/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:16:54,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:16:54,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:16:54,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:16:54,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:16:54,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:16:54,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:16:54,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:16:54,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:16:54,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:16:54,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:16:54,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:16:54,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:16:54,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:16:54,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:16:54,962 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:16:54,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:16:54,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:16:54,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:16:54,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:16:54,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:16:54,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:16:54,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:16:54,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:16:54,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:16:54,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:16:54,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:16:54,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:16:54,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:16:54,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:16:54,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:16:54,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:16:54,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:16:54,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:16:55,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:16:55,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:16:55,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:16:55,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:16:55,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:16:55,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:16:55,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:16:55,008 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 [2020-10-14 22:16:55,045 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:16:55,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:16:55,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:16:55,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:16:55,048 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:16:55,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:16:55,049 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:16:55,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:16:55,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:16:55,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:16:55,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:16:55,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:16:55,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:16:55,051 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:16:55,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:16:55,052 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:16:55,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:16:55,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:16:55,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:16:55,052 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:16:55,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:16:55,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:16:55,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:16:55,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:16:55,054 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:16:55,054 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:16:55,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:16:55,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:16:55,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:16:55,054 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 22:16:55,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:16:55,375 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:16:55,379 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:16:55,380 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:16:55,381 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:16:55,382 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label38.c [2020-10-14 22:16:55,448 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bdc70386b/9a12cb9e49134d93be001bf02d6ac857/FLAG0e2d116b0 [2020-10-14 22:16:56,132 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:16:56,133 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label38.c [2020-10-14 22:16:56,158 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bdc70386b/9a12cb9e49134d93be001bf02d6ac857/FLAG0e2d116b0 [2020-10-14 22:16:56,349 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bdc70386b/9a12cb9e49134d93be001bf02d6ac857 [2020-10-14 22:16:56,358 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:16:56,360 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:16:56,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:16:56,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:16:56,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:16:56,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:16:56" (1/1) ... [2020-10-14 22:16:56,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240fc400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:56, skipping insertion in model container [2020-10-14 22:16:56,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:16:56" (1/1) ... [2020-10-14 22:16:56,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:16:56,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:16:57,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:16:57,414 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:16:57,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:16:57,757 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:16:57,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:57 WrapperNode [2020-10-14 22:16:57,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:16:57,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:16:57,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:16:57,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:16:57,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:57" (1/1) ... [2020-10-14 22:16:57,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:57" (1/1) ... [2020-10-14 22:16:57,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:57" (1/1) ... [2020-10-14 22:16:57,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:57" (1/1) ... [2020-10-14 22:16:57,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:57" (1/1) ... [2020-10-14 22:16:57,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:57" (1/1) ... [2020-10-14 22:16:57,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:57" (1/1) ... [2020-10-14 22:16:57,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:16:57,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:16:57,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:16:57,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:16:57,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:57" (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 [2020-10-14 22:16:58,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:16:58,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:16:58,002 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:16:58,002 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:16:58,002 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:16:58,002 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:16:58,002 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:16:58,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:16:58,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:16:58,003 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:16:58,003 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:16:58,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:16:58,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:17:00,480 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:17:00,480 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:17:00,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:17:00 BoogieIcfgContainer [2020-10-14 22:17:00,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:17:00,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:17:00,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:17:00,495 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:17:00,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:16:56" (1/3) ... [2020-10-14 22:17:00,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24995b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:17:00, skipping insertion in model container [2020-10-14 22:17:00,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:57" (2/3) ... [2020-10-14 22:17:00,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24995b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:17:00, skipping insertion in model container [2020-10-14 22:17:00,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:17:00" (3/3) ... [2020-10-14 22:17:00,500 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label38.c [2020-10-14 22:17:00,511 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:17:00,527 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:17:00,542 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:17:00,578 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:17:00,578 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:17:00,578 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:17:00,578 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:17:00,578 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:17:00,578 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:17:00,578 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:17:00,578 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:17:00,607 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 22:17:00,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-14 22:17:00,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:00,615 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:17:00,615 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:00,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:00,622 INFO L82 PathProgramCache]: Analyzing trace with hash 47604442, now seen corresponding path program 1 times [2020-10-14 22:17:00,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:00,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [304515620] [2020-10-14 22:17:00,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:00,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:00,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:01,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:01,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 22:17:01,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:01,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-10-14 22:17:01,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:01,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:01,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:17:01,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:17:01,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 22:17:01,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 22:17:01,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:01,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:01,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:01,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:01,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:01,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:17:01,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:01,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:01,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:01,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:01,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:17:01,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:01,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:17:01,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [304515620] [2020-10-14 22:17:01,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:17:01,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 22:17:01,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706102764] [2020-10-14 22:17:01,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:17:01,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:01,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:17:01,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:17:01,301 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 5 states. [2020-10-14 22:17:06,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:06,509 INFO L93 Difference]: Finished difference Result 1515 states and 2848 transitions. [2020-10-14 22:17:06,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:17:06,511 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-14 22:17:06,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:06,541 INFO L225 Difference]: With dead ends: 1515 [2020-10-14 22:17:06,542 INFO L226 Difference]: Without dead ends: 1038 [2020-10-14 22:17:06,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:17:06,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2020-10-14 22:17:06,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1031. [2020-10-14 22:17:06,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2020-10-14 22:17:06,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1642 transitions. [2020-10-14 22:17:06,680 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1642 transitions. Word has length 17 [2020-10-14 22:17:06,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:06,681 INFO L479 AbstractCegarLoop]: Abstraction has 1031 states and 1642 transitions. [2020-10-14 22:17:06,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:17:06,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1642 transitions. [2020-10-14 22:17:06,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-14 22:17:06,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:06,693 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:17:06,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:17:06,694 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:06,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:06,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1828903046, now seen corresponding path program 1 times [2020-10-14 22:17:06,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:06,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [372711694] [2020-10-14 22:17:06,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:06,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:06,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:07,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:08,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:08,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:11,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:11,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-14 22:17:11,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:17:11,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4902 [2020-10-14 22:17:11,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:11,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:11,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:17:11,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:17:11,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:17:11,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:17:11,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:11,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:11,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:11,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:11,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:11,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:17:11,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:11,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:11,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:11,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:11,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:17:11,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:17:11,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:11,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:11,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:11,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:11,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 22:17:11,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:17:11,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 22:17:11,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:11,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:11,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:11,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:11,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 22:17:11,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 22:17:12,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 22:17:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:12,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:12,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:12,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 22:17:12,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:12,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-14 22:17:12,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:12,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:12,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:12,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:12,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 22:17:12,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:17:12,374 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 89 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 22:17:12,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [372711694] [2020-10-14 22:17:12,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:12,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:17:12,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199133264] [2020-10-14 22:17:12,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:17:12,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:12,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:17:12,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:17:12,379 INFO L87 Difference]: Start difference. First operand 1031 states and 1642 transitions. Second operand 8 states. [2020-10-14 22:17:16,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:16,694 INFO L93 Difference]: Finished difference Result 2769 states and 4527 transitions. [2020-10-14 22:17:16,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:17:16,695 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 199 [2020-10-14 22:17:16,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:16,712 INFO L225 Difference]: With dead ends: 2769 [2020-10-14 22:17:16,712 INFO L226 Difference]: Without dead ends: 1744 [2020-10-14 22:17:16,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:17:16,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2020-10-14 22:17:16,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1727. [2020-10-14 22:17:16,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1727 states. [2020-10-14 22:17:16,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 2598 transitions. [2020-10-14 22:17:16,825 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 2598 transitions. Word has length 199 [2020-10-14 22:17:16,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:16,832 INFO L479 AbstractCegarLoop]: Abstraction has 1727 states and 2598 transitions. [2020-10-14 22:17:16,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:17:16,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 2598 transitions. [2020-10-14 22:17:16,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-10-14 22:17:16,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:16,851 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:17:16,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:17:16,852 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:16,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:16,852 INFO L82 PathProgramCache]: Analyzing trace with hash 419209642, now seen corresponding path program 1 times [2020-10-14 22:17:16,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:16,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1880948770] [2020-10-14 22:17:16,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:16,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:17,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:17,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:19,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:19,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:17:19,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:17:19,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2489 [2020-10-14 22:17:19,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:19,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:19,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:19,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-14 22:17:19,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:17:19,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:19,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:19,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:19,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:19,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:19,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:19,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:19,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:17:19,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:19,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:19,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:19,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:19,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:19,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:19,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:19,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:19,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:19,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:17:19,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:19,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 