/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_label35.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:16:13,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:16:13,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:16:13,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:16:13,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:16:13,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:16:13,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:16:13,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:16:13,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:16:13,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:16:13,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:16:13,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:16:13,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:16:13,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:16:13,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:16:13,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:16:13,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:16:13,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:16:13,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:16:13,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:16:13,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:16:13,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:16:13,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:16:13,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:16:13,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:16:13,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:16:13,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:16:13,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:16:13,902 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:16:13,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:16:13,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:16:13,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:16:13,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:16:13,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:16:13,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:16:13,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:16:13,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:16:13,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:16:13,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:16:13,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:16:13,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:16:13,909 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 22:16:13,930 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:16:13,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:16:13,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:16:13,932 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:16:13,932 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:16:13,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:16:13,933 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:16:13,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:16:13,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:16:13,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:16:13,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:16:13,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:16:13,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:16:13,934 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:16:13,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:16:13,935 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:16:13,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:16:13,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:16:13,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:16:13,935 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:16:13,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:16:13,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:16:13,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:16:13,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:16:13,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:16:13,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:16:13,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:16:13,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:16:13,937 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:16:13,937 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 22:16:14,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:16:14,259 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:16:14,262 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:16:14,264 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:16:14,264 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:16:14,265 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label35.c [2020-10-14 22:16:14,348 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82afb71d4/8404a4845388480dae4cbcb1198aad3b/FLAG205f4611b [2020-10-14 22:16:15,005 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:16:15,008 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label35.c [2020-10-14 22:16:15,034 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82afb71d4/8404a4845388480dae4cbcb1198aad3b/FLAG205f4611b [2020-10-14 22:16:15,189 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82afb71d4/8404a4845388480dae4cbcb1198aad3b [2020-10-14 22:16:15,200 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:16:15,202 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:16:15,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:16:15,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:16:15,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:16:15,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:16:15" (1/1) ... [2020-10-14 22:16:15,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29eb21d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:15, skipping insertion in model container [2020-10-14 22:16:15,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:16:15" (1/1) ... [2020-10-14 22:16:15,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:16:15,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:16:16,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:16:16,385 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:16:16,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:16:16,639 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:16:16,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:16 WrapperNode [2020-10-14 22:16:16,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:16:16,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:16:16,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:16:16,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:16:16,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:16" (1/1) ... [2020-10-14 22:16:16,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:16" (1/1) ... [2020-10-14 22:16:16,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:16" (1/1) ... [2020-10-14 22:16:16,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:16" (1/1) ... [2020-10-14 22:16:16,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:16" (1/1) ... [2020-10-14 22:16:16,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:16" (1/1) ... [2020-10-14 22:16:16,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:16" (1/1) ... [2020-10-14 22:16:16,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:16:16,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:16:16,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:16:16,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:16:16,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:16" (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 22:16:16,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:16:16,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:16:16,944 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:16:16,944 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:16:16,945 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:16:16,945 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:16:16,945 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:16:16,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:16:16,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:16:16,946 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:16:16,946 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:16:16,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:16:16,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:16:19,392 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:16:19,392 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:16:19,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:16:19 BoogieIcfgContainer [2020-10-14 22:16:19,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:16:19,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:16:19,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:16:19,406 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:16:19,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:16:15" (1/3) ... [2020-10-14 22:16:19,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a3b3d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:16:19, skipping insertion in model container [2020-10-14 22:16:19,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:16" (2/3) ... [2020-10-14 22:16:19,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a3b3d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:16:19, skipping insertion in model container [2020-10-14 22:16:19,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:16:19" (3/3) ... [2020-10-14 22:16:19,410 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label35.c [2020-10-14 22:16:19,421 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:16:19,430 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:16:19,445 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:16:19,474 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:16:19,474 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:16:19,474 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:16:19,474 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:16:19,475 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:16:19,475 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:16:19,475 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:16:19,475 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:16:19,502 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 22:16:19,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-14 22:16:19,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:19,514 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:16:19,515 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:19,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:19,521 INFO L82 PathProgramCache]: Analyzing trace with hash 338381554, now seen corresponding path program 1 times [2020-10-14 22:16:19,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:19,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1199354851] [2020-10-14 22:16:19,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:19,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:20,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:20,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-14 22:16:20,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:20,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 428 [2020-10-14 22:16:20,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:20,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:20,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:16:20,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:16:20,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-14 22:16:20,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:16:20,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:20,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:20,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:20,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:20,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:20,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:16:20,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:20,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:20,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:20,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:20,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:16:20,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:20,258 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 22:16:20,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1199354851] [2020-10-14 22:16:20,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:16:20,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:16:20,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069934004] [2020-10-14 22:16:20,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:16:20,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:20,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:16:20,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:16:20,286 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 22:16:23,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:23,920 INFO L93 Difference]: Finished difference Result 1169 states and 2164 transitions. [2020-10-14 22:16:23,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:16:23,923 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-14 22:16:23,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:23,946 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 22:16:23,946 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 22:16:23,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:16:23,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 22:16:24,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 692. [2020-10-14 22:16:24,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-10-14 22:16:24,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1014 transitions. [2020-10-14 22:16:24,067 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1014 transitions. Word has length 47 [2020-10-14 22:16:24,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:24,068 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 1014 transitions. [2020-10-14 22:16:24,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:16:24,068 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1014 transitions. [2020-10-14 22:16:24,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-14 22:16:24,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:24,075 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:16:24,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:16:24,075 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:24,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:24,076 INFO L82 PathProgramCache]: Analyzing trace with hash 2059459070, now seen corresponding path program 1 times [2020-10-14 22:16:24,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:24,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [530685990] [2020-10-14 22:16:24,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:24,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:24,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:25,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:25,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 22:16:25,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:16:25,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 957 [2020-10-14 22:16:25,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:25,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:25,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:16:25,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:16:25,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 22:16:25,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:25,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:25,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:25,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:25,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:25,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:25,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:16:25,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:25,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:25,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:25,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:25,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:16:25,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:25,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:25,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:25,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:25,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:25,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:16:25,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:25,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 22:16:25,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:25,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:25,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:25,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:25,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 22:16:25,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:25,482 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:16:25,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [530685990] [2020-10-14 22:16:25,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:16:25,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 22:16:25,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207084961] [2020-10-14 22:16:25,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:16:25,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:25,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:16:25,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:16:25,487 INFO L87 Difference]: Start difference. First operand 692 states and 1014 transitions. Second operand 8 states. [2020-10-14 22:16:31,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:31,133 INFO L93 Difference]: Finished difference Result 2769 states and 4138 transitions. [2020-10-14 22:16:31,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:16:31,134 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 123 [2020-10-14 22:16:31,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:31,149 INFO L225 Difference]: With dead ends: 2769 [2020-10-14 22:16:31,149 INFO L226 Difference]: Without dead ends: 2083 [2020-10-14 22:16:31,152 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:16:31,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2020-10-14 22:16:31,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 2069. [2020-10-14 22:16:31,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2069 states. [2020-10-14 22:16:31,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 2817 transitions. [2020-10-14 22:16:31,260 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 2817 transitions. Word has length 123 [2020-10-14 22:16:31,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:31,262 INFO L479 AbstractCegarLoop]: Abstraction has 2069 states and 2817 transitions. [2020-10-14 22:16:31,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:16:31,263 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 2817 transitions. [2020-10-14 22:16:31,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-14 22:16:31,274 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:31,274 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 22:16:31,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:16:31,275 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:31,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:31,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1048212561, now seen corresponding path program 1 times [2020-10-14 22:16:31,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:31,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1498339925] [2020-10-14 22:16:31,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:31,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:31,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:31,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:32,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:32,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:33,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:35,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:35,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-14 22:16:35,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 22:16:35,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3707 [2020-10-14 22:16:35,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:35,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:35,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 22:16:35,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:16:35,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 22:16:35,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:35,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:35,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:35,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:35,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:35,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:35,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:16:35,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:35,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:35,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:35,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:35,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:16:35,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:35,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:35,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:35,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:35,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:35,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:16:35,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:16:35,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-14 22:16:35,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:35,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:35,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:35,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:35,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:16:35,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:35,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:16:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:35,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:35,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:35,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:35,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:35,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:16:35,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:16:35,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330 [2020-10-14 22:16:35,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:35,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:35,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:35,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:35,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 22:16:35,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:35,852 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 72 proven. 