/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_label43.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:19:22,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:19:22,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:19:22,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:19:22,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:19:22,425 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:19:22,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:19:22,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:19:22,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:19:22,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:19:22,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:19:22,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:19:22,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:19:22,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:19:22,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:19:22,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:19:22,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:19:22,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:19:22,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:19:22,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:19:22,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:19:22,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:19:22,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:19:22,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:19:22,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:19:22,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:19:22,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:19:22,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:19:22,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:19:22,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:19:22,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:19:22,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:19:22,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:19:22,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:19:22,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:19:22,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:19:22,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:19:22,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:19:22,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:19:22,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:19:22,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:19:22,483 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 22:19:22,529 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:19:22,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:19:22,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:19:22,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:19:22,532 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:19:22,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:19:22,533 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:19:22,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:19:22,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:19:22,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:19:22,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:19:22,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:19:22,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:19:22,536 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:19:22,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:19:22,536 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:19:22,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:19:22,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:19:22,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:19:22,537 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:19:22,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:19:22,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:19:22,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:19:22,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:19:22,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:19:22,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:19:22,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:19:22,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:19:22,539 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:19:22,539 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 22:19:22,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:19:22,886 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:19:22,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:19:22,894 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:19:22,895 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:19:22,895 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label43.c [2020-10-14 22:19:22,962 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f89115ae8/1db1f4b5b7964d8ca3a52f8caf6eb6f8/FLAG739d4147c [2020-10-14 22:19:23,627 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:19:23,628 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label43.c [2020-10-14 22:19:23,650 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f89115ae8/1db1f4b5b7964d8ca3a52f8caf6eb6f8/FLAG739d4147c [2020-10-14 22:19:23,847 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f89115ae8/1db1f4b5b7964d8ca3a52f8caf6eb6f8 [2020-10-14 22:19:23,855 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:19:23,856 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:19:23,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:19:23,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:19:23,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:19:23,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:19:23" (1/1) ... [2020-10-14 22:19:23,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d5d5e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:23, skipping insertion in model container [2020-10-14 22:19:23,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:19:23" (1/1) ... [2020-10-14 22:19:23,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:19:23,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:19:24,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:19:24,786 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:19:25,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:19:25,421 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:19:25,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:25 WrapperNode [2020-10-14 22:19:25,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:19:25,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:19:25,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:19:25,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:19:25,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:25" (1/1) ... [2020-10-14 22:19:25,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:25" (1/1) ... [2020-10-14 22:19:25,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:25" (1/1) ... [2020-10-14 22:19:25,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:25" (1/1) ... [2020-10-14 22:19:25,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:25" (1/1) ... [2020-10-14 22:19:25,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:25" (1/1) ... [2020-10-14 22:19:25,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:25" (1/1) ... [2020-10-14 22:19:25,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:19:25,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:19:25,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:19:25,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:19:25,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:25" (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 22:19:25,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:19:25,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:19:25,716 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:19:25,717 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:19:25,717 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:19:25,717 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:19:25,717 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:19:25,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:19:25,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:19:25,718 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:19:25,718 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:19:25,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:19:25,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:19:27,999 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:19:27,999 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:19:28,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:19:28 BoogieIcfgContainer [2020-10-14 22:19:28,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:19:28,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:19:28,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:19:28,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:19:28,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:19:23" (1/3) ... [2020-10-14 22:19:28,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@597a18ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:19:28, skipping insertion in model container [2020-10-14 22:19:28,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:25" (2/3) ... [2020-10-14 22:19:28,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@597a18ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:19:28, skipping insertion in model container [2020-10-14 22:19:28,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:19:28" (3/3) ... [2020-10-14 22:19:28,034 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label43.c [2020-10-14 22:19:28,046 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:19:28,061 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:19:28,080 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:19:28,120 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:19:28,121 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:19:28,121 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:19:28,121 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:19:28,121 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:19:28,122 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:19:28,122 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:19:28,122 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:19:28,161 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 22:19:28,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-14 22:19:28,172 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:28,174 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:19:28,174 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:28,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:28,180 INFO L82 PathProgramCache]: Analyzing trace with hash 522953842, now seen corresponding path program 1 times [2020-10-14 22:19:28,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:28,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1664571341] [2020-10-14 22:19:28,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:28,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:28,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:28,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 22:19:28,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:28,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-10-14 22:19:28,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:28,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:28,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:19:28,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:19:28,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 22:19:28,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:19:28,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:28,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:28,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:28,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:28,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:28,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 22:19:28,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:28,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:28,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:28,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:28,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:19:28,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:28,868 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 22:19:28,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1664571341] [2020-10-14 22:19:28,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:19:28,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:19:28,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768702044] [2020-10-14 22:19:28,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:19:28,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:28,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:19:28,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:19:28,894 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 22:19:32,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:32,241 INFO L93 Difference]: Finished difference Result 1169 states and 2165 transitions. [2020-10-14 22:19:32,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:19:32,243 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-14 22:19:32,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:32,264 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 22:19:32,265 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 22:19:32,275 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 22:19:32,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 22:19:32,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 689. [2020-10-14 22:19:32,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-14 22:19:32,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1077 transitions. [2020-10-14 22:19:32,412 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1077 transitions. Word has length 15 [2020-10-14 22:19:32,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:32,413 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 1077 transitions. [2020-10-14 22:19:32,413 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:19:32,413 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1077 transitions. [2020-10-14 22:19:32,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-14 22:19:32,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:32,422 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:19:32,423 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:19:32,423 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:32,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:32,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1084494261, now seen corresponding path program 1 times [2020-10-14 22:19:32,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:32,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1300045752] [2020-10-14 22:19:32,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:32,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:32,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:33,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:33,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-14 22:19:33,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:19:33,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 838 [2020-10-14 22:19:33,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:33,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:33,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:19:33,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:19:33,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 22:19:33,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:19:33,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:33,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:33,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:33,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:33,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:33,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:19:33,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:33,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:33,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:33,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:33,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:19:33,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:33,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:33,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:33,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:33,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:33,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 22:19:33,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:33,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-14 22:19:33,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:33,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:33,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:33,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:33,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 22:19:33,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-14 22:19:33,799 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:19:33,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1300045752] [2020-10-14 22:19:33,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:19:33,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:19:33,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007748052] [2020-10-14 22:19:33,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:33,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:33,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:33,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:33,805 INFO L87 Difference]: Start difference. First operand 689 states and 1077 transitions. Second operand 7 states. [2020-10-14 22:19:37,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:37,567 INFO L93 Difference]: Finished difference Result 1763 states and 2730 transitions. [2020-10-14 22:19:37,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:19:37,568 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-14 22:19:37,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:37,581 INFO L225 Difference]: With dead ends: 1763 [2020-10-14 22:19:37,581 INFO L226 Difference]: Without dead ends: 1080 [2020-10-14 22:19:37,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:19:37,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2020-10-14 22:19:37,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1041. [2020-10-14 22:19:37,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1041 states. [2020-10-14 22:19:37,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1494 transitions. [2020-10-14 22:19:37,686 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1494 transitions. Word has length 90 [2020-10-14 22:19:37,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:37,687 INFO L479 AbstractCegarLoop]: Abstraction has 1041 states and 1494 transitions. [2020-10-14 22:19:37,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:19:37,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1494 transitions. [2020-10-14 22:19:37,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-14 22:19:37,690 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:37,691 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:19:37,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:19:37,691 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:37,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:37,692 INFO L82 PathProgramCache]: Analyzing trace with hash 416621950, now seen corresponding path program 1 times [2020-10-14 22:19:37,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:37,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2033859817] [2020-10-14 22:19:37,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:37,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:37,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:38,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:38,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:19:38,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:19:38,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 617 [2020-10-14 22:19:38,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:38,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:38,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:19:38,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:19:38,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 22:19:38,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:38,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:38,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:38,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:38,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:38,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:38,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:19:38,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:38,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:38,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:38,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:38,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:19:38,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:38,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:38,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:38,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:38,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:19:38,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:38,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-14 22:19:38,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:38,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:38,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:38,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:38,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 22:19:38,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:38,665 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:19:38,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2033859817] [2020-10-14 22:19:38,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:19:38,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:19:38,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330094161] [2020-10-14 22:19:38,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:38,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:38,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:38,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:38,668 INFO L87 Difference]: Start difference. First operand 1041 states and 1494 transitions. Second operand 7 states. [2020-10-14 22:19:42,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:42,602 INFO L93 Difference]: Finished difference Result 3168 states and 4637 transitions. [2020-10-14 22:19:42,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:19:42,604 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2020-10-14 22:19:42,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:42,620 INFO L225 Difference]: With dead ends: 3168 [2020-10-14 22:19:42,620 INFO L226 Difference]: Without dead ends: 2133 [2020-10-14 22:19:42,625 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 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 22:19:42,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2133 states. [2020-10-14 22:19:42,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2133 to 2091. [2020-10-14 22:19:42,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2091 states. [2020-10-14 22:19:42,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 2712 transitions. [2020-10-14 22:19:42,698 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 2712 transitions. Word has length 91 [2020-10-14 22:19:42,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:42,698 INFO L479 AbstractCegarLoop]: Abstraction has 2091 states and 2712 transitions. [2020-10-14 22:19:42,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:19:42,699 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 2712 transitions. [2020-10-14 22:19:42,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-14 22:19:42,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:42,714 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 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 22:19:42,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:19:42,715 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:42,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:42,716 INFO L82 PathProgramCache]: Analyzing trace with hash -996746961, now seen corresponding path program 1 times [2020-10-14 