/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_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 19:01:41,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 19:01:41,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 19:01:41,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 19:01:41,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 19:01:41,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 19:01:41,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 19:01:41,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 19:01:41,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 19:01:41,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 19:01:41,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 19:01:41,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 19:01:41,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 19:01:41,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 19:01:41,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 19:01:41,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 19:01:41,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 19:01:41,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 19:01:41,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 19:01:41,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 19:01:41,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 19:01:41,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 19:01:41,639 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 19:01:41,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 19:01:41,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 19:01:41,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 19:01:41,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 19:01:41,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 19:01:41,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 19:01:41,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 19:01:41,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 19:01:41,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 19:01:41,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 19:01:41,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 19:01:41,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 19:01:41,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 19:01:41,667 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 19:01:41,667 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 19:01:41,667 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 19:01:41,668 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 19:01:41,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 19:01:41,670 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 19:01:41,706 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 19:01:41,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 19:01:41,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 19:01:41,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 19:01:41,708 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 19:01:41,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 19:01:41,709 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 19:01:41,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 19:01:41,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 19:01:41,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 19:01:41,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 19:01:41,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 19:01:41,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 19:01:41,711 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 19:01:41,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 19:01:41,711 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 19:01:41,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 19:01:41,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 19:01:41,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 19:01:41,712 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 19:01:41,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 19:01:41,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 19:01:41,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 19:01:41,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 19:01:41,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 19:01:41,713 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 19:01:41,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 19:01:41,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 19:01:41,714 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 19:01:41,714 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 19:01:41,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 19:01:41,995 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 19:01:41,999 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 19:01:42,000 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 19:01:42,001 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 19:01:42,002 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c [2020-10-12 19:01:42,068 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5274d27aa/c0977ae9ba3a4047b1a7f0efca4facc3/FLAG597613a75 [2020-10-12 19:01:42,647 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 19:01:42,648 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c [2020-10-12 19:01:42,672 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5274d27aa/c0977ae9ba3a4047b1a7f0efca4facc3/FLAG597613a75 [2020-10-12 19:01:42,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5274d27aa/c0977ae9ba3a4047b1a7f0efca4facc3 [2020-10-12 19:01:42,953 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 19:01:42,955 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 19:01:42,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 19:01:42,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 19:01:42,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 19:01:42,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:01:42" (1/1) ... [2020-10-12 19:01:42,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15e98a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:01:42, skipping insertion in model container [2020-10-12 19:01:42,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:01:42" (1/1) ... [2020-10-12 19:01:42,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 19:01:43,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 19:01:43,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:01:43,685 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 19:01:43,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:01:43,938 INFO L208 MainTranslator]: Completed translation [2020-10-12 19:01:43,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:01:43 WrapperNode [2020-10-12 19:01:43,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 19:01:43,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 19:01:43,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 19:01:43,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 19:01:43,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:01:43" (1/1) ... [2020-10-12 19:01:43,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:01:43" (1/1) ... [2020-10-12 19:01:43,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:01:43" (1/1) ... [2020-10-12 19:01:43,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:01:43" (1/1) ... [2020-10-12 19:01:44,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:01:43" (1/1) ... [2020-10-12 19:01:44,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:01:43" (1/1) ... [2020-10-12 19:01:44,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:01:43" (1/1) ... [2020-10-12 19:01:44,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 19:01:44,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 19:01:44,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 19:01:44,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 19:01:44,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:01:43" (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 19:01:44,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 19:01:44,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 19:01:44,181 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 19:01:44,181 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 19:01:44,181 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 19:01:44,182 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 19:01:44,182 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-12 19:01:44,183 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-12 19:01:44,183 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 19:01:44,183 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 19:01:44,183 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 19:01:44,184 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 19:01:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 19:01:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 19:01:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 19:01:44,185 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 19:01:44,186 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 19:01:44,186 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 19:01:44,186 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 19:01:44,186 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 19:01:44,186 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 19:01:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 19:01:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 19:01:44,188 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 19:01:44,188 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-12 19:01:44,188 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 19:01:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 19:01:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 19:01:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 19:01:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 19:01:46,461 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 19:01:46,461 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 19:01:46,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:01:46 BoogieIcfgContainer [2020-10-12 19:01:46,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 19:01:46,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 19:01:46,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 19:01:46,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 19:01:46,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:01:42" (1/3) ... [2020-10-12 19:01:46,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e979c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:01:46, skipping insertion in model container [2020-10-12 19:01:46,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:01:43" (2/3) ... [2020-10-12 19:01:46,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e979c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:01:46, skipping insertion in model container [2020-10-12 19:01:46,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:01:46" (3/3) ... [2020-10-12 19:01:46,479 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c [2020-10-12 19:01:46,489 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 19:01:46,497 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 19:01:46,508 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 19:01:46,535 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 19:01:46,535 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 19:01:46,535 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 19:01:46,535 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 19:01:46,536 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 19:01:46,536 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 19:01:46,536 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 19:01:46,536 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 19:01:46,571 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states. [2020-10-12 19:01:46,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-12 19:01:46,597 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:01:46,598 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:01:46,599 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:01:46,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:01:46,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1964386708, now seen corresponding path program 1 times [2020-10-12 19:01:46,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:01:46,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202241918] [2020-10-12 19:01:46,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:01:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:47,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:47,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:47,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-12 19:01:47,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:47,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 792 [2020-10-12 19:01:47,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:47,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:47,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-12 19:01:47,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:47,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 19:01:48,952 WARN L193 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-12 19:01:48,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:01:48,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:49,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:49,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:49,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:01:49,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:49,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 19:01:49,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:49,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:49,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:49,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:49,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:49,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:01:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:49,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:49,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:49,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 