11 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-14 22:16:35,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1498339925] [2020-10-14 22:16:35,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:16:35,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:16:35,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485854233] [2020-10-14 22:16:35,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:16:35,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:35,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:16:35,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:16:35,855 INFO L87 Difference]: Start difference. First operand 2069 states and 2817 transitions. Second operand 7 states. [2020-10-14 22:16:43,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:43,209 INFO L93 Difference]: Finished difference Result 7228 states and 10414 transitions. [2020-10-14 22:16:43,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 22:16:43,210 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 210 [2020-10-14 22:16:43,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:43,244 INFO L225 Difference]: With dead ends: 7228 [2020-10-14 22:16:43,245 INFO L226 Difference]: Without dead ends: 5165 [2020-10-14 22:16:43,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:16:43,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5165 states. [2020-10-14 22:16:43,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5165 to 4478. [2020-10-14 22:16:43,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4478 states. [2020-10-14 22:16:43,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4478 states to 4478 states and 6247 transitions. [2020-10-14 22:16:43,426 INFO L78 Accepts]: Start accepts. Automaton has 4478 states and 6247 transitions. Word has length 210 [2020-10-14 22:16:43,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:43,429 INFO L479 AbstractCegarLoop]: Abstraction has 4478 states and 6247 transitions. [2020-10-14 22:16:43,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:16:43,429 INFO L276 IsEmpty]: Start isEmpty. Operand 4478 states and 6247 transitions. [2020-10-14 22:16:43,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2020-10-14 22:16:43,446 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:43,446 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 22:16:43,446 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:16:43,447 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:43,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:43,447 INFO L82 PathProgramCache]: Analyzing trace with hash 692696979, now seen corresponding path program 1 times [2020-10-14 22:16:43,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:43,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [423211590] [2020-10-14 22:16:43,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:43,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:43,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:43,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:44,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:44,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:47,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:47,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:48,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:48,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 394 [2020-10-14 22:16:48,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 22:16:48,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 22:16:48,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:48,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:48,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 22:16:48,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:16:48,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 343 [2020-10-14 22:16:48,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:48,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:48,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:48,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:48,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:48,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:48,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:16:48,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:48,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:16:48,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:48,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:48,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:48,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:48,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:48,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:48,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:16:48,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:16:48,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 22:16:48,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:48,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:48,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:48,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:48,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:16:48,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:48,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:16:48,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:48,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:48,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:49,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:49,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:16:49,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:16:49,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-14 22:16:49,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:49,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:49,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:49,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:49,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:16:49,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:49,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-14 22:16:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:49,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:49,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:49,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 22:16:49,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:49,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 22:16:49,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:49,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:49,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:49,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:49,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 22:16:49,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:49,474 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 306 proven. 4 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-14 22:16:49,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [423211590] [2020-10-14 22:16:49,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:16:49,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:16:49,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861129427] [2020-10-14 22:16:49,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:16:49,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:49,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:16:49,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:16:49,479 INFO L87 Difference]: Start difference. First operand 4478 states and 6247 transitions. Second operand 7 states. [2020-10-14 22:16:53,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:53,531 INFO L93 Difference]: Finished difference Result 10714 states and 15684 transitions. [2020-10-14 22:16:53,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:16:53,534 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 380 [2020-10-14 22:16:53,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:53,573 INFO L225 Difference]: With dead ends: 10714 [2020-10-14 22:16:53,573 INFO L226 Difference]: Without dead ends: 6242 [2020-10-14 22:16:53,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 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 22:16:53,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6242 states. [2020-10-14 22:16:53,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6242 to 5869. [2020-10-14 22:16:53,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5869 states. [2020-10-14 22:16:53,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5869 states to 5869 states and 8160 transitions. [2020-10-14 22:16:53,751 INFO L78 Accepts]: Start accepts. Automaton has 5869 states and 8160 transitions. Word has length 380 [2020-10-14 22:16:53,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:53,754 INFO L479 AbstractCegarLoop]: Abstraction has 5869 states and 8160 transitions. [2020-10-14 22:16:53,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:16:53,755 INFO L276 IsEmpty]: Start isEmpty. Operand 5869 states and 8160 transitions. [2020-10-14 22:16:53,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2020-10-14 22:16:53,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:53,776 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 22:16:53,776 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:16:53,776 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:53,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:53,777 INFO L82 PathProgramCache]: Analyzing trace with hash 154056250, now seen corresponding path program 1 times [2020-10-14 22:16:53,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:53,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1432937783] [2020-10-14 22:16:53,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:53,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:54,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:54,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:54,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:56,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:56,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:57,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:58,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:58,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 511 [2020-10-14 22:16:58,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 22:16:58,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-14 22:16:58,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:58,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:58,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:16:58,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 22:16:58,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 22:16:58,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:16:59,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:59,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:59,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:59,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:59,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:59,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:16:59,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:59,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:59,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:59,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:59,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:59,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:59,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:59,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:59,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:59,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:59,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:16:59,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:59,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 22:16:59,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:59,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:59,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:59,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:59,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:16:59,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:59,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:16:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:59,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:59,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:59,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:59,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:16:59,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:16:59,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 586 [2020-10-14 22:16:59,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:59,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:59,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:59,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:59,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 22:16:59,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:59,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-14 22:16:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:59,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:00,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:00,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:17:00,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:00,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-14 22:17:00,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:00,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:00,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:00,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:00,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:17:00,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:00,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2020-10-14 22:17:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:00,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:00,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:00,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 22:17:00,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:00,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 22:17:00,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:00,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:00,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:00,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 22:17:00,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:00,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:00,856 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 344 proven. 212 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2020-10-14 22:17:00,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1432937783] [2020-10-14 22:17:00,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:00,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:17:00,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540132178] [2020-10-14 22:17:00,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:17:00,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:00,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:17:00,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:17:00,860 INFO L87 Difference]: Start difference. First operand 5869 states and 8160 transitions. Second operand 7 states. [2020-10-14 22:17:05,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:05,379 INFO L93 Difference]: Finished difference Result 12481 states and 17342 transitions. [2020-10-14 22:17:05,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:17:05,380 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 495 [2020-10-14 22:17:05,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:05,404 INFO L225 Difference]: With dead ends: 12481 [2020-10-14 22:17:05,404 INFO L226 Difference]: Without dead ends: 5555 [2020-10-14 22:17:05,421 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:17:05,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5555 states. [2020-10-14 22:17:05,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5555 to 5533. [2020-10-14 22:17:05,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5533 states. [2020-10-14 22:17:05,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5533 states to 5533 states and 6287 transitions. [2020-10-14 22:17:05,534 INFO L78 Accepts]: Start accepts. Automaton has 5533 states and 6287 transitions. Word has length 495 [2020-10-14 22:17:05,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:05,535 INFO L479 AbstractCegarLoop]: Abstraction has 5533 states and 6287 transitions. [2020-10-14 22:17:05,535 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:17:05,535 INFO L276 IsEmpty]: Start isEmpty. Operand 5533 states and 6287 transitions. [2020-10-14 22:17:05,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2020-10-14 22:17:05,557 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:05,557 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 3, 3, 3, 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 22:17:05,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:17:05,558 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:05,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:05,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1132368453, now seen corresponding path program 1 times [2020-10-14 22:17:05,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:05,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456742776] [2020-10-14 22:17:05,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:05,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:05,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:05,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:06,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:10,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:10,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 626 [2020-10-14 22:17:10,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:17:10,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 22:17:10,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:10,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:10,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:10,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:17:10,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:17:10,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:10,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:10,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:10,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:10,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:10,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:10,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:17:10,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:10,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:10,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:10,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:10,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:10,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:10,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:10,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:10,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:10,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:10,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:17:10,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:10,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 22:17:10,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:10,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:10,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:10,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:10,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 22:17:10,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:10,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 22:17:10,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:10,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:11,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:11,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:17:11,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:11,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-14 22:17:11,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:11,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:11,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:11,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:11,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:17:11,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:11,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-14 22:17:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:11,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:11,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:11,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:17:11,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:11,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 22:17:11,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:11,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:11,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:11,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:17:11,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:11,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:11,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 22:17:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:11,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:11,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:11,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:17:11,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:11,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 22:17:11,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:11,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:11,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:11,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:17:11,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:11,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:11,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-14 22:17:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:11,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:11,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:11,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 22:17:11,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:11,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 22:17:11,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:11,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:11,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:11,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 22:17:11,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:11,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:12,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 309 proven. 