/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=BIGGEST --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_floodmax.4.4.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:37:42,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:37:42,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:37:42,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:37:42,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:37:42,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:37:42,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:37:42,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:37:42,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:37:42,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:37:42,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:37:42,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:37:42,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:37:42,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:37:42,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:37:42,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:37:42,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:37:42,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:37:42,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:37:42,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:37:42,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:37:42,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:37:42,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:37:42,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:37:42,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:37:42,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:37:42,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:37:42,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:37:42,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:37:42,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:37:42,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:37:42,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:37:42,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:37:42,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:37:42,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:37:42,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:37:42,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:37:42,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:37:42,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:37:42,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:37:42,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:37:42,640 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 [2020-10-12 18:37:42,661 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:37:42,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:37:42,662 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:37:42,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:37:42,662 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:37:42,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:37:42,663 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:37:42,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:37:42,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:37:42,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:37:42,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:37:42,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:37:42,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:37:42,664 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:37:42,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:37:42,665 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:37:42,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:37:42,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:37:42,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:37:42,665 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:37:42,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:37:42,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:37:42,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:37:42,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:37:42,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:37:42,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:37:42,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:37:42,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:37:42,667 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:37:42,667 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:37:42,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:37:42,953 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:37:42,958 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:37:42,960 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:37:42,961 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:37:42,962 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c [2020-10-12 18:37:43,023 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d5ac14d5/0fa4e9dcfe414819ac30c70b92e2b1dc/FLAGb4c6515e6 [2020-10-12 18:37:43,552 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:37:43,553 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c [2020-10-12 18:37:43,566 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d5ac14d5/0fa4e9dcfe414819ac30c70b92e2b1dc/FLAGb4c6515e6 [2020-10-12 18:37:43,799 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d5ac14d5/0fa4e9dcfe414819ac30c70b92e2b1dc [2020-10-12 18:37:43,808 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:37:43,809 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:37:43,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:37:43,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:37:43,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:37:43,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:37:43" (1/1) ... [2020-10-12 18:37:43,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1694a7ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:37:43, skipping insertion in model container [2020-10-12 18:37:43,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:37:43" (1/1) ... [2020-10-12 18:37:43,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:37:43,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:37:44,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:37:44,281 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:37:44,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:37:44,404 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:37:44,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:37:44 WrapperNode [2020-10-12 18:37:44,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:37:44,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:37:44,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:37:44,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:37:44,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:37:44" (1/1) ... [2020-10-12 18:37:44,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:37:44" (1/1) ... [2020-10-12 18:37:44,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:37:44" (1/1) ... [2020-10-12 18:37:44,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:37:44" (1/1) ... [2020-10-12 18:37:44,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:37:44" (1/1) ... [2020-10-12 18:37:44,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:37:44" (1/1) ... [2020-10-12 18:37:44,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:37:44" (1/1) ... [2020-10-12 18:37:44,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:37:44,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:37:44,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:37:44,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:37:44,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:37:44" (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 [2020-10-12 18:37:44,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:37:44,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:37:44,604 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 18:37:44,604 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:37:44,604 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:37:44,605 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:37:44,606 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-12 18:37:44,607 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:37:44,607 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:37:44,607 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:37:44,607 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:37:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:37:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:37:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-12 18:37:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:37:44,609 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:37:44,610 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:37:44,610 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 18:37:44,610 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:37:44,610 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:37:44,610 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:37:44,611 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:37:44,611 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:37:44,611 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 18:37:44,611 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:37:44,612 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:37:44,612 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:37:44,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:37:44,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:37:45,934 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:37:45,934 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:37:45,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:37:45 BoogieIcfgContainer [2020-10-12 18:37:45,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:37:45,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:37:45,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:37:45,945 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:37:45,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:37:43" (1/3) ... [2020-10-12 18:37:45,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45db473e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:37:45, skipping insertion in model container [2020-10-12 18:37:45,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:37:44" (2/3) ... [2020-10-12 18:37:45,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45db473e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:37:45, skipping insertion in model container [2020-10-12 18:37:45,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:37:45" (3/3) ... [2020-10-12 18:37:45,949 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.4.ufo.UNBOUNDED.pals.c [2020-10-12 18:37:45,957 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:37:45,965 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:37:45,979 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:37:46,004 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:37:46,005 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:37:46,005 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:37:46,005 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:37:46,005 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:37:46,006 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:37:46,006 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:37:46,006 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:37:46,030 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states. [2020-10-12 18:37:46,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-12 18:37:46,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:37:46,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:37:46,048 