19:01:49,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:49,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-12 19:01:49,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:49,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:49,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:49,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:49,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:01:49,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 19:01:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:49,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:49,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:49,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:01:49,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:49,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 19:01:49,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:49,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:49,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 19:01:49,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:49,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:49,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-12 19:01:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:49,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:49,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:49,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:49,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:49,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:01:49,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:49,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:49,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:01:49,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:49,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:49,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-12 19:01:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:49,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:49,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:49,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:49,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:49,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:01:49,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:49,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:49,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:01:49,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:49,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:49,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-12 19:01:49,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:49,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:49,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:49,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:49,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:49,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:01:49,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:49,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:49,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:01:49,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:49,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:01:49,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-12 19:01:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:49,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:49,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:49,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:49,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:49,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:01:49,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:49,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:49,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:01:49,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:49,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:49,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-12 19:01:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:49,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:49,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:49,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:49,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:49,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 19:01:49,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:49,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:49,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:01:49,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:49,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:49,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-12 19:01:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:49,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:49,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:49,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:01:49,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:49,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 19:01:49,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:49,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:49,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 19:01:49,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:49,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:49,870 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 19:01:49,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202241918] [2020-10-12 19:01:49,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:01:49,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 19:01:49,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610659701] [2020-10-12 19:01:49,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 19:01:49,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:01:49,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 19:01:49,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-12 19:01:49,914 INFO L87 Difference]: Start difference. First operand 773 states. Second operand 8 states. [2020-10-12 19:01:53,245 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:01:53,880 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:01:54,559 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:01:55,254 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:01:55,962 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:01:56,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:01:56,960 INFO L93 Difference]: Finished difference Result 1051 states and 1855 transitions. [2020-10-12 19:01:56,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 19:01:56,963 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2020-10-12 19:01:56,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:01:56,990 INFO L225 Difference]: With dead ends: 1051 [2020-10-12 19:01:56,990 INFO L226 Difference]: Without dead ends: 833 [2020-10-12 19:01:56,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-12 19:01:57,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2020-10-12 19:01:57,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 768. [2020-10-12 19:01:57,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2020-10-12 19:01:57,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1387 transitions. [2020-10-12 19:01:57,219 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1387 transitions. Word has length 187 [2020-10-12 19:01:57,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:01:57,222 INFO L479 AbstractCegarLoop]: Abstraction has 768 states and 1387 transitions. [2020-10-12 19:01:57,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 19:01:57,222 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1387 transitions. [2020-10-12 19:01:57,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-12 19:01:57,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:01:57,232 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:01:57,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 19:01:57,233 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:01:57,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:01:57,233 INFO L82 PathProgramCache]: Analyzing trace with hash -792240558, now seen corresponding path program 1 times [2020-10-12 19:01:57,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:01:57,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [661582866] [2020-10-12 19:01:57,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:01:57,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:57,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:59,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:59,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-12 19:01:59,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:59,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2216 [2020-10-12 19:01:59,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:59,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 19:01:59,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-12 19:01:59,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 19:01:59,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:02:00,563 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-12 19:02:00,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:02:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:00,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:00,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:00,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:02:00,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:00,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 19:02:00,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:00,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:00,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:00,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:00,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:00,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:02:00,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:00,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:01,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:01,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 19:02:01,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:01,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 535 [2020-10-12 19:02:01,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:01,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:01,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:01,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-12 19:02:01,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:01,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 19:02:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:01,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:01,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:01,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:02:01,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:01,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:02:01,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:01,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:01,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 19:02:01,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:02:01,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:01,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-12 19:02:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:01,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:01,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:01,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:01,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:01,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:02:01,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:01,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:01,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:02:01,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:01,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:01,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-12 19:02:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:01,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:01,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:01,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:01,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:01,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:02:01,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:01,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:01,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:02:01,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:01,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:01,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-12 19:02:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:01,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:01,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:01,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:01,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:01,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:02:01,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:01,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:01,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:02:01,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:01,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:01,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-12 19:02:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:01,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:01,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:01,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:01,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:01,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:02:01,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:01,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:01,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:02:01,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:01,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:01,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-12 