325 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2020-10-14 22:17:12,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456742776] [2020-10-14 22:17:12,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:12,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:17:12,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200524661] [2020-10-14 22:17:12,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:17:12,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:12,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:17:12,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:17:12,047 INFO L87 Difference]: Start difference. First operand 5533 states and 6287 transitions. Second operand 8 states. [2020-10-14 22:17:16,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:16,621 INFO L93 Difference]: Finished difference Result 14805 states and 17028 transitions. [2020-10-14 22:17:16,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:17:16,622 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 608 [2020-10-14 22:17:16,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:16,657 INFO L225 Difference]: With dead ends: 14805 [2020-10-14 22:17:16,657 INFO L226 Difference]: Without dead ends: 9278 [2020-10-14 22:17:16,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:17:16,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9278 states. [2020-10-14 22:17:16,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9278 to 8937. [2020-10-14 22:17:16,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8937 states. [2020-10-14 22:17:16,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8937 states to 8937 states and 10030 transitions. [2020-10-14 22:17:16,847 INFO L78 Accepts]: Start accepts. Automaton has 8937 states and 10030 transitions. Word has length 608 [2020-10-14 22:17:16,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:16,847 INFO L479 AbstractCegarLoop]: Abstraction has 8937 states and 10030 transitions. [2020-10-14 22:17:16,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:17:16,848 INFO L276 IsEmpty]: Start isEmpty. Operand 8937 states and 10030 transitions. [2020-10-14 22:17:16,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 907 [2020-10-14 22:17:16,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:16,868 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 22:17:16,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:17:16,869 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:16,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:16,869 INFO L82 PathProgramCache]: Analyzing trace with hash 834628719, now seen corresponding path program 1 times [2020-10-14 22:17:16,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:16,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [298207056] [2020-10-14 22:17:16,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:17,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:17,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:17,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:18,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:18,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:22,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:22,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 924 [2020-10-14 22:17:22,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:17:22,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-14 22:17:22,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:22,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:22,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:17:22,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:17:22,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-14 22:17:22,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:17:22,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:22,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:22,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:22,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:22,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:22,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:17:22,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:22,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:22,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:22,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:22,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:17:22,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:22,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:22,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:22,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:22,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:22,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:17:22,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:17:22,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 405 [2020-10-14 22:17:22,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:22,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:22,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:22,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:22,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-14 22:17:22,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:22,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:17:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:22,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:23,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:23,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:17:23,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:23,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-14 22:17:23,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:23,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:23,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:23,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:23,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:17:23,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:23,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-14 22:17:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:23,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:23,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:23,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:17:23,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:23,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 22:17:23,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:23,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:23,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:23,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:17:23,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:23,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:23,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 619 [2020-10-14 22:17:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:23,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:23,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:23,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:17:23,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:23,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:17:23,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:23,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:23,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:23,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:17:23,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:23,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:23,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 729 [2020-10-14 22:17:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:23,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:23,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:23,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 22:17:23,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:23,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:17:23,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:23,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:23,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:23,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-14 22:17:23,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:23,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:24,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1508 backedges. 453 proven. 356 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2020-10-14 22:17:24,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [298207056] [2020-10-14 22:17:24,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:24,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:17:24,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987799766] [2020-10-14 22:17:24,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:17:24,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:24,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:17:24,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:17:24,092 INFO L87 Difference]: Start difference. First operand 8937 states and 10030 transitions. Second operand 7 states. [2020-10-14 22:17:26,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:26,806 INFO L93 Difference]: Finished difference Result 17878 states and 20090 transitions. [2020-10-14 22:17:26,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:17:26,813 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 906 [2020-10-14 22:17:26,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:26,843 INFO L225 Difference]: With dead ends: 17878 [2020-10-14 22:17:26,843 INFO L226 Difference]: Without dead ends: 9284 [2020-10-14 22:17:26,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 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 22:17:26,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9284 states. [2020-10-14 22:17:27,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9284 to 8941. [2020-10-14 22:17:27,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8941 states. [2020-10-14 22:17:27,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8941 states to 8941 states and 10000 transitions. [2020-10-14 22:17:27,039 INFO L78 Accepts]: Start accepts. Automaton has 8941 states and 10000 transitions. Word has length 906 [2020-10-14 22:17:27,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:27,040 INFO L479 AbstractCegarLoop]: Abstraction has 8941 states and 10000 transitions. [2020-10-14 22:17:27,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:17:27,041 INFO L276 IsEmpty]: Start isEmpty. Operand 8941 states and 10000 transitions. [2020-10-14 22:17:27,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 975 [2020-10-14 22:17:27,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:27,066 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:17:27,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:17:27,066 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:27,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:27,067 INFO L82 PathProgramCache]: Analyzing trace with hash 623039683, now seen corresponding path program 1 times [2020-10-14 22:17:27,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:27,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [634068466] [2020-10-14 22:17:27,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:27,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:27,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:27,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:29,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:32,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:32,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 994 [2020-10-14 22:17:32,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:17:32,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5056 [2020-10-14 22:17:32,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:32,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:32,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:32,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 413 [2020-10-14 22:17:32,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 22:17:32,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:32,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:32,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:32,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:32,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:32,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:32,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:17:32,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:32,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:32,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:32,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:32,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:32,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:32,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:32,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:32,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:32,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:17:32,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:32,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:17:32,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:32,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:32,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:32,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:32,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:32,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:32,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:17:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:32,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:32,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:32,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:17:32,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:32,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 22:17:32,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:32,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:32,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:32,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:32,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-14 22:17:32,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:32,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:17:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:32,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:32,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:32,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:17:32,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:32,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-14 22:17:32,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:32,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:32,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:32,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:32,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-14 22:17:32,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:32,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2020-10-14 22:17:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:32,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:32,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:32,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:17:32,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:32,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:17:32,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:32,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:32,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:32,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:17:32,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:32,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:32,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 687 [2020-10-14 22:17:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:33,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:33,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:33,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:17:33,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:33,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:17:33,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:33,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:33,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:33,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:17:33,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:33,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:33,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 797 [2020-10-14 22:17:33,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:33,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:33,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:33,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 22:17:33,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:33,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:17:33,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:33,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:33,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:33,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-14 22:17:33,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:33,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:33,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2151 backedges. 588 proven. 356 refuted. 0 times theorem prover too weak. 1207 trivial. 0 not checked. [2020-10-14 22:17:33,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [634068466] [2020-10-14 22:17:33,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:33,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:17:33,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301398345] [2020-10-14 22:17:33,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:17:33,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:33,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:17:33,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:17:33,543 INFO L87 Difference]: Start difference. First operand 8941 states and 10000 transitions. Second operand 7 states. [2020-10-14 22:17:36,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:36,844 INFO L93 Difference]: Finished difference Result 19264 states and 21785 transitions. [2020-10-14 22:17:36,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:17:36,845 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 974 [2020-10-14 22:17:36,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:36,877 INFO L225 Difference]: With dead ends: 19264 [2020-10-14 22:17:36,877 INFO L226 Difference]: Without dead ends: 10666 [2020-10-14 22:17:36,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:17:36,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10666 states. [2020-10-14 22:17:37,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10666 to 10650. [2020-10-14 22:17:37,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10650 states. [2020-10-14 22:17:37,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10650 states to 10650 states and 11854 transitions. [2020-10-14 22:17:37,093 INFO L78 Accepts]: Start accepts. Automaton has 10650 states and 11854 transitions. Word has length 974 [2020-10-14 22:17:37,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:37,095 INFO L479 AbstractCegarLoop]: Abstraction has 10650 states and 11854 transitions. [2020-10-14 22:17:37,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:17:37,095 INFO L276 IsEmpty]: Start isEmpty. Operand 10650 states and 11854 transitions. [2020-10-14 22:17:37,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2020-10-14 22:17:37,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:37,124 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:17:37,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:17:37,124 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:37,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:37,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1903322410, now seen corresponding path program 1 times [2020-10-14 22:17:37,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:37,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1314492742] [2020-10-14 22:17:37,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:37,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:37,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:38,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:42,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:42,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 997 [2020-10-14 22:17:42,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:17:42,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-14 22:17:42,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:42,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:42,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:42,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 416 [2020-10-14 22:17:42,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 22:17:42,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:42,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:42,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:42,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:42,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:42,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:42,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:17:42,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:42,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:42,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:42,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:42,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:42,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:42,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:42,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:42,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:42,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:17:42,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:42,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:17:42,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:42,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:42,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:42,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:42,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:42,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:42,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:17:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:42,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:42,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:42,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 22:17:42,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:42,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 22:17:42,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:42,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:42,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:42,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:42,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-14 22:17:42,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:42,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-14 22:17:42,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:42,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:42,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:42,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:17:42,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:42,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 22:17:42,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:42,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:42,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:42,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:42,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-14 22:17:42,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:42,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2020-10-14 22:17:42,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:42,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:42,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:42,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:17:42,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:42,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:17:42,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:42,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:42,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:42,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:17:42,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:42,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:42,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 690 [2020-10-14 22:17:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:43,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:43,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:43,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:17:43,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:43,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:17:43,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:43,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:43,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:43,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:17:43,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:43,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:43,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 800 [2020-10-14 22:17:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:43,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:43,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:43,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 22:17:43,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:43,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 22:17:43,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:43,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:43,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:43,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-14 22:17:43,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:43,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:43,650 INFO L134 CoverageAnalysis]: Checked inductivity of 2141 backedges. 