/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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.8.1.ufo.BOUNDED-16.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:28:28,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:28:28,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:28:28,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:28:28,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:28:28,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:28:28,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:28:28,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:28:28,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:28:28,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:28:28,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:28:28,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:28:28,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:28:28,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:28:28,952 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:28:28,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:28:28,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:28:28,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:28:28,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:28:28,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:28:28,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:28:28,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:28:28,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:28:28,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:28:28,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:28:28,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:28:28,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:28:28,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:28:28,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:28:28,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:28:28,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:28:28,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:28:28,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:28:28,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:28:28,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:28:28,971 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:28:28,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:28:28,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:28:28,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:28:28,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:28:28,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:28:28,974 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 [2020-10-13 13:28:28,998 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:28:28,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:28:29,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:28:29,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:28:29,000 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:28:29,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:28:29,001 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:28:29,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:28:29,001 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:28:29,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:28:29,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:28:29,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:28:29,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:28:29,002 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:28:29,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:28:29,003 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:28:29,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:28:29,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:28:29,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:28:29,003 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:28:29,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:28:29,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:28:29,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:28:29,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:28:29,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:28:29,005 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:28:29,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:28:29,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:28:29,005 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:28:29,005 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 13:28:29,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:28:29,334 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:28:29,342 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:28:29,344 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:28:29,345 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:28:29,346 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.8.1.ufo.BOUNDED-16.pals.c [2020-10-13 13:28:29,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42b404dff/791a07bb6fcd4c1fa8de8a2247029ef7/FLAG1133db577 [2020-10-13 13:28:29,899 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:28:29,900 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.8.1.ufo.BOUNDED-16.pals.c [2020-10-13 13:28:29,911 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42b404dff/791a07bb6fcd4c1fa8de8a2247029ef7/FLAG1133db577 [2020-10-13 13:28:30,241 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42b404dff/791a07bb6fcd4c1fa8de8a2247029ef7 [2020-10-13 13:28:30,249 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:28:30,250 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:28:30,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:28:30,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:28:30,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:28:30,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:28:30" (1/1) ... [2020-10-13 13:28:30,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@157d1d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:28:30, skipping insertion in model container [2020-10-13 13:28:30,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:28:30" (1/1) ... [2020-10-13 13:28:30,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:28:30,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:28:30,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:28:30,751 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:28:30,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:28:30,848 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:28:30,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:28:30 WrapperNode [2020-10-13 13:28:30,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:28:30,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:28:30,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:28:30,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:28:30,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:28:30" (1/1) ... [2020-10-13 13:28:30,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:28:30" (1/1) ... [2020-10-13 13:28:30,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:28:30" (1/1) ... [2020-10-13 13:28:30,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:28:30" (1/1) ... [2020-10-13 13:28:30,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:28:30" (1/1) ... [2020-10-13 13:28:30,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:28:30" (1/1) ... [2020-10-13 13:28:30,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:28:30" (1/1) ... [2020-10-13 13:28:30,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:28:30,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:28:30,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:28:30,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:28:30,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:28:30" (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 [2020-10-13 13:28:30,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:28:30,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:28:30,995 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 13:28:30,996 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-13 13:28:30,996 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-13 13:28:30,996 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-13 13:28:30,996 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-13 13:28:30,996 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-13 13:28:30,996 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-13 13:28:30,996 INFO L138 BoogieDeclarations]: Found implementation of procedure node7 [2020-10-13 13:28:30,997 INFO L138 BoogieDeclarations]: Found implementation of procedure node8 [2020-10-13 13:28:30,997 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 13:28:30,997 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-13 13:28:30,997 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:28:30,997 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-13 13:28:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:28:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 13:28:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 13:28:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 13:28:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 13:28:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 13:28:30,999 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 13:28:30,999 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 13:28:30,999 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 13:28:30,999 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 13:28:30,999 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 13:28:30,999 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 13:28:31,000 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-13 13:28:31,000 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-13 13:28:31,000 INFO L130 BoogieDeclarations]: Found specification of procedure node7 [2020-10-13 13:28:31,000 INFO L130 BoogieDeclarations]: Found specification of procedure node8 [2020-10-13 13:28:31,000 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 13:28:31,000 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 13:28:31,000 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:28:31,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:28:31,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:28:31,805 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:28:31,806 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 13:28:31,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:28:31 BoogieIcfgContainer [2020-10-13 13:28:31,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:28:31,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:28:31,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:28:31,817 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:28:31,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:28:30" (1/3) ... [2020-10-13 13:28:31,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b48ac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:28:31, skipping insertion in model container [2020-10-13 13:28:31,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:28:30" (2/3) ... [2020-10-13 13:28:31,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b48ac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:28:31, skipping insertion in model container [2020-10-13 13:28:31,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:28:31" (3/3) ... [2020-10-13 13:28:31,821 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.BOUNDED-16.pals.c [2020-10-13 13:28:31,832 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:28:31,840 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:28:31,855 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:28:31,883 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:28:31,883 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:28:31,883 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:28:31,883 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:28:31,884 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:28:31,884 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:28:31,884 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:28:31,884 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:28:31,909 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states. [2020-10-13 13:28:31,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-13 13:28:31,921 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:31,922 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] [2020-10-13 13:28:31,922 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:31,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:31,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1837959040, now seen corresponding path program 1 times [2020-10-13 13:28:31,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:31,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2054567987] [2020-10-13 13:28:31,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:32,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:32,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:32,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:32,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 13:28:32,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:32,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 449 [2020-10-13 13:28:32,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:32,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:32,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-13 13:28:32,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:32,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:28:33,085 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-13 13:28:33,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:33,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:33,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:33,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:33,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:33,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 13:28:33,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:33,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:33,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:33,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:33,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:33,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:33,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:33,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:33,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:33,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:33,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:28:33,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:33,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:33,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:33,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:33,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:33,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 13:28:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:33,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:33,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:33,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:33,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:33,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:33,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:33,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:33,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:28:33,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:33,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:33,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 13:28:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:33,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:33,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:33,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:33,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:33,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:28:33,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:33,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:33,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:33,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:33,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 13:28:33,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 13:28:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:33,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:33,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:33,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:33,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:33,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:28:33,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:33,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:33,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:33,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:33,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:33,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 13:28:33,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:33,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:33,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:33,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:33,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:33,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:28:33,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:33,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:33,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:33,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:33,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:33,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:28:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:33,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:33,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:33,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:33,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:33,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:28:33,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:33,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:33,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:33,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:33,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:33,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 13:28:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:33,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:33,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:33,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:33,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:33,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:28:33,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:33,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:33,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:33,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:33,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:33,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 13:28:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:33,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:33,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:33,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:33,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:33,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:28:33,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:33,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:33,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:33,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:33,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:33,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:28:33,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:33,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:33,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:33,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:33,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:33,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:28:33,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:33,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:33,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:33,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:33,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:33,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-13 