19:02:01,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:01,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:01,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:01,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:01,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:01,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:02:01,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:01,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:01,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:02:01,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:01,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:01,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-12 19:02:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:01,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:01,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:01,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:02:01,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:01,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 19:02:01,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:01,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:01,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 19:02:01,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:01,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:01,750 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 19:02:01,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [661582866] [2020-10-12 19:02:01,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:02:01,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 19:02:01,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141577668] [2020-10-12 19:02:01,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 19:02:01,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:02:01,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 19:02:01,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:02:01,754 INFO L87 Difference]: Start difference. First operand 768 states and 1387 transitions. Second operand 14 states. [2020-10-12 19:02:09,560 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-12 19:02:10,249 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 375 [2020-10-12 19:02:11,065 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 381 [2020-10-12 19:02:11,771 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-12 19:02:12,897 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:13,587 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:14,442 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:15,303 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:16,153 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:17,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:02:17,464 INFO L93 Difference]: Finished difference Result 1055 states and 1861 transitions. [2020-10-12 19:02:17,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 19:02:17,465 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 187 [2020-10-12 19:02:17,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:02:17,473 INFO L225 Difference]: With dead ends: 1055 [2020-10-12 19:02:17,474 INFO L226 Difference]: Without dead ends: 844 [2020-10-12 19:02:17,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-12 19:02:17,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2020-10-12 19:02:17,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 768. [2020-10-12 19:02:17,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2020-10-12 19:02:17,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1322 transitions. [2020-10-12 19:02:17,606 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1322 transitions. Word has length 187 [2020-10-12 19:02:17,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:02:17,607 INFO L479 AbstractCegarLoop]: Abstraction has 768 states and 1322 transitions. [2020-10-12 19:02:17,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 19:02:17,607 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1322 transitions. [2020-10-12 19:02:17,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-10-12 19:02:17,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:02:17,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:02:17,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 19:02:17,613 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:02:17,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:02:17,613 INFO L82 PathProgramCache]: Analyzing trace with hash 791940016, now seen corresponding path program 1 times [2020-10-12 19:02:17,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:02:17,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1506958712] [2020-10-12 19:02:17,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:02:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:17,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:18,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:18,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:19,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:22,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:22,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-12 19:02:22,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 19:02:22,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5128 [2020-10-12 19:02:22,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:22,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:22,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 154 [2020-10-12 19:02:22,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-12 19:02:22,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:02:23,639 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-12 19:02:23,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:02:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:23,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:23,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:23,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:02:23,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:23,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 19:02:23,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:23,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:23,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:23,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:23,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:23,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:02:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:23,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:24,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:24,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-12 19:02:24,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:24,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-10-12 19:02:24,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:24,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:24,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:24,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-12 19:02:24,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:24,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-12 19:02:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:24,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:24,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:24,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:02:24,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:24,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 19:02:24,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:24,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:24,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:24,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:02:24,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:24,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-12 19:02:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:24,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:24,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:24,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:24,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:24,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:02:24,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:24,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:24,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:24,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:02:24,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:02:24,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-12 19:02:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:24,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:24,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:24,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:24,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:24,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:02:24,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:24,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:24,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:24,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:02:24,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:24,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-12 19:02:24,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:24,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:24,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:24,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:24,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:24,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:02:24,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:24,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:24,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:24,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:02:24,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:24,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-12 19:02:24,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:24,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:24,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:24,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:24,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:24,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 19:02:24,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:24,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:24,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:02:24,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:02:24,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:24,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-10-12 19:02:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:24,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:24,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:24,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:24,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:24,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:02:24,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:24,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:24,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:02:24,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:24,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:24,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-10-12 19:02:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:24,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:24,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:24,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:02:24,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:24,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:02:24,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:24,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:24,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 19:02:24,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:24,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:24,647 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 19:02:24,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1506958712] [2020-10-12 19:02:24,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:02:24,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:02:24,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433339950] [2020-10-12 19:02:24,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:02:24,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:02:24,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:02:24,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:02:24,651 INFO L87 Difference]: Start difference. First operand 768 states and 1322 transitions. Second operand 11 states. [2020-10-12 19:02:25,516 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:02:31,370 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:02:31,891 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:02:32,552 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:02:33,170 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:33,659 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:02:34,080 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:02:34,290 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:35,698 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:36,124 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:36,650 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:37,536 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:02:37,751 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:02:38,055 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:02:38,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:02:38,101 INFO L93 Difference]: Finished difference Result 1301 states and 2205 transitions. [2020-10-12 19:02:38,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 19:02:38,101 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 251 [2020-10-12 19:02:38,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:02:38,111 INFO L225 Difference]: With dead ends: 1301 [2020-10-12 19:02:38,111 INFO L226 Difference]: Without dead ends: 1096 [2020-10-12 19:02:38,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-12 19:02:38,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2020-10-12 19:02:38,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 961. [2020-10-12 19:02:38,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 961 states. [2020-10-12 19:02:38,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1640 transitions. [2020-10-12 19:02:38,244 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1640 transitions. Word has length 