583 proven. 356 refuted. 0 times theorem prover too weak. 1202 trivial. 0 not checked. [2020-10-14 22:17:43,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1314492742] [2020-10-14 22:17:43,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:43,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:17:43,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36576018] [2020-10-14 22:17:43,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:17:43,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:43,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:17:43,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:17:43,654 INFO L87 Difference]: Start difference. First operand 10650 states and 11854 transitions. Second operand 7 states. [2020-10-14 22:17:46,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:46,725 INFO L93 Difference]: Finished difference Result 21302 states and 23734 transitions. [2020-10-14 22:17:46,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:17:46,726 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 977 [2020-10-14 22:17:46,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:46,761 INFO L225 Difference]: With dead ends: 21302 [2020-10-14 22:17:46,761 INFO L226 Difference]: Without dead ends: 10995 [2020-10-14 22:17:46,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:17:46,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10995 states. [2020-10-14 22:17:46,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10995 to 10652. [2020-10-14 22:17:46,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10652 states. [2020-10-14 22:17:46,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10652 states to 10652 states and 11557 transitions. [2020-10-14 22:17:46,959 INFO L78 Accepts]: Start accepts. Automaton has 10652 states and 11557 transitions. Word has length 977 [2020-10-14 22:17:46,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:46,961 INFO L479 AbstractCegarLoop]: Abstraction has 10652 states and 11557 transitions. [2020-10-14 22:17:46,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:17:46,961 INFO L276 IsEmpty]: Start isEmpty. Operand 10652 states and 11557 transitions. [2020-10-14 22:17:46,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1118 [2020-10-14 22:17:46,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:46,999 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:17:46,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:17:46,999 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:46,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:47,000 INFO L82 PathProgramCache]: Analyzing trace with hash -443160582, now seen corresponding path program 1 times [2020-10-14 22:17:47,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:47,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1069628256] [2020-10-14 22:17:47,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:47,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:47,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:47,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:49,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:50,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:51,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:52,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:52,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1137 [2020-10-14 22:17:52,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:17:52,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-14 22:17:52,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:52,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:52,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:17:52,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 785 [2020-10-14 22:17:52,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 303 [2020-10-14 22:17:52,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:52,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:52,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:52,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:52,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:52,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:52,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:17:52,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:52,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:52,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:52,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:52,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:52,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:52,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:52,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:52,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:52,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:17:52,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:52,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:17:52,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:52,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:52,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:52,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:52,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:52,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:52,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:17:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:52,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:52,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:52,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:17:52,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:52,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:17:52,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:52,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:52,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:52,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:52,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:52,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:52,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:17:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:52,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:52,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:52,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:17:52,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:52,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 22:17:52,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:52,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:52,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:52,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:52,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:52,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:52,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 633 [2020-10-14 22:17:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:52,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:52,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:52,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:17:52,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:52,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 22:17:52,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:52,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:52,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:52,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:52,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 22:17:52,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:52,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 777 [2020-10-14 22:17:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:52,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:53,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:53,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 22:17:53,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:53,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 348 [2020-10-14 22:17:53,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:53,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:53,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:17:53,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:53,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 304 [2020-10-14 22:17:53,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:53,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:17:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:53,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:53,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:53,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 22:17:53,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:53,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:17:53,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:53,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:53,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:17:53,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:53,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:17:53,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:53,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1950 backedges. 972 proven. 2 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked. [2020-10-14 22:17:53,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1069628256] [2020-10-14 22:17:53,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:53,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:17:53,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722800367] [2020-10-14 22:17:53,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:17:53,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:53,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:17:53,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:17:53,957 INFO L87 Difference]: Start difference. First operand 10652 states and 11557 transitions. Second operand 7 states. [2020-10-14 22:17:57,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:57,276 INFO L93 Difference]: Finished difference Result 22317 states and 24415 transitions. [2020-10-14 22:17:57,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:17:57,277 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1117 [2020-10-14 22:17:57,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:57,306 INFO L225 Difference]: With dead ends: 22317 [2020-10-14 22:17:57,307 INFO L226 Difference]: Without dead ends: 12008 [2020-10-14 22:17:57,320 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 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 22:17:57,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12008 states. [2020-10-14 22:17:57,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12008 to 11663. [2020-10-14 22:17:57,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11663 states. [2020-10-14 22:17:57,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11663 states to 11663 states and 12534 transitions. [2020-10-14 22:17:57,489 INFO L78 Accepts]: Start accepts. Automaton has 11663 states and 12534 transitions. Word has length 1117 [2020-10-14 22:17:57,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:57,490 INFO L479 AbstractCegarLoop]: Abstraction has 11663 states and 12534 transitions. [2020-10-14 22:17:57,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:17:57,491 INFO L276 IsEmpty]: Start isEmpty. Operand 11663 states and 12534 transitions. [2020-10-14 22:17:57,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1410 [2020-10-14 22:17:57,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:57,535 INFO L422 BasicCegarLoop]: trace histogram [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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 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] [2020-10-14 22:17:57,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:17:57,535 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:57,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:57,536 INFO L82 PathProgramCache]: Analyzing trace with hash -947560678, now seen corresponding path program 1 times [2020-10-14 22:17:57,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:57,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1536999871] [2020-10-14 22:17:57,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:57,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:57,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:58,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:02,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:02,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1431 [2020-10-14 22:18:02,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:18:02,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5132 [2020-10-14 22:18:02,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:02,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:02,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:02,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 741 [2020-10-14 22:18:02,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:18:02,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:03,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:03,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:03,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:03,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:03,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:03,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:18:03,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:03,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:03,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:03,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:03,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:03,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:03,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:03,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:03,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:03,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:18:03,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:03,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 22:18:03,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:03,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:03,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:03,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:03,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:03,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:03,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:18:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:03,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:03,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:03,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:18:03,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:03,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 22:18:03,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:03,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:03,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:03,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:03,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:03,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:03,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:18:03,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:03,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:03,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:03,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:18:03,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:03,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:18:03,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:03,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:03,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:03,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:03,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:03,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:03,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:18:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:03,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:03,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:03,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:18:03,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:03,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 22:18:03,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:03,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:03,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:03,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:03,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:18:03,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:03,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-14 22:18:03,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:03,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:03,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:03,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:18:03,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:03,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-10-14 22:18:03,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:03,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:03,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:03,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:03,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:18:03,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:04,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2020-10-14 22:18:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:04,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:04,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:04,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:18:04,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:04,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:18:04,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:04,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:18:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:04,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:04,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1118 [2020-10-14 22:18:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:04,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:04,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:04,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 22:18:04,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:04,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 22:18:04,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:04,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:04,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:04,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 22:18:04,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:04,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:06,687 INFO L134 CoverageAnalysis]: Checked inductivity of 3560 backedges. 1040 proven. 360 refuted. 0 times theorem prover too weak. 2160 trivial. 