13:28:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:33,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:33,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:33,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:33,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:33,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:28:33,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:33,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:33,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:33,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:33,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:33,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 13:28:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:33,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:33,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:33,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:33,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:33,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:33,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:33,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:33,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:28:33,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:33,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:33,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:28:33,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2054567987] [2020-10-13 13:28:33,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:33,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:28:33,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156053053] [2020-10-13 13:28:33,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:28:33,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:33,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:28:33,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:28:33,627 INFO L87 Difference]: Start difference. First operand 193 states. Second operand 11 states. [2020-10-13 13:28:34,053 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 13:28:34,574 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:28:35,782 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:28:35,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:35,980 INFO L93 Difference]: Finished difference Result 310 states and 467 transitions. [2020-10-13 13:28:35,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 13:28:35,982 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 88 [2020-10-13 13:28:35,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:35,995 INFO L225 Difference]: With dead ends: 310 [2020-10-13 13:28:35,996 INFO L226 Difference]: Without dead ends: 188 [2020-10-13 13:28:36,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2020-10-13 13:28:36,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-13 13:28:36,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2020-10-13 13:28:36,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-13 13:28:36,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 294 transitions. [2020-10-13 13:28:36,064 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 294 transitions. Word has length 88 [2020-10-13 13:28:36,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:36,065 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 294 transitions. [2020-10-13 13:28:36,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:28:36,065 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 294 transitions. [2020-10-13 13:28:36,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-13 13:28:36,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:36,070 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] [2020-10-13 13:28:36,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:28:36,071 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:36,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:36,071 INFO L82 PathProgramCache]: Analyzing trace with hash -73083518, now seen corresponding path program 1 times [2020-10-13 13:28:36,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:36,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171467027] [2020-10-13 13:28:36,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:36,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 13:28:37,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 925 [2020-10-13 13:28:37,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:28:37,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 13:28:37,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:28:37,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,271 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-13 13:28:37,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:37,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:28:37,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:37,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:37,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:37,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:37,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:37,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:28:37,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:37,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:37,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:28:37,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 13:28:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:37,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:37,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:37,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:28:37,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:28:37,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 13:28:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:37,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:28:37,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:37,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:37,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:37,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 13:28:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:37,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:28:37,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:37,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:37,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:37,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 13:28:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:37,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:37,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:37,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:37,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:37,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:28:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:37,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:37,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:37,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:37,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:37,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 13:28:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:37,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:28:37,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:37,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:37,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:37,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:37,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 13:28:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:37,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:37,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:37,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:37,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:37,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 13:28:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:37,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:37,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:37,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:37,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:37,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:37,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-13 13:28:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:37,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:37,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:37,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:37,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:37,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:37,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 13:28:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:37,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 13:28:37,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:37,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:28:37,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:37,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:28:37,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [171467027] [2020-10-13 13:28:37,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:37,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-13 13:28:37,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953842982] [2020-10-13 13:28:37,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-13 13:28:37,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:37,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-13 13:28:37,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-10-13 13:28:37,732 INFO L87 Difference]: Start difference. First operand 188 states and 294 transitions. Second operand 17 states. [2020-10-13 13:28:37,978 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 13:28:38,185 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 13:28:38,510 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 13:28:38,757 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 13:28:40,565 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:28:40,857 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:28:41,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:41,797 INFO L93 Difference]: Finished difference Result 317 states and 479 transitions. [2020-10-13 13:28:41,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:28:41,798 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 88 [2020-10-13 13:28:41,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:41,803 INFO L225 Difference]: With dead ends: 317 [2020-10-13 13:28:41,803 INFO L226 Difference]: Without dead ends: 202 [2020-10-13 13:28:41,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=203, Invalid=609, Unknown=0, NotChecked=0, Total=812 [2020-10-13 13:28:41,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-13 13:28:41,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 188. [2020-10-13 13:28:41,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-13 13:28:41,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 233 transitions. [2020-10-13 13:28:41,835 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 233 transitions. Word has length 88 [2020-10-13 13:28:41,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:41,835 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 233 transitions. [2020-10-13 13:28:41,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-13 13:28:41,835 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 233 transitions. [2020-10-13 13:28:41,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-13 13:28:41,841 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:41,842 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:28:41,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:28:41,842 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:41,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:41,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1715184750, now seen corresponding path program 1 times [2020-10-13 13:28:41,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:41,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [705367035] [2020-10-13 13:28:41,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:41,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:42,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:42,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:42,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:46,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:46,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 13:28:46,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:28:46,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 13:28:46,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:46,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:46,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 13:28:46,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 13:28:46,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:47,147 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-13 13:28:47,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:47,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:47,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:47,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:47,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:47,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:28:47,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:47,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:47,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:47,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:47,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:47,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:47,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:47,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:47,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 13:28:47,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:47,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 13:28:47,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:47,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:47,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:47,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:28:47,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:47,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:28:47,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:47,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:47,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:47,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:47,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:47,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:47,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:47,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:47,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:47,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:28:47,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:47,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:28:47,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:47,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:47,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:47,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:47,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:47,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:28:47,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:47,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:47,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:47,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:47,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:47,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:28:47,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:47,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:47,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:47,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:47,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:47,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:28:47,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:47,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:47,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:47,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:47,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:47,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:28:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:47,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:47,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:47,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:47,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:47,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:28:47,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:47,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:47,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:47,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:28:47,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:47,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 13:28:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:47,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:47,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:47,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:47,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:47,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:47,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:47,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:47,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:47,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:47,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:47,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 13:28:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:47,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:47,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:47,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:47,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:47,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:47,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:47,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:47,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:47,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:47,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:47,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:28:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:47,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:47,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:47,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:47,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:47,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:47,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:47,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:47,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:47,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:47,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:47,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 13:28:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:47,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:47,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:47,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:47,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:47,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:47,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:47,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:47,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:47,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:47,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:47,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-13 