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:37:46,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:37:46,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1386901003, now seen corresponding path program 1 times [2020-10-12 18:37:46,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:37:46,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1355485504] [2020-10-12 18:37:46,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:37:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:46,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:46,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:46,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 18:37:46,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:46,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 479 [2020-10-12 18:37:46,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:46,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:46,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-12 18:37:46,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:46,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:37:47,522 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:37:47,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:37:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:47,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:47,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:47,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:37:47,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:47,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 18:37:47,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:47,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:47,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:47,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:47,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:47,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:37:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:47,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:47,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:47,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 18:37:47,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:47,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 18:37:47,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:47,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:47,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:47,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:47,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:47,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:37:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:47,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:47,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:47,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:37:47,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:47,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:37:47,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:47,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:47,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:37:47,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:47,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:47,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:37:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:47,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:47,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:47,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:47,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:47,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:37:47,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:47,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:47,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:37:47,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:47,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:47,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:37:47,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:47,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:47,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:47,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:47,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:47,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:37:47,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:47,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:47,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:37:47,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:47,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:47,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:37:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:47,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:47,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:47,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:47,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:47,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:37:47,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:47,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:47,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:37:47,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:47,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:47,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-12 18:37:47,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:47,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:47,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:47,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:47,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:47,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:37:47,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:47,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:47,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:37:47,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:47,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:47,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-12 18:37:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:47,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:47,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:47,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:47,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:47,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:37:47,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:47,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:47,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:37:47,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:47,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:47,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:37:47,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1355485504] [2020-10-12 18:37:47,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:37:47,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 18:37:47,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683503001] [2020-10-12 18:37:47,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 18:37:47,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:37:47,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 18:37:47,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 18:37:47,969 INFO L87 Difference]: Start difference. First operand 341 states. Second operand 7 states. [2020-10-12 18:37:50,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:37:50,199 INFO L93 Difference]: Finished difference Result 508 states and 855 transitions. [2020-10-12 18:37:50,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 18:37:50,203 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 104 [2020-10-12 18:37:50,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:37:50,239 INFO L225 Difference]: With dead ends: 508 [2020-10-12 18:37:50,239 INFO L226 Difference]: Without dead ends: 368 [2020-10-12 18:37:50,244 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:37:50,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-10-12 18:37:50,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 336. [2020-10-12 18:37:50,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-10-12 18:37:50,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 579 transitions. [2020-10-12 18:37:50,344 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 579 transitions. Word has length 104 [2020-10-12 18:37:50,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:37:50,344 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 579 transitions. [2020-10-12 18:37:50,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 18:37:50,345 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 579 transitions. [2020-10-12 18:37:50,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-12 18:37:50,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:37:50,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:37:50,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:37:50,350 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:37:50,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:37:50,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1810547725, now seen corresponding path program 1 times [2020-10-12 18:37:50,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:37:50,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1547469733] [2020-10-12 18:37:50,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:37:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:50,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:51,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:51,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 18:37:51,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:51,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1239 [2020-10-12 18:37:51,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:51,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:37:51,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-12 18:37:51,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:37:51,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:51,989 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:37:51,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:37:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:52,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:52,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:52,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:37:52,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:52,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 18:37:52,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:52,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:52,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:52,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:52,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:52,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:37:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:52,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:52,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:52,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 18:37:52,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:52,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-12 18:37:52,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:52,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:37:52,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:52,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 