251 [2020-10-12 19:02:38,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:02:38,245 INFO L479 AbstractCegarLoop]: Abstraction has 961 states and 1640 transitions. [2020-10-12 19:02:38,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:02:38,246 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1640 transitions. [2020-10-12 19:02:38,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-12 19:02:38,251 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:02:38,251 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:02:38,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 19:02:38,252 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:02:38,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:02:38,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1819277368, now seen corresponding path program 1 times [2020-10-12 19:02:38,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:02:38,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [646182581] [2020-10-12 19:02:38,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:02:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:38,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:38,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:39,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:39,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:40,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:40,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:40,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:43,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:43,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 279 [2020-10-12 19:02:43,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 19:02:43,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-12 19:02:43,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:43,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:43,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-12 19:02:43,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 19:02:43,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:44,329 WARN L193 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-12 19:02:44,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:02:44,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:44,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:44,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:44,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:02:44,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:44,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 19:02:44,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:44,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:44,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:44,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:44,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:02:44,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:02:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:44,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:44,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:44,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-12 19:02:44,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:44,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-10-12 19:02:44,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:44,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:44,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:44,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-12 19:02:44,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:44,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-12 19:02:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:44,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:44,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:44,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:02:44,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:44,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:02:44,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:44,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:44,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:44,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:02:44,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:44,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-12 19:02:44,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:44,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:44,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:44,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:44,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:44,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:02:44,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:44,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:44,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:02:44,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:02:44,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:44,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-12 19:02:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:44,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:44,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:44,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:44,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:44,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:02:44,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:44,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:44,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:02:44,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:44,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:44,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-12 19:02:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:44,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:44,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:44,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:44,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:44,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:02:44,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:44,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:44,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:02:44,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:44,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:45,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-12 19:02:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:45,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:45,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:45,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:02:45,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:45,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:02:45,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:45,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:45,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 19:02:45,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:45,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:45,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-12 19:02:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:45,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:45,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:45,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:45,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:45,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 19:02:45,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:45,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:45,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:02:45,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:45,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:45,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-10-12 19:02:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:45,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:45,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:45,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:02:45,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:45,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:02:45,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:45,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:45,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 19:02:45,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:45,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:45,152 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 19:02:45,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [646182581] [2020-10-12 19:02:45,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:02:45,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:02:45,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230227297] [2020-10-12 19:02:45,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:02:45,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:02:45,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:02:45,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:02:45,154 INFO L87 Difference]: Start difference. First operand 961 states and 1640 transitions. Second operand 11 states. [2020-10-12 19:02:45,799 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:02:51,416 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:51,896 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:02:52,359 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:02:52,568 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:53,342 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:02:53,599 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:54,468 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:02:54,728 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:55,795 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:02:56,019 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:57,623 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:02:58,172 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:02:58,507 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:02:58,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:02:58,566 INFO L93 Difference]: Finished difference Result 2011 states and 3378 transitions. [2020-10-12 19:02:58,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 19:02:58,568 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 255 [2020-10-12 19:02:58,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:02:58,577 INFO L225 Difference]: With dead ends: 2011 [2020-10-12 19:02:58,577 INFO L226 Difference]: Without dead ends: 1613 [2020-10-12 19:02:58,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-12 19:02:58,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2020-10-12 19:02:58,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1339. [2020-10-12 19:02:58,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1339 states. [2020-10-12 19:02:58,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 2246 transitions. [2020-10-12 19:02:58,728 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 2246 transitions. Word has length 255 [2020-10-12 19:02:58,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:02:58,729 INFO L479 AbstractCegarLoop]: Abstraction has 1339 states and 2246 transitions. [2020-10-12 19:02:58,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:02:58,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 2246 transitions. [2020-10-12 19:02:58,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-10-12 19:02:58,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:02:58,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:02:58,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 19:02:58,735 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:02:58,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:02:58,735 INFO L82 PathProgramCache]: Analyzing trace with hash -988520208, now seen corresponding path program 1 times [2020-10-12 19:02:58,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:02:58,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208251559] [2020-10-12 19:02:58,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:02:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:58,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:58,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:59,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:59,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:59,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:00,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:03,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:03,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 283 [2020-10-12 19:03:03,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 19:03:03,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-12 19:03:03,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:03,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:03:03,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-10-12 19:03:03,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 19:03:03,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:04,547 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-12 19:03:04,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:03:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:04,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:04,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:04,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:03:04,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:04,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 19:03:04,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:04,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:03:04,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:04,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:03:04,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:04,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:03:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:04,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:04,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:04,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-12 19:03:04,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:04,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-12 19:03:04,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-12 