22:17:19,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:19,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:19,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:19,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:19,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:17:19,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:17:19,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 22:17:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:19,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:19,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:19,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 22:17:19,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:19,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-14 22:17:19,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:19,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:19,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:19,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:19,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 22:17:19,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 22:17:19,957 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 22:17:19,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1880948770] [2020-10-14 22:17:19,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:19,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:17:19,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073917885] [2020-10-14 22:17:19,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:17:19,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:19,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:17:19,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:17:19,960 INFO L87 Difference]: Start difference. First operand 1727 states and 2598 transitions. Second operand 7 states. [2020-10-14 22:17:25,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:25,603 INFO L93 Difference]: Finished difference Result 4524 states and 6798 transitions. [2020-10-14 22:17:25,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:17:25,605 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 239 [2020-10-14 22:17:25,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:25,626 INFO L225 Difference]: With dead ends: 4524 [2020-10-14 22:17:25,628 INFO L226 Difference]: Without dead ends: 2446 [2020-10-14 22:17:25,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:17:25,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2020-10-14 22:17:25,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 2423. [2020-10-14 22:17:25,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2423 states. [2020-10-14 22:17:25,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 2799 transitions. [2020-10-14 22:17:25,733 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 2799 transitions. Word has length 239 [2020-10-14 22:17:25,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:25,735 INFO L479 AbstractCegarLoop]: Abstraction has 2423 states and 2799 transitions. [2020-10-14 22:17:25,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:17:25,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 2799 transitions. [2020-10-14 22:17:25,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-14 22:17:25,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:25,741 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:17:25,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:17:25,741 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:25,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:25,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1131626995, now seen corresponding path program 1 times [2020-10-14 22:17:25,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:25,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1826054935] [2020-10-14 22:17:25,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:25,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:26,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:26,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:28,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:29,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:29,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-10-14 22:17:29,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:17:29,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3484 [2020-10-14 22:17:29,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:29,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:29,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:29,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-14 22:17:29,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 22:17:29,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:29,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:29,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:29,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:29,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:29,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:29,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:17:29,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:29,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:29,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:29,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:29,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:29,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:29,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:29,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:29,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:29,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:17:29,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:29,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 22:17:29,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:29,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:29,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:29,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:29,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:17:29,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:29,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 22:17:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:29,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:29,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:29,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:17:29,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:29,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-14 22:17:29,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:29,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:29,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:29,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:29,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 22:17:29,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:29,800 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 127 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 22:17:29,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1826054935] [2020-10-14 22:17:29,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:29,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:17:29,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896277836] [2020-10-14 22:17:29,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:17:29,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:29,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:17:29,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:17:29,806 INFO L87 Difference]: Start difference. First operand 2423 states and 2799 transitions. Second operand 7 states. [2020-10-14 22:17:33,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:33,974 INFO L93 Difference]: Finished difference Result 6978 states and 8327 transitions. [2020-10-14 22:17:33,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:17:33,975 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 242 [2020-10-14 22:17:33,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:34,008 INFO L225 Difference]: With dead ends: 6978 [2020-10-14 22:17:34,008 INFO L226 Difference]: Without dead ends: 4565 [2020-10-14 22:17:34,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:17:34,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4565 states. [2020-10-14 22:17:34,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4565 to 3467. [2020-10-14 22:17:34,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3467 states. [2020-10-14 22:17:34,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3467 states to 3467 states and 3900 transitions. [2020-10-14 22:17:34,139 INFO L78 Accepts]: Start accepts. Automaton has 3467 states and 3900 transitions. Word has length 242 [2020-10-14 22:17:34,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:34,140 INFO L479 AbstractCegarLoop]: Abstraction has 3467 states and 3900 transitions. [2020-10-14 22:17:34,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:17:34,143 INFO L276 IsEmpty]: Start isEmpty. Operand 3467 states and 3900 transitions. [2020-10-14 22:17:34,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-10-14 22:17:34,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:34,149 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:17:34,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:17:34,150 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:34,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:34,150 INFO L82 PathProgramCache]: Analyzing trace with hash 819298270, now seen corresponding path program 1 times [2020-10-14 22:17:34,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:34,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2100770657] [2020-10-14 22:17:34,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:34,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:34,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:34,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:35,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:37,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:37,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 283 [2020-10-14 22:17:37,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:17:37,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3195 [2020-10-14 22:17:37,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:37,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:37,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:17:37,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 154 [2020-10-14 22:17:37,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 22:17:37,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:37,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:37,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:37,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:37,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:37,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:37,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:17:37,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:37,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:37,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:37,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:37,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:37,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:37,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:37,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:37,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:37,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:17:37,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:37,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-14 22:17:37,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:37,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:37,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:37,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:37,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 22:17:37,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:37,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-14 22:17:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:37,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:37,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:38,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:38,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:17:38,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:17:38,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-14 22:17:38,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:38,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:38,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:38,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:38,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 22:17:38,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:38,175 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 22:17:38,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2100770657] [2020-10-14 22:17:38,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:38,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:17:38,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493693933] [2020-10-14 22:17:38,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:17:38,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:38,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:17:38,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:17:38,179 INFO L87 Difference]: Start difference. First operand 3467 states and 3900 transitions. Second operand 5 states. [2020-10-14 22:17:40,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:40,667 INFO L93 Difference]: Finished difference Result 6601 states and 7456 transitions. [2020-10-14 22:17:40,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:17:40,668 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 271 [2020-10-14 22:17:40,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:40,686 INFO L225 Difference]: With dead ends: 6601 [2020-10-14 22:17:40,686 INFO L226 Difference]: Without dead ends: 3481 [2020-10-14 22:17:40,694 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:17:40,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3481 states. [2020-10-14 22:17:40,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3481 to 3467. [2020-10-14 22:17:40,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3467 states. [2020-10-14 22:17:40,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3467 states to 3467 states and 3796 transitions. [2020-10-14 22:17:40,759 INFO L78 Accepts]: Start accepts. Automaton has 3467 states and 3796 transitions. Word has length 271 [2020-10-14 22:17:40,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:40,760 INFO L479 AbstractCegarLoop]: Abstraction has 3467 states and 3796 transitions. [2020-10-14 22:17:40,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:17:40,760 INFO L276 IsEmpty]: Start isEmpty. Operand 3467 states and 3796 transitions. [2020-10-14 22:17:40,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-10-14 22:17:40,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:40,770 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:17:40,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:17:40,770 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:40,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:40,770 INFO L82 PathProgramCache]: Analyzing trace with hash -445279446, now seen corresponding path program 1 times [2020-10-14 22:17:40,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:40,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068618326] [2020-10-14 22:17:40,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:40,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:40,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:40,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:41,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:42,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:45,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:45,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 409 [2020-10-14 22:17:45,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:17:45,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-14 22:17:45,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:45,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:45,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:45,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 266 [2020-10-14 22:17:45,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 22:17:45,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:45,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:45,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:45,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:45,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:45,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:45,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:17:45,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:45,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:45,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:45,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:45,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:45,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:45,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:45,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:46,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:46,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:17:46,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:46,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:17:46,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:46,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:46,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:46,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:46,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:46,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:46,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-14 22:17:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:46,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:46,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:46,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:17:46,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:46,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 22:17:46,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:46,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:46,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:46,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:46,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 22:17:46,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:17:46,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2020-10-14 22:17:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:46,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:46,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:46,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-14 22:17:46,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:46,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 22:17:46,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:46,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:46,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:46,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:46,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 22:17:46,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:46,434 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 263 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-10-14 22:17:46,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068618326] [2020-10-14 22:17:46,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:46,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:17:46,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309764244] [2020-10-14 22:17:46,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:17:46,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:46,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:17:46,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:17:46,437 INFO L87 Difference]: Start difference. First operand 3467 states and 3796 transitions. Second operand 7 states. [2020-10-14 22:17:49,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:49,429 INFO L93 Difference]: Finished difference Result 10049 states and 11240 transitions. [2020-10-14 22:17:49,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:17:49,430 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 395 [2020-10-14 22:17:49,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:49,466 INFO L225 Difference]: With dead ends: 10049 [2020-10-14 22:17:49,466 INFO L226 Difference]: Without dead ends: 6929 [2020-10-14 22:17:49,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:17:49,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6929 states. [2020-10-14 22:17:49,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6929 to 5537. [2020-10-14 22:17:49,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5537 states. [2020-10-14 22:17:49,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5537 states to 5537 states and 6179 transitions. [2020-10-14 22:17:49,647 INFO L78 Accepts]: Start accepts. Automaton has 5537 states and 6179 transitions. Word has length 395 [2020-10-14 22:17:49,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:49,648 INFO L479 AbstractCegarLoop]: Abstraction has 5537 states and 6179 transitions. [2020-10-14 22:17:49,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:17:49,649 INFO L276 IsEmpty]: Start isEmpty. Operand 5537 states and 6179 transitions. [2020-10-14 22:17:49,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2020-10-14 22:17:49,663 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:49,663 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:17:49,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:17:49,664 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:49,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:49,664 INFO L82 PathProgramCache]: Analyzing trace with hash 825617047, now seen corresponding path program 1 times [2020-10-14 22:17:49,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:49,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730827717] [2020-10-14 22:17:49,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:49,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:49,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:51,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:53,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:53,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 460 [2020-10-14 22:17:53,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:17:53,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3481 [2020-10-14 22:17:53,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:53,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:53,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:53,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 266 [2020-10-14 22:17:53,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-14 