18:37:52,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:52,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:37:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:52,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:52,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:52,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:37:52,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:52,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:37:52,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:52,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:37:52,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:37:52,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:37:52,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:52,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:37:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:52,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:52,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:52,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:52,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:52,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:37:52,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:52,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:52,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:37:52,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:52,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:52,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:37:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:52,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:52,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:52,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:52,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:52,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:37:52,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:52,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:52,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:37:52,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:52,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:52,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:37:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:52,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:52,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:52,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:52,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:52,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:37:52,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:52,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:52,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:37:52,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:52,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:52,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-12 18:37:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:52,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:52,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:52,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:52,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:52,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:37:52,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:52,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:52,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:37:52,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:52,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:52,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-12 18:37:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:52,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:52,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:52,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:52,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:52,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:37:52,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:52,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:52,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:37:52,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:52,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:52,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:37:52,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1547469733] [2020-10-12 18:37:52,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:37:52,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:37:52,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849586456] [2020-10-12 18:37:52,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:37:52,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:37:52,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:37:52,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:37:52,732 INFO L87 Difference]: Start difference. First operand 336 states and 579 transitions. Second operand 13 states. [2020-10-12 18:37:54,850 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:37:55,211 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2020-10-12 18:37:55,632 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:37:55,970 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 18:37:58,013 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:37:58,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:37:58,645 INFO L93 Difference]: Finished difference Result 506 states and 847 transitions. [2020-10-12 18:37:58,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 18:37:58,646 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 104 [2020-10-12 18:37:58,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:37:58,650 INFO L225 Difference]: With dead ends: 506 [2020-10-12 18:37:58,650 INFO L226 Difference]: Without dead ends: 368 [2020-10-12 18:37:58,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-12 18:37:58,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-10-12 18:37:58,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 336. [2020-10-12 18:37:58,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-10-12 18:37:58,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 537 transitions. [2020-10-12 18:37:58,692 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 537 transitions. Word has length 104 [2020-10-12 18:37:58,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:37:58,692 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 537 transitions. [2020-10-12 18:37:58,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:37:58,692 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 537 transitions. [2020-10-12 18:37:58,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-12 18:37:58,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:37:58,696 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:37:58,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:37:58,696 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:37:58,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:37:58,697 INFO L82 PathProgramCache]: Analyzing trace with hash -348312971, now seen corresponding path program 1 times [2020-10-12 18:37:58,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:37:58,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856929519] [2020-10-12 18:37:58,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:37:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:58,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:59,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:59,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:00,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:00,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:03,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:03,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-12 18:38:03,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:38:03,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 18:38:03,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:03,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 18:38:03,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 18:38:03,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 18:38:03,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:38:04,121 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:38:04,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:38:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:04,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:04,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:04,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:38:04,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:04,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:38:04,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:04,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:04,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:04,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:04,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:38:04,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:38:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:04,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:04,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:04,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:38:04,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:04,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-10-12 18:38:04,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:04,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:38:04,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:04,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 18:38:04,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:04,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:38:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:04,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:04,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:04,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:38:04,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:04,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:38:04,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:04,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:04,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:04,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:38:04,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:04,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:38:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:04,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:04,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:04,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:04,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:04,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:38:04,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:04,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:04,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:04,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:38:04,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:04,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:38:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:04,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:04,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:04,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:04,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:04,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:38:04,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:04,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:04,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:04,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:38:04,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:04,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:38:04,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:04,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:04,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:04,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:04,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:04,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 