13:28:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:47,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:47,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:47,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:47,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:47,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:47,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:47,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:47,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:47,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:47,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:47,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-13 13:28:47,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:47,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:47,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:47,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:47,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:47,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:47,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:47,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:47,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:28:47,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:47,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:47,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:28:47,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [705367035] [2020-10-13 13:28:47,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:47,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-13 13:28:47,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694430250] [2020-10-13 13:28:47,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:28:47,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:47,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:28:47,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:28:47,766 INFO L87 Difference]: Start difference. First operand 188 states and 233 transitions. Second operand 14 states. [2020-10-13 13:28:47,998 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-13 13:28:50,577 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:28:51,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:51,733 INFO L93 Difference]: Finished difference Result 400 states and 533 transitions. [2020-10-13 13:28:51,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 13:28:51,734 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 148 [2020-10-13 13:28:51,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:51,740 INFO L225 Difference]: With dead ends: 400 [2020-10-13 13:28:51,740 INFO L226 Difference]: Without dead ends: 291 [2020-10-13 13:28:51,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=258, Invalid=734, Unknown=0, NotChecked=0, Total=992 [2020-10-13 13:28:51,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-10-13 13:28:51,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 289. [2020-10-13 13:28:51,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-10-13 13:28:51,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 376 transitions. [2020-10-13 13:28:51,796 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 376 transitions. Word has length 148 [2020-10-13 13:28:51,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:51,797 INFO L479 AbstractCegarLoop]: Abstraction has 289 states and 376 transitions. [2020-10-13 13:28:51,797 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 13:28:51,797 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 376 transitions. [2020-10-13 13:28:51,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-13 13:28:51,801 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:51,801 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:28:51,801 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:28:51,802 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:51,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:51,802 INFO L82 PathProgramCache]: Analyzing trace with hash -2039147940, now seen corresponding path program 1 times [2020-10-13 13:28:51,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:51,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [592645600] [2020-10-13 13:28:51,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:51,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:52,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:52,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:56,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:56,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 13:28:56,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:28:56,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-13 13:28:56,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:56,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:56,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-13 13:28:56,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-13 13:28:56,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:57,146 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-13 13:28:57,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:57,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:57,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:57,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:57,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:57,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:28:57,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:57,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:57,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:57,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:57,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:57,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:57,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:57,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:57,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 13:28:57,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:57,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 13:28:57,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:57,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:57,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:57,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:28:57,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:57,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:28:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:57,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:57,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:57,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:57,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:57,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:57,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:57,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:57,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:57,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:28:57,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:57,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:28:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:57,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:57,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:57,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:57,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:57,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:28:57,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:57,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:57,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:57,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:57,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:57,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:28:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:57,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:57,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:57,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:57,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:57,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:28:57,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:57,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:57,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:57,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:57,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:57,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:28:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:57,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:57,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:57,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:57,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:57,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:28:57,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:57,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:57,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:57,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:57,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:57,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 13:28:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:57,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:57,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:57,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:57,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:57,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:28:57,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:57,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:57,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:57,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:57,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:57,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 13:28:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:57,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:57,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:57,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:57,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:57,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:28:57,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:57,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:57,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:57,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:57,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:57,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:28:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:57,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:57,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:57,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:57,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:57,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:28:57,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:57,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:57,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:57,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:57,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:57,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 13:28:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:57,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:57,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:57,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:57,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:57,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:28:57,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:57,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:57,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:57,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:28:57,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:57,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-13 13:28:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:57,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:57,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:57,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:57,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:57,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:57,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:57,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:57,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:57,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:57,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:57,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-13 13:28:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:57,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:57,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:57,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:57,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:57,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:57,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:57,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:57,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:28:57,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:57,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:57,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:28:57,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [592645600] [2020-10-13 13:28:57,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:57,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-13 13:28:57,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430048529] [2020-10-13 13:28:57,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:28:57,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:57,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:28:57,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:28:57,617 INFO L87 Difference]: Start difference. First operand 289 states and 376 transitions. Second operand 14 states. [2020-10-13 13:28:57,850 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-13 13:29:01,142 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:29:01,319 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:29:01,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:29:01,590 INFO L93 Difference]: Finished difference Result 697 states and 954 transitions. [2020-10-13 13:29:01,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 13:29:01,591 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 148 [2020-10-13 13:29:01,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:29:01,595 INFO L225 Difference]: With dead ends: 697 [2020-10-13 13:29:01,595 INFO L226 Difference]: Without dead ends: 487 [2020-10-13 13:29:01,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=258, Invalid=734, Unknown=0, NotChecked=0, Total=992 [2020-10-13 13:29:01,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2020-10-13 13:29:01,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 485. [2020-10-13 13:29:01,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2020-10-13 13:29:01,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 652 transitions. [2020-10-13 13:29:01,646 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 652 transitions. Word has length 148 [2020-10-13 13:29:01,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:29:01,647 INFO L479 AbstractCegarLoop]: Abstraction has 485 states and 652 transitions. [2020-10-13 13:29:01,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 13:29:01,647 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 652 transitions. [2020-10-13 13:29:01,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-13 13:29:01,650 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:29:01,650 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:29:01,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:29:01,650 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:29:01,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:29:01,651 INFO L82 PathProgramCache]: Analyzing trace with hash -123536346, now seen corresponding path program 1 times [2020-10-13 13:29:01,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:29:01,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [776338115] [2020-10-13 13:29:01,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:29:01,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:01,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:01,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:05,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:05,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 13:29:05,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:29:05,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3668 [2020-10-13 13:29:05,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:05,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:29:05,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-13 13:29:05,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-13 13:29:05,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:05,574 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-13 13:29:05,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:29:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:05,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:05,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:05,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:29:05,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:05,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:29:05,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:05,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:05,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:05,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:05,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:05,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:29:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:05,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:05,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:05,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 13:29:05,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:05,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 13:29:05,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:05,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:05,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:05,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 13:29:05,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:05,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:29:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:05,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:05,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:05,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:29:05,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:05,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:29:05,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:05,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:05,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:05,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:29:05,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:05,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:29:05,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:05,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:05,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:05,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:05,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:05,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:29:05,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:05,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:05,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:05,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:05,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:05,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:29:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:05,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:05,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:05,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:05,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:05,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:29:05,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:05,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:05,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:05,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:05,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:05,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:29:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:05,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:05,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:05,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:05,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:05,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:29:05,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:05,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:05,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:05,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:05,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:29:05,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 