22:17:53,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:53,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:53,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:53,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:53,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:53,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:53,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:53,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:17:53,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:53,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:53,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:53,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:53,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:53,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:53,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:53,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:53,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:53,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:17:53,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:53,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:17:53,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:53,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:53,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:53,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:53,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:53,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:53,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-14 22:17:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:53,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:53,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:53,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:17:53,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:53,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:17:53,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:53,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:53,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:53,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:53,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 22:17:53,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:53,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2020-10-14 22:17:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:53,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:53,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:53,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 22:17:53,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:53,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-14 22:17:53,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:53,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:53,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:53,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:53,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-14 22:17:53,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:53,857 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 283 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-10-14 22:17:53,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730827717] [2020-10-14 22:17:53,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:53,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:17:53,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518340500] [2020-10-14 22:17:53,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:17:53,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:53,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:17:53,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:17:53,861 INFO L87 Difference]: Start difference. First operand 5537 states and 6179 transitions. Second operand 7 states. [2020-10-14 22:17:56,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:56,827 INFO L93 Difference]: Finished difference Result 10775 states and 12112 transitions. [2020-10-14 22:17:56,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:17:56,827 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 446 [2020-10-14 22:17:56,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:56,856 INFO L225 Difference]: With dead ends: 10775 [2020-10-14 22:17:56,857 INFO L226 Difference]: Without dead ends: 5581 [2020-10-14 22:17:56,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:17:56,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5581 states. [2020-10-14 22:17:56,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5581 to 5202. [2020-10-14 22:17:56,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5202 states. [2020-10-14 22:17:57,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5202 states to 5202 states and 5682 transitions. [2020-10-14 22:17:57,006 INFO L78 Accepts]: Start accepts. Automaton has 5202 states and 5682 transitions. Word has length 446 [2020-10-14 22:17:57,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:57,007 INFO L479 AbstractCegarLoop]: Abstraction has 5202 states and 5682 transitions. [2020-10-14 22:17:57,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:17:57,007 INFO L276 IsEmpty]: Start isEmpty. Operand 5202 states and 5682 transitions. [2020-10-14 22:17:57,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2020-10-14 22:17:57,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:57,035 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:17:57,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:17:57,036 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:57,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:57,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1729010830, now seen corresponding path program 1 times [2020-10-14 22:17:57,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:57,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1102470456] [2020-10-14 22:17:57,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:57,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:57,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:58,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:58,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:59,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:02,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:02,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 571 [2020-10-14 22:18:02,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:18:02,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 22:18:02,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:02,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:02,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:02,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 266 [2020-10-14 22:18:02,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 289 [2020-10-14 22:18:02,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:02,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:02,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:02,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:02,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:02,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:02,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:18:02,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:02,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:02,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:02,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:02,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:02,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:02,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:02,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:02,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:02,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:02,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:18:02,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:02,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:18:02,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:02,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:02,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:02,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:02,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:02,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:02,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-14 22:18:02,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:02,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:02,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:02,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:18:02,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:02,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 22:18:02,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:02,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:02,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:02,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:02,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 22:18:02,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:02,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2020-10-14 22:18:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:02,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:02,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:02,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:18:02,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:02,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 420 [2020-10-14 22:18:02,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:02,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:02,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:02,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:02,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 287 [2020-10-14 22:18:02,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:03,278 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 283 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-10-14 22:18:03,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1102470456] [2020-10-14 22:18:03,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:03,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:03,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816517226] [2020-10-14 22:18:03,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:03,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:03,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:03,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:03,281 INFO L87 Difference]: Start difference. First operand 5202 states and 5682 transitions. Second operand 7 states. [2020-10-14 22:18:06,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:06,045 INFO L93 Difference]: Finished difference Result 12801 states and 14182 transitions. [2020-10-14 22:18:06,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:18:06,046 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 557 [2020-10-14 22:18:06,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:06,082 INFO L225 Difference]: With dead ends: 12801 [2020-10-14 22:18:06,083 INFO L226 Difference]: Without dead ends: 7250 [2020-10-14 22:18:06,096 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:18:06,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7250 states. [2020-10-14 22:18:06,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7250 to 6558. [2020-10-14 22:18:06,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6558 states. [2020-10-14 22:18:06,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6558 states to 6558 states and 7087 transitions. [2020-10-14 22:18:06,216 INFO L78 Accepts]: Start accepts. Automaton has 6558 states and 7087 transitions. Word has length 557 [2020-10-14 22:18:06,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:06,217 INFO L479 AbstractCegarLoop]: Abstraction has 6558 states and 7087 transitions. [2020-10-14 22:18:06,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:18:06,217 INFO L276 IsEmpty]: Start isEmpty. Operand 6558 states and 7087 transitions. [2020-10-14 22:18:06,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 771 [2020-10-14 22:18:06,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:06,235 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:18:06,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:18:06,236 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:06,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:06,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1573496873, now seen corresponding path program 1 times [2020-10-14 22:18:06,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:06,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [265005100] [2020-10-14 22:18:06,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:06,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:06,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:06,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:06,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:06,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:10,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:11,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:11,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 788 [2020-10-14 22:18:11,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:18:11,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 22:18:11,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:11,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:11,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:18:11,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 291 [2020-10-14 22:18:11,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 303 [2020-10-14 22:18:11,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:11,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:11,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:11,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:11,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:11,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:11,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:18:11,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:11,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:11,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:11,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:11,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:11,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:11,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:11,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:11,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:11,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:18:11,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:11,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:18:11,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:11,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:11,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:11,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:11,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:11,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:11,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 22:18:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:11,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:11,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:11,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:18:11,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:11,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 22:18:11,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:11,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:11,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:11,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:11,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 22:18:11,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:11,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-10-14 22:18:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:11,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:12,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:12,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 22:18:12,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:12,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 444 [2020-10-14 22:18:12,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:12,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:12,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:18:12,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:12,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 304 [2020-10-14 22:18:12,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:12,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:18:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:12,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:12,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:12,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 22:18:12,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:12,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:18:12,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:12,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:12,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:18:12,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:12,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:18:12,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:12,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 588 [2020-10-14 22:18:12,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:12,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:12,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:12,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 22:18:12,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:12,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:18:12,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:12,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:12,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:12,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 22:18:12,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:12,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:12,682 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 326 proven. 172 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2020-10-14 22:18:12,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [265005100] [2020-10-14 22:18:12,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:12,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:18:12,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986686634] [2020-10-14 22:18:12,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:18:12,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:12,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:18:12,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:18:12,686 INFO L87 Difference]: Start difference. First operand 6558 states and 7087 transitions. Second operand 8 states. [2020-10-14 22:18:16,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:16,926 INFO L93 Difference]: Finished difference Result 16002 states and 17986 transitions. [2020-10-14 22:18:16,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 22:18:16,927 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 770 [2020-10-14 22:18:16,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:16,962 INFO L225 Difference]: With dead ends: 16002 [2020-10-14 22:18:16,962 INFO L226 Difference]: Without dead ends: 9450 [2020-10-14 22:18:16,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:18:16,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9450 states. [2020-10-14 22:18:17,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9450 to 8752. [2020-10-14 22:18:17,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8752 states. [2020-10-14 22:18:17,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8752 states to 8752 states and 9693 transitions. [2020-10-14 22:18:17,166 INFO L78 Accepts]: Start accepts. Automaton has 8752 states and 9693 transitions. Word has length 770 [2020-10-14 22:18:17,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:17,167 INFO L479 AbstractCegarLoop]: Abstraction has 8752 states and 9693 transitions. [2020-10-14 22:18:17,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:18:17,168 INFO L276 IsEmpty]: Start isEmpty. Operand 8752 states and 9693 transitions. [2020-10-14 22:18:17,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1063 [2020-10-14 22:18:17,225 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:17,226 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:18:17,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:18:17,227 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:17,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:17,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1025066519, now seen corresponding path program 1 times [2020-10-14 22:18:17,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:17,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964938985] [2020-10-14 22:18:17,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:17,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:17,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:17,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:17,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:22,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:22,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1084 [2020-10-14 22:18:22,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:18:22,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 22:18:22,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:22,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:22,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:22,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 547 [2020-10-14 22:18:22,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 22:18:22,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:22,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:22,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:22,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:22,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:22,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:22,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:18:22,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:22,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:22,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:22,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:22,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:22,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:22,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:22,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:22,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:22,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:18:22,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:22,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:18:22,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:22,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:22,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:22,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:22,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:22,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:22,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 