18:38:04,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:04,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:04,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:04,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:38:04,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:38:04,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:38:04,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:04,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:04,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:04,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:04,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:04,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:38:04,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:04,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:04,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:04,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:38:04,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:04,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:38:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:04,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:04,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:04,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:04,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:04,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:38:04,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:04,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:04,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:38:04,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:38:04,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 18:38:05,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:38:05,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856929519] [2020-10-12 18:38:05,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:38:05,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:38:05,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255605243] [2020-10-12 18:38:05,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:38:05,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:38:05,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:38:05,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:38:05,005 INFO L87 Difference]: Start difference. First operand 336 states and 537 transitions. Second operand 16 states. [2020-10-12 18:38:05,382 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:38:07,128 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:38:07,436 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:38:07,811 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:38:08,551 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:38:09,064 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:38:09,925 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:38:10,217 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:38:12,650 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:38:13,024 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2020-10-12 18:38:13,370 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 18:38:13,704 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:38:14,912 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:38:17,025 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:38:17,323 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:38:18,665 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:38:19,123 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:38:19,286 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:38:19,594 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:38:20,642 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:38:20,922 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:38:22,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:38:22,925 INFO L93 Difference]: Finished difference Result 1839 states and 2943 transitions. [2020-10-12 18:38:22,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2020-10-12 18:38:22,925 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 145 [2020-10-12 18:38:22,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:38:22,937 INFO L225 Difference]: With dead ends: 1839 [2020-10-12 18:38:22,938 INFO L226 Difference]: Without dead ends: 1707 [2020-10-12 18:38:22,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2000 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=1277, Invalid=4885, Unknown=0, NotChecked=0, Total=6162 [2020-10-12 18:38:22,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2020-10-12 18:38:23,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1367. [2020-10-12 18:38:23,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2020-10-12 18:38:23,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 2198 transitions. [2020-10-12 18:38:23,061 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 2198 transitions. Word has length 145 [2020-10-12 18:38:23,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:38:23,061 INFO L479 AbstractCegarLoop]: Abstraction has 1367 states and 2198 transitions. [2020-10-12 18:38:23,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:38:23,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 2198 transitions. [2020-10-12 18:38:23,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-12 18:38:23,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:38:23,066 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:38:23,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:38:23,066 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:38:23,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:38:23,067 INFO L82 PathProgramCache]: Analyzing trace with hash -893995987, now seen corresponding path program 1 times [2020-10-12 18:38:23,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:38:23,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [654387391] [2020-10-12 18:38:23,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:38:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:23,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:23,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:23,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:23,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:24,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:28,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:28,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-12 18:38:28,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:38:28,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-12 18:38:28,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:28,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:38:28,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 18:38:28,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 18:38:28,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:28,502 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:38:28,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:38:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:28,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:28,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:28,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:38:28,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:28,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:38:28,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:28,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:28,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:28,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:28,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:28,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:38:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:28,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:28,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:28,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:38:28,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:28,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-12 18:38:28,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:28,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:38:28,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:28,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 18:38:28,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:28,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:38:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:28,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:28,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:28,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:38:28,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:28,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:38:28,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:28,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:28,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:28,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:38:28,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:28,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:38:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:28,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:28,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:28,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:28,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:28,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:38:28,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:28,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:28,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:28,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:38:28,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:28,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:38:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:28,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:28,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:28,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:28,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:28,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:38:28,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:28,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:28,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:28,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:38:28,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:28,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:38:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:28,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:28,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:28,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:28,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:28,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:38:28,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:28,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:28,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:28,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:38:28,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:28,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:38:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:28,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:28,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:28,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:28,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:28,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:38:28,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:28,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:28,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:28,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:38:28,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:28,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:38:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:28,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:28,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:28,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:38:28,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:28,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:38:28,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:28,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:28,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 