13:29:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:05,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:05,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:05,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:05,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:05,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:29:05,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:05,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:05,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:05,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:05,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:05,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 13:29:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:05,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:05,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:05,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:05,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:05,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:29:05,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:05,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:05,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:05,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:05,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:05,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:29:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:05,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:05,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:05,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:05,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:05,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:29:05,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:05,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:05,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:05,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:05,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:05,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 13:29:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:05,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:05,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:05,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:05,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:05,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:29:05,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:05,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:05,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:05,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:05,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:29:06,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-13 13:29:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:06,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:06,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:06,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:06,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:06,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:29:06,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:06,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:29:06,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:29:06,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:29:06,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:06,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-13 13:29:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:06,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:06,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:06,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:29:06,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:06,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:29:06,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:06,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:06,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:29:06,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:06,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:06,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:29:06,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [776338115] [2020-10-13 13:29:06,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:29:06,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-13 13:29:06,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414975451] [2020-10-13 13:29:06,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:29:06,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:29:06,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:29:06,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:29:06,148 INFO L87 Difference]: Start difference. First operand 485 states and 652 transitions. Second operand 14 states. [2020-10-13 13:29:06,395 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-13 13:29:09,577 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:29:09,712 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:29:09,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:29:09,972 INFO L93 Difference]: Finished difference Result 1273 states and 1766 transitions. [2020-10-13 13:29:09,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 13:29:09,974 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 148 [2020-10-13 13:29:09,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:29:09,980 INFO L225 Difference]: With dead ends: 1273 [2020-10-13 13:29:09,980 INFO L226 Difference]: Without dead ends: 867 [2020-10-13 13:29:09,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=261, Invalid=731, Unknown=0, NotChecked=0, Total=992 [2020-10-13 13:29:09,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2020-10-13 13:29:10,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 865. [2020-10-13 13:29:10,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 865 states. [2020-10-13 13:29:10,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1184 transitions. [2020-10-13 13:29:10,054 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1184 transitions. Word has length 148 [2020-10-13 13:29:10,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:29:10,054 INFO L479 AbstractCegarLoop]: Abstraction has 865 states and 1184 transitions. [2020-10-13 13:29:10,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 13:29:10,055 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1184 transitions. [2020-10-13 13:29:10,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-13 13:29:10,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:29:10,057 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:29:10,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:29:10,058 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:29:10,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:29:10,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1717821028, now seen corresponding path program 1 times [2020-10-13 13:29:10,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:29:10,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1934669397] [2020-10-13 13:29:10,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:29:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:10,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:12,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:12,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 13:29:12,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:12,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2024 [2020-10-13 13:29:12,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:12,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:29:12,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:29:12,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-13 13:29:12,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:12,455 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-13 13:29:12,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:29:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:12,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:12,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:12,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:29:12,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:12,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 13:29:12,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:12,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:12,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:12,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:12,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:12,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:29:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:12,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:12,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:12,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 13:29:12,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:12,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-13 13:29:12,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:12,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:29:12,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:12,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-13 13:29:12,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:12,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:29:12,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:12,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:12,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:12,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:29:12,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:12,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:29:12,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:12,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:12,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:12,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:29:12,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:12,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:29:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:12,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:12,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:12,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:12,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:12,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 13:29:12,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:12,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:29:12,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:29:12,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:29:12,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:12,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:29:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:12,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:12,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:12,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:12,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:12,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:29:12,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:12,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:29:12,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:29:12,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:29:12,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:12,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:29:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:12,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:13,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:13,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:13,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:13,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:29:13,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:13,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:29:13,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:29:13,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:29:13,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:13,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 13:29:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:13,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:13,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:13,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:13,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:13,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:29:13,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:13,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:29:13,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:29:13,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:29:13,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:13,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 13:29:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:13,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:13,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:13,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:13,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:13,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:29:13,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:13,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:29:13,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:29:13,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:29:13,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:13,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:29:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:13,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:13,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:13,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:13,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:13,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:29:13,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:13,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:29:13,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:29:13,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:29:13,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:29:13,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 13:29:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:13,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:13,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:13,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:13,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:13,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:29:13,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:13,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:29:13,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:29:13,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:29:13,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:29:13,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-13 13:29:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:13,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:13,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:13,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:13,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:13,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:29:13,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:13,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:29:13,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:29:13,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:29:13,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:13,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-13 13:29:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:13,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:13,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:13,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:29:13,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:13,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:29:13,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:13,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:13,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:29:13,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:29:13,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:13,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:29:13,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1934669397] [2020-10-13 13:29:13,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:29:13,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-10-13 13:29:13,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420660236] [2020-10-13 13:29:13,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-13 13:29:13,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:29:13,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-13 13:29:13,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=663, Unknown=0, NotChecked=0, Total=756 [2020-10-13 13:29:13,693 INFO L87 Difference]: Start difference. First operand 865 states and 1184 transitions. Second operand 28 states. [2020-10-13 13:29:14,132 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-13 13:29:14,402 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-13 13:29:14,641 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 13:29:14,892 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-13 13:29:15,145 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 13:29:15,408 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 13:29:15,697 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 13:29:15,963 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 13:29:16,365 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:29:16,697 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:29:16,869 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:29:17,009 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-13 13:29:17,411 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:29:17,910 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:29:18,470 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 126 [2020-10-13 13:29:18,723 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:29:18,867 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:29:19,178 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:29:19,673 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 197 [2020-10-13 13:29:20,130 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2020-10-13 13:29:20,273 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:29:20,541 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-13 13:29:20,920 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 13:29:21,206 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 125 [2020-10-13 13:29:21,496 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:29:21,662 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:29:21,958 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 126 [2020-10-13 13:29:22,117 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:29:22,282 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:29:22,669 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:29:23,197 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 196 [2020-10-13 13:29:23,722 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 127 [2020-10-13 13:29:24,048 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2020-10-13 13:29:24,582 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 124 [2020-10-13 13:29:25,034 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:29:25,344 