22:18:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:22,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:22,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:22,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:18:22,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:22,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:18:22,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:22,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:22,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:22,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:22,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:22,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:22,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-10-14 22:18:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:22,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:22,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:22,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:18:22,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:22,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:18:22,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:22,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:22,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:22,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:22,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:22,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:22,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2020-10-14 22:18:22,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:22,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:22,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:22,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:18:22,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:22,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:18:22,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:22,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:22,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:22,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:22,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 22:18:22,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:22,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2020-10-14 22:18:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:22,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:22,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:22,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:18:22,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:22,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-14 22:18:22,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:22,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:22,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:22,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:22,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 22:18:22,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:23,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 754 [2020-10-14 22:18:23,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:23,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:23,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:23,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-14 22:18:23,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:23,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 22:18:23,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:23,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:23,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:23,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 299 [2020-10-14 22:18:23,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:23,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:23,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:18:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:23,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:23,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:23,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 22:18:23,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:23,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:18:23,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:23,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:23,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:23,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:23,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:23,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:24,051 INFO L134 CoverageAnalysis]: Checked inductivity of 2079 backedges. 610 proven. 214 refuted. 0 times theorem prover too weak. 1255 trivial. 0 not checked. [2020-10-14 22:18:24,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964938985] [2020-10-14 22:18:24,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:24,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:24,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951442752] [2020-10-14 22:18:24,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:24,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:24,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:24,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:24,054 INFO L87 Difference]: Start difference. First operand 8752 states and 9693 transitions. Second operand 7 states. [2020-10-14 22:18:27,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:27,041 INFO L93 Difference]: Finished difference Result 17508 states and 19402 transitions. [2020-10-14 22:18:27,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:18:27,042 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1062 [2020-10-14 22:18:27,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:27,071 INFO L225 Difference]: With dead ends: 17508 [2020-10-14 22:18:27,071 INFO L226 Difference]: Without dead ends: 8762 [2020-10-14 22:18:27,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:18:27,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8762 states. [2020-10-14 22:18:27,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8762 to 8407. [2020-10-14 22:18:27,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8407 states. [2020-10-14 22:18:27,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8407 states to 8407 states and 9280 transitions. [2020-10-14 22:18:27,294 INFO L78 Accepts]: Start accepts. Automaton has 8407 states and 9280 transitions. Word has length 1062 [2020-10-14 22:18:27,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:27,296 INFO L479 AbstractCegarLoop]: Abstraction has 8407 states and 9280 transitions. [2020-10-14 22:18:27,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:18:27,296 INFO L276 IsEmpty]: Start isEmpty. Operand 8407 states and 9280 transitions. [2020-10-14 22:18:27,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1197 [2020-10-14 22:18:27,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:27,343 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:18:27,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:18:27,344 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:27,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:27,345 INFO L82 PathProgramCache]: Analyzing trace with hash 682032499, now seen corresponding path program 1 times [2020-10-14 22:18:27,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:27,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966588603] [2020-10-14 22:18:27,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:27,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:27,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:27,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:29,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:32,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:32,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1216 [2020-10-14 22:18:32,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:18:32,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-14 22:18:32,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:32,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:32,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:32,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 307 [2020-10-14 22:18:32,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:18:32,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:32,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:32,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:32,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:32,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:32,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:32,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:32,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:18:32,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:32,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:32,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:32,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:32,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:32,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:32,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:32,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:32,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:32,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:18:32,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:32,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:18:32,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:32,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:32,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:32,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:32,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:32,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:32,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 22:18:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:32,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:32,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:32,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:18:32,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:32,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 22:18:32,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:32,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:32,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:32,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:32,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:18:32,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:32,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2020-10-14 22:18:32,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:32,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:33,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:33,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:18:33,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:33,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-14 22:18:33,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:33,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:33,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:33,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:33,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:18:33,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:33,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2020-10-14 22:18:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:33,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:33,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:33,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:18:33,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:33,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:18:33,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:33,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:33,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:33,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:18:33,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:33,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:33,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2020-10-14 22:18:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:33,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:33,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:33,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 22:18:33,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:33,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 22:18:33,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:33,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:33,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:33,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 22:18:33,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:33,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:33,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 901 [2020-10-14 22:18:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:33,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:33,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:33,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:18:33,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:33,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 22:18:33,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:33,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:33,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:33,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 22:18:33,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:33,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:34,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2181 backedges. 378 proven. 591 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2020-10-14 22:18:34,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966588603] [2020-10-14 22:18:34,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:34,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:34,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202187614] [2020-10-14 22:18:34,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:34,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:34,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:34,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:34,527 INFO L87 Difference]: Start difference. First operand 8407 states and 9280 transitions. Second operand 7 states. [2020-10-14 22:18:38,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:38,526 INFO L93 Difference]: Finished difference Result 17151 states and 18918 transitions. [2020-10-14 22:18:38,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:18:38,527 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1196 [2020-10-14 22:18:38,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:38,563 INFO L225 Difference]: With dead ends: 17151 [2020-10-14 22:18:38,563 INFO L226 Difference]: Without dead ends: 8750 [2020-10-14 22:18:38,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:18:38,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8750 states. [2020-10-14 22:18:38,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8750 to 8748. [2020-10-14 22:18:38,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8748 states. [2020-10-14 22:18:38,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8748 states to 8748 states and 9624 transitions. [2020-10-14 22:18:38,777 INFO L78 Accepts]: Start accepts. Automaton has 8748 states and 9624 transitions. Word has length 1196 [2020-10-14 22:18:38,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:38,778 INFO L479 AbstractCegarLoop]: Abstraction has 8748 states and 9624 transitions. [2020-10-14 22:18:38,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:18:38,778 INFO L276 IsEmpty]: Start isEmpty. Operand 8748 states and 9624 transitions. [2020-10-14 22:18:38,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1323 [2020-10-14 22:18:38,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:38,856 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:18:38,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:18:38,857 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:38,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:38,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1158842459, now seen corresponding path program 1 times [2020-10-14 22:18:38,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:38,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2144036547] [2020-10-14 22:18:38,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:39,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:39,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:39,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:39,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:40,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:43,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:43,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1344 [2020-10-14 22:18:43,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:18:43,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 22:18:43,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:43,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:43,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:18:43,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 291 [2020-10-14 22:18:43,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 420 [2020-10-14 22:18:43,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:44,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:44,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:44,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:44,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:44,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:44,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:18:44,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:44,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:44,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:44,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:44,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:44,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:44,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:44,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:44,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:44,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:18:44,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:44,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:18:44,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:44,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:44,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:44,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:44,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:44,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:44,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 22:18:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:44,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:44,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:44,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:18:44,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:44,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 22:18:44,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:44,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:44,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:44,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:44,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 22:18:44,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:44,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-10-14 22:18:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:44,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:44,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:44,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:18:44,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:44,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 22:18:44,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:44,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:44,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:44,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:44,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 22:18:44,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:44,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2020-10-14 22:18:44,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:44,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:44,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:44,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:18:44,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:44,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-14 22:18:44,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:44,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:44,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:44,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:44,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:18:44,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:45,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 702 [2020-10-14 22:18:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:45,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:45,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:45,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:18:45,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:45,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:18:45,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:45,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:45,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:45,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:18:45,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:45,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:45,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 773 [2020-10-14 22:18:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:45,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:45,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:45,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 22:18:45,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:45,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 22:18:45,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:45,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:45,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:45,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 22:18:45,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:45,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:45,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1027 [2020-10-14 22:18:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:45,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:45,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:45,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:18:45,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:45,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-14 22:18:45,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:45,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:45,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:45,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 22:18:45,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:45,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:47,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2952 backedges. 