19:03:04,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:04,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-12 19:03:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:04,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:04,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:04,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:03:04,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:04,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:03:04,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:04,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:04,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:04,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:03:04,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:04,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-12 19:03:04,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:04,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:04,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:04,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:03:04,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:04,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 19:03:04,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:04,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:04,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:04,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:03:04,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:05,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-12 19:03:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:05,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:05,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:05,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:03:05,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:05,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 19:03:05,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:05,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:03:05,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:03:05,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:03:05,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:05,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-12 19:03:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:05,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:05,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:05,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:03:05,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:05,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:03:05,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:05,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:03:05,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:03:05,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:03:05,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:05,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-12 19:03:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:05,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:05,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:05,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:03:05,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:05,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 19:03:05,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:05,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:03:05,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 19:03:05,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:03:05,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:05,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-10-12 19:03:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:05,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:05,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:05,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:03:05,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:05,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 19:03:05,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:05,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:03:05,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:03:05,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:03:05,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:05,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-10-12 19:03:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:05,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:05,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:05,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:03:05,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:05,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 19:03:05,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:05,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:03:05,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 19:03:05,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:03:05,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:05,282 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 19:03:05,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208251559] [2020-10-12 19:03:05,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:03:05,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:03:05,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481783917] [2020-10-12 19:03:05,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:03:05,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:03:05,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:03:05,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:03:05,285 INFO L87 Difference]: Start difference. First operand 1339 states and 2246 transitions. Second operand 11 states. [2020-10-12 19:03:05,961 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:03:12,098 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:03:12,775 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:13,206 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:03:13,763 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:03:13,986 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:14,673 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:03:14,916 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:15,756 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:03:15,962 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:17,191 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:18,060 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:03:18,274 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:03:18,577 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:03:18,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:03:18,669 INFO L93 Difference]: Finished difference Result 3383 states and 5592 transitions. [2020-10-12 19:03:18,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 19:03:18,670 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 259 [2020-10-12 19:03:18,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:03:18,683 INFO L225 Difference]: With dead ends: 3383 [2020-10-12 19:03:18,683 INFO L226 Difference]: Without dead ends: 2607 [2020-10-12 19:03:18,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-12 19:03:18,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2607 states. [2020-10-12 19:03:18,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2607 to 2073. [2020-10-12 19:03:18,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2073 states. [2020-10-12 19:03:18,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 3428 transitions. [2020-10-12 19:03:18,974 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 3428 transitions. Word has length 259 [2020-10-12 19:03:18,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:03:18,975 INFO L479 AbstractCegarLoop]: Abstraction has 2073 states and 3428 transitions. [2020-10-12 19:03:18,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:03:18,975 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 3428 transitions. [2020-10-12 19:03:18,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-10-12 19:03:18,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:03:18,983 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:03:18,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 19:03:18,984 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:03:18,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:03:18,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1320918776, now seen corresponding path program 1 times [2020-10-12 19:03:18,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:03:18,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1425649820] [2020-10-12 19:03:18,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:03:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:19,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:19,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:19,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:19,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:19,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:23,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:23,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:23,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:23,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:23,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:24,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:24,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:24,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-12 19:03:24,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 19:03:24,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5107 [2020-10-12 19:03:24,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:03:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-10-12 19:03:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-12 19:03:24,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:24,845 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-12 19:03:24,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:03:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:24,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:24,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:24,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:03:24,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:24,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 19:03:24,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:24,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:03:24,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:24,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:03:24,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:24,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:03:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:24,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:25,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:25,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-12 19:03:25,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:25,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-10-12 19:03:25,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:25,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:25,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:25,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-12 19:03:25,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:25,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-12 19:03:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:25,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:25,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:25,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:03:25,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:25,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:03:25,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:25,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:25,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:25,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:03:25,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:25,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-12 19:03:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:25,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:25,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:25,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:03:25,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:25,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:03:25,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:03:25,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:25,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-12 19:03:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:25,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:25,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:25,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:03:25,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:25,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:03:25,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:25,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:25,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:25,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:03:25,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:25,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-12 19:03:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:25,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:25,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:25,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:03:25,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:25,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:03:25,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:25,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:03:25,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:03:25,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:03:25,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:25,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-10-12 19:03:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:25,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:25,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:25,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:03:25,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:25,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 