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 125 [2020-10-13 13:29:25,637 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 126 [2020-10-13 13:29:25,798 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:29:25,973 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:29:26,792 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-10-13 13:29:27,162 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:29:27,588 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 126 [2020-10-13 13:29:27,877 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 127 [2020-10-13 13:29:28,166 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2020-10-13 13:29:28,418 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:29:28,750 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:29:28,937 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:29:29,215 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:29:29,622 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 126 [2020-10-13 13:29:29,920 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 127 [2020-10-13 13:29:30,207 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2020-10-13 13:29:30,845 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:29:31,025 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:29:32,500 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 123 [2020-10-13 13:29:32,780 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 124 [2020-10-13 13:29:33,055 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 125 [2020-10-13 13:29:33,207 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:29:33,367 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:29:33,919 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:29:34,567 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 126 [2020-10-13 13:29:34,868 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 127 [2020-10-13 13:29:35,166 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2020-10-13 13:29:35,326 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:29:35,479 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:29:35,962 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:29:36,591 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 126 [2020-10-13 13:29:36,893 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 127 [2020-10-13 13:29:37,192 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2020-10-13 13:29:37,353 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:29:37,515 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:29:37,866 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:29:38,070 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:29:38,227 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:29:38,830 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-13 13:29:39,159 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 126 [2020-10-13 13:29:39,470 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 127 [2020-10-13 13:29:39,785 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2020-10-13 13:29:39,942 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:29:40,097 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:29:40,347 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:29:40,832 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:29:41,241 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 126 [2020-10-13 13:29:41,545 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 127 [2020-10-13 13:29:41,755 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:29:42,088 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:29:42,472 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 126 [2020-10-13 13:29:42,676 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:29:42,960 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:29:43,327 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:29:43,537 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:29:43,697 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:29:43,835 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:29:43,986 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:29:44,397 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:29:44,951 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:29:45,126 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:29:45,270 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:29:45,702 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 121 [2020-10-13 13:29:46,023 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 124 [2020-10-13 13:29:46,298 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 125 [2020-10-13 13:29:46,577 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 126 [2020-10-13 13:29:46,734 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:29:46,888 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:29:47,356 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 123 [2020-10-13 13:29:47,528 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:29:48,449 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 192 [2020-10-13 13:29:49,233 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-10-13 13:29:50,510 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 120 [2020-10-13 13:29:50,826 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 122 [2020-10-13 13:29:51,000 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:29:51,246 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:29:51,410 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:29:51,548 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:29:51,716 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:29:52,528 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 123 [2020-10-13 13:29:52,855 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 125 [2020-10-13 13:29:53,027 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:29:53,331 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:29:53,501 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:29:53,646 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:29:53,787 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:29:54,078 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:29:54,574 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 123 [2020-10-13 13:29:54,902 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 125 [2020-10-13 13:29:55,155 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:29:55,334 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:29:55,483 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:29:55,626 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:29:55,800 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:29:56,139 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:29:56,538 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 123 [2020-10-13 13:29:56,856 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 125 [2020-10-13 13:29:57,102 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:29:57,251 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:29:57,396 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:29:57,537 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:29:57,788 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:29:58,231 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 123 [2020-10-13 13:29:58,535 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 125 [2020-10-13 13:29:58,795 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:29:58,932 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:29:59,067 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:29:59,195 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:29:59,902 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 123 [2020-10-13 13:30:00,209 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 125 [2020-10-13 13:30:00,461 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:30:00,600 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:30:00,736 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:30:00,868 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:30:01,116 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:30:01,579 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 123 [2020-10-13 13:30:01,974 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 125 [2020-10-13 13:30:02,317 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 123 [2020-10-13 13:30:02,544 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:30:02,698 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:30:02,840 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:30:02,980 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:30:03,640 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 125 [2020-10-13 13:30:04,015 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 123 [2020-10-13 13:30:05,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:30:05,618 INFO L93 Difference]: Finished difference Result 14149 states and 20232 transitions. [2020-10-13 13:30:05,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 201 states. [2020-10-13 13:30:05,622 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 148 [2020-10-13 13:30:05,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:30:05,708 INFO L225 Difference]: With dead ends: 14149 [2020-10-13 13:30:05,708 INFO L226 Difference]: Without dead ends: 13363 [2020-10-13 13:30:05,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 29 SyntacticMatches, 5 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18932 ImplicationChecksByTransitivity, 37.4s TimeCoverageRelationStatistics Valid=6705, Invalid=41037, Unknown=0, NotChecked=0, Total=47742 [2020-10-13 13:30:05,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13363 states. [2020-10-13 13:30:07,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13363 to 12417. [2020-10-13 13:30:07,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12417 states. [2020-10-13 13:30:07,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12417 states to 12417 states and 17792 transitions. [2020-10-13 13:30:07,134 INFO L78 Accepts]: Start accepts. Automaton has 12417 states and 17792 transitions. Word has length 148 [2020-10-13 13:30:07,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:30:07,135 INFO L479 AbstractCegarLoop]: Abstraction has 12417 states and 17792 transitions. [2020-10-13 13:30:07,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-13 13:30:07,135 INFO L276 IsEmpty]: Start isEmpty. Operand 12417 states and 17792 transitions. [2020-10-13 13:30:07,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-13 13:30:07,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:30:07,139 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] [2020-10-13 13:30:07,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:30:07,139 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:30:07,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:30:07,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1381258508, now seen corresponding path program 1 times [2020-10-13 13:30:07,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:30:07,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [496094105] [2020-10-13 13:30:07,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:30:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:07,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:09,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:09,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 13:30:09,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:09,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2156 [2020-10-13 13:30:09,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:09,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:30:09,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:30:09,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-13 13:30:09,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:09,672 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-13 13:30:09,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:30:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:09,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:09,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:09,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:30:09,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:09,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:30:09,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:09,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:30:09,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:30:09,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:30:09,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:30:09,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:30:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:09,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:09,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:09,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 13:30:09,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:09,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-13 13:30:09,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:09,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:30:09,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:30:09,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-13 13:30:09,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:30:10,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:30:10,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:10,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:10,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:10,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:30:10,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:10,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:30:10,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:10,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:30:10,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:30:10,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:30:10,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:30:10,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:30:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:10,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:10,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:10,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:10,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:10,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 13:30:10,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:10,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:30:10,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:30:10,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:30:10,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:10,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:30:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:10,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:10,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:10,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:10,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:10,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:30:10,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:10,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:30:10,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:30:10,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:30:10,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:30:10,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:30:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:10,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:10,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:10,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:10,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:10,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:30:10,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:10,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:30:10,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:30:10,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:30:10,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:30:10,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 13:30:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:10,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:10,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:10,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:10,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:10,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:30:10,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:10,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:30:10,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:30:10,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:30:10,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:30:10,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 13:30:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:10,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:10,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:10,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:10,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:10,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:30:10,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:10,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:30:10,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:30:10,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:30:10,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:30:10,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:30:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:10,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:10,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:10,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:10,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:10,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:30:10,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:10,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:30:10,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:30:10,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:30:10,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:30:10,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 13:30:10,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:10,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:10,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:10,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:10,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:10,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:30:10,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:10,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:30:10,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:30:10,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:30:10,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:10,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-13 13:30:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:10,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:10,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:10,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:10,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:10,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:30:10,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:10,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:30:10,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:30:10,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:30:10,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:10,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-13 13:30:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:10,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:10,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:10,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:30:10,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:10,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:30:10,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:10,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:30:10,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:30:10,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:30:10,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:10,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:30:10,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [496094105] [2020-10-13 