657 proven. 1070 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2020-10-14 22:18:47,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2144036547] [2020-10-14 22:18:47,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:47,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:18:47,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285803964] [2020-10-14 22:18:47,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:18:47,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:47,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:18:47,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:18:47,125 INFO L87 Difference]: Start difference. First operand 8748 states and 9624 transitions. Second operand 8 states. [2020-10-14 22:18:51,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:51,342 INFO L93 Difference]: Finished difference Result 18480 states and 21171 transitions. [2020-10-14 22:18:51,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 22:18:51,343 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1322 [2020-10-14 22:18:51,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:51,385 INFO L225 Difference]: With dead ends: 18480 [2020-10-14 22:18:51,385 INFO L226 Difference]: Without dead ends: 10079 [2020-10-14 22:18:51,406 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:18:51,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10079 states. [2020-10-14 22:18:51,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10079 to 9797. [2020-10-14 22:18:51,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9797 states. [2020-10-14 22:18:51,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9797 states to 9797 states and 10764 transitions. [2020-10-14 22:18:51,662 INFO L78 Accepts]: Start accepts. Automaton has 9797 states and 10764 transitions. Word has length 1322 [2020-10-14 22:18:51,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:51,663 INFO L479 AbstractCegarLoop]: Abstraction has 9797 states and 10764 transitions. [2020-10-14 22:18:51,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:18:51,663 INFO L276 IsEmpty]: Start isEmpty. Operand 9797 states and 10764 transitions. [2020-10-14 22:18:51,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1340 [2020-10-14 22:18:51,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:51,706 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:18:51,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:18:51,707 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:51,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:51,708 INFO L82 PathProgramCache]: Analyzing trace with hash 793110058, now seen corresponding path program 1 times [2020-10-14 22:18:51,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:51,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1757118309] [2020-10-14 22:18:51,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:51,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:51,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:52,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:52,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:52,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:52,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:57,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:57,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1361 [2020-10-14 22:18:57,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:18:57,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5190 [2020-10-14 22:18:57,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:57,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:57,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:57,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 452 [2020-10-14 22:18:57,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:18:57,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:57,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:57,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:57,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:57,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:57,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:57,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:18:57,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:57,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:57,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:57,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:57,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:57,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:57,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:57,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:57,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:57,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:57,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:18:57,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:57,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:18:57,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:57,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:57,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:57,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:57,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:57,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:57,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 22:18:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:57,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:57,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:57,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:18:57,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:57,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:18:57,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:57,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:57,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:57,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:57,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:57,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:57,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-14 22:18:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:57,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:57,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:57,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 22:18:57,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:57,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 22:18:57,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:57,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:57,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:57,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:57,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-14 22:18:57,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:57,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2020-10-14 22:18:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:57,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:57,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:57,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:18:57,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:57,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 312 [2020-10-14 22:18:57,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:57,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:57,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:57,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:57,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:18:57,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:58,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 719 [2020-10-14 22:18:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:58,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:58,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:58,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:18:58,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:58,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:18:58,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:58,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:58,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:58,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:18:58,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:58,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:58,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 790 [2020-10-14 22:18:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:58,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:58,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:58,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 22:18:58,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:58,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 22:18:58,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:58,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:58,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:58,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 22:18:58,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:58,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:58,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1044 [2020-10-14 22:18:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:58,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:58,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:58,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:18:58,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:58,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 22:18:58,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:58,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:58,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:58,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 22:18:58,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:58,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:59,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2956 backedges. 545 proven. 591 refuted. 0 times theorem prover too weak. 1820 trivial. 0 not checked. [2020-10-14 22:18:59,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1757118309] [2020-10-14 22:18:59,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:59,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:59,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829220606] [2020-10-14 22:18:59,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:59,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:59,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:59,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:59,942 INFO L87 Difference]: Start difference. First operand 9797 states and 10764 transitions. Second operand 7 states. [2020-10-14 22:19:03,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:03,274 INFO L93 Difference]: Finished difference Result 20329 states and 23548 transitions. [2020-10-14 22:19:03,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:19:03,275 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1339 [2020-10-14 22:19:03,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:03,313 INFO L225 Difference]: With dead ends: 20329 [2020-10-14 22:19:03,313 INFO L226 Difference]: Without dead ends: 11226 [2020-10-14 22:19:03,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:19:03,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11226 states. [2020-10-14 22:19:03,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11226 to 10485. [2020-10-14 22:19:03,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10485 states. [2020-10-14 22:19:03,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10485 states to 10485 states and 11502 transitions. [2020-10-14 22:19:03,604 INFO L78 Accepts]: Start accepts. Automaton has 10485 states and 11502 transitions. Word has length 1339 [2020-10-14 22:19:03,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:03,605 INFO L479 AbstractCegarLoop]: Abstraction has 10485 states and 11502 transitions. [2020-10-14 22:19:03,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:19:03,605 INFO L276 IsEmpty]: Start isEmpty. Operand 10485 states and 11502 transitions. [2020-10-14 22:19:03,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1368 [2020-10-14 22:19:03,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:03,643 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:19:03,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:19:03,643 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:03,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:03,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1280416426, now seen corresponding path program 1 times [2020-10-14 22:19:03,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:03,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1335362275] [2020-10-14 22:19:03,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:03,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:03,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:04,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:04,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:04,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:04,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:08,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:08,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1391 [2020-10-14 22:19:08,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 22:19:08,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-14 22:19:08,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:08,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:08,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:19:08,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 452 [2020-10-14 22:19:08,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 303 [2020-10-14 22:19:08,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:08,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:08,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:08,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:08,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:08,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:08,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:19:08,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:08,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:08,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:08,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:08,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:08,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:08,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:08,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:08,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:08,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:19:08,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:08,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:19:08,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:08,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:08,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:08,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:08,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:08,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:08,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 22:19:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:08,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:08,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:08,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:19:08,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:08,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 22:19:08,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:08,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:08,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:08,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:08,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:08,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:09,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-14 22:19:09,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:09,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:09,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:09,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 22:19:09,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:09,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 22:19:09,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:09,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:09,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:09,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:09,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-14 22:19:09,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:09,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2020-10-14 22:19:09,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:09,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:09,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:09,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 22:19:09,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:09,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336 [2020-10-14 22:19:09,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:09,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:09,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:19:09,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:09,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 304 [2020-10-14 22:19:09,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:09,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:19:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:09,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:09,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:09,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 22:19:09,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:09,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:19:09,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:09,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:09,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:19:09,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:09,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:19:09,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:09,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 747 [2020-10-14 22:19:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:09,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:09,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:09,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:19:09,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:09,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:19:09,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:09,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:09,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:09,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:19:09,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:09,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:09,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 818 [2020-10-14 22:19:09,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:09,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:09,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:09,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 22:19:09,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:09,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 22:19:09,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:09,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:09,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:09,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 22:19:09,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:09,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:09,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1072 [2020-10-14 22:19:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:10,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:10,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:10,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:19:10,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:10,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 22:19:10,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:10,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:10,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:10,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 22:19:10,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:10,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:10,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2969 backedges. 545 proven. 604 refuted. 0 times theorem prover too weak. 1820 trivial. 