0 not checked. [2020-10-14 22:18:06,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1536999871] [2020-10-14 22:18:06,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:06,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:06,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85114117] [2020-10-14 22:18:06,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:06,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:06,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:06,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:06,690 INFO L87 Difference]: Start difference. First operand 11663 states and 12534 transitions. Second operand 7 states. [2020-10-14 22:18:09,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:09,904 INFO L93 Difference]: Finished difference Result 24363 states and 26219 transitions. [2020-10-14 22:18:09,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:18:09,904 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1409 [2020-10-14 22:18:09,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:09,935 INFO L225 Difference]: With dead ends: 24363 [2020-10-14 22:18:09,935 INFO L226 Difference]: Without dead ends: 13043 [2020-10-14 22:18:09,950 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 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 22:18:09,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13043 states. [2020-10-14 22:18:10,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13043 to 13023. [2020-10-14 22:18:10,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13023 states. [2020-10-14 22:18:10,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13023 states to 13023 states and 13933 transitions. [2020-10-14 22:18:10,150 INFO L78 Accepts]: Start accepts. Automaton has 13023 states and 13933 transitions. Word has length 1409 [2020-10-14 22:18:10,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:10,151 INFO L479 AbstractCegarLoop]: Abstraction has 13023 states and 13933 transitions. [2020-10-14 22:18:10,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:18:10,151 INFO L276 IsEmpty]: Start isEmpty. Operand 13023 states and 13933 transitions. [2020-10-14 22:18:10,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1566 [2020-10-14 22:18:10,196 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:10,199 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 7, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:18:10,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:18:10,199 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:10,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:10,200 INFO L82 PathProgramCache]: Analyzing trace with hash 318829502, now seen corresponding path program 1 times [2020-10-14 22:18:10,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:10,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [752849378] [2020-10-14 22:18:10,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:10,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:11,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:11,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:11,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:15,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:15,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1591 [2020-10-14 22:18:15,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:18:15,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 22:18:15,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:15,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:15,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:15,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1287 [2020-10-14 22:18:15,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 258 [2020-10-14 22:18:15,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:15,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:15,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:15,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:15,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:15,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:15,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:18:15,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:15,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:15,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:15,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:15,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:15,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:15,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:15,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:15,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:15,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:18:15,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:15,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 22:18:15,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:15,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:15,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:15,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:15,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:15,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:16,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:18:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:16,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:16,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:16,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:18:16,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:16,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:18:16,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:16,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:16,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:16,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:16,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:16,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:16,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:18:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:16,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:16,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:16,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:18:16,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:16,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:18:16,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:16,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:16,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:16,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:16,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:16,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:16,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:18:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:16,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:16,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:16,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:18:16,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:16,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:18:16,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:16,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:16,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:16,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:16,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:16,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:16,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-14 22:18:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:16,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:16,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:16,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:18:16,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:16,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:18:16,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:16,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:16,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:16,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:16,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:16,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:16,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-14 22:18:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:16,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:16,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:16,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:18:16,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:16,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:18:16,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:16,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:16,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:16,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:16,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:16,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:16,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 973 [2020-10-14 22:18:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:16,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:16,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:16,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 22:18:16,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:16,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-14 22:18:16,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:16,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:16,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:16,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:16,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 295 [2020-10-14 22:18:16,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:16,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:18:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:16,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:16,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:16,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 22:18:16,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:16,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:18:16,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:16,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:16,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:16,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:16,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 22:18:16,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:16,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1274 [2020-10-14 22:18:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:16,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:16,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:16,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 22:18:16,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:16,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-14 22:18:16,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:16,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:16,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:16,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:16,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 22:18:16,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:18,069 INFO L134 CoverageAnalysis]: Checked inductivity of 4262 backedges. 1546 proven. 2 refuted. 0 times theorem prover too weak. 2714 trivial. 0 not checked. [2020-10-14 22:18:18,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [752849378] [2020-10-14 22:18:18,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:18,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:18,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100520876] [2020-10-14 22:18:18,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:18,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:18,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:18,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:18,072 INFO L87 Difference]: Start difference. First operand 13023 states and 13933 transitions. Second operand 7 states. [2020-10-14 22:18:21,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:21,468 INFO L93 Difference]: Finished difference Result 27746 states and 29751 transitions. [2020-10-14 22:18:21,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:18:21,475 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1565 [2020-10-14 22:18:21,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:21,506 INFO L225 Difference]: With dead ends: 27746 [2020-10-14 22:18:21,506 INFO L226 Difference]: Without dead ends: 15066 [2020-10-14 22:18:21,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 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 22:18:21,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15066 states. [2020-10-14 22:18:21,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15066 to 15056. [2020-10-14 22:18:21,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15056 states. [2020-10-14 22:18:21,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15056 states to 15056 states and 16049 transitions. [2020-10-14 22:18:21,764 INFO L78 Accepts]: Start accepts. Automaton has 15056 states and 16049 transitions. Word has length 1565 [2020-10-14 22:18:21,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:21,766 INFO L479 AbstractCegarLoop]: Abstraction has 15056 states and 16049 transitions. [2020-10-14 22:18:21,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:18:21,766 INFO L276 IsEmpty]: Start isEmpty. Operand 15056 states and 16049 transitions. [2020-10-14 22:18:21,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1611 [2020-10-14 22:18:21,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:21,815 INFO L422 BasicCegarLoop]: trace histogram [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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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 22:18:21,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:18:21,815 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:21,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:21,816 INFO L82 PathProgramCache]: Analyzing trace with hash -2100383329, now seen corresponding path program 1 times [2020-10-14 22:18:21,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:21,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1826791520] [2020-10-14 22:18:21,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:22,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:22,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:22,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:23,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:23,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:27,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:27,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1632 [2020-10-14 22:18:27,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:18:27,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5091 [2020-10-14 22:18:27,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:27,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:27,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:18:27,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1217 [2020-10-14 22:18:27,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 369 [2020-10-14 22:18:27,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:27,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:27,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:27,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:27,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:27,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:27,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:18:27,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:27,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:27,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:27,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:27,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:27,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:27,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:27,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:27,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:27,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:18:27,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:27,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:18:27,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:27,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:27,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:27,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:27,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:27,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:27,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:18:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:27,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:27,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:27,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:18:27,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:27,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:18:27,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:27,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:27,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:27,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:27,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:27,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:27,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:18:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:27,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:27,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:27,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:18:27,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:27,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:18:27,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:27,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:27,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:27,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:27,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:27,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:27,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 658 [2020-10-14 22:18:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:27,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:27,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:27,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 22:18:27,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:27,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:18:27,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:27,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:27,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:27,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:27,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:27,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:27,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 934 [2020-10-14 22:18:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:27,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:27,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:27,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:18:27,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:27,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-14 22:18:27,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:27,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:27,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:27,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:27,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-14 22:18:27,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:28,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1207 [2020-10-14 22:18:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:28,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:28,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:28,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:28,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:18:28,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:18:28,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 22:18:28,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:28,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:28,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:28,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:28,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 22:18:28,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:28,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1319 [2020-10-14 22:18:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:28,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:28,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:28,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 22:18:28,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:28,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 387 [2020-10-14 22:18:28,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:28,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:28,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:28,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:28,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 22:18:28,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:29,727 INFO L134 CoverageAnalysis]: Checked inductivity of 4242 backedges. 1572 proven. 4 refuted. 0 times theorem prover too weak. 2666 trivial. 0 not checked. [2020-10-14 22:18:29,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1826791520] [2020-10-14 22:18:29,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:29,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:29,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970374405] [2020-10-14 22:18:29,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:29,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:29,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:29,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:29,731 INFO L87 Difference]: Start difference. First operand 15056 states and 16049 transitions. Second operand 7 states. [2020-10-14 22:18:33,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:33,142 INFO L93 Difference]: Finished difference Result 29804 states and 31817 transitions. [2020-10-14 22:18:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:18:33,142 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1610 [2020-10-14 22:18:33,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:33,171 INFO L225 Difference]: With dead ends: 29804 [2020-10-14 22:18:33,171 INFO L226 Difference]: Without dead ends: 14396 [2020-10-14 22:18:33,186 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 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 22:18:33,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14396 states. [2020-10-14 22:18:33,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14396 to 14029. [2020-10-14 22:18:33,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14029 states. [2020-10-14 22:18:33,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14029 states to 14029 states and 14559 transitions. [2020-10-14 22:18:33,404 INFO L78 Accepts]: Start accepts. Automaton has 14029 states and 14559 transitions. Word has length 1610 [2020-10-14 22:18:33,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:33,405 INFO L479 AbstractCegarLoop]: Abstraction has 14029 states and 14559 transitions. [2020-10-14 22:18:33,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:18:33,406 INFO L276 IsEmpty]: Start isEmpty. Operand 14029 states and 14559 transitions. [2020-10-14 22:18:33,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1737 [2020-10-14 22:18:33,446 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:33,450 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-14 22:18:33,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:18:33,451 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:33,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:33,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1209872651, now seen corresponding path program 1 times [2020-10-14 22:18:33,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:33,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [574194754] [2020-10-14 22:18:33,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:33,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:34,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:34,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:34,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:36,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:38,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:38,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1760 [2020-10-14 22:18:38,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:18:38,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 22:18:38,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:38,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:38,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 22:18:38,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 942 [2020-10-14 22:18:38,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 817 [2020-10-14 22:18:38,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:38,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:38,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:38,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:38,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:38,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:38,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:18:38,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:38,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:38,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:38,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:38,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:38,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:38,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:38,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:38,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:38,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:18:38,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:38,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:18:38,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:38,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:38,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:38,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:38,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:38,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:39,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:18:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:39,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:39,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:39,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:18:39,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:39,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:18:39,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:39,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:39,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:39,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:39,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:39,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:39,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:18:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:39,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:39,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:39,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:18:39,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:39,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:18:39,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:39,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:39,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:39,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:39,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:39,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:39,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 