19:03:25,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:25,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:03:25,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 19:03:25,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:03:25,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:25,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-10-12 19:03:25,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:25,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:25,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:25,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:03:25,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:25,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 19:03:25,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:25,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:03:25,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:03:25,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:03:25,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:25,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2020-10-12 19:03:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:25,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:25,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:25,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:03:25,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:25,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 19:03:25,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:25,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:03:25,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 19:03:25,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:03:25,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:25,741 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 19:03:25,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1425649820] [2020-10-12 19:03:25,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:03:25,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:03:25,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563572507] [2020-10-12 19:03:25,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:03:25,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:03:25,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:03:25,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:03:25,743 INFO L87 Difference]: Start difference. First operand 2073 states and 3428 transitions. Second operand 11 states. [2020-10-12 19:03:26,400 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:03:32,151 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:03:32,861 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:03:33,525 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:33,951 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:03:34,415 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:03:34,622 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:35,532 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:03:35,746 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:37,241 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:37,711 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:38,669 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:03:38,885 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:03:39,212 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:03:39,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:03:39,278 INFO L93 Difference]: Finished difference Result 6077 states and 9958 transitions. [2020-10-12 19:03:39,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 19:03:39,283 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 263 [2020-10-12 19:03:39,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:03:39,307 INFO L225 Difference]: With dead ends: 6077 [2020-10-12 19:03:39,307 INFO L226 Difference]: Without dead ends: 4567 [2020-10-12 19:03:39,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-12 19:03:39,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4567 states. [2020-10-12 19:03:39,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4567 to 3501. [2020-10-12 19:03:39,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3501 states. [2020-10-12 19:03:39,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3501 states to 3501 states and 5712 transitions. [2020-10-12 19:03:39,726 INFO L78 Accepts]: Start accepts. Automaton has 3501 states and 5712 transitions. Word has length 263 [2020-10-12 19:03:39,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:03:39,727 INFO L479 AbstractCegarLoop]: Abstraction has 3501 states and 5712 transitions. [2020-10-12 19:03:39,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:03:39,727 INFO L276 IsEmpty]: Start isEmpty. Operand 3501 states and 5712 transitions. [2020-10-12 19:03:39,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-10-12 19:03:39,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:03:39,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:03:39,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 19:03:39,733 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:03:39,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:03:39,734 INFO L82 PathProgramCache]: Analyzing trace with hash 667307056, now seen corresponding path program 1 times [2020-10-12 19:03:39,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:03:39,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1168650337] [2020-10-12 19:03:39,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:03:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:39,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:40,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:40,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:40,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:40,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:40,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:41,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:44,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:44,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 291 [2020-10-12 19:03:44,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 19:03:44,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-12 19:03:44,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:44,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:03:44,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-12 19:03:44,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 19:03:44,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:45,599 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-12 19:03:45,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:03:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:45,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:45,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:45,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:03:45,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:45,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 19:03:45,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:45,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:03:45,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:45,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:03:45,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:45,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:03:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:45,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:45,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:45,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-12 19:03:45,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:45,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-12 19:03:45,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:45,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:45,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:45,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-12 19:03:45,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:45,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-12 19:03:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:45,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:45,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:45,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:03:45,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:45,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 19:03:45,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:45,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:45,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:45,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:03:45,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:45,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-12 19:03:45,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:45,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:45,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:45,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:03:45,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:45,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:03:45,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:45,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:45,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:45,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:03:45,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:45,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-12 19:03:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:45,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:45,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:45,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:03:45,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:45,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:03:45,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:45,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:45,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:45,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:03:45,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:46,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-12 19:03:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:46,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:46,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:46,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:03:46,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:46,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:03:46,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:46,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:46,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:46,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:03:46,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:46,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-12 19:03:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:46,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:46,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:46,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:03:46,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:46,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:03:46,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:46,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:46,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:46,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:03:46,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:46,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-10-12 19:03:46,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:46,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:46,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:46,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:03:46,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:46,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:03:46,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:46,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:03:46,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:03:46,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:03:46,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:46,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2020-10-12 19:03:46,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:46,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:46,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:46,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:03:46,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:46,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 19:03:46,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:46,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:03:46,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 19:03:46,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:03:46,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:46,250 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 19:03:46,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1168650337] [2020-10-12 19:03:46,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:03:46,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:03:46,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452956566] [2020-10-12 19:03:46,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:03:46,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:03:46,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:03:46,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:03:46,252 INFO L87 Difference]: Start difference. First operand 3501 states and 5712 transitions. Second operand 11 states. [2020-10-12 19:03:46,949 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:03:52,955 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:03:53,622 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:03:54,297 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:03:54,964 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:03:55,635 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:56,136 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:03:57,263 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:57,733 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:58,205 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:58,691 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:59,606 