0 not checked. [2020-10-14 22:19:10,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1335362275] [2020-10-14 22:19:10,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:10,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:19:10,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205893606] [2020-10-14 22:19:10,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:10,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:10,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:10,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:10,956 INFO L87 Difference]: Start difference. First operand 10485 states and 11502 transitions. Second operand 7 states. [2020-10-14 22:19:14,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:14,535 INFO L93 Difference]: Finished difference Result 24467 states and 28156 transitions. [2020-10-14 22:19:14,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:19:14,536 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1367 [2020-10-14 22:19:14,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:14,596 INFO L225 Difference]: With dead ends: 24467 [2020-10-14 22:19:14,596 INFO L226 Difference]: Without dead ends: 14332 [2020-10-14 22:19:14,627 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:19:14,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14332 states. [2020-10-14 22:19:14,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14332 to 13609. [2020-10-14 22:19:14,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13609 states. [2020-10-14 22:19:14,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13609 states to 13609 states and 14991 transitions. [2020-10-14 22:19:14,963 INFO L78 Accepts]: Start accepts. Automaton has 13609 states and 14991 transitions. Word has length 1367 [2020-10-14 22:19:14,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:14,964 INFO L479 AbstractCegarLoop]: Abstraction has 13609 states and 14991 transitions. [2020-10-14 22:19:14,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:19:14,964 INFO L276 IsEmpty]: Start isEmpty. Operand 13609 states and 14991 transitions. [2020-10-14 22:19:15,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1391 [2020-10-14 22:19:15,010 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:15,011 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:19:15,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 22:19:15,012 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:15,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:15,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1417796721, now seen corresponding path program 1 times [2020-10-14 22:19:15,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:15,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1488376259] [2020-10-14 22:19:15,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:15,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:15,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:15,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:15,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:20,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:20,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1412 [2020-10-14 22:19:20,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:19:20,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5100 [2020-10-14 22:19:20,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:20,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:20,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:20,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 565 [2020-10-14 22:19:20,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 287 [2020-10-14 22:19:20,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:20,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:20,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:20,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:20,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:20,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:20,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:20,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:19:20,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:20,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:20,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:20,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:20,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:20,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:20,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:20,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:20,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:20,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 22:19:20,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:20,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:19:20,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:20,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:20,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:20,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:20,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:20,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:20,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-14 22:19:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:20,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:20,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:20,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:19:20,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:20,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:19:20,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:20,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:20,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:20,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:20,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:20,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:20,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-10-14 22:19:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:20,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:20,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:20,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:19:20,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:20,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:19:20,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:20,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:20,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:20,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:20,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:20,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:20,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2020-10-14 22:19:20,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:20,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:20,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:20,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:19:20,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:20,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 22:19:20,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:20,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:20,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:20,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:20,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 22:19:20,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:20,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2020-10-14 22:19:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:20,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:21,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:21,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-10-14 22:19:21,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:21,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 504 [2020-10-14 22:19:21,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:21,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:21,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:21,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:21,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 285 [2020-10-14 22:19:21,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:21,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 841 [2020-10-14 22:19:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:21,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:21,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:21,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 22:19:21,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:21,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 22:19:21,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:21,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:21,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:21,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 22:19:21,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:21,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:21,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1095 [2020-10-14 22:19:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:21,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:22,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:22,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:19:22,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:22,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 22:19:22,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:22,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:22,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:22,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 22:19:22,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:22,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:23,006 INFO L134 CoverageAnalysis]: Checked inductivity of 3267 backedges. 654 proven. 534 refuted. 0 times theorem prover too weak. 2079 trivial. 0 not checked. [2020-10-14 22:19:23,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1488376259] [2020-10-14 22:19:23,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:23,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:19:23,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423843391] [2020-10-14 22:19:23,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:23,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:23,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:23,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:23,008 INFO L87 Difference]: Start difference. First operand 13609 states and 14991 transitions. Second operand 7 states. [2020-10-14 22:19:26,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:26,371 INFO L93 Difference]: Finished difference Result 30311 states and 33583 transitions. [2020-10-14 22:19:26,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:19:26,372 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1390 [2020-10-14 22:19:26,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:26,409 INFO L225 Difference]: With dead ends: 30311 [2020-10-14 22:19:26,409 INFO L226 Difference]: Without dead ends: 17400 [2020-10-14 22:19:26,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:19:26,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17400 states. [2020-10-14 22:19:26,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17400 to 17051. [2020-10-14 22:19:26,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17051 states. [2020-10-14 22:19:26,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17051 states to 17051 states and 18725 transitions. [2020-10-14 22:19:26,725 INFO L78 Accepts]: Start accepts. Automaton has 17051 states and 18725 transitions. Word has length 1390 [2020-10-14 22:19:26,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:26,725 INFO L479 AbstractCegarLoop]: Abstraction has 17051 states and 18725 transitions. [2020-10-14 22:19:26,725 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:19:26,726 INFO L276 IsEmpty]: Start isEmpty. Operand 17051 states and 18725 transitions. [2020-10-14 22:19:26,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1402 [2020-10-14 22:19:26,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:26,770 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:19:26,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 22:19:26,770 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:26,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:26,771 INFO L82 PathProgramCache]: Analyzing trace with hash -281891962, now seen corresponding path program 1 times [2020-10-14 22:19:26,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:26,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258202590] [2020-10-14 22:19:26,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:26,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:26,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:26,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:27,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:27,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:27,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:31,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:31,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1423 [2020-10-14 22:19:31,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:19:31,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5072 [2020-10-14 22:19:31,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:31,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:31,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:31,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 262 [2020-10-14 22:19:31,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 22:19:31,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:32,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:32,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:32,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:32,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:32,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:32,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:19:32,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:32,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:32,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:32,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:32,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:32,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:32,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:32,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:32,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:32,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:19:32,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:32,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:19:32,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:32,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:32,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:32,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:32,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:32,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:32,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 22:19:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:32,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:32,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:32,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:19:32,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:32,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:19:32,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:32,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:32,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:32,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:32,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:19:32,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:32,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-14 22:19:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:32,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:32,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:32,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:19:32,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:32,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-14 22:19:32,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:32,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:32,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:32,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:32,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 22:19:32,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:32,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2020-10-14 22:19:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:32,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:32,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:32,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:19:32,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:32,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 22:19:32,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:32,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:32,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:32,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:19:32,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:32,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:32,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 781 [2020-10-14 22:19:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:32,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:32,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:32,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:19:32,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:32,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:19:32,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:32,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:32,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:32,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:19:32,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:32,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:32,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 852 [2020-10-14 22:19:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:32,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:33,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:33,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 22:19:33,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:33,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 22:19:33,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:33,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:33,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:33,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 22:19:33,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:33,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:33,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1106 [2020-10-14 22:19:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:33,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:33,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:33,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:19:33,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:33,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 22:19:33,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:33,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:33,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:33,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 22:19:33,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:33,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:34,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3142 backedges. 351 proven. 811 refuted. 0 times theorem prover too weak. 1980 trivial. 0 not checked. [2020-10-14 22:19:34,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [258202590] [2020-10-14 22:19:34,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:34,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:19:34,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970902137] [2020-10-14 22:19:34,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:34,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:34,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:34,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:34,610 INFO L87 Difference]: Start difference. First operand 17051 states and 18725 transitions. Second operand 7 states. [2020-10-14 22:19:37,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:37,751 INFO L93 Difference]: Finished difference Result 33412 states and 36750 transitions. [2020-10-14 22:19:37,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:19:37,752 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1401 [2020-10-14 22:19:37,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:37,784 INFO L225 Difference]: With dead ends: 33412 [2020-10-14 22:19:37,785 INFO L226 Difference]: Without dead ends: 17396 [2020-10-14 22:19:37,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:19:37,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17396 states. [2020-10-14 22:19:38,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17396 to 17394. [2020-10-14 22:19:38,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17394 states. [2020-10-14 22:19:38,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17394 states to 17394 states and 19095 transitions. [2020-10-14 22:19:38,187 INFO L78 Accepts]: Start accepts. Automaton has 17394 states and 19095 transitions. Word has length 1401 [2020-10-14 22:19:38,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:38,188 INFO L479 AbstractCegarLoop]: Abstraction has 17394 states and 19095 transitions. [2020-10-14 22:19:38,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:19:38,188 INFO L276 IsEmpty]: Start isEmpty. Operand 17394 states and 19095 transitions. [2020-10-14 22:19:38,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1479 [2020-10-14 22:19:38,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:38,221 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:19:38,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 22:19:38,222 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:38,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:38,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1279313441, now seen corresponding path program 1 times [2020-10-14 22:19:38,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:38,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [505713286] [2020-10-14 22:19:38,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:38,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:38,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:38,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:38,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:43,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:43,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1502 [2020-10-14 22:19:43,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:19:43,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5102 [2020-10-14 22:19:43,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:43,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:43,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:43,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 590 [2020-10-14 22:19:43,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 279 [2020-10-14 22:19:43,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:43,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:43,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:43,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:43,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:43,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:43,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:43,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:19:43,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:43,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:43,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:43,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:43,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:43,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:43,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:43,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:43,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:43,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:19:43,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:43,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:19:43,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:43,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:43,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:43,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:43,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:43,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:43,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 