18:38:28,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:38:28,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:38:29,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:38:29,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [654387391] [2020-10-12 18:38:29,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:38:29,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:38:29,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224104466] [2020-10-12 18:38:29,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:38:29,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:38:29,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:38:29,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:38:29,062 INFO L87 Difference]: Start difference. First operand 1367 states and 2198 transitions. Second operand 11 states. [2020-10-12 18:38:29,384 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:38:31,123 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:38:31,931 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:38:34,911 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:38:35,238 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:38:35,898 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:38:39,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:38:39,030 INFO L93 Difference]: Finished difference Result 5369 states and 8552 transitions. [2020-10-12 18:38:39,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 18:38:39,031 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 146 [2020-10-12 18:38:39,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:38:39,053 INFO L225 Difference]: With dead ends: 5369 [2020-10-12 18:38:39,053 INFO L226 Difference]: Without dead ends: 4206 [2020-10-12 18:38:39,058 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 18:38:39,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4206 states. [2020-10-12 18:38:39,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4206 to 3389. [2020-10-12 18:38:39,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3389 states. [2020-10-12 18:38:39,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3389 states to 3389 states and 5437 transitions. [2020-10-12 18:38:39,268 INFO L78 Accepts]: Start accepts. Automaton has 3389 states and 5437 transitions. Word has length 146 [2020-10-12 18:38:39,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:38:39,270 INFO L479 AbstractCegarLoop]: Abstraction has 3389 states and 5437 transitions. [2020-10-12 18:38:39,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:38:39,270 INFO L276 IsEmpty]: Start isEmpty. Operand 3389 states and 5437 transitions. [2020-10-12 18:38:39,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-12 18:38:39,273 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:38:39,273 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:38:39,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:38:39,274 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:38:39,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:38:39,274 INFO L82 PathProgramCache]: Analyzing trace with hash -681985236, now seen corresponding path program 1 times [2020-10-12 18:38:39,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:38:39,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [241217744] [2020-10-12 18:38:39,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:38:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:39,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:39,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:39,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:40,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:40,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:44,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:44,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-12 18:38:44,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:38:44,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 18:38:44,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:44,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:38:44,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-12 18:38:44,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 18:38:44,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:44,785 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:38:44,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:38:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:44,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:44,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:44,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:38:44,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:44,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:38:44,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:44,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:44,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:44,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:44,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:38:44,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:38:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:44,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:45,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:45,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:38:45,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:45,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-12 18:38:45,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:45,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:38:45,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:45,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 18:38:45,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:38:45,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:38:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:45,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:45,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:45,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:38:45,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:45,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:38:45,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:45,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:45,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:45,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:38:45,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:38:45,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:38:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:45,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:45,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:45,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:45,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:45,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:38:45,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:45,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:45,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:45,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:38:45,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:38:45,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:38:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:45,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:45,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:45,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:45,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:45,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:38:45,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:45,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:45,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:45,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:38:45,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:45,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:38:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:45,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:45,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:45,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:45,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:45,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:38:45,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:45,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:45,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:45,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:38:45,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:38:45,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:38:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:45,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:45,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:45,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:45,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:45,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:38:45,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:45,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:45,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:45,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:38:45,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:38:45,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:38:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:45,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:45,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:45,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:38:45,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:45,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:38:45,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:45,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:45,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:38:45,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:38:45,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:38:45,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:38:45,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [241217744] [2020-10-12 18:38:45,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:38:45,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:38:45,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135493659] [2020-10-12 18:38:45,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:38:45,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:38:45,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:38:45,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:38:45,506 INFO L87 Difference]: Start difference. First operand 3389 states and 5437 transitions. Second operand 11 states. [2020-10-12 18:38:46,025 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:38:47,929 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:38:51,204 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:38:51,508 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:38:55,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:38:55,913 INFO L93 Difference]: Finished difference Result 15646 states and 24831 transitions. [2020-10-12 18:38:55,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 18:38:55,914 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 147 [2020-10-12 18:38:55,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:38:55,973 INFO L225 Difference]: With dead ends: 15646 [2020-10-12 