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:03:59,823 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:04:00,159 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:04:00,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:04:00,212 INFO L93 Difference]: Finished difference Result 11345 states and 18450 transitions. [2020-10-12 19:04:00,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 19:04:00,214 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 267 [2020-10-12 19:04:00,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:04:00,251 INFO L225 Difference]: With dead ends: 11345 [2020-10-12 19:04:00,251 INFO L226 Difference]: Without dead ends: 8407 [2020-10-12 19:04:00,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-12 19:04:00,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8407 states. [2020-10-12 19:04:00,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8407 to 6277. [2020-10-12 19:04:00,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6277 states. [2020-10-12 19:04:00,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6277 states to 6277 states and 10120 transitions. [2020-10-12 19:04:00,890 INFO L78 Accepts]: Start accepts. Automaton has 6277 states and 10120 transitions. Word has length 267 [2020-10-12 19:04:00,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:04:00,891 INFO L479 AbstractCegarLoop]: Abstraction has 6277 states and 10120 transitions. [2020-10-12 19:04:00,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:04:00,891 INFO L276 IsEmpty]: Start isEmpty. Operand 6277 states and 10120 transitions. [2020-10-12 19:04:00,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-10-12 19:04:00,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:04:00,901 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:04:00,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 19:04:00,901 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:04:00,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:04:00,901 INFO L82 PathProgramCache]: Analyzing trace with hash 788083416, now seen corresponding path program 1 times [2020-10-12 19:04:00,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:04:00,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [446481382] [2020-10-12 19:04:00,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:04:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:04:01,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:01,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:01,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:02,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:02,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:02,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:02,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:02,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:03,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:03,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:06,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:04:06,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 295 [2020-10-12 19:04:06,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 19:04:06,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-12 19:04:06,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:04:06,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 19:04:06,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-10-12 19:04:06,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 19:04:06,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:04:06,742 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-12 19:04:06,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:04:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:04:06,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:06,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:04:06,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:04:06,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:04:06,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 19:04:06,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:04:06,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:04:06,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:04:06,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:04:06,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:04:06,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:04:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:04:06,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:07,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:04:07,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-12 19:04:07,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:04:07,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 501 [2020-10-12 19:04:07,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:04:07,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 19:04:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:04:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 19:04:07,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:04:07,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-12 19:04:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:04:07,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:07,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:04:07,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:04:07,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:04:07,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:04:07,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:04:07,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:04:07,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:04:07,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:04:07,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:04:07,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-12 19:04:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:04:07,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:07,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:04:07,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:04:07,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:04:07,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 19:04:07,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:04:07,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:04:07,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:04:07,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 19:04:07,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:04:07,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-12 19:04:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:04:07,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:07,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:04:07,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:04:07,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:04:07,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 19:04:07,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:04:07,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:04:07,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:04:07,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 19:04:07,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:04:07,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-12 19:04:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:04:07,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:07,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:04:07,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:04:07,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:04:07,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 19:04:07,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:04:07,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:04:07,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:04:07,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 19:04:07,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:04:07,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-12 19:04:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:04:07,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:07,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:04:07,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:04:07,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:04:07,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 19:04:07,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:04:07,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:04:07,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:04:07,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 19:04:07,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:04:07,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-10-12 19:04:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:04:07,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:07,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:04:07,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:04:07,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:04:07,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 19:04:07,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:04:07,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:04:07,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:04:07,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 19:04:07,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:04:07,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2020-10-12 19:04:07,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:04:07,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:07,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:04:07,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:04:07,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:04:07,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 19:04:07,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:04:07,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:04:07,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 19:04:07,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 19:04:07,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:04:08,044 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 19:04:08,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [446481382] [2020-10-12 19:04:08,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:04:08,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-10-12 19:04:08,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657522913] [2020-10-12 19:04:08,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 19:04:08,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:04:08,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 19:04:08,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2020-10-12 19:04:08,047 INFO L87 Difference]: Start difference. First operand 6277 states and 10120 transitions. Second operand 20 states. [2020-10-12 19:04:08,810 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-12 19:04:16,395 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:04:17,037 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-12 19:04:17,732 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2020-10-12 19:04:18,419 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-12 19:04:18,850 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:04:19,286 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:04:19,675 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:04:19,934 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:04:20,580 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:04:20,930 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:04:21,292 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:04:21,543 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:04:21,773 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:04:22,628 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:04:23,040 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:04:23,313 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:04:23,752 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:04:24,032 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:04:24,286 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:04:24,542 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:04:25,670 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 19:04:26,147 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:04:26,445 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:04:26,766 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:04:27,214 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:04:27,507 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:04:27,756 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:04:28,013 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:04:28,276 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 19:04:29,633 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:04:30,162 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:04:30,430 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:04:30,709 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:04:30,990 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 19:04:31,968 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-12 19:04:32,641 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 375 [2020-10-12 19:04:33,304 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-12 19:04:33,985 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 377 [2020-10-12 19:04:34,719 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 379 [2020-10-12 19:04:37,144 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 379 DAG size of output: 377 [2020-10-12 19:04:38,636 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:04:38,899 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 19:04:39,154 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:04:39,413 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 19:04:39,684 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:04:39,935 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:04:40,209 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:04:40,466 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:04:40,725 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 19:04:41,008 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:04:43,031 