22:19:42,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:42,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [896100381] [2020-10-14 22:19:42,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:42,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:42,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:43,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:43,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:43,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:45,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:45,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-14 22:19:45,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:19:45,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2265 [2020-10-14 22:19:45,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:45,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:45,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:19:45,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:19:45,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-14 22:19:45,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:45,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:45,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:45,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:45,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:45,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:45,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:19:45,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:45,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:45,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:45,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:45,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:19:45,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:45,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:45,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:45,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:45,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:45,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:19:45,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:19:45,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-14 22:19:45,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:45,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:45,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:45,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:45,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:19:45,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:45,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:19:45,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:45,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:45,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:45,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:19:45,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:45,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 22:19:45,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:45,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:45,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:45,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:45,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 22:19:45,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:45,564 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 22:19:45,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [896100381] [2020-10-14 22:19:45,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:45,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:19:45,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400562479] [2020-10-14 22:19:45,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:45,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:45,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:45,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:45,571 INFO L87 Difference]: Start difference. First operand 2091 states and 2712 transitions. Second operand 7 states. [2020-10-14 22:19:49,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:49,507 INFO L93 Difference]: Finished difference Result 4917 states and 6617 transitions. [2020-10-14 22:19:49,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:19:49,509 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2020-10-14 22:19:49,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:49,523 INFO L225 Difference]: With dead ends: 4917 [2020-10-14 22:19:49,524 INFO L226 Difference]: Without dead ends: 2832 [2020-10-14 22:19:49,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:19:49,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2832 states. [2020-10-14 22:19:49,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2832 to 2437. [2020-10-14 22:19:49,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2437 states. [2020-10-14 22:19:49,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 3190 transitions. [2020-10-14 22:19:49,594 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 3190 transitions. Word has length 178 [2020-10-14 22:19:49,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:49,595 INFO L479 AbstractCegarLoop]: Abstraction has 2437 states and 3190 transitions. [2020-10-14 22:19:49,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:19:49,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 3190 transitions. [2020-10-14 22:19:49,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2020-10-14 22:19:49,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:49,602 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 22:19:49,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:19:49,603 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:49,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:49,603 INFO L82 PathProgramCache]: Analyzing trace with hash 470113443, now seen corresponding path program 1 times [2020-10-14 22:19:49,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:49,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068247026] [2020-10-14 22:19:49,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:49,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:49,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:50,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:50,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:50,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:53,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:53,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 370 [2020-10-14 22:19:53,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:19:53,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3879 [2020-10-14 22:19:53,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:53,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:53,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:19:53,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 22:19:53,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 22:19:53,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:53,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:53,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:53,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:53,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:53,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:53,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:19:53,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:53,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:53,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:53,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:53,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:53,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:53,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:53,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:53,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:53,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:53,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:19:53,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:53,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 22:19:53,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:53,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:53,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:53,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:53,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:19:53,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:53,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:19:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:53,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:53,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:54,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:54,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:19:54,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:19:54,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-10-14 22:19:54,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:54,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:54,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:54,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:54,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 22:19:54,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:54,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-14 22:19:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:54,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:54,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:54,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:19:54,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:54,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 22:19:54,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:54,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:54,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:54,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:54,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:19:54,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:54,489 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 200 proven. 6 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-14 22:19:54,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068247026] [2020-10-14 22:19:54,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:54,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:19:54,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133082288] [2020-10-14 22:19:54,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:54,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:54,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:54,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:54,492 INFO L87 Difference]: Start difference. First operand 2437 states and 3190 transitions. Second operand 7 states. [2020-10-14 22:19:58,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:58,805 INFO L93 Difference]: Finished difference Result 6297 states and 8434 transitions. [2020-10-14 22:19:58,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:19:58,808 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 356 [2020-10-14 22:19:58,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:58,823 INFO L225 Difference]: With dead ends: 6297 [2020-10-14 22:19:58,823 INFO L226 Difference]: Without dead ends: 3151 [2020-10-14 22:19:58,830 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:19:58,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3151 states. [2020-10-14 22:19:58,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3151 to 3128. [2020-10-14 22:19:58,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3128 states. [2020-10-14 22:19:58,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 3450 transitions. [2020-10-14 22:19:58,898 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 3450 transitions. Word has length 356 [2020-10-14 22:19:58,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:58,898 INFO L479 AbstractCegarLoop]: Abstraction has 3128 states and 3450 transitions. [2020-10-14 22:19:58,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:19:58,899 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 3450 transitions. [2020-10-14 22:19:58,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2020-10-14 22:19:58,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:58,912 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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 22:19:58,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:19:58,912 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:58,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:58,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1160841862, now seen corresponding path program 1 times [2020-10-14 22:19:58,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:58,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [899192390] [2020-10-14 22:19:58,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:58,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:59,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:59,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:01,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:03,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:03,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 559 [2020-10-14 22:20:03,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:20:03,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 22:20:03,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:03,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:03,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:03,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 358 [2020-10-14 22:20:03,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 22:20:03,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:04,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:04,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:04,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:04,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:04,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:04,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:20:04,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:04,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:04,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:04,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:04,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:04,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:04,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:04,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:04,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:04,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:04,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:20:04,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:04,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 22:20:04,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:04,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:04,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:04,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:04,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:04,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:04,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 22:20:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:04,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:04,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:04,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:20:04,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:04,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:20:04,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:04,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:04,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:04,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:04,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:04,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:04,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-14 22:20:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:04,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:04,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:04,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:20:04,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:04,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 22:20:04,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:04,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:04,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:04,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:04,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:20:04,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:20:04,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 22:20:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:04,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:04,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:04,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:20:04,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:04,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-14 22:20:04,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:04,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:04,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:04,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:04,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 22:20:04,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:04,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-14 22:20:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:04,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:04,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:04,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:20:04,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:04,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:20:04,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:04,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:04,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:04,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:20:04,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:04,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:05,105 INFO L134 CoverageAnalysis]: Checked inductivity of 963 backedges. 373 proven. 71 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2020-10-14 22:20:05,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [899192390] [2020-10-14 22:20:05,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:05,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:20:05,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432926816] [2020-10-14 22:20:05,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:05,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:05,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:05,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:05,109 INFO L87 Difference]: Start difference. First operand 3128 states and 3450 transitions. Second operand 7 states. [2020-10-14 22:20:07,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:07,740 INFO L93 Difference]: Finished difference Result 7980 states and 8949 transitions. [2020-10-14 22:20:07,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:20:07,741 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 541 [2020-10-14 22:20:07,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:07,761 INFO L225 Difference]: With dead ends: 7980 [2020-10-14 22:20:07,761 INFO L226 Difference]: Without dead ends: 4858 [2020-10-14 22:20:07,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 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 22:20:07,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4858 states. [2020-10-14 22:20:07,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4858 to 4842. [2020-10-14 22:20:07,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4842 states. [2020-10-14 22:20:07,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4842 states to 4842 states and 5401 transitions. [2020-10-14 22:20:07,869 INFO L78 Accepts]: Start accepts. Automaton has 4842 states and 5401 transitions. Word has length 541 [2020-10-14 22:20:07,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:07,870 INFO L479 AbstractCegarLoop]: Abstraction has 4842 states and 5401 transitions. [2020-10-14 22:20:07,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:07,870 INFO L276 IsEmpty]: Start isEmpty. Operand 4842 states and 5401 transitions. [2020-10-14 22:20:07,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 722 [2020-10-14 22:20:07,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:07,897 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:20:07,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:20:07,898 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:07,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:07,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1923825766, now seen corresponding path program 1 times [2020-10-14 22:20:07,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:07,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708617461] [2020-10-14 22:20:07,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:08,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:08,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:08,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:08,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:13,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:13,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 737 [2020-10-14 22:20:13,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:20:13,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-14 22:20:13,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:13,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:13,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:20:13,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:20:13,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 22:20:13,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:13,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:13,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:13,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:13,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:13,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:13,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:20:13,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:13,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:13,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:13,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:13,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:20:13,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:13,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:13,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:13,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:13,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:20:13,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:13,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336 [2020-10-14 22:20:13,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:13,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:13,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:13,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:13,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:20:13,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:13,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 22:20:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:13,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:13,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:13,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:20:13,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:13,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:20:13,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:13,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:13,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:13,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:20:13,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:13,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:13,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 22:20:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:13,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:13,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:13,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:20:13,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:13,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:20:13,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:13,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:13,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:13,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:20:13,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:13,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:13,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2020-10-14 22:20:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:13,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:13,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:13,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:20:13,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:13,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 22:20:13,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:13,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:13,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:13,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:20:13,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:13,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:14,454 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 32 proven. 418 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2020-10-14 22:20:14,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708617461] [2020-10-14 22:20:14,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:14,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:20:14,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7506411] [2020-10-14 22:20:14,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:14,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:14,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:14,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:14,457 INFO L87 Difference]: Start difference. First operand 4842 states and 5401 transitions. Second operand 7 states. [2020-10-14 22:20:17,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:17,111 INFO L93 Difference]: Finished difference Result 10399 states and 11598 transitions. [2020-10-14 22:20:17,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:20:17,113 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 721 [2020-10-14 22:20:17,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:17,134 INFO L225 Difference]: With dead ends: 10399 [2020-10-14 22:20:17,134 INFO L226 Difference]: Without dead ends: 5563 [2020-10-14 22:20:17,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:20:17,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5563 states. [2020-10-14 22:20:17,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5563 to 5529. [2020-10-14 22:20:17,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5529 states. [2020-10-14 22:20:17,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5529 states to 5529 states and 6113 transitions. [2020-10-14 22:20:17,258 INFO L78 Accepts]: Start accepts. Automaton has 5529 states and 6113 transitions. Word has length 721 [2020-10-14 22:20:17,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:17,259 INFO L479 AbstractCegarLoop]: Abstraction has 5529 states and 6113 transitions. [2020-10-14 22:20:17,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:17,259 INFO L276 IsEmpty]: Start isEmpty. Operand 5529 states and 6113 transitions. [2020-10-14 22:20:17,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 969 [2020-10-14 22:20:17,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:17,278 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:20:17,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:20:17,279 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:17,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:17,279 INFO L82 PathProgramCache]: Analyzing trace with hash -135920745, now seen corresponding path program 1 times [2020-10-14 22:20:17,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:17,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [948855266] [2020-10-14 22:20:17,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:17,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:17,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:17,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:18,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:22,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:22,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 986 [2020-10-14 22:20:22,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:20:22,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-14 22:20:22,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:22,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:22,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:20:22,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:20:22,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-14 22:20:22,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:22,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:22,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:22,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:22,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:22,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:22,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:20:22,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:22,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:22,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:22,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:22,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:20:22,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:22,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:22,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:22,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:22,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:22,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:20:22,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:20:22,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-10-14 22:20:22,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:22,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:22,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:22,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:22,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-14 22:20:22,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:22,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:20:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:23,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:23,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:23,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:20:23,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:23,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-14 22:20:23,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:23,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:23,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:23,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:23,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:20:23,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:23,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-14 22:20:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:23,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:23,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:23,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:20:23,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:23,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:20:23,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:23,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:23,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:23,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:20:23,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:23,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:23,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-14 22:20:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:23,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:23,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:23,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:20:23,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:23,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:20:23,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:23,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:23,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:23,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:20:23,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:23,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:23,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 688 [2020-10-14 22:20:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:23,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:23,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:23,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:20:23,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:23,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 22:20:23,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:23,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:23,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:23,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:20:23,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:23,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:24,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 293 proven. 426 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2020-10-14 22:20:24,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [948855266] [2020-10-14 22:20:24,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:24,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:20:24,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551689796] [2020-10-14 22:20:24,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:24,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:24,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:24,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:24,406 INFO L87 Difference]: Start difference. First operand 5529 states and 6113 transitions. Second operand 7 states. [2020-10-14 22:20:26,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:26,865 INFO L93 Difference]: Finished difference Result 10394 states and 11552 transitions. [2020-10-14 22:20:26,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:20:26,866 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 968 [2020-10-14 22:20:26,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:26,888 INFO L225 Difference]: With dead ends: 10394 [2020-10-14 22:20:26,889 INFO L226 Difference]: Without dead ends: 5547 [2020-10-14 22:20:26,899 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:20:26,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5547 states. [2020-10-14 22:20:27,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5547 to 5529. [2020-10-14 22:20:27,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5529 states. [2020-10-14 22:20:27,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5529 states to 5529 states and 6111 transitions. [2020-10-14 22:20:27,014 INFO L78 Accepts]: Start accepts. Automaton has 5529 states and 6111 transitions. Word has length 968 [2020-10-14 22:20:27,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:27,016 INFO L479 AbstractCegarLoop]: Abstraction has 5529 states and 6111 transitions. [2020-10-14 22:20:27,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:27,016 INFO L276 IsEmpty]: Start isEmpty. Operand 5529 states and 6111 transitions. [2020-10-14 22:20:27,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1003 [2020-10-14 22:20:27,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:27,043 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:20:27,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:20:27,044 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:27,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:27,045 INFO L82 PathProgramCache]: Analyzing trace with hash -625309873, now seen corresponding path program 1 times [2020-10-14 22:20:27,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:27,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291607974] [2020-10-14 22:20:27,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:27,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:27,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:27,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:32,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:32,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1022 [2020-10-14 22:20:32,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:20:32,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5074 [2020-10-14 22:20:32,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:32,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:32,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:32,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 22:20:32,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 22:20:32,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:32,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:32,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:32,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:32,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:32,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:32,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:20:32,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:32,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:32,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:32,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:32,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:32,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:32,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:32,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:32,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:32,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:20:32,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:32,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 22:20:32,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:32,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:32,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:32,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:32,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 22:20:32,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:32,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:20:32,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:32,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:32,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:32,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:20:32,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:32,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-14 22:20:32,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:32,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:32,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:32,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:32,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 22:20:32,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:33,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:20:33,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:33,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:33,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:33,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:20:33,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:33,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 22:20:33,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:33,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:33,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:33,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-14 22:20:33,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:33,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:33,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:20:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:33,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:33,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:33,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:20:33,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:33,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:20:33,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:33,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:33,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:33,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:20:33,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:33,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:33,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-14 22:20:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:33,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:33,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:33,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:20:33,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:33,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:20:33,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:33,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:33,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:33,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:20:33,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:33,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:33,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2020-10-14 22:20:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:33,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:33,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:33,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:20:33,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:33,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-14 22:20:33,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:33,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:33,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:33,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:20:33,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:33,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:34,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1803 backedges. 223 proven. 465 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2020-10-14 22:20:34,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1291607974] [2020-10-14 22:20:34,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:34,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:20:34,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425740235] [2020-10-14 22:20:34,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:34,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:34,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:34,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:34,317 INFO L87 Difference]: Start difference. First operand 5529 states and 6111 transitions. Second operand 7 states. [2020-10-14 22:20:37,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:37,470 INFO L93 Difference]: Finished difference Result 12110 states and 13540 transitions. [2020-10-14 22:20:37,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:20:37,471 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1002 [2020-10-14 22:20:37,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:37,494 INFO L225 Difference]: With dead ends: 12110 [2020-10-14 22:20:37,495 INFO L226 Difference]: Without dead ends: 6924 [2020-10-14 22:20:37,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:20:37,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6924 states. [2020-10-14 22:20:37,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6924 to 6554. [2020-10-14 22:20:37,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6554 states. [2020-10-14 22:20:37,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6554 states to 6554 states and 7195 transitions. [2020-10-14 22:20:37,635 INFO L78 Accepts]: Start accepts. Automaton has 6554 states and 7195 transitions. Word has length 1002 [2020-10-14 22:20:37,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:37,636 INFO L479 AbstractCegarLoop]: Abstraction has 6554 states and 7195 transitions. [2020-10-14 22:20:37,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:37,636 INFO L276 IsEmpty]: Start isEmpty. Operand 6554 states and 7195 transitions. [2020-10-14 22:20:37,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1064 [2020-10-14 22:20:37,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:37,658 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 22:20:37,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:20:37,658 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:37,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:37,659 INFO L82 PathProgramCache]: Analyzing trace with hash -208235882, now seen corresponding path program 1 times [2020-10-14 22:20:37,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:37,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [969976082] [2020-10-14 22:20:37,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:38,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:38,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:38,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:42,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:42,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1083 [2020-10-14 22:20:42,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:20:42,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-14 22:20:42,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:42,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:42,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:42,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 474 [2020-10-14 22:20:42,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:20:42,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:43,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:43,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:43,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:43,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:43,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:43,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:20:43,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:43,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:43,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:43,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:43,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:43,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:43,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:43,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:43,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:43,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:43,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:20:43,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:43,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:20:43,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:43,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:43,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:43,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:43,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:43,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:43,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:20:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:43,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:43,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:43,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:20:43,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:43,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 22:20:43,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:43,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:43,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:43,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:43,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 22:20:43,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:43,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:20:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:43,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:43,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:43,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:20:43,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:43,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-14 22:20:43,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:43,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:20:43,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:43,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:20:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:43,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:43,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:43,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:20:43,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:43,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:20:43,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:43,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:43,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:43,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:20:43,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:43,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:43,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-14 22:20:43,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:43,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:43,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:43,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:20:43,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:43,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 22:20:43,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:43,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:43,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:43,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:20:43,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:43,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:43,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 783 [2020-10-14 22:20:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:43,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:43,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:43,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:20:43,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:43,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-14 22:20:43,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:43,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:43,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:43,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:20:43,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:43,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:44,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1925 backedges. 329 proven. 306 refuted. 0 times theorem prover too weak. 1290 trivial. 0 not checked. [2020-10-14 22:20:44,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [969976082] [2020-10-14 22:20:44,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:44,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:20:44,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438136088] [2020-10-14 22:20:44,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:44,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:44,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:44,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:44,767 INFO L87 Difference]: Start difference. First operand 6554 states and 7195 transitions. Second operand 7 states. [2020-10-14 22:20:47,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:47,695 INFO L93 Difference]: Finished difference Result 13116 states and 14444 transitions. [2020-10-14 22:20:47,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:20:47,702 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1063 [2020-10-14 22:20:47,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:47,733 INFO L225 Difference]: With dead ends: 13116 [2020-10-14 22:20:47,733 INFO L226 Difference]: Without dead ends: 6907 [2020-10-14 22:20:47,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:20:47,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6907 states. [2020-10-14 22:20:47,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6907 to 6895. [2020-10-14 22:20:47,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6895 states. [2020-10-14 22:20:47,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6895 states to 6895 states and 7551 transitions. [2020-10-14 22:20:47,863 INFO L78 Accepts]: Start accepts. Automaton has 6895 states and 7551 transitions. Word has length 1063 [2020-10-14 22:20:47,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:47,864 INFO L479 AbstractCegarLoop]: Abstraction has 6895 states and 7551 transitions. [2020-10-14 22:20:47,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:47,864 INFO L276 IsEmpty]: Start isEmpty. Operand 6895 states and 7551 transitions. [2020-10-14 22:20:47,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1066 [2020-10-14 22:20:47,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:47,888 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:20:47,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:20:47,888 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:47,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:47,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1991123514, now seen corresponding path program 1 times [2020-10-14 22:20:47,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:47,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759664666] [2020-10-14 22:20:47,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:48,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:48,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:49,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:51,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:51,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:53,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:53,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1085 [2020-10-14 22:20:53,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:20:53,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-14 22:20:53,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:53,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:53,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:53,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 795 [2020-10-14 22:20:53,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:20:53,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:53,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:53,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:53,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:53,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:53,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:53,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:20:53,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:53,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:53,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:53,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:53,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:53,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:53,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:53,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:53,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:53,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:53,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:20:53,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:53,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:20:53,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:53,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:53,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:53,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:53,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:53,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:53,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:20:53,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:53,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:53,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:53,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:20:53,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:53,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:20:53,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:53,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:53,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:53,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:53,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:53,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:53,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:20:53,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:53,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:53,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:53,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:20:53,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:53,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:20:53,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:53,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:53,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:53,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:53,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:53,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:53,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-14 22:20:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:53,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:53,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:53,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:20:53,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:53,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:20:53,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:53,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:53,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:53,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:53,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:53,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:53,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 670 [2020-10-14 22:20:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:53,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:53,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:53,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:20:53,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:53,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:20:53,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:53,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:53,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:53,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:53,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:20:53,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:53,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 785 [2020-10-14 22:20:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:53,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:54,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:54,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:20:54,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:54,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-10-14 22:20:54,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:54,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:54,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:54,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:54,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:20:54,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:55,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1929 backedges. 830 proven. 2 refuted. 0 times theorem prover too weak. 1097 trivial. 0 not checked. [2020-10-14 22:20:55,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1759664666] [2020-10-14 22:20:55,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:55,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:20:55,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297771071] [2020-10-14 22:20:55,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:20:55,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:55,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:20:55,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:20:55,081 INFO L87 Difference]: Start difference. First operand 6895 states and 7551 transitions. Second operand 8 states. [2020-10-14 22:20:59,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:59,761 INFO L93 Difference]: Finished difference Result 16523 states and 18348 transitions. [2020-10-14 22:20:59,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 22:20:59,763 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1065 [2020-10-14 22:20:59,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:59,794 INFO L225 Difference]: With dead ends: 16523 [2020-10-14 22:20:59,794 INFO L226 Difference]: Without dead ends: 9973 [2020-10-14 22:20:59,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 22:20:59,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9973 states. [2020-10-14 22:20:59,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9973 to 8944. [2020-10-14 22:20:59,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8944 states. [2020-10-14 22:20:59,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8944 states to 8944 states and 9939 transitions. [2020-10-14 22:20:59,986 INFO L78 Accepts]: Start accepts. Automaton has 8944 states and 9939 transitions. Word has length 1065 [2020-10-14 22:20:59,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:59,988 INFO L479 AbstractCegarLoop]: Abstraction has 8944 states and 9939 transitions. [2020-10-14 22:20:59,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:20:59,988 INFO L276 IsEmpty]: Start isEmpty. Operand 8944 states and 9939 transitions. [2020-10-14 22:21:00,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1118 [2020-10-14 22:21:00,013 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:00,015 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:21:00,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:21:00,015 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:00,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:00,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1744306434, now seen corresponding path program 1 times [2020-10-14 22:21:00,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:00,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460994800] [2020-10-14 22:21:00,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:00,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:00,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:00,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:05,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:05,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1141 [2020-10-14 22:21:05,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:21:05,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-14 22:21:05,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:05,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:05,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:05,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 476 [2020-10-14 22:21:05,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:21:05,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:05,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:05,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:05,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:05,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:05,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:05,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:21:05,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:05,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:05,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:05,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:05,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:05,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:05,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:05,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:05,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:05,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:21:05,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:05,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:21:05,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:05,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:05,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:05,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:05,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:05,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:05,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:21:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:05,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:05,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:05,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:21:05,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:05,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 22:21:05,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:05,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:05,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:05,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:05,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-14 22:21:05,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:05,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:21:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:05,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:05,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:05,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:21:05,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:05,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 22:21:05,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:05,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:05,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:05,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:05,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:21:05,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:05,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-14 22:21:05,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:05,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:05,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:05,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:21:05,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:05,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:21:05,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:05,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:05,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:05,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 22:21:05,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:05,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:05,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-14 22:21:05,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:05,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:06,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:06,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:21:06,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:06,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:21:06,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:06,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:06,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:06,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:21:06,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:06,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:06,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2020-10-14 22:21:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:06,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:06,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:06,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:21:06,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:06,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:21:06,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:06,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:06,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:06,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:21:06,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:06,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:06,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 928 [2020-10-14 22:21:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:06,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:06,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:06,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:21:06,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:06,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:21:06,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:06,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:06,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:06,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:21:06,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:06,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:06,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1038 [2020-10-14 22:21:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:06,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:06,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:06,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:21:06,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:06,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:21:06,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:06,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:06,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:06,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:21:06,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:06,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:06,865 INFO L134 CoverageAnalysis]: Checked inductivity of 2892 backedges. 361 proven. 483 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2020-10-14 22:21:06,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460994800] [2020-10-14 22:21:06,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:21:06,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:21:06,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995164640] [2020-10-14 22:21:06,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:21:06,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:21:06,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:21:06,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:21:06,868 INFO L87 Difference]: Start difference. First operand 8944 states and 9939 transitions. Second operand 7 states. [2020-10-14 22:21:11,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:11,350 INFO L93 Difference]: Finished difference Result 21288 states and 23988 transitions. [2020-10-14 22:21:11,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:21:11,356 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1117 [2020-10-14 22:21:11,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:11,404 INFO L225 Difference]: With dead ends: 21288 [2020-10-14 22:21:11,405 INFO L226 Difference]: Without dead ends: 12689 [2020-10-14 22:21:11,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:21:11,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12689 states. [2020-10-14 22:21:11,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12689 to 12350. [2020-10-14 22:21:11,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12350 states. [2020-10-14 22:21:11,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12350 states to 12350 states and 13694 transitions. [2020-10-14 22:21:11,709 INFO L78 Accepts]: Start accepts. Automaton has 12350 states and 13694 transitions. Word has length 1117 [2020-10-14 22:21:11,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:11,710 INFO L479 AbstractCegarLoop]: Abstraction has 12350 states and 13694 transitions. [2020-10-14 22:21:11,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:21:11,711 INFO L276 IsEmpty]: Start isEmpty. Operand 12350 states and 13694 transitions. [2020-10-14 22:21:11,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1152 [2020-10-14 22:21:11,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:11,756 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 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 22:21:11,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:21:11,757 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:11,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:11,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1070786086, now seen corresponding path program 1 times [2020-10-14 22:21:11,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:11,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [638764996] [2020-10-14 22:21:11,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:11,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:12,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:12,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:12,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:17,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:17,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1175 [2020-10-14 22:21:17,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:21:17,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 22:21:17,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:17,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:17,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:17,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 713 [2020-10-14 22:21:17,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 22:21:17,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:17,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:17,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:17,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:17,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:17,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:17,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:21:17,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:17,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:17,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:17,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:17,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:17,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:17,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:17,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:17,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:17,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:21:17,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:17,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:21:17,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:17,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:17,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:17,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:17,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:17,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:17,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:21:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:17,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:17,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:17,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:21:17,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:17,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:21:17,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:17,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:17,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:17,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:17,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:17,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:17,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:21:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:17,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:17,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:17,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:21:17,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:17,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:21:17,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:17,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:17,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:17,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:17,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:17,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:17,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 22:21:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:17,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:17,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:17,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:21:17,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:17,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:21:17,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:17,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:17,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:17,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:17,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 22:21:17,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:17,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2020-10-14 22:21:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:17,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:17,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:17,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:21:17,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:17,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 22:21:17,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:17,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:21:17,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:17,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 820 [2020-10-14 22:21:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:17,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:17,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:17,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:21:17,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:17,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:21:17,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:17,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:17,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:17,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:21:17,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:17,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:17,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 962 [2020-10-14 22:21:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:17,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:17,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:17,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:21:17,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:17,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:21:17,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:17,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:17,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:17,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:21:17,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:17,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:17,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1072 [2020-10-14 22:21:17,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:17,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:17,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:17,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:21:17,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:17,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:21:17,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:17,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:17,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:17,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:21:17,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:17,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:18,305 INFO L134 CoverageAnalysis]: Checked inductivity of 2973 backedges. 530 proven. 290 refuted. 0 times theorem prover too weak. 2153 trivial. 0 not checked. [2020-10-14 22:21:18,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [638764996] [2020-10-14 22:21:18,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:21:18,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:21:18,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569624028] [2020-10-14 22:21:18,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:21:18,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:21:18,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:21:18,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:21:18,308 INFO L87 Difference]: Start difference. First operand 12350 states and 13694 transitions. Second operand 7 states. [2020-10-14 22:21:22,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:22,614 INFO L93 Difference]: Finished difference Result 28080 states and 31448 transitions. [2020-10-14 22:21:22,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:21:22,620 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1151 [2020-10-14 22:21:22,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:22,661 INFO L225 Difference]: With dead ends: 28080 [2020-10-14 22:21:22,661 INFO L226 Difference]: Without dead ends: 16416 [2020-10-14 22:21:22,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:21:22,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16416 states. [2020-10-14 22:21:22,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16416 to 15736. [2020-10-14 22:21:22,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15736 states. [2020-10-14 22:21:22,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15736 states to 15736 states and 17364 transitions. [2020-10-14 22:21:22,924 INFO L78 Accepts]: Start accepts. Automaton has 15736 states and 17364 transitions. Word has length 1151 [2020-10-14 22:21:22,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:22,925 INFO L479 AbstractCegarLoop]: Abstraction has 15736 states and 17364 transitions. [2020-10-14 22:21:22,925 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:21:22,925 INFO L276 IsEmpty]: Start isEmpty. Operand 15736 states and 17364 transitions. [2020-10-14 22:21:22,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1180 [2020-10-14 22:21:22,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:22,959 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 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 22:21:22,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:21:22,959 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:22,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:22,960 INFO L82 PathProgramCache]: Analyzing trace with hash 166385362, now seen corresponding path program 1 times [2020-10-14 22:21:22,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:22,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831223282] [2020-10-14 22:21:22,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:23,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:23,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:25,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:25,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:27,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:28,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:28,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1203 [2020-10-14 22:21:28,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:21:28,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 22:21:28,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:28,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:28,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:28,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 712 [2020-10-14 22:21:28,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 22:21:28,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:28,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:28,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:28,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:28,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:28,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:28,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:21:28,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:28,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:28,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:28,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:28,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:28,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:28,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:28,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:28,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:28,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:21:28,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:28,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:21:28,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:28,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:28,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:28,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:28,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:28,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:28,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:21:28,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:28,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:28,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:28,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:21:28,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:28,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:21:28,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:28,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:28,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:28,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:28,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:28,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:28,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:21:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:28,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:28,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:28,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:21:28,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:28,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:21:28,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:28,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:28,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:28,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:28,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:28,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:28,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 22:21:28,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:28,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:28,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:28,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:21:28,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:28,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:21:28,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:28,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:28,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:28,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:28,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 22:21:28,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:28,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 704 [2020-10-14 22:21:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:28,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:28,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:28,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:21:28,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:28,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 22:21:28,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:28,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:28,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:28,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:28,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 22:21:28,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:28,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 848 [2020-10-14 22:21:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:28,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:28,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:28,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:21:28,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:28,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:21:28,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:28,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:28,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:28,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:21:28,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:28,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:28,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 990 [2020-10-14 22:21:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:28,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:28,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:28,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:21:28,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:28,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:21:28,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:28,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:28,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:28,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:21:28,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:28,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:28,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1100 [2020-10-14 22:21:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:28,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:28,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:28,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:21:28,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:28,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:21:28,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:28,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:28,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:28,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:21:28,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:28,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:29,546 INFO L134 CoverageAnalysis]: Checked inductivity of 3080 backedges. 616 proven. 317 refuted. 0 times theorem prover too weak. 2147 trivial. 0 not checked. [2020-10-14 22:21:29,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1831223282] [2020-10-14 22:21:29,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:21:29,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:21:29,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120866077] [2020-10-14 22:21:29,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:21:29,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:21:29,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:21:29,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:21:29,549 INFO L87 Difference]: Start difference. First operand 15736 states and 17364 transitions. Second operand 7 states. [2020-10-14 22:21:32,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:32,960 INFO L93 Difference]: Finished difference Result 34849 states and 38960 transitions. [2020-10-14 22:21:32,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:21:32,962 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1179 [2020-10-14 22:21:32,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:33,011 INFO L225 Difference]: With dead ends: 34849 [2020-10-14 22:21:33,011 INFO L226 Difference]: Without dead ends: 19799 [2020-10-14 22:21:33,031 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:21:33,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19799 states. [2020-10-14 22:21:33,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19799 to 19123. [2020-10-14 22:21:33,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19123 states. [2020-10-14 22:21:33,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19123 states to 19123 states and 21118 transitions. [2020-10-14 22:21:33,301 INFO L78 Accepts]: Start accepts. Automaton has 19123 states and 21118 transitions. Word has length 1179 [2020-10-14 22:21:33,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:33,302 INFO L479 AbstractCegarLoop]: Abstraction has 19123 states and 21118 transitions. [2020-10-14 22:21:33,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:21:33,303 INFO L276 IsEmpty]: Start isEmpty. Operand 19123 states and 21118 transitions. [2020-10-14 22:21:33,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1203 [2020-10-14 22:21:33,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:33,336 INFO L422 BasicCegarLoop]: trace histogram [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, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:21:33,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 22:21:33,337 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:33,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:33,337 INFO L82 PathProgramCache]: Analyzing trace with hash -451098093, now seen corresponding path program 1 times [2020-10-14 22:21:33,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:33,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2020550926] [2020-10-14 22:21:33,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:33,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:33,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:33,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:34,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:38,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:38,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1226 [2020-10-14 22:21:38,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:21:38,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5186 [2020-10-14 22:21:38,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:38,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:38,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:38,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 359 [2020-10-14 22:21:38,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 222 [2020-10-14 22:21:38,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:38,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:38,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:38,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:38,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:38,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:38,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:21:38,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:38,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:38,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:38,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:38,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:38,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:38,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:38,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:38,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:38,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:21:38,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:38,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 22:21:38,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:38,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:38,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:38,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:38,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:38,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:39,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:21:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:39,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:39,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:39,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:21:39,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:39,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 22:21:39,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:39,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:39,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:39,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:39,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 22:21:39,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:39,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-14 22:21:39,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:39,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:39,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:39,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 22:21:39,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:39,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-10-14 22:21:39,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:39,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:39,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:39,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:39,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-14 22:21:39,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:39,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 574 [2020-10-14 22:21:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:39,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:39,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:39,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 22:21:39,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:39,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 22:21:39,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:39,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:39,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:39,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-14 22:21:39,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:39,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:39,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 727 [2020-10-14 22:21:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:39,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:39,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:39,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:21:39,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:39,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 22:21:39,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:39,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:39,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:39,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 22:21:39,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:39,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:40,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 871 [2020-10-14 22:21:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:40,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:40,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:40,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:21:40,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:40,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 22:21:40,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:40,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:40,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:40,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:21:40,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:40,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:40,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1013 [2020-10-14 22:21:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:40,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:40,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:40,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:21:40,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:40,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 22:21:40,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:40,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:21:40,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:40,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:40,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1123 [2020-10-14 22:21:40,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:40,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:40,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:40,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:21:40,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:40,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 22:21:40,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:40,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:40,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:40,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:21:40,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:40,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:41,362 INFO L134 CoverageAnalysis]: Checked inductivity of 3243 backedges. 422 proven. 608 refuted. 0 times theorem prover too weak. 2213 trivial. 0 not checked. [2020-10-14 22:21:41,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2020550926] [2020-10-14 22:21:41,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:21:41,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:21:41,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500443394] [2020-10-14 22:21:41,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:21:41,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:21:41,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:21:41,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:21:41,365 INFO L87 Difference]: Start difference. First operand 19123 states and 21118 transitions. Second operand 7 states. [2020-10-14 22:21:44,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:44,679 INFO L93 Difference]: Finished difference Result 39597 states and 43816 transitions. [2020-10-14 22:21:44,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:21:44,680 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1202 [2020-10-14 22:21:44,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:44,728 INFO L225 Difference]: With dead ends: 39597 [2020-10-14 22:21:44,728 INFO L226 Difference]: Without dead ends: 21160 [2020-10-14 22:21:44,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:21:44,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21160 states. [2020-10-14 22:21:45,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21160 to 20821. [2020-10-14 22:21:45,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20821 states. [2020-10-14 22:21:45,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20821 states to 20821 states and 22929 transitions. [2020-10-14 22:21:45,222 INFO L78 Accepts]: Start accepts. Automaton has 20821 states and 22929 transitions. Word has length 1202 [2020-10-14 22:21:45,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:45,222 INFO L479 AbstractCegarLoop]: Abstraction has 20821 states and 22929 transitions. [2020-10-14 22:21:45,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:21:45,223 INFO L276 IsEmpty]: Start isEmpty. Operand 20821 states and 22929 transitions. [2020-10-14 22:21:45,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1397 [2020-10-14 22:21:45,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:45,303 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 7, 7, 7, 7, 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, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 22:21:45,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 22:21:45,303 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:45,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:45,304 INFO L82 PathProgramCache]: Analyzing trace with hash 217113183, now seen corresponding path program 1 times [2020-10-14 22:21:45,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:45,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1332076470] [2020-10-14 22:21:45,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:45,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:46,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:50,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:50,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:50,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1422 [2020-10-14 22:21:50,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:21:50,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-14 22:21:50,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:50,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:50,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:50,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1194 [2020-10-14 22:21:50,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 22:21:50,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:50,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:50,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:50,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:50,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:50,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:50,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:21:50,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:50,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:50,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:50,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:50,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:50,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:50,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:50,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:50,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:50,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:21:50,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:50,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:21:50,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:50,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:50,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:50,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:50,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:50,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:50,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:21:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:50,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:50,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:50,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 22:21:50,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:50,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:21:50,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:50,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:50,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:50,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:50,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:50,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:50,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-14 22:21:50,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:50,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 22:21:51,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:51,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:21:51,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:51,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:51,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:51,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:51,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:51,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2020-10-14 22:21:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:51,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 22:21:51,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:51,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:21:51,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:51,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:51,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:51,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:51,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:51,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 22:21:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:51,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:21:51,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:51,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:21:51,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:51,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:51,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:51,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:51,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:51,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 928 [2020-10-14 22:21:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:51,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:21:51,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:51,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:21:51,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:51,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:51,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:51,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:51,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:51,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-14 22:21:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:51,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:21:51,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:51,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:21:51,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:51,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:51,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:51,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 22:21:51,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:51,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1180 [2020-10-14 22:21:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:51,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 22:21:51,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:51,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 22:21:51,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:51,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:51,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:51,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 22:21:51,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:51,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1318 [2020-10-14 22:21:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:51,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:21:51,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:51,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:21:51,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:51,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:51,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:21:51,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:51,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:52,428 INFO L134 CoverageAnalysis]: Checked inductivity of 4516 backedges. 1047 proven. 70 refuted. 0 times theorem prover too weak. 3399 trivial. 0 not checked. [2020-10-14 22:21:52,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1332076470] [2020-10-14 22:21:52,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:21:52,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:21:52,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91433776] [2020-10-14 22:21:52,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:21:52,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:21:52,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:21:52,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:21:52,431 INFO L87 Difference]: Start difference. First operand 20821 states and 22929 transitions. Second operand 7 states. [2020-10-14 22:21:55,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:55,671 INFO L93 Difference]: Finished difference Result 43347 states and 47813 transitions. [2020-10-14 22:21:55,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:21:55,672 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1396 [2020-10-14 22:21:55,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:55,707 INFO L225 Difference]: With dead ends: 43347 [2020-10-14 22:21:55,707 INFO L226 Difference]: Without dead ends: 20135 [2020-10-14 22:21:55,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 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 22:21:55,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20135 states. [2020-10-14 22:21:55,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20135 to 20103. [2020-10-14 22:21:55,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20103 states. [2020-10-14 22:21:56,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20103 states to 20103 states and 21597 transitions. [2020-10-14 22:21:56,007 INFO L78 Accepts]: Start accepts. Automaton has 20103 states and 21597 transitions. Word has length 1396 [2020-10-14 22:21:56,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:56,009 INFO L479 AbstractCegarLoop]: Abstraction has 20103 states and 21597 transitions. [2020-10-14 22:21:56,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:21:56,009 INFO L276 IsEmpty]: Start isEmpty. Operand 20103 states and 21597 transitions. [2020-10-14 22:21:56,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1403 [2020-10-14 22:21:56,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:56,035 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:21:56,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 22:21:56,036 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:56,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:56,036 INFO L82 PathProgramCache]: Analyzing trace with hash 707595751, now seen corresponding path program 1 times [2020-10-14 22:21:56,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:56,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977920036] [2020-10-14 22:21:56,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:56,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:56,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:57,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:01,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:01,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1426 [2020-10-14 22:22:01,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:22:01,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-14 22:22:01,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:01,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:01,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 22:22:01,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 938 [2020-10-14 22:22:01,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 487 [2020-10-14 22:22:01,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:01,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:22:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:01,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:01,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:01,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:22:01,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:01,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:22:01,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:01,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:01,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:01,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:01,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:01,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:01,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:22:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:01,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:01,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:01,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:22:01,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:01,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:22:01,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:01,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:01,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:01,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:01,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:01,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:01,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:22:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:01,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:01,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:01,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 22:22:01,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:01,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:22:01,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:01,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:01,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:01,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-14 22:22:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:01,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:01,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:01,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 22:22:01,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:01,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:22:01,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:01,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:01,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:01,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:01,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:01,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:01,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2020-10-14 22:22:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:01,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:01,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:01,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 22:22:01,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:01,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:22:01,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:01,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:01,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:01,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:01,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:01,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:01,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 22:22:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:01,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:01,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:01,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:22:01,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:01,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 22:22:01,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:01,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:01,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:01,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:01,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 22:22:01,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:01,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 928 [2020-10-14 22:22:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:01,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:01,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:02,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:02,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:22:02,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:22:02,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-14 22:22:02,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:02,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:02,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:02,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:02,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 22:22:02,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:02,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-14 22:22:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:02,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:02,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:02,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:02,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:22:02,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:22:02,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 22:22:02,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:02,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:02,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:02,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:02,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 22:22:02,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:02,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1180 [2020-10-14 22:22:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:02,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:02,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:02,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:02,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:22:02,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:22:02,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 348 [2020-10-14 22:22:02,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:02,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:02,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:02,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:02,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-14 22:22:02,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:03,419 INFO L134 CoverageAnalysis]: Checked inductivity of 4138 backedges. 140 proven. 8 refuted. 0 times theorem prover too weak. 3990 trivial. 0 not checked. [2020-10-14 22:22:03,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977920036] [2020-10-14 22:22:03,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:22:03,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 22:22:03,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700322253] [2020-10-14 22:22:03,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 22:22:03,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:22:03,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 22:22:03,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:22:03,421 INFO L87 Difference]: Start difference. First operand 20103 states and 21597 transitions. Second operand 6 states. [2020-10-14 22:22:06,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:22:06,184 INFO L93 Difference]: Finished difference Result 39520 states and 42503 transitions. [2020-10-14 22:22:06,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:22:06,185 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1402 [2020-10-14 22:22:06,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:22:06,228 INFO L225 Difference]: With dead ends: 39520 [2020-10-14 22:22:06,228 INFO L226 Difference]: Without dead ends: 20103 [2020-10-14 22:22:06,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:22:06,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20103 states. [2020-10-14 22:22:06,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20103 to 20103. [2020-10-14 22:22:06,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20103 states. [2020-10-14 22:22:06,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20103 states to 20103 states and 21468 transitions. [2020-10-14 22:22:06,520 INFO L78 Accepts]: Start accepts. Automaton has 20103 states and 21468 transitions. Word has length 1402 [2020-10-14 22:22:06,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:22:06,522 INFO L479 AbstractCegarLoop]: Abstraction has 20103 states and 21468 transitions. [2020-10-14 22:22:06,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 22:22:06,522 INFO L276 IsEmpty]: Start isEmpty. Operand 20103 states and 21468 transitions. [2020-10-14 22:22:06,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1475 [2020-10-14 22:22:06,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:22:06,557 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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 22:22:06,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 22:22:06,557 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:22:06,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:22:06,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1079461461, now seen corresponding path program 1 times [2020-10-14 22:22:06,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:22:06,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1680475656] [2020-10-14 22:22:06,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:22:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:07,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:07,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:07,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:12,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:12,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1500 [2020-10-14 22:22:12,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:22:12,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5228 [2020-10-14 22:22:12,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:12,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:12,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:12,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1194 [2020-10-14 22:22:12,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 22:22:12,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:12,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:22:12,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:12,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:12,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:12,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:22:12,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:12,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:22:12,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:12,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:12,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:12,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:12,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:12,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:12,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:22:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:12,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:12,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:12,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:22:12,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:12,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:22:12,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:12,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:12,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:12,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:12,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:12,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:12,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:22:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:12,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:12,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:12,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 22:22:12,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:12,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:22:12,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:12,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:12,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:12,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:12,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:12,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:12,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-14 22:22:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:12,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:12,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:12,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 22:22:12,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:12,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 22:22:12,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:12,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:12,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:12,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:12,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:12,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:12,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2020-10-14 22:22:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:12,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:12,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:12,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 22:22:12,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:12,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:22:12,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:12,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:12,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:12,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:12,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:12,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:12,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 22:22:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:12,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:12,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:12,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:22:12,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:12,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:22:12,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:12,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:12,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:12,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:12,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:12,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:12,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 928 [2020-10-14 22:22:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:12,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:12,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:12,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:22:12,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:12,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:22:12,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:12,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:12,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:12,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:12,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:12,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:12,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-14 22:22:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:12,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:12,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:12,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:22:12,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:12,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:22:12,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:12,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:12,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:12,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:12,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 22:22:12,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:12,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1180 [2020-10-14 22:22:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:12,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:12,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:12,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:22:12,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:12,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 22:22:12,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:12,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:12,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:12,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:22:12,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 22:22:12,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:13,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1395 [2020-10-14 22:22:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:13,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:13,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:13,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:22:13,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:13,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:22:13,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:13,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:13,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:13,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:22:13,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:13,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:14,014 INFO L134 CoverageAnalysis]: Checked inductivity of 4722 backedges. 1245 proven. 71 refuted. 0 times theorem prover too weak. 3406 trivial. 0 not checked. [2020-10-14 22:22:14,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1680475656] [2020-10-14 22:22:14,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:22:14,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:22:14,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744645982] [2020-10-14 22:22:14,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:22:14,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:22:14,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:22:14,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:22:14,017 INFO L87 Difference]: Start difference. First operand 20103 states and 21468 transitions. Second operand 7 states. [2020-10-14 22:22:17,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:22:17,269 INFO L93 Difference]: Finished difference Result 40199 states and 42941 transitions. [2020-10-14 22:22:17,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:22:17,270 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1474 [2020-10-14 22:22:17,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:22:17,303 INFO L225 Difference]: With dead ends: 40199 [2020-10-14 22:22:17,303 INFO L226 Difference]: Without dead ends: 20782 [2020-10-14 22:22:17,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 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 22:22:17,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20782 states. [2020-10-14 22:22:17,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20782 to 20102. [2020-10-14 22:22:17,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20102 states. [2020-10-14 22:22:17,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20102 states to 20102 states and 21322 transitions. [2020-10-14 22:22:17,606 INFO L78 Accepts]: Start accepts. Automaton has 20102 states and 21322 transitions. Word has length 1474 [2020-10-14 22:22:17,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:22:17,607 INFO L479 AbstractCegarLoop]: Abstraction has 20102 states and 21322 transitions. [2020-10-14 22:22:17,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:22:17,607 INFO L276 IsEmpty]: Start isEmpty. Operand 20102 states and 21322 transitions. [2020-10-14 22:22:17,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1881 [2020-10-14 22:22:17,643 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:22:17,644 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:22:17,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 22:22:17,644 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:22:17,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:22:17,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1734613743, now seen corresponding path program 1 times [2020-10-14 22:22:17,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:22:17,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1256707935] [2020-10-14 22:22:17,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:22:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:18,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:18,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:19,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:20,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:22,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:23,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:23,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1908 [2020-10-14 22:22:23,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:22:23,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5222 [2020-10-14 22:22:23,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:23,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:23,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:23,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1213 [2020-10-14 22:22:23,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:22:23,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:23,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:22:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:23,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:23,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:23,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:22:23,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:23,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:22:23,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:23,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:23,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:23,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:23,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:23,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:23,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:22:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:23,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:23,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:23,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:22:23,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:23,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 22:22:23,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:23,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:23,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:23,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:23,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:23,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:23,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:22:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:23,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:23,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:23,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:22:23,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:23,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:22:23,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:23,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:23,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:23,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:23,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:23,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:23,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:22:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:23,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:23,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:23,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:22:23,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:23,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 22:22:23,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:23,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:23,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:23,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:23,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 22:22:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:24,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:24,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:24,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 22:22:24,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:24,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 22:22:24,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:24,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:24,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:24,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:24,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:24,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:24,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 836 [2020-10-14 22:22:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:24,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:24,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:24,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:22:24,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:24,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:22:24,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:24,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:24,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:24,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:24,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:24,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:24,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2020-10-14 22:22:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:24,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:24,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:24,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:22:24,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:24,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-10-14 22:22:24,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:24,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:24,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:24,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:24,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 245 [2020-10-14 22:22:24,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:24,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1201 [2020-10-14 22:22:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:24,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:25,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:25,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:22:25,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:25,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-10-14 22:22:25,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:25,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:25,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:25,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:22:25,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:22:25,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:25,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1474 [2020-10-14 22:22:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:25,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:25,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:25,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:22:25,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:25,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 22:22:25,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:25,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:25,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:25,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:22:25,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:25,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:25,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1586 [2020-10-14 22:22:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:25,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:25,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:25,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:22:25,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:25,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 22:22:25,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:25,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:25,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:25,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:22:25,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:25,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:25,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1801 [2020-10-14 22:22:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:25,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:25,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:25,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:22:25,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:25,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:22:25,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:25,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:25,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:25,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:22:25,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:25,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:27,472 INFO L134 CoverageAnalysis]: Checked inductivity of 6675 backedges. 1352 proven. 392 refuted. 0 times theorem prover too weak. 4931 trivial. 0 not checked. [2020-10-14 22:22:27,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1256707935] [2020-10-14 22:22:27,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:22:27,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:22:27,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347190766] [2020-10-14 22:22:27,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:22:27,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:22:27,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:22:27,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:22:27,475 INFO L87 Difference]: Start difference. First operand 20102 states and 21322 transitions. Second operand 7 states. [2020-10-14 22:22:31,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:22:31,426 INFO L93 Difference]: Finished difference Result 40878 states and 43390 transitions. [2020-10-14 22:22:31,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:22:31,427 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1880 [2020-10-14 22:22:31,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:22:31,457 INFO L225 Difference]: With dead ends: 40878 [2020-10-14 22:22:31,457 INFO L226 Difference]: Without dead ends: 21462 [2020-10-14 22:22:31,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:22:31,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21462 states. [2020-10-14 22:22:31,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21462 to 20443. [2020-10-14 22:22:31,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20443 states. [2020-10-14 22:22:31,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20443 states to 20443 states and 21607 transitions. [2020-10-14 22:22:31,739 INFO L78 Accepts]: Start accepts. Automaton has 20443 states and 21607 transitions. Word has length 1880 [2020-10-14 22:22:31,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:22:31,740 INFO L479 AbstractCegarLoop]: Abstraction has 20443 states and 21607 transitions. [2020-10-14 22:22:31,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:22:31,740 INFO L276 IsEmpty]: Start isEmpty. Operand 20443 states and 21607 transitions. [2020-10-14 22:22:31,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1955 [2020-10-14 22:22:31,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:22:31,787 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:22:31,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 22:22:31,787 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:22:31,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:22:31,788 INFO L82 PathProgramCache]: Analyzing trace with hash -59179369, now seen corresponding path program 1 times [2020-10-14 22:22:31,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:22:31,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833046140] [2020-10-14 22:22:31,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:22:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:32,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:32,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:36,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:36,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:37,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:37,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1984 [2020-10-14 22:22:37,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:22:37,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 22:22:37,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:37,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:37,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:37,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1678 [2020-10-14 22:22:37,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 22:22:37,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:37,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:22:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:37,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:37,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:37,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:22:37,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:37,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:22:37,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:37,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:37,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:37,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:37,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:37,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:37,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:22:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:37,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:37,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:37,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:22:37,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:37,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:22:37,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:37,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:37,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:37,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:37,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:37,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:37,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:22:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:37,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:37,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:37,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:22:37,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:37,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:22:37,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:37,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:37,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:37,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:37,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:37,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:37,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:22:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:37,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:37,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:37,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:22:37,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:37,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:22:37,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:37,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:37,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:37,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:37,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:37,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:37,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 22:22:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:37,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:37,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:37,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 22:22:37,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:37,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:22:37,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:37,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:37,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:37,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:37,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:37,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:37,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 836 [2020-10-14 22:22:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:37,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:37,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:37,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:22:37,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:37,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:22:37,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:37,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:37,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:37,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:37,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:37,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:37,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2020-10-14 22:22:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:37,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:37,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:37,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:22:37,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:37,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 22:22:37,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:37,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:37,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:37,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:37,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:37,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:38,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1201 [2020-10-14 22:22:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:38,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:38,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:38,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:22:38,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:38,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:22:38,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:38,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:38,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:38,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:38,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:38,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:38,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1275 [2020-10-14 22:22:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:38,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:38,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:38,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:22:38,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:38,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 22:22:38,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:38,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:38,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:38,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:38,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:38,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:38,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1548 [2020-10-14 22:22:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:38,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:38,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:38,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:22:38,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:38,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:22:38,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:38,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:38,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:38,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:38,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 22:22:38,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:38,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1660 [2020-10-14 22:22:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:38,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:38,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:38,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:22:38,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:38,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-14 22:22:38,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:38,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:38,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:38,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:22:38,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 22:22:38,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:38,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1875 [2020-10-14 22:22:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:38,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:38,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:38,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:22:38,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:38,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:22:38,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:38,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:38,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:38,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:22:38,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:38,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:40,830 INFO L134 CoverageAnalysis]: Checked inductivity of 7421 backedges. 1662 proven. 71 refuted. 0 times theorem prover too weak. 5688 trivial. 0 not checked. [2020-10-14 22:22:40,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [833046140] [2020-10-14 22:22:40,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:22:40,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:22:40,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145587587] [2020-10-14 22:22:40,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:22:40,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:22:40,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:22:40,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:22:40,833 INFO L87 Difference]: Start difference. First operand 20443 states and 21607 transitions. Second operand 7 states. [2020-10-14 22:22:44,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:22:44,044 INFO L93 Difference]: Finished difference Result 40547 states and 42902 transitions. [2020-10-14 22:22:44,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:22:44,045 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1954 [2020-10-14 22:22:44,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:22:44,084 INFO L225 Difference]: With dead ends: 40547 [2020-10-14 22:22:44,084 INFO L226 Difference]: Without dead ends: 20790 [2020-10-14 22:22:44,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 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 22:22:44,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20790 states. [2020-10-14 22:22:44,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20790 to 20443. [2020-10-14 22:22:44,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20443 states. [2020-10-14 22:22:44,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20443 states to 20443 states and 21600 transitions. [2020-10-14 22:22:44,347 INFO L78 Accepts]: Start accepts. Automaton has 20443 states and 21600 transitions. Word has length 1954 [2020-10-14 22:22:44,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:22:44,349 INFO L479 AbstractCegarLoop]: Abstraction has 20443 states and 21600 transitions. [2020-10-14 22:22:44,349 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:22:44,349 INFO L276 IsEmpty]: Start isEmpty. Operand 20443 states and 21600 transitions. [2020-10-14 22:22:44,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2081 [2020-10-14 22:22:44,417 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:22:44,419 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:22:44,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 22:22:44,419 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:22:44,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:22:44,420 INFO L82 PathProgramCache]: Analyzing trace with hash -155914025, now seen corresponding path program 1 times [2020-10-14 22:22:44,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:22:44,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [926487438] [2020-10-14 22:22:44,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:22:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:44,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:45,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:49,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:49,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:49,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2110 [2020-10-14 22:22:49,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:22:49,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5128 [2020-10-14 22:22:49,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:49,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:49,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:49,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1804 [2020-10-14 22:22:49,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 22:22:49,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:50,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:22:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:50,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:50,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:50,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:22:50,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:50,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:22:50,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:50,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:50,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:50,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:50,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:50,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:50,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:22:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:50,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:50,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:50,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:22:50,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:50,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 22:22:50,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:50,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:50,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:50,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:50,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:50,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:50,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:22:50,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:50,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:50,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:50,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:22:50,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:50,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:22:50,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:50,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:50,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:50,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:50,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:50,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:50,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:22:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:50,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:50,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:50,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:22:50,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:50,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:22:50,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:50,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:50,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:50,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:50,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:50,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:50,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 22:22:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:50,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:50,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:50,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 22:22:50,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:50,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:22:50,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:50,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:50,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:50,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:50,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:50,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:50,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 836 [2020-10-14 22:22:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:50,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:50,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:50,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:22:50,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:50,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 22:22:50,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:50,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:50,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:50,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:50,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:50,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:50,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2020-10-14 22:22:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:50,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:50,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:50,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:22:50,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:50,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:22:50,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:50,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:50,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:50,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:50,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:50,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:50,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1201 [2020-10-14 22:22:50,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:50,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:50,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:50,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 22:22:50,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:50,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 22:22:50,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:50,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:50,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:50,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:50,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:50,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:51,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:22:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:51,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:51,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:51,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 22:22:51,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:51,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:22:51,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:51,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:51,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:51,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:51,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:51,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:51,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1502 [2020-10-14 22:22:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:51,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:51,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:51,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-10-14 22:22:51,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:51,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-14 22:22:51,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:51,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:51,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:51,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:51,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 279 [2020-10-14 22:22:51,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:51,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1786 [2020-10-14 22:22:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:51,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:51,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:51,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:22:51,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:51,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-14 22:22:51,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:51,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:51,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:51,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:22:51,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 22:22:51,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:51,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2001 [2020-10-14 22:22:51,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:51,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:51,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:51,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:22:51,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:51,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:22:51,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:51,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:51,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:51,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:22:51,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:51,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:54,941 INFO L134 CoverageAnalysis]: Checked inductivity of 7471 backedges. 