18:38:55,973 INFO L226 Difference]: Without dead ends: 12461 [2020-10-12 18:38:55,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-12 18:38:55,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12461 states. [2020-10-12 18:38:56,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12461 to 9960. [2020-10-12 18:38:56,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9960 states. [2020-10-12 18:38:56,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9960 states to 9960 states and 15924 transitions. [2020-10-12 18:38:56,576 INFO L78 Accepts]: Start accepts. Automaton has 9960 states and 15924 transitions. Word has length 147 [2020-10-12 18:38:56,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:38:56,577 INFO L479 AbstractCegarLoop]: Abstraction has 9960 states and 15924 transitions. [2020-10-12 18:38:56,577 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:38:56,577 INFO L276 IsEmpty]: Start isEmpty. Operand 9960 states and 15924 transitions. [2020-10-12 18:38:56,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-12 18:38:56,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:38:56,581 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:38:56,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:38:56,581 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:38:56,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:38:56,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1543695812, now seen corresponding path program 1 times [2020-10-12 18:38:56,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:38:56,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [367261384] [2020-10-12 18:38:56,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:38:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:56,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:56,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:56,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:57,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:58,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:01,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:01,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-12 18:39:01,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:39:01,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-12 18:39:01,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:01,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:39:01,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-12 18:39:01,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 18:39:01,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:02,114 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:39:02,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:39:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:02,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:02,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:02,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:39:02,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:02,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:39:02,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:02,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:02,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:02,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:02,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:02,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:39:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:02,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:02,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:02,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:39:02,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:02,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-12 18:39:02,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:02,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:39:02,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:02,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 18:39:02,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:02,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:39:02,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:02,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:02,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:02,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:39:02,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:02,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:39:02,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:02,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:02,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:02,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:39:02,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:02,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:39:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:02,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:02,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:02,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:02,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:02,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:39:02,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:02,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:02,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:02,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:39:02,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:02,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:39:02,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:02,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:02,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:02,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:02,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:02,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:39:02,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:02,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:02,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:02,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:39:02,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:02,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:39:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:02,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:02,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:02,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:02,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:02,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:39:02,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:02,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:39:02,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:39:02,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:39:02,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:02,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:39:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:02,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:02,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:02,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:02,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:02,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:39:02,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:02,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:02,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:02,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:39:02,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:02,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:39:02,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:02,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:02,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:02,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:39:02,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:02,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:39:02,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:02,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:02,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 18:39:02,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:39:02,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:02,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:39:02,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [367261384] [2020-10-12 18:39:02,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:39:02,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:39:02,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415883252] [2020-10-12 18:39:02,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:39:02,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:39:02,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:39:02,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:39:02,551 INFO L87 Difference]: Start difference. First operand 9960 states and 15924 transitions. Second operand 11 states. [2020-10-12 18:39:02,905 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:39:04,672 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:39:05,695 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:39:07,533 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:39:07,840 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:39:13,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:39:13,170 INFO L93 Difference]: Finished difference Result 54019 states and 85417 transitions. [2020-10-12 18:39:13,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 18:39:13,171 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 148 [2020-10-12 18:39:13,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:39:14,134 INFO L225 Difference]: With dead ends: 54019 [2020-10-12 18:39:14,134 INFO L226 Difference]: Without dead ends: 44263 [2020-10-12 18:39:14,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 18:39:14,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44263 states. [2020-10-12 18:39:15,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44263 to 35282. [2020-10-12 18:39:15,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35282 states. [2020-10-12 18:39:15,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35282 states to 35282 states and 56225 transitions. [2020-10-12 18:39:15,864 INFO L78 Accepts]: Start accepts. Automaton has 35282 states and 56225 transitions. Word has length 148 [2020-10-12 18:39:15,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:39:15,865 INFO L479 AbstractCegarLoop]: Abstraction has 35282 states and 56225 transitions. [2020-10-12 18:39:15,865 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:39:15,865 INFO L276 IsEmpty]: Start isEmpty. Operand 35282 states and 56225 transitions. [2020-10-12 18:39:15,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-12 18:39:15,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:39:15,870 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:39:15,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:39:15,870 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:39:15,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:39:15,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1768646627, now seen corresponding path program 1 times [2020-10-12 18:39:15,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:39:15,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [537896049] [2020-10-12 18:39:15,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:39:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:15,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:16,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:16,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:16,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:16,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:20,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:20,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-12 