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:04:43,342 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 19:04:43,836 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 19:04:44,092 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:04:44,356 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 19:04:44,631 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:04:45,104 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:04:45,360 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:04:45,630 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 19:04:45,906 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:04:46,704 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-10-12 19:04:48,619 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:04:48,932 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 19:04:49,212 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:04:49,718 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:04:49,986 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 19:04:50,268 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:04:50,877 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:04:51,135 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 19:04:51,406 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:04:52,005 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-10-12 19:04:54,225 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:04:54,542 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:04:54,831 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 19:04:55,158 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 19:04:55,527 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 19:04:55,807 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:04:56,316 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 19:04:56,590 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:04:57,167 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-10-12 19:04:59,278 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:04:59,588 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 19:04:59,994 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 19:05:00,298 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:05:00,635 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 19:05:00,988 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:05:01,532 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:05:02,147 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-10-12 19:05:04,931 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-10-12 19:05:05,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:05:05,688 INFO L93 Difference]: Finished difference Result 57680 states and 94278 transitions. [2020-10-12 19:05:05,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2020-10-12 19:05:05,688 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 271 [2020-10-12 19:05:05,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:05:05,897 INFO L225 Difference]: With dead ends: 57680 [2020-10-12 19:05:05,898 INFO L226 Difference]: Without dead ends: 51966 [2020-10-12 19:05:05,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4601 ImplicationChecksByTransitivity, 29.1s TimeCoverageRelationStatistics Valid=2310, Invalid=10800, Unknown=0, NotChecked=0, Total=13110 [2020-10-12 19:05:06,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51966 states. [2020-10-12 19:05:09,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51966 to 38072. [2020-10-12 19:05:09,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38072 states. [2020-10-12 19:05:09,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38072 states to 38072 states and 61610 transitions. [2020-10-12 19:05:09,170 INFO L78 Accepts]: Start accepts. Automaton has 38072 states and 61610 transitions. Word has length 271 [2020-10-12 19:05:09,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:05:09,171 INFO L479 AbstractCegarLoop]: Abstraction has 38072 states and 61610 transitions. [2020-10-12 19:05:09,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 19:05:09,171 INFO L276 IsEmpty]: Start isEmpty. Operand 38072 states and 61610 transitions. [2020-10-12 19:05:09,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-10-12 19:05:09,188 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:05:09,188 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:05:09,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 19:05:09,189 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:05:09,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:05:09,189 INFO L82 PathProgramCache]: Analyzing trace with hash 222322594, now seen corresponding path program 1 times [2020-10-12 19:05:09,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:05:09,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [254088178] [2020-10-12 19:05:09,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:05:09,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:05:09,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:05:09,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:05:09,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:05:10,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:05:10,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:05:10,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:05:10,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:05:10,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:05:10,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:05:14,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:05:14,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 296 [2020-10-12 19:05:14,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 19:05:14,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-12 19:05:14,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:05:14,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:05:14,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-10-12 19:05:14,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 19:05:14,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:05:15,043 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-12 19:05:15,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:05:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:05:15,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:05:15,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:05:15,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:05:15,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:05:15,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 19:05:15,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:05:15,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:05:15,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:05:15,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:05:15,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:05:15,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:05:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:05:15,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:05:15,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:05:15,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-12 19:05:15,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:05:15,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 409 [2020-10-12 19:05:15,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:05:15,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:05:15,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:05:15,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-12 19:05:15,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:05:15,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-12 19:05:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:05:15,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:05:15,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:05:15,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:05:15,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:05:15,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:05:15,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:05:15,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:05:15,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:05:15,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:05:15,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:05:15,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-12 19:05:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:05:15,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:05:15,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:05:15,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:05:15,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:05:15,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 19:05:15,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:05:15,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:05:15,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:05:15,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 19:05:15,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:05:15,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-12 19:05:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:05:15,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:05:15,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:05:15,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:05:15,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:05:15,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:05:15,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:05:15,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:05:15,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:05:15,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:05:15,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:05:15,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-12 19:05:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:05:15,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:05:15,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:05:15,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:05:15,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:05:15,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:05:15,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:05:15,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:05:15,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:05:15,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:05:15,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:05:15,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-12 19:05:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:05:15,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:05:15,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:05:15,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:05:15,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:05:15,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:05:15,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:05:15,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:05:15,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:05:15,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:05:15,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:05:15,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-10-12 19:05:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:05:15,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:05:15,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:05:15,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:05:15,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:05:15,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:05:15,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:05:15,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:05:15,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:05:15,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:05:15,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:05:15,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2020-10-12 19:05:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:05:15,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:05:15,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:05:15,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:05:15,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:05:15,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:05:15,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:05:15,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:05:15,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 19:05:15,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 19:05:15,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:05:15,984 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 19:05:15,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [254088178] [2020-10-12 19:05:15,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:05:15,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:05:15,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825008075] [2020-10-12 19:05:15,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:05:15,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:05:15,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:05:15,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:05:15,986 INFO L87 Difference]: Start difference. First operand 38072 states and 61610 transitions. Second operand 12 states. [2020-10-12 19:05:16,728 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2020-10-12 19:05:24,180 WARN L193 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:05:24,613 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 19:05:25,100 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:05:25,333 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:05:25,748 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 19:05:26,017 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:05:26,263 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:05:27,576 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 19:05:27,847 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:05:28,082 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:05:29,162 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 19:05:29,439 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:05:29,672 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 181