658 [2020-10-14 22:18:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:39,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:39,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:39,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 22:18:39,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:39,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 22:18:39,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:39,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:39,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:39,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:39,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-14 22:18:39,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:39,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 934 [2020-10-14 22:18:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:39,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:39,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:39,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:39,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:18:39,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:18:39,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 439 [2020-10-14 22:18:39,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:39,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:39,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:39,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:39,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-14 22:18:39,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:39,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1207 [2020-10-14 22:18:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:39,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:39,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:40,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:40,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:18:40,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:18:40,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:18:40,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:40,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:40,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:40,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:40,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 22:18:40,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:40,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1278 [2020-10-14 22:18:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:40,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:40,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:40,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:40,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 22:18:40,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:18:40,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-14 22:18:40,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:40,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:40,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:40,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:40,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 249 [2020-10-14 22:18:40,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:40,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1532 [2020-10-14 22:18:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:40,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:40,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:40,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:40,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 22:18:40,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:18:40,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-14 22:18:40,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:40,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:40,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:40,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:40,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-14 22:18:40,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:41,628 INFO L134 CoverageAnalysis]: Checked inductivity of 5098 backedges. 393 proven. 8 refuted. 0 times theorem prover too weak. 4697 trivial. 0 not checked. [2020-10-14 22:18:41,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [574194754] [2020-10-14 22:18:41,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:41,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:18:41,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747995520] [2020-10-14 22:18:41,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:18:41,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:41,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:18:41,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:18:41,630 INFO L87 Difference]: Start difference. First operand 14029 states and 14559 transitions. Second operand 5 states. [2020-10-14 22:18:43,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:43,960 INFO L93 Difference]: Finished difference Result 27719 states and 28775 transitions. [2020-10-14 22:18:43,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:18:43,961 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1736 [2020-10-14 22:18:43,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:43,989 INFO L225 Difference]: With dead ends: 27719 [2020-10-14 22:18:43,989 INFO L226 Difference]: Without dead ends: 14033 [2020-10-14 22:18:44,008 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 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 22:18:44,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14033 states. [2020-10-14 22:18:44,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14033 to 14029. [2020-10-14 22:18:44,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14029 states. [2020-10-14 22:18:44,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14029 states to 14029 states and 14531 transitions. [2020-10-14 22:18:44,193 INFO L78 Accepts]: Start accepts. Automaton has 14029 states and 14531 transitions. Word has length 1736 [2020-10-14 22:18:44,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:44,195 INFO L479 AbstractCegarLoop]: Abstraction has 14029 states and 14531 transitions. [2020-10-14 22:18:44,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:18:44,195 INFO L276 IsEmpty]: Start isEmpty. Operand 14029 states and 14531 transitions. [2020-10-14 22:18:44,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1910 [2020-10-14 22:18:44,236 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:44,237 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-14 22:18:44,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 22:18:44,237 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:44,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:44,238 INFO L82 PathProgramCache]: Analyzing trace with hash 697594998, now seen corresponding path program 1 times [2020-10-14 22:18:44,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:44,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343755705] [2020-10-14 22:18:44,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:44,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:44,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:45,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:45,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:46,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:47,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:49,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:49,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1935 [2020-10-14 22:18:49,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:18:49,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-14 22:18:49,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:49,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:49,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:49,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 942 [2020-10-14 22:18:49,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:18:49,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:49,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:49,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:49,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:49,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:49,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:49,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:18:49,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:49,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:49,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:49,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:49,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:49,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:49,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:49,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:49,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:49,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:18:49,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:49,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:18:49,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:49,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:49,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:49,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:49,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:49,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:49,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:18:49,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:49,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:49,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:49,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:18:49,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:49,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-14 22:18:49,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:49,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:49,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:49,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:49,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:49,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:50,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:18:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:50,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:50,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:50,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:18:50,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:50,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:18:50,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:50,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:50,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:50,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:50,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:50,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:50,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 658 [2020-10-14 22:18:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:50,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:50,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:50,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 22:18:50,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:50,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 22:18:50,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:50,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:50,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:50,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:50,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-14 22:18:50,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:50,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 934 [2020-10-14 22:18:50,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:50,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:50,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:50,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:18:50,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:50,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-14 22:18:50,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:50,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:50,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:50,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:50,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:18:50,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:50,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1207 [2020-10-14 22:18:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:50,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:50,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:50,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:18:50,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:50,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:18:50,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:50,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:50,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:50,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:18:50,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:50,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:50,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1278 [2020-10-14 22:18:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:50,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:50,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:50,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 22:18:50,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:50,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 22:18:50,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:50,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:50,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:50,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 22:18:50,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:50,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:50,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1532 [2020-10-14 22:18:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:51,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:51,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:51,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 22:18:51,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:51,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:18:51,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:51,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:51,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:51,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-14 22:18:51,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:51,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:51,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1697 [2020-10-14 22:18:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:51,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:51,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:51,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 22:18:51,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:51,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:18:51,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:51,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:51,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:51,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 22:18:51,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:51,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:53,074 INFO L134 CoverageAnalysis]: Checked inductivity of 6401 backedges. 1350 proven. 653 refuted. 0 times theorem prover too weak. 4398 trivial. 0 not checked. [2020-10-14 22:18:53,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [343755705] [2020-10-14 22:18:53,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:53,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:53,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262584185] [2020-10-14 22:18:53,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:53,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:53,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:53,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:53,077 INFO L87 Difference]: Start difference. First operand 14029 states and 14531 transitions. Second operand 7 states. [2020-10-14 22:18:56,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:56,280 INFO L93 Difference]: Finished difference Result 27725 states and 28731 transitions. [2020-10-14 22:18:56,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:18:56,281 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1909 [2020-10-14 22:18:56,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:56,313 INFO L225 Difference]: With dead ends: 27725 [2020-10-14 22:18:56,313 INFO L226 Difference]: Without dead ends: 14039 [2020-10-14 22:18:56,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 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 22:18:56,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14039 states. [2020-10-14 22:18:56,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14039 to 14029. [2020-10-14 22:18:56,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14029 states. [2020-10-14 22:18:56,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14029 states to 14029 states and 14527 transitions. [2020-10-14 22:18:56,534 INFO L78 Accepts]: Start accepts. Automaton has 14029 states and 14527 transitions. Word has length 1909 [2020-10-14 22:18:56,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:56,535 INFO L479 AbstractCegarLoop]: Abstraction has 14029 states and 14527 transitions. [2020-10-14 22:18:56,535 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:18:56,536 INFO L276 IsEmpty]: Start isEmpty. Operand 14029 states and 14527 transitions. [2020-10-14 22:18:56,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1949 [2020-10-14 22:18:56,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:56,587 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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, 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, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 22:18:56,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 22:18:56,588 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:56,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:56,588 INFO L82 PathProgramCache]: Analyzing trace with hash -329583645, now seen corresponding path program 1 times [2020-10-14 22:18:56,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:56,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [47419249] [2020-10-14 22:18:56,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:57,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:57,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:57,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:57,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:58,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:00,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:01,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:01,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1978 [2020-10-14 22:19:01,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 22:19:01,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5099 [2020-10-14 22:19:01,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:01,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:01,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:01,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 733 [2020-10-14 22:19:01,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 22:19:01,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:02,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:02,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:02,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:02,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:02,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:02,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:19:02,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:02,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:02,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:02,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:02,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:02,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:02,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:02,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:02,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:02,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:19:02,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:02,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:19:02,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:02,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:02,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:02,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:02,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:02,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:02,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:19:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:02,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:02,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:02,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:19:02,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:02,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 22:19:02,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:02,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:02,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:02,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:02,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:02,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:02,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:19:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:02,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:02,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:02,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:19:02,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:02,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:19:02,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:02,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:02,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:02,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:02,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:02,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:02,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:19:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:02,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:02,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:02,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:19:02,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:02,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:19:02,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:02,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:02,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:02,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:02,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:02,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:02,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-14 22:19:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:02,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:02,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:02,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:19:02,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:02,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:19:02,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:02,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:02,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:02,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:02,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:19:02,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:02,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-14 22:19:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:02,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:02,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:02,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:19:02,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:02,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 345 [2020-10-14 22:19:02,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:02,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:02,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:02,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:02,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 22:19:02,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:03,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 973 [2020-10-14 22:19:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:03,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:03,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:03,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:19:03,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:03,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 22:19:03,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:03,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:03,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:03,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:19:03,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:03,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:03,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1246 [2020-10-14 22:19:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:03,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:03,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:03,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:19:03,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:03,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:19:03,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:03,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:03,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:03,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:19:03,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:03,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:03,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1317 [2020-10-14 22:19:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:03,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:03,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:03,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 22:19:03,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:03,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 22:19:03,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:03,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:03,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:03,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 22:19:03,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:03,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:03,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1571 [2020-10-14 22:19:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:03,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:03,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:03,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 22:19:03,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:03,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:19:03,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:03,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:03,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:03,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-14 22:19:03,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:03,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:03,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1736 [2020-10-14 22:19:03,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:03,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:03,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:03,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 22:19:03,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:03,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 22:19:03,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:03,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:03,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:03,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 22:19:03,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:03,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:05,531 INFO L134 CoverageAnalysis]: Checked inductivity of 7562 backedges. 1260 proven. 896 refuted. 0 times theorem prover too weak. 5406 trivial. 0 not checked. [2020-10-14 22:19:05,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [47419249] [2020-10-14 22:19:05,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:05,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:19:05,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293437868] [2020-10-14 22:19:05,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:05,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:05,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:05,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:05,534 INFO L87 Difference]: Start difference. First operand 14029 states and 14527 transitions. Second operand 7 states. [2020-10-14 22:19:08,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:08,802 INFO L93 Difference]: Finished difference Result 28060 states and 29059 transitions. [2020-10-14 22:19:08,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:19:08,803 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1948 [2020-10-14 22:19:08,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:08,823 INFO L225 Difference]: With dead ends: 28060 [2020-10-14 22:19:08,823 INFO L226 Difference]: Without dead ends: 14374 [2020-10-14 22:19:08,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 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 22:19:08,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14374 states. [2020-10-14 22:19:08,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14374 to 14366. [2020-10-14 22:19:08,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14366 states. [2020-10-14 22:19:09,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14366 states to 14366 states and 14867 transitions. [2020-10-14 22:19:09,000 INFO L78 Accepts]: Start accepts. Automaton has 14366 states and 14867 transitions. Word has length 1948 [2020-10-14 22:19:09,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:09,002 INFO L479 AbstractCegarLoop]: Abstraction has 14366 states and 14867 transitions. [2020-10-14 22:19:09,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:19:09,002 INFO L276 IsEmpty]: Start isEmpty. Operand 14366 states and 14867 transitions. [2020-10-14 22:19:09,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1988 [2020-10-14 22:19:09,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:09,047 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 22:19:09,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 22:19:09,047 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:09,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:09,048 INFO L82 PathProgramCache]: Analyzing trace with hash 637123162, now seen corresponding path program 1 times [2020-10-14 22:19:09,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:09,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [133548025] [2020-10-14 22:19:09,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:09,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:09,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:09,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:09,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:10,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:14,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:14,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2017 [2020-10-14 22:19:14,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:19:14,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-10-14 22:19:14,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:14,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:14,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:14,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1024 [2020-10-14 22:19:14,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:19:14,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:14,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:14,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:14,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:14,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:14,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:14,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:19:14,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:14,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:14,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:14,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:14,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:14,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:14,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:14,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:14,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:14,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:19:14,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:14,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:19:14,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:14,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:14,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:14,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:14,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:14,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:14,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:19:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:14,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:14,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:14,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:19:14,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:14,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:19:14,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:14,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:14,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:14,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:14,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:14,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:14,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:19:14,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:14,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:14,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:14,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:19:14,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:14,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:19:14,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:14,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:14,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:14,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:14,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:14,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:14,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:19:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:14,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:14,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:14,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:19:14,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:14,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:19:14,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:14,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:14,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:14,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:14,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:14,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:14,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-14 22:19:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:14,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:14,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:14,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:19:14,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:14,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:19:14,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:14,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:14,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:14,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:14,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:14,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:14,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 870 [2020-10-14 22:19:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:14,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:14,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:14,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:19:14,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:14,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 22:19:14,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:14,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:14,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:14,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:14,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 22:19:14,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:14,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2020-10-14 22:19:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:14,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:15,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:15,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:19:15,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:15,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-14 22:19:15,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:15,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:15,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:15,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:15,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:19:15,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:15,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1285 [2020-10-14 22:19:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:15,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:15,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:15,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:19:15,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:15,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:19:15,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:15,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:15,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:15,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:19:15,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:15,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:15,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1356 [2020-10-14 22:19:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:15,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:15,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:15,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 22:19:15,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:15,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 22:19:15,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:15,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:15,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:15,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 22:19:15,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:15,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:15,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1610 [2020-10-14 22:19:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:15,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:15,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:15,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 22:19:15,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:15,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 22:19:15,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:15,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:15,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:15,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-14 22:19:15,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:15,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:15,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1775 [2020-10-14 22:19:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:15,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:15,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:15,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 22:19:15,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:15,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:19:15,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:15,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:15,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:15,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 22:19:15,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:15,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:17,866 INFO L134 CoverageAnalysis]: Checked inductivity of 7781 backedges. 1547 proven. 653 refuted. 0 times theorem prover too weak. 5581 trivial. 0 not checked. [2020-10-14 22:19:17,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [133548025] [2020-10-14 22:19:17,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:17,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:19:17,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577610369] [2020-10-14 22:19:17,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:17,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:17,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:17,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:17,869 INFO L87 Difference]: Start difference. First operand 14366 states and 14867 transitions. Second operand 7 states. [2020-10-14 22:19:21,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:21,013 INFO L93 Difference]: Finished difference Result 28399 states and 29403 transitions. [2020-10-14 22:19:21,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:19:21,014 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1987 [2020-10-14 22:19:21,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:21,038 INFO L225 Difference]: With dead ends: 28399 [2020-10-14 22:19:21,038 INFO L226 Difference]: Without dead ends: 14376 [2020-10-14 22:19:21,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 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 22:19:21,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14376 states. [2020-10-14 22:19:21,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14376 to 14025. [2020-10-14 22:19:21,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14025 states. [2020-10-14 22:19:21,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14025 states to 14025 states and 14485 transitions. [2020-10-14 22:19:21,176 INFO L78 Accepts]: Start accepts. Automaton has 14025 states and 14485 transitions. Word has length 1987 [2020-10-14 22:19:21,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:21,177 INFO L479 AbstractCegarLoop]: Abstraction has 14025 states and 14485 transitions. [2020-10-14 22:19:21,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:19:21,177 INFO L276 IsEmpty]: Start isEmpty. Operand 14025 states and 14485 transitions. [2020-10-14 22:19:21,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2062 [2020-10-14 22:19:21,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:21,216 INFO L422 BasicCegarLoop]: trace histogram [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, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 22:19:21,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 22:19:21,217 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:21,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:21,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1516609090, now seen corresponding path program 1 times [2020-10-14 22:19:21,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:21,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482390392] [2020-10-14 22:19:21,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:21,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:21,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:22,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:22,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:23,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:26,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:26,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2093 [2020-10-14 22:19:26,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:19:26,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-14 22:19:26,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:26,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:26,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:26,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 616 [2020-10-14 22:19:26,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 22:19:26,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:26,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:26,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:26,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:26,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:26,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:26,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:19:26,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:26,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:26,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:26,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:26,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:26,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:26,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:26,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:26,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:26,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:19:26,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:26,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 22:19:26,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:26,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:26,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:26,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:26,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:26,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:26,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:19:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:26,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:26,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:26,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:19:26,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:26,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 22:19:26,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:26,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:26,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:26,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:26,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:26,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:26,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:19:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:26,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:26,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:26,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:19:26,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:26,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:19:26,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:26,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:26,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:27,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:27,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:27,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:27,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:19:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:27,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:27,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:27,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:19:27,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:27,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:19:27,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:27,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:27,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:27,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:27,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 22:19:27,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:27,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-14 22:19:27,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:27,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:27,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:27,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:19:27,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:27,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-14 22:19:27,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:27,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:27,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:27,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:27,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 22:19:27,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:27,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 870 [2020-10-14 22:19:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:27,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:27,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:27,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:19:27,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:27,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:19:27,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:27,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:27,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:27,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:19:27,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:27,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:27,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2020-10-14 22:19:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:27,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:27,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:27,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:19:27,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:27,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:19:27,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:27,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:27,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:27,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 22:19:27,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:27,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:27,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1086 [2020-10-14 22:19:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:27,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:28,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:28,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:19:28,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:28,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-10-14 22:19:28,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:28,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:28,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:28,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:19:28,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:28,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:28,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1359 [2020-10-14 22:19:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:28,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:28,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:28,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:19:28,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:28,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:19:28,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:28,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:28,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:28,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:19:28,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:28,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:28,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1430 [2020-10-14 22:19:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:28,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:28,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:28,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 22:19:28,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:28,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:19:28,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:28,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:28,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:28,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 22:19:28,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:28,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:28,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1684 [2020-10-14 22:19:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:28,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:28,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:28,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 22:19:28,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:28,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:19:28,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:28,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:28,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:28,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-14 22:19:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:28,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:28,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1849 [2020-10-14 22:19:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:28,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:28,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:28,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 22:19:28,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:28,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:19:28,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:28,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:28,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:28,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 22:19:28,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:28,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:31,003 INFO L134 CoverageAnalysis]: Checked inductivity of 8628 backedges. 1195 proven. 1122 refuted. 0 times theorem prover too weak. 6311 trivial. 0 not checked. [2020-10-14 22:19:31,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [482390392] [2020-10-14 22:19:31,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:31,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:19:31,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574934855] [2020-10-14 22:19:31,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:31,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:31,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:31,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:31,007 INFO L87 Difference]: Start difference. First operand 14025 states and 14485 transitions. Second operand 7 states. [2020-10-14 22:19:34,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:34,430 INFO L93 Difference]: Finished difference Result 28734 states and 29677 transitions. [2020-10-14 22:19:34,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:19:34,432 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2061 [2020-10-14 22:19:34,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:34,460 INFO L225 Difference]: With dead ends: 28734 [2020-10-14 22:19:34,460 INFO L226 Difference]: Without dead ends: 14713 [2020-10-14 22:19:34,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 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 22:19:34,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14713 states. [2020-10-14 22:19:34,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14713 to 14699. [2020-10-14 22:19:34,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14699 states. [2020-10-14 22:19:34,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14699 states to 14699 states and 15171 transitions. [2020-10-14 22:19:34,621 INFO L78 Accepts]: Start accepts. Automaton has 14699 states and 15171 transitions. Word has length 2061 [2020-10-14 22:19:34,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:34,623 INFO L479 AbstractCegarLoop]: Abstraction has 14699 states and 15171 transitions. [2020-10-14 22:19:34,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:19:34,623 INFO L276 IsEmpty]: Start isEmpty. Operand 14699 states and 15171 transitions. [2020-10-14 22:19:34,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2181 [2020-10-14 22:19:34,676 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:34,677 INFO L422 BasicCegarLoop]: trace histogram [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, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 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, 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, 7, 7, 7, 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, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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 22:19:34,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 22:19:34,678 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:34,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:34,679 INFO L82 PathProgramCache]: Analyzing trace with hash 2110182663, now seen corresponding path program 1 times [2020-10-14 22:19:34,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:34,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [206778423] [2020-10-14 22:19:34,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:35,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:35,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:35,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:36,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:36,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:38,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:39,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:39,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2212 [2020-10-14 22:19:39,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 22:19:39,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-14 22:19:39,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:39,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:39,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:39,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 735 [2020-10-14 22:19:39,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 22:19:39,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:40,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:40,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:40,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:40,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:40,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:40,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:19:40,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:40,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:40,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:40,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:40,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:40,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:40,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:40,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:40,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:40,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:19:40,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:40,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:19:40,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:40,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:40,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:40,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:40,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:40,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:40,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:19:40,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:40,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:40,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:40,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:19:40,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:40,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 22:19:40,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:40,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:40,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:40,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:40,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:40,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:40,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:19:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:40,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:40,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:40,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:19:40,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:40,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:19:40,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:40,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:40,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:40,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:40,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:40,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:40,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 658 [2020-10-14 22:19:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:40,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:40,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:40,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:19:40,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:40,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:19:40,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:40,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:40,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:40,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:40,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 22:19:40,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:40,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 727 [2020-10-14 22:19:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:40,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:40,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:40,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:19:40,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:40,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-14 22:19:40,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:40,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:40,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:40,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:40,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 22:19:40,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:41,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 989 [2020-10-14 22:19:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:41,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:41,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:41,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:19:41,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:41,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:19:41,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:41,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:41,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:41,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:19:41,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:41,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:41,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1131 [2020-10-14 22:19:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:41,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:41,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:41,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:19:41,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:41,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:19:41,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:41,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:41,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:41,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 22:19:41,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:41,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:41,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1205 [2020-10-14 22:19:41,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:41,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:41,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:41,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:19:41,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:41,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 22:19:41,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:41,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:41,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:41,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:19:41,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:41,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:41,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1478 [2020-10-14 22:19:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:41,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:41,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:41,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:19:41,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:41,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:19:41,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:41,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:41,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:41,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:19:41,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:41,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:41,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1549 [2020-10-14 22:19:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:41,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:41,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:41,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 22:19:41,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:41,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 22:19:41,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:41,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:41,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:41,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 22:19:41,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:41,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:41,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1803 [2020-10-14 22:19:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:41,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:41,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:41,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 22:19:41,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:41,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:19:41,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:41,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:41,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:41,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-14 22:19:41,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:41,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:41,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1968 [2020-10-14 22:19:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:41,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:41,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:41,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 22:19:41,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:41,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:19:41,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:41,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:41,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:41,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 22:19:41,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:41,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:44,628 INFO L134 CoverageAnalysis]: Checked inductivity of 9213 backedges. 1314 proven. 1122 refuted. 0 times theorem prover too weak. 6777 trivial. 0 not checked. [2020-10-14 22:19:44,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [206778423] [2020-10-14 22:19:44,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:44,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:19:44,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414796517] [2020-10-14 22:19:44,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:44,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:44,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:44,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:44,630 INFO L87 Difference]: Start difference. First operand 14699 states and 15171 transitions. Second operand 7 states.