18:39:20,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:39:20,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 18:39:20,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:20,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:39:20,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-12 18:39:20,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 18:39:20,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:21,301 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:39:21,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:39:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:21,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:21,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:21,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:39:21,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:21,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:39:21,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:21,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:21,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:21,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:21,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:21,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:39:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:21,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:21,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:21,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:39:21,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:21,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-12 18:39:21,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:21,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:39:21,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:21,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-12 18:39:21,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:21,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:39:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:21,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:21,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:21,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:39:21,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:21,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:39:21,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:21,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:21,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:21,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:39:21,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:21,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:39:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:21,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:21,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:21,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:21,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:21,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:39:21,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:21,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:21,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:21,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:39:21,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:21,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:39:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:21,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:21,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:21,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:21,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:21,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:39:21,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:21,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:21,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:21,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:39:21,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:21,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:39:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:21,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:21,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:21,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:21,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:21,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:39:21,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:21,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:21,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:21,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:39:21,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:21,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:39:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:21,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:21,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:21,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:21,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:21,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:39:21,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:21,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:39:21,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:39:21,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:39:21,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:21,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:39:21,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:21,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:21,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:21,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:39:21,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:21,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:39:21,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:21,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:21,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:39:21,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:39:21,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:21,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:39:21,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [537896049] [2020-10-12 18:39:21,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:39:21,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:39:21,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828241287] [2020-10-12 18:39:21,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:39:21,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:39:21,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:39:21,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:39:21,696 INFO L87 Difference]: Start difference. First operand 35282 states and 56225 transitions. Second operand 11 states. [2020-10-12 18:39:22,021 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:39:23,828 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:39:26,102 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:39:26,414 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:39:29,095 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:39:36,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:39:36,600 INFO L93 Difference]: Finished difference Result 229374 states and 362427 transitions. [2020-10-12 18:39:36,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 18:39:36,601 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 149 [2020-10-12 18:39:36,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:39:37,150 INFO L225 Difference]: With dead ends: 229374 [2020-10-12 18:39:37,150 INFO L226 Difference]: Without dead ends: 194296 [2020-10-12 18:39:37,302 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-12 18:39:37,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194296 states. [2020-10-12 18:39:42,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194296 to 154652. [2020-10-12 18:39:42,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154652 states. [2020-10-12 18:39:46,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154652 states to 154652 states and 246632 transitions. [2020-10-12 18:39:46,716 INFO L78 Accepts]: Start accepts. Automaton has 154652 states and 246632 transitions. Word has length 149 [2020-10-12 18:39:46,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:39:46,717 INFO L479 AbstractCegarLoop]: Abstraction has 154652 states and 246632 transitions. [2020-10-12 18:39:46,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:39:46,717 INFO L276 IsEmpty]: Start isEmpty. Operand 154652 states and 246632 transitions. [2020-10-12 18:39:46,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-12 18:39:46,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:39:46,722 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:39:46,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:39:46,723 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:39:46,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:39:46,723 INFO L82 PathProgramCache]: Analyzing trace with hash 815109716, now seen corresponding path program 1 times [2020-10-12 18:39:46,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:39:46,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2103516115] [2020-10-12 18:39:46,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:39:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:46,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:46,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:46,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:46,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:47,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:47,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:47,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:51,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:51,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:51,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-12 18:39:51,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:39:51,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-12 18:39:51,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:51,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:39:51,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-12 18:39:51,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 18:39:51,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:52,137 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:39:52,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:39:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:52,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:52,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:52,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:39:52,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:52,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:39:52,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:52,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:52,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:39:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:52,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:52,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:52,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:39:52,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:52,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-12 18:39:52,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:52,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:39:52,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:52,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 