13:30:10,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:30:10,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-10-13 13:30:10,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913202218] [2020-10-13 13:30:10,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-13 13:30:10,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:30:10,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-13 13:30:10,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=649, Unknown=0, NotChecked=0, Total=756 [2020-10-13 13:30:10,876 INFO L87 Difference]: Start difference. First operand 12417 states and 17792 transitions. Second operand 28 states. [2020-10-13 13:30:11,177 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-13 13:30:11,420 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-13 13:30:11,655 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 13:30:11,890 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-13 13:30:12,137 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 13:30:12,397 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 13:30:12,661 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 13:30:13,012 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 13:30:13,408 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:30:13,832 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:30:14,054 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 13:30:14,231 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:30:14,367 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:30:14,921 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 13:30:15,101 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:30:15,296 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:30:15,422 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:30:15,769 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:30:15,992 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:30:16,123 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:30:16,269 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:30:17,046 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:30:17,334 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-13 13:30:17,610 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:30:17,814 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:30:17,951 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:30:18,111 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:30:18,648 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:30:19,230 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:30:19,508 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-13 13:30:19,852 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:30:20,005 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:30:20,160 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:30:20,303 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:30:20,464 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:30:20,746 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:30:20,909 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:30:21,195 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:30:21,332 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:30:22,081 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 13:30:22,485 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:30:22,747 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:30:22,891 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:30:23,036 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:30:23,176 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:30:23,309 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:30:23,540 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:30:23,702 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:30:23,857 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:30:24,337 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:30:24,610 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:30:24,762 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:30:24,911 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:30:25,052 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:30:25,190 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:30:25,426 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:30:25,596 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:30:25,756 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:30:25,913 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:30:27,487 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:30:27,729 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:30:27,888 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:30:28,035 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:30:28,177 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:30:28,723 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:30:28,897 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:30:29,433 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:30:29,599 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:30:29,758 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:30:29,904 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:30:30,668 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:30:30,844 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:30:31,011 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:30:31,277 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:30:31,446 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:30:31,608 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:30:31,980 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:30:32,188 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:30:32,333 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:30:32,828 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:30:33,080 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:30:33,543 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 13:30:33,716 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:30:33,891 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:30:34,038 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:30:34,308 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:30:34,471 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:30:34,598 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:30:34,790 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:30:35,041 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:30:35,219 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:30:35,355 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:30:35,663 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:30:35,831 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:30:36,095 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:30:36,260 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:30:36,397 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:30:36,581 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:30:36,826 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:30:36,962 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:30:37,265 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:30:37,493 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:30:37,665 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:30:37,797 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:30:37,965 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:30:38,164 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:30:38,755 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:30:38,939 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:30:39,111 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:30:39,322 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:30:39,489 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:30:39,632 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:30:39,774 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:30:40,233 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:30:40,781 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-13 13:30:41,130 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:30:41,296 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:30:41,489 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:30:41,660 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:30:41,889 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:30:42,086 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:30:42,246 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:30:42,393 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:30:42,900 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:30:43,051 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:30:43,885 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 13:30:45,860 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:30:46,033 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:30:46,190 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:30:46,507 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:30:46,644 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:30:46,919 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:30:47,555 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:30:47,730 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:30:47,888 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:30:48,310 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:30:48,447 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:30:48,727 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:30:49,388 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:30:49,550 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:30:49,877 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:30:50,057 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:30:50,342 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:30:50,479 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:30:50,962 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:30:51,129 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:30:51,487 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:30:51,746 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:30:52,225 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:30:52,405 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:30:52,779 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:30:53,110 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:30:53,711 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:30:53,889 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:30:54,352 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:30:54,615 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:30:55,096 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:30:55,423 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:30:55,612 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:30:55,895 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:30:56,445 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:30:56,649 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:30:59,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:30:59,310 INFO L93 Difference]: Finished difference Result 36821 states and 54760 transitions. [2020-10-13 13:30:59,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 217 states. [2020-10-13 13:30:59,311 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 150 [2020-10-13 13:30:59,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:30:59,445 INFO L225 Difference]: With dead ends: 36821 [2020-10-13 13:30:59,445 INFO L226 Difference]: Without dead ends: 24483 [2020-10-13 13:30:59,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 231 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22143 ImplicationChecksByTransitivity, 29.9s TimeCoverageRelationStatistics Valid=8085, Invalid=45971, Unknown=0, NotChecked=0, Total=54056 [2020-10-13 13:30:59,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24483 states. [2020-10-13 13:31:01,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24483 to 19725. [2020-10-13 13:31:01,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19725 states. [2020-10-13 13:31:01,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19725 states to 19725 states and 28424 transitions. [2020-10-13 13:31:01,784 INFO L78 Accepts]: Start accepts. Automaton has 19725 states and 28424 transitions. Word has length 150 [2020-10-13 13:31:01,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:31:01,785 INFO L479 AbstractCegarLoop]: Abstraction has 19725 states and 28424 transitions. [2020-10-13 13:31:01,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-13 13:31:01,785 INFO L276 IsEmpty]: Start isEmpty. Operand 19725 states and 28424 transitions. [2020-10-13 13:31:01,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-13 13:31:01,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:31:01,789 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] [2020-10-13 13:31:01,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:31:01,789 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:31:01,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:31:01,790 INFO L82 PathProgramCache]: Analyzing trace with hash -93556052, now seen corresponding path program 1 times [2020-10-13 13:31:01,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:31:01,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1700052151] [2020-10-13 13:31:01,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:31:01,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:01,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:02,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:02,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:03,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:03,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 13:31:03,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:31:03,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1281 [2020-10-13 13:31:03,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-13 13:31:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:31:03,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:03,409 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-13 13:31:03,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:31:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:03,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:03,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:03,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:31:03,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:03,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:31:03,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:03,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:03,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:03,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:03,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:03,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:31:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:03,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:03,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:03,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 13:31:03,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:03,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:31:03,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:03,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:03,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:03,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:03,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:03,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:31:03,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:03,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:03,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:03,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:31:03,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:03,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:31:03,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:03,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:03,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:03,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:03,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:03,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:31:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:03,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:03,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:03,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:03,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:03,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:31:03,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:03,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:03,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:03,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:03,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:03,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:31:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:03,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:03,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:03,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:03,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:03,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:31:03,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:03,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:03,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:03,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:03,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:03,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:31:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:03,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:03,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:03,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:03,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:03,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:31:03,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:03,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:03,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:03,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:03,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:03,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 13:31:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:03,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:03,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:03,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:03,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:03,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:31:03,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:03,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:03,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:03,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:03,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:03,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 13:31:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:03,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:03,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:03,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:03,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:03,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:31:03,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:03,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:03,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:03,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:03,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:03,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:31:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:03,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:03,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:03,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:03,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:03,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:31:03,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:03,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:03,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:03,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:03,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:03,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 13:31:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:03,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:03,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:03,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:03,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:03,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:31:03,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:03,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:03,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:03,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:03,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:03,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-13 13:31:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:03,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:03,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:03,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:03,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:03,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:31:03,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:03,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:03,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:03,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:03,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:03,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-13 13:31:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:03,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:03,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:03,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:31:03,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:03,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:31:03,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:03,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:03,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 13:31:03,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:31:03,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:03,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:31:03,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1700052151] [2020-10-13 13:31:03,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:31:03,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 13:31:03,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080711935] [2020-10-13 13:31:03,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:31:03,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:31:03,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:31:03,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:31:03,740 INFO L87 Difference]: Start difference. First operand 19725 states and 28424 transitions. Second operand 12 states. [2020-10-13 13:31:05,619 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-13 13:31:11,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:31:11,812 INFO L93 Difference]: Finished difference Result 57697 states and 83818 transitions. [2020-10-13 13:31:11,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 13:31:11,813 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 150 [2020-10-13 13:31:11,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:31:11,990 INFO L225 Difference]: With dead ends: 57697 [2020-10-13 13:31:11,990 INFO L226 Difference]: Without dead ends: 38051 [2020-10-13 13:31:12,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=225, Invalid=587, Unknown=0, NotChecked=0, Total=812 [2020-10-13 13:31:12,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38051 states. [2020-10-13 13:31:16,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38051 to 38049. [2020-10-13 13:31:16,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38049 states. [2020-10-13 13:31:16,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38049 states to 38049 states and 54616 transitions. [2020-10-13 13:31:16,375 INFO L78 Accepts]: Start accepts. Automaton has 38049 states and 54616 transitions. Word has length 150 [2020-10-13 13:31:16,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:31:16,376 INFO L479 AbstractCegarLoop]: Abstraction has 38049 states and 54616 transitions. [2020-10-13 13:31:16,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:31:16,376 INFO L276 IsEmpty]: Start isEmpty. Operand 38049 states and 54616 transitions. [2020-10-13 13:31:16,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-13 13:31:16,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:31:16,380 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] [2020-10-13 13:31:16,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:31:16,380 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:31:16,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:31:16,380 INFO L82 PathProgramCache]: Analyzing trace with hash -105498928, now seen corresponding path program 1 times [2020-10-13 13:31:16,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:31:16,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [84565530] [2020-10-13 13:31:16,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:31:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:16,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:16,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:16,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:18,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:21,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:21,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 13:31:21,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:31:21,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-13 13:31:21,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:21,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:31:21,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-13 13:31:21,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:31:21,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:21,686 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-13 13:31:21,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:31:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:21,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:21,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:21,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:31:21,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:21,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-13 13:31:21,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:21,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:21,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:21,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:21,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:31:21,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:31:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:21,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:21,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:21,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 13:31:21,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:21,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:31:21,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:21,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:21,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:21,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:21,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:31:21,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:31:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:21,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:21,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:21,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:31:21,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:21,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:31:21,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:21,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:21,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:21,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:21,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:31:21,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:31:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:21,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:21,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:21,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:21,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:21,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:31:21,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:21,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:21,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:21,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:31:21,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:21,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:31:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:21,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:21,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:21,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:21,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:21,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:31:21,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:21,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:21,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:21,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:31:21,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:22,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:31:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:22,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:22,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:22,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:22,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:22,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:31:22,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:22,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:22,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:22,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:31:22,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:22,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 13:31:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:22,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:22,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:22,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:22,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:22,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:31:22,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:22,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:22,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:22,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:31:22,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:22,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 13:31:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:22,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:22,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:22,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:22,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:22,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:31:22,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:22,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:22,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:22,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:31:22,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:22,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:31:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:22,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:22,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:22,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:31:22,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:22,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:31:22,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:22,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:31:22,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:31:22,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:31:22,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:22,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 13:31:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:22,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:22,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:22,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:22,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:22,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:31:22,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:22,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:22,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:22,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:22,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:31:22,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-13 13:31:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:22,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:22,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:22,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:22,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:22,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:31:22,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:22,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:22,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:22,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:22,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:31:22,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-13 13:31:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:22,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:22,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:22,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:31:22,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:22,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:31:22,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:22,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:22,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:31:22,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:22,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:22,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:31:22,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [84565530] [2020-10-13 13:31:22,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:31:22,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-13 13:31:22,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068327206] [2020-10-13 13:31:22,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 13:31:22,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:31:22,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 13:31:22,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:31:22,313 INFO L87 Difference]: Start difference. First operand 38049 states and 54616 transitions. Second operand 15 states. [2020-10-13 13:31:22,944 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-13 13:31:24,140 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 13:31:25,999 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:31:28,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:31:28,832 INFO L93 Difference]: Finished difference Result 85085 states and 120907 transitions. [2020-10-13 13:31:28,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-13 13:31:28,833 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 150 [2020-10-13 13:31:28,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:31:29,038 INFO L225 Difference]: With dead ends: 85085 [2020-10-13 13:31:29,038 INFO L226 Difference]: Without dead ends: 47115 [2020-10-13 13:31:29,127 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=307, Invalid=883, Unknown=0, NotChecked=0, Total=1190 [2020-10-13 13:31:29,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47115 states. [2020-10-13 13:31:32,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47115 to 38323. [2020-10-13 13:31:32,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38323 states. [2020-10-13 13:31:32,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38323 states to 38323 states and 54986 transitions. [2020-10-13 13:31:32,707 INFO L78 Accepts]: Start accepts. Automaton has 38323 states and 54986 transitions. Word has length 150 [2020-10-13 13:31:32,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:31:32,708 INFO L479 AbstractCegarLoop]: Abstraction has 38323 states and 54986 transitions. [2020-10-13 13:31:32,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 13:31:32,708 INFO L276 IsEmpty]: Start isEmpty. Operand 38323 states and 54986 transitions. [2020-10-13 13:31:32,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-13 13:31:32,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:31:32,711 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] [2020-10-13 13:31:32,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 13:31:32,712 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:31:32,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:31:32,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1059982520, now seen corresponding path program 1 times [2020-10-13 13:31:32,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:31:32,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1362094671] [2020-10-13 13:31:32,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:31:32,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:32,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:32,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:32,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:33,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:37,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:37,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 13:31:37,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:31:37,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 13:31:37,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:37,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:31:37,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-13 13:31:37,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 13:31:37,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:37,981 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-13 13:31:37,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:31:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:37,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:37,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:37,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:31:37,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:37,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:31:37,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:37,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:37,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:37,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:37,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:38,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:31:38,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:38,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:38,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:38,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 13:31:38,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:38,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:31:38,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:38,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:38,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:38,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:38,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:38,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:31:38,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:38,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:38,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:38,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:31:38,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:38,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:31:38,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:38,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:38,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:38,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:38,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:38,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:31:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:38,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:38,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:38,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:38,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:38,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:31:38,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:38,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:38,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:38,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:31:38,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:38,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:31:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:38,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:38,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:38,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:38,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:38,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:31:38,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:38,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:38,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:38,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:31:38,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:38,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:31:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:38,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:38,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:38,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:38,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:38,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:31:38,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:38,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:38,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:38,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:31:38,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:38,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 13:31:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:38,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:38,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:38,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:38,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:38,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:31:38,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:38,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:38,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:38,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:31:38,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:38,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 13:31:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:38,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:38,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:38,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:31:38,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:38,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:31:38,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:38,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:31:38,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:31:38,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:31:38,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:38,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-13 13:31:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:38,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:38,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:38,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:38,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:38,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:31:38,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:38,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:38,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:38,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:38,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:38,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 13:31:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:38,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:38,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:38,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:38,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:38,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:31:38,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:38,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:38,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:38,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:38,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:38,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-13 13:31:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:38,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:38,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:38,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:38,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:38,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:31:38,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:38,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:38,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:38,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:38,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:38,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-13 13:31:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:38,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:38,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:38,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:31:38,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:38,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:31:38,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:38,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:38,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:31:38,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:38,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:38,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:31:38,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1362094671] [2020-10-13 13:31:38,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:31:38,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-13 13:31:38,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667482857] [2020-10-13 13:31:38,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 13:31:38,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:31:38,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 13:31:38,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:31:38,351 INFO L87 Difference]: Start difference. First operand 38323 states and 54986 transitions. Second operand 15 states. [2020-10-13 13:31:39,003 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-13 13:31:39,997 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 13:31:40,149 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:31:42,746 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:31:45,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:31:45,942 INFO L93 Difference]: Finished difference Result 89763 states and 127771 transitions. [2020-10-13 13:31:45,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-13 13:31:45,943 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 150 [2020-10-13 13:31:45,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:31:46,085 INFO L225 Difference]: With dead ends: 89763 [2020-10-13 13:31:46,085 INFO L226 Difference]: Without dead ends: 51679 [2020-10-13 13:31:46,142 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=307, Invalid=883, Unknown=0, NotChecked=0, Total=1190 [2020-10-13 13:31:46,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51679 states. [2020-10-13 13:31:48,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51679 to 38436. [2020-10-13 13:31:48,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38436 states. [2020-10-13 13:31:48,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38436 states to 38436 states and 55135 transitions. [2020-10-13 13:31:48,777 INFO L78 Accepts]: Start accepts. Automaton has 38436 states and 55135 transitions. Word has length 150 [2020-10-13 13:31:48,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:31:48,778 INFO L479 AbstractCegarLoop]: Abstraction has 38436 states and 55135 transitions. [2020-10-13 13:31:48,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 13:31:48,778 INFO L276 IsEmpty]: Start isEmpty. Operand 38436 states and 55135 transitions. [2020-10-13 13:31:48,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-13 13:31:48,780 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:31:48,780 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] [2020-10-13 13:31:48,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 13:31:48,781 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:31:48,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:31:48,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1926986192, now seen corresponding path program 1 times [2020-10-13 13:31:48,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:31:48,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257152674] [2020-10-13 13:31:48,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:31:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:48,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:48,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:48,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:49,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:53,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:53,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 13:31:53,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:31:53,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 13:31:53,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:53,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:31:53,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-13 13:31:53,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 13:31:53,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:54,041 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-13 13:31:54,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:31:54,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:54,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:54,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:54,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:31:54,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:54,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:31:54,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:54,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:54,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:54,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:54,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:54,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:31:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:54,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:54,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:54,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 13:31:54,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:54,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:31:54,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:54,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:54,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:54,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:54,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:54,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:31:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:54,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:54,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:54,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:31:54,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:54,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:31:54,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:54,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:54,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:54,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:54,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:54,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:31:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:54,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:54,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:54,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:54,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:54,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:31:54,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:54,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:54,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:54,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:31:54,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:54,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:31:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:54,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:54,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:54,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:54,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:54,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:31:54,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:54,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:54,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:54,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:31:54,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:54,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:31:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:54,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:54,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:54,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:54,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:54,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:31:54,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:54,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:31:54,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:31:54,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:31:54,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:54,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 13:31:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:54,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:54,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:54,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:31:54,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:54,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:31:54,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:54,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:31:54,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:31:54,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:31:54,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:54,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-13 13:31:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:54,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:54,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:54,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:54,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:54,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:31:54,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:54,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:54,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:54,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:54,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:54,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-13 13:31:54,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:54,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:54,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:54,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:54,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:54,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:31:54,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:54,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:54,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:54,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:54,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:54,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 13:31:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:54,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:54,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:54,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:54,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:54,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:31:54,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:54,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:54,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:54,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:54,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:54,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-13 13:31:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:54,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:54,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:54,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:31:54,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:54,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:31:54,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:54,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:54,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:31:54,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:54,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:54,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-13 13:31:54,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:31:54,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:31:54,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:31:54,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:31:54,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:31:54,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:31:54,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:31:54,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:31:54,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:31:54,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:31:54,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:31:54,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:31:54,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [257152674] [2020-10-13 13:31:54,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:31:54,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-13 13:31:54,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782977519] [2020-10-13 13:31:54,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 13:31:54,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:31:54,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 13:31:54,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:31:54,396 INFO L87 Difference]: Start difference. First operand 38436 states and 55135 transitions. Second operand 15 states. [2020-10-13 13:31:55,035 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-13 13:31:55,597 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-13 13:31:56,055 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 13:31:56,206 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 116