22:19:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:43,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:43,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:43,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:19:43,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:43,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:19:43,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:43,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:43,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:43,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:43,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:43,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:43,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-14 22:19:43,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:43,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:43,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:43,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 22:19:43,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:43,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-14 22:19:43,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:43,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:43,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:43,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:43,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 321 [2020-10-14 22:19:43,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:43,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:19:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:43,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:43,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:43,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 22:19:43,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:43,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:19:43,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:43,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:43,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:43,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:43,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 22:19:43,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:43,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 585 [2020-10-14 22:19:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:44,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:44,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:44,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:19:44,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:44,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-14 22:19:44,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:44,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:44,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:44,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:44,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:19:44,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:44,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 858 [2020-10-14 22:19:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:44,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:44,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:44,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:19:44,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:44,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:19:44,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:44,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:44,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:44,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:19:44,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:44,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:44,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 929 [2020-10-14 22:19:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:44,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:44,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:44,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 22:19:44,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:44,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 22:19:44,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:44,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:44,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:44,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 22:19:44,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:44,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:44,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1183 [2020-10-14 22:19:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:44,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:44,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:44,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:19:44,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:44,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 22:19:44,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:44,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:44,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:44,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 22:19:44,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:44,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:46,052 INFO L134 CoverageAnalysis]: Checked inductivity of 3205 backedges. 630 proven. 591 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2020-10-14 22:19:46,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [505713286] [2020-10-14 22:19:46,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:46,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:19:46,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644317557] [2020-10-14 22:19:46,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:46,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:46,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:46,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:46,055 INFO L87 Difference]: Start difference. First operand 17394 states and 19095 transitions. Second operand 7 states. [2020-10-14 22:19:49,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:49,294 INFO L93 Difference]: Finished difference Result 34164 states and 37832 transitions. [2020-10-14 22:19:49,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:19:49,295 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1478 [2020-10-14 22:19:49,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:49,343 INFO L225 Difference]: With dead ends: 34164 [2020-10-14 22:19:49,343 INFO L226 Difference]: Without dead ends: 17805 [2020-10-14 22:19:49,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:19:49,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17805 states. [2020-10-14 22:19:49,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17805 to 17374. [2020-10-14 22:19:49,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17374 states. [2020-10-14 22:19:49,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17374 states to 17374 states and 19012 transitions. [2020-10-14 22:19:49,611 INFO L78 Accepts]: Start accepts. Automaton has 17374 states and 19012 transitions. Word has length 1478 [2020-10-14 22:19:49,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:49,612 INFO L479 AbstractCegarLoop]: Abstraction has 17374 states and 19012 transitions. [2020-10-14 22:19:49,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:19:49,612 INFO L276 IsEmpty]: Start isEmpty. Operand 17374 states and 19012 transitions. [2020-10-14 22:19:49,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1553 [2020-10-14 22:19:49,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:49,646 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:19:49,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 22:19:49,647 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:49,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:49,647 INFO L82 PathProgramCache]: Analyzing trace with hash 189651303, now seen corresponding path program 1 times [2020-10-14 22:19:49,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:49,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2077166643] [2020-10-14 22:19:49,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:49,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:49,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:50,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:54,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:54,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1578 [2020-10-14 22:19:54,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:19:54,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5088 [2020-10-14 22:19:54,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:54,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:54,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:54,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-14 22:19:54,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 22:19:54,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:54,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:54,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:54,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:54,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:54,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:54,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:19:54,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:54,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:54,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:54,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:54,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:54,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:55,116 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-10-14 22:19:55,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:55,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:55,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:55,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:19:55,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:55,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 22:19:55,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:55,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:55,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:55,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:55,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:19:55,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:55,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 22:19:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:55,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:55,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:55,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:19:55,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:55,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 22:19:55,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:55,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:55,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:55,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:55,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:19:55,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:55,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-14 22:19:55,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:55,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:55,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:55,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 22:19:55,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:55,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 22:19:55,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:55,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:55,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:55,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 22:19:55,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:55,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:55,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:19:55,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:55,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:55,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:55,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 22:19:55,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:55,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:19:55,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:55,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:55,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:55,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:55,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:55,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:55,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 585 [2020-10-14 22:19:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:55,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:55,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:55,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:19:55,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:55,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:19:55,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:55,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:55,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:55,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 22:19:55,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:55,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:55,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 659 [2020-10-14 22:19:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:55,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:55,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:55,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:19:55,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:55,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 22:19:55,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:55,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:55,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:55,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:19:55,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:55,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:56,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-14 22:19:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:56,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:56,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:56,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:19:56,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:56,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:19:56,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:56,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:56,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:56,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:19:56,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:56,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:56,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-14 22:19:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:56,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:56,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:56,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 22:19:56,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:56,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-14 22:19:56,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:56,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:56,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:56,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 22:19:56,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:56,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:56,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1257 [2020-10-14 22:19:56,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:56,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:56,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:56,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:19:56,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:56,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-14 22:19:56,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:56,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:56,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:56,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 22:19:56,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:56,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:57,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3730 backedges. 216 proven. 589 refuted. 0 times theorem prover too weak. 2925 trivial. 0 not checked. [2020-10-14 22:19:57,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2077166643] [2020-10-14 22:19:57,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:57,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:19:57,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529928321] [2020-10-14 22:19:57,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:57,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:57,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:57,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:57,927 INFO L87 Difference]: Start difference. First operand 17374 states and 19012 transitions. Second operand 7 states. [2020-10-14 22:20:00,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:00,782 INFO L93 Difference]: Finished difference Result 34875 states and 37832 transitions. [2020-10-14 22:20:00,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:20:00,783 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1552 [2020-10-14 22:20:00,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:00,810 INFO L225 Difference]: With dead ends: 34875 [2020-10-14 22:20:00,810 INFO L226 Difference]: Without dead ends: 18197 [2020-10-14 22:20:00,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:20:00,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18197 states. [2020-10-14 22:20:01,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18197 to 17778. [2020-10-14 22:20:01,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17778 states. [2020-10-14 22:20:01,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17778 states to 17778 states and 18810 transitions. [2020-10-14 22:20:01,069 INFO L78 Accepts]: Start accepts. Automaton has 17778 states and 18810 transitions. Word has length 1552 [2020-10-14 22:20:01,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:01,069 INFO L479 AbstractCegarLoop]: Abstraction has 17778 states and 18810 transitions. [2020-10-14 22:20:01,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:01,070 INFO L276 IsEmpty]: Start isEmpty. Operand 17778 states and 18810 transitions. [2020-10-14 22:20:01,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1730 [2020-10-14 22:20:01,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:01,108 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:20:01,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 22:20:01,108 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:01,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:01,109 INFO L82 PathProgramCache]: Analyzing trace with hash -284587454, now seen corresponding path program 1 times [2020-10-14 22:20:01,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:01,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1665355193] [2020-10-14 22:20:01,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:01,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:01,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:01,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:02,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:02,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:03,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:06,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:06,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1755 [2020-10-14 22:20:06,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 22:20:06,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-14 22:20:06,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:06,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:06,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:06,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 679 [2020-10-14 22:20:06,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:20:06,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:06,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:06,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:06,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:06,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:06,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:06,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:20:06,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:06,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:06,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:06,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:06,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:06,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:06,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:06,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:06,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:06,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:20:06,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:06,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:20:06,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:06,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:06,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:06,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:06,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:06,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:06,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 22:20:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:06,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:06,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:06,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:20:06,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:06,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 22:20:06,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:06,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:06,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:06,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:06,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:06,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:06,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2020-10-14 