18:39:52,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:52,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:39:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:52,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:52,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:52,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:39:52,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:52,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:39:52,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:52,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:52,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:52,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:39:52,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:52,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:39:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:52,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:52,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:52,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:52,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:39:52,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:39:52,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 18:39:52,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:39:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:39:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:39:52,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:39:52,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:39:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:52,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:52,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:52,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:52,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:52,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:39:52,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:52,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:39:52,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:39:52,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:39:52,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:52,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:39:52,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:52,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:52,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:52,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:52,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:52,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:39:52,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:52,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:39:52,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:39:52,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:39:52,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:52,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 18:39:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:52,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:52,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:52,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:52,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:52,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:39:52,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:52,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:39:52,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:39:52,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:39:52,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:52,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-12 18:39:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:52,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:52,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:52,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:52,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:52,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:39:52,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:52,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:52,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:39:52,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:39:52,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:52,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:39:52,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2103516115] [2020-10-12 18:39:52,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:39:52,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-12 18:39:52,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180498952] [2020-10-12 18:39:52,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-12 18:39:52,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:39:52,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-12 18:39:52,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2020-10-12 18:39:52,832 INFO L87 Difference]: Start difference. First operand 154652 states and 246632 transitions. Second operand 18 states. [2020-10-12 18:39:53,197 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 18:39:55,426 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:39:55,746 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:39:56,075 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:39:56,708 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:39:56,858 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:39:58,083 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2020-10-12 18:39:58,426 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:39:58,695 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:39:58,841 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:39:59,800 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:40:00,236 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:40:01,361 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 18:40:01,893 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:40:02,200 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:40:03,806 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-12 18:40:04,304 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:40:04,468 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:40:04,614 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:40:05,191 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 18:40:05,915 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 18:40:06,607 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:40:06,935 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:40:07,587 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2020-10-12 18:40:08,528 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 18:40:08,917 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2020-10-12 18:40:09,284 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2020-10-12 18:40:10,712 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:40:10,863 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:40:11,011 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:40:11,505 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:40:11,794 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:40:11,960 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:40:12,236 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:40:13,646 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:40:14,396 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:40:15,652 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:40:16,183 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:40:17,155 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:40:17,352 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:40:17,524 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 18:40:17,781 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:40:18,138 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:40:18,493 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:40:18,887 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:40:19,774 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:40:21,036 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:40:21,207 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:40:21,420 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:40:21,605 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:40:21,868 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:40:22,238 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:40:22,608 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:40:22,771 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:40:23,300 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:40:24,073 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:40:24,814 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:40:25,158 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:40:25,341 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:40:25,534 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:40:25,704 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:40:25,950 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:40:27,000 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:40:39,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:40:39,901 INFO L93 Difference]: Finished difference Result 535953 states and 858571 transitions. [2020-10-12 18:40:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2020-10-12 18:40:39,902 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 151 [2020-10-12 18:40:39,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:40:40,893 INFO L225 Difference]: With dead ends: 535953 [2020-10-12 18:40:40,893 INFO L226 Difference]: Without dead ends: 381505 [2020-10-12 18:40:41,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7146 ImplicationChecksByTransitivity, 17.4s TimeCoverageRelationStatistics Valid=2645, Invalid=15987, Unknown=0, NotChecked=0, Total=18632 [2020-10-12 18:40:41,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381505 states. [2020-10-12 18:40:57,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381505 to 285515. [2020-10-12 18:40:57,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285515 states. [2020-10-12 18:41:03,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285515 states to 285515 states and 455196 transitions. [2020-10-12 18:41:03,218 INFO L78 Accepts]: Start accepts. Automaton has 285515 states and 455196 transitions. Word has length 151 [2020-10-12 18:41:03,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:41:03,218 INFO L479 AbstractCegarLoop]: Abstraction has 285515 states and 455196 transitions. [2020-10-12 18:41:03,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-12 18:41:03,219 INFO L276 IsEmpty]: Start isEmpty. Operand 285515 states and 455196 transitions. [2020-10-12 18:41:03,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-12 18:41:03,225 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:41:03,225 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:41:03,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:41:03,225 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:41:03,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:41:03,226 INFO L82 PathProgramCache]: Analyzing trace with hash -789980940, now seen corresponding path program 1 times [2020-10-12 18:41:03,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:41:03,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208058151] [2020-10-12 18:41:03,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:41:03,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:03,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:03,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:03,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:03,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:04,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:04,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:05,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:05,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:06,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:06,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking...