020-10-15 02:37:51,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275429 states. [2020-10-15 02:37:52,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275429 states to 275429 states and 347669 transitions. [2020-10-15 02:37:52,325 INFO L78 Accepts]: Start accepts. Automaton has 275429 states and 347669 transitions. Word has length 109 [2020-10-15 02:37:52,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:37:52,326 INFO L479 AbstractCegarLoop]: Abstraction has 275429 states and 347669 transitions. [2020-10-15 02:37:52,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 02:37:52,326 INFO L276 IsEmpty]: Start isEmpty. Operand 275429 states and 347669 transitions. [2020-10-15 02:37:52,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-15 02:37:52,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:37:52,345 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:37:52,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 02:37:52,345 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:37:52,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:37:52,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1162419584, now seen corresponding path program 1 times [2020-10-15 02:37:52,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:37:52,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [854512237] [2020-10-15 02:37:52,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:37:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:52,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:52,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:52,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:54,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:57,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:57,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-15 02:37:57,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:37:57,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 02:37:57,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:57,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:57,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-15 02:37:57,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:37:57,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-15 02:37:57,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:57,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:37:57,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:57,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:57,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:57,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:37:57,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:57,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:37:57,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:57,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:57,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:37:57,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:57,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:37:57,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:57,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:37:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:57,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:57,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:57,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:37:57,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:57,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:37:57,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:57,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:57,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:37:57,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:57,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:37:57,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:57,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 02:37:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:57,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:57,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:57,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:37:57,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:57,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:37:57,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:57,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:57,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:37:57,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:57,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:37:57,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:57,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 02:37:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:57,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:57,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:57,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:37:57,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:57,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:37:57,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:57,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:57,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:37:57,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:37:57,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:37:57,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:57,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:37:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:57,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:57,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:57,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:37:57,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:57,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:37:57,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:57,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:57,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:37:57,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:57,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:37:57,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:57,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:37:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:57,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:57,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:57,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:37:57,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:57,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:37:57,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:57,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:57,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:37:57,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:57,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:37:57,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:57,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-15 02:37:57,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:57,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:57,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:57,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:37:57,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:57,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:37:57,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:57,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:57,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:37:57,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:57,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:37:57,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:57,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-15 02:37:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:57,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:57,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:57,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:37:57,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:57,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:37:57,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:57,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:57,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:37:57,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:57,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:37:57,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:57,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:37:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:57,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:57,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:57,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:37:57,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:57,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:37:57,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:57,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:57,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:37:57,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:57,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:37:57,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:57,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-15 02:37:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:57,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:57,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:57,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:37:57,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:57,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:37:57,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:57,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:57,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:37:57,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:37:57,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:37:57,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:57,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-15 02:37:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:57,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:57,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:57,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:37:57,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:57,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:37:57,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:57,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:57,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:37:57,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:37:57,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:37:57,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:57,862 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-15 02:37:57,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [854512237] [2020-10-15 02:37:57,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:37:57,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-15 02:37:57,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846850912] [2020-10-15 02:37:57,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-15 02:37:57,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:37:57,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-15 02:37:57,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2020-10-15 02:37:57,864 INFO L87 Difference]: Start difference. First operand 275429 states and 347669 transitions. Second operand 18 states. [2020-10-15 02:38:00,454 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56