22:20:06,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:06,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:06,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:06,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:20:06,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:06,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 22:20:06,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:06,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:06,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:06,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:06,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:06,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:06,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2020-10-14 22:20:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:06,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:06,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:06,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:20:06,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:06,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-14 22:20:06,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:06,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:06,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:06,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:06,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 245 [2020-10-14 22:20:06,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:06,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-14 22:20:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:06,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:07,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:07,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:20:07,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:07,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 492 [2020-10-14 22:20:07,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:07,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:07,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:07,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:07,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:20:07,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:07,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 944 [2020-10-14 22:20:07,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:07,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:07,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:07,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:20:07,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:07,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 22:20:07,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:07,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:07,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:07,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:20:07,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:07,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:07,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1015 [2020-10-14 22:20:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:07,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:07,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:07,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 22:20:07,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:07,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 22:20:07,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:07,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:07,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:07,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 22:20:07,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:07,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:07,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1269 [2020-10-14 22:20:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:07,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:07,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:07,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 22:20:07,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:07,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:20:07,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:07,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:07,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:07,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-14 22:20:07,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:07,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:07,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1434 [2020-10-14 22:20:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:08,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:08,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:08,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:20:08,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:08,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 22:20:08,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:08,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:08,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:08,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 22:20:08,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:08,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:09,348 INFO L134 CoverageAnalysis]: Checked inductivity of 5185 backedges. 820 proven. 753 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2020-10-14 22:20:09,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1665355193] [2020-10-14 22:20:09,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:09,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:20:09,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806092231] [2020-10-14 22:20:09,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:09,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:09,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:09,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:09,350 INFO L87 Difference]: Start difference. First operand 17778 states and 18810 transitions. Second operand 7 states. [2020-10-14 22:20:12,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:12,888 INFO L93 Difference]: Finished difference Result 37564 states and 39781 transitions. [2020-10-14 22:20:12,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:20:12,889 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1729 [2020-10-14 22:20:12,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:12,920 INFO L225 Difference]: With dead ends: 37564 [2020-10-14 22:20:12,920 INFO L226 Difference]: Without dead ends: 19808 [2020-10-14 22:20:12,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:20:12,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19808 states. [2020-10-14 22:20:13,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19808 to 19802. [2020-10-14 22:20:13,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19802 states. [2020-10-14 22:20:13,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19802 states to 19802 states and 20881 transitions. [2020-10-14 22:20:13,249 INFO L78 Accepts]: Start accepts. Automaton has 19802 states and 20881 transitions. Word has length 1729 [2020-10-14 22:20:13,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:13,250 INFO L479 AbstractCegarLoop]: Abstraction has 19802 states and 20881 transitions. [2020-10-14 22:20:13,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:13,250 INFO L276 IsEmpty]: Start isEmpty. Operand 19802 states and 20881 transitions. [2020-10-14 22:20:13,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1999 [2020-10-14 22:20:13,293 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:13,293 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:20:13,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 22:20:13,294 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:13,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:13,295 INFO L82 PathProgramCache]: Analyzing trace with hash -874471648, now seen corresponding path program 1 times [2020-10-14 22:20:13,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:13,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [597609668] [2020-10-14 22:20:13,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:13,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:13,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:13,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:14,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:18,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:18,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:18,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2032 [2020-10-14 22:20:18,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:20:18,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5160 [2020-10-14 22:20:18,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:18,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:18,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 22:20:18,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:20:18,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 330 [2020-10-14 22:20:18,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:18,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:18,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:18,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:18,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:18,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:18,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:20:18,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:18,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:18,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:20:18,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:18,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:18,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:18,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:18,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:18,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:20:18,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:20:18,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 22:20:18,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:18,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:18,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:18,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:18,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 22:20:18,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:18,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 22:20:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:18,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:18,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:18,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:18,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:20:18,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:20:18,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 22:20:18,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:18,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:18,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:18,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:18,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 22:20:18,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:18,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-10-14 22:20:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:18,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:19,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:19,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:20:19,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:19,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 22:20:19,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:19,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:19,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:19,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:19,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:20:19,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:19,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2020-10-14 22:20:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:19,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:19,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:19,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 22:20:19,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:19,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-14 22:20:19,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:19,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:19,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:19,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 22:20:19,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:19,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:19,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:20:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:19,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:19,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:19,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 22:20:19,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:19,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 22:20:19,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:19,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:19,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:19,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:19,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:19,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:19,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2020-10-14 22:20:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:19,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:19,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:19,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:20:19,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:19,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:20:19,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:19,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:19,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:19,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 22:20:19,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:19,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:19,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 729 [2020-10-14 22:20:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:19,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:19,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:19,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:20:19,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:19,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-14 22:20:19,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:19,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:19,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:19,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:20:19,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:19,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:19,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1002 [2020-10-14 22:20:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:19,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:19,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:19,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:20:19,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:19,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:20:19,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:19,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:19,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:19,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:20:19,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:19,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:19,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1073 [2020-10-14 22:20:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:19,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:19,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:19,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 22:20:19,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:19,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 22:20:19,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:19,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:19,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:19,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 22:20:19,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:19,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:19,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1327 [2020-10-14 22:20:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:19,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:20,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:20,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 22:20:20,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:20,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:20:20,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:20,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:20,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:20,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-14 22:20:20,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:20,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:20,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1492 [2020-10-14 22:20:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:20,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:20,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:20,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-14 22:20:20,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:20,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 22:20:20,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:20,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:20,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:20,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 322 [2020-10-14 22:20:20,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:20,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:20,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:20:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:20,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:20,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:20,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 22:20:20,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:20,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:20:20,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:20,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:20,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:20,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:20,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:20,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:20,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1814 [2020-10-14 22:20:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:20,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:20,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:20,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 22:20:20,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:20,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:20:20,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:20,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:20,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:20,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 22:20:20,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:20,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:22,309 INFO L134 CoverageAnalysis]: Checked inductivity of 6811 backedges. 176 proven. 2405 refuted. 0 times theorem prover too weak. 4230 trivial. 0 not checked. [2020-10-14 22:20:22,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [597609668] [2020-10-14 22:20:22,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:22,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 22:20:22,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211517899] [2020-10-14 22:20:22,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 22:20:22,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:22,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 22:20:22,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-14 22:20:22,312 INFO L87 Difference]: Start difference. First operand 19802 states and 20881 transitions. Second operand 9 states. [2020-10-14 22:20:25,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:25,563 INFO L93 Difference]: Finished difference Result 42320 states and 44928 transitions. [2020-10-14 22:20:25,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 22:20:25,564 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1998 [2020-10-14 22:20:25,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:25,602 INFO L225 Difference]: With dead ends: 42320 [2020-10-14 22:20:25,603 INFO L226 Difference]: Without dead ends: 22877 [2020-10-14 22:20:25,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-10-14 22:20:25,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22877 states. [2020-10-14 22:20:25,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22877 to 21148. [2020-10-14 22:20:25,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21148 states. [2020-10-14 22:20:25,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21148 states to 21148 states and 22267 transitions. [2020-10-14 22:20:25,862 INFO L78 Accepts]: Start accepts. Automaton has 21148 states and 22267 transitions. Word has length 1998 [2020-10-14 22:20:25,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:25,862 INFO L479 AbstractCegarLoop]: Abstraction has 21148 states and 22267 transitions. [2020-10-14 22:20:25,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 22:20:25,863 INFO L276 IsEmpty]: Start isEmpty. Operand 21148 states and 22267 transitions. [2020-10-14 22:20:25,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2394 [2020-10-14 22:20:25,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:25,916 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:20:25,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 22:20:25,917 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:25,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:25,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1961405605, now seen corresponding path program 1 times [2020-10-14 22:20:25,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:25,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761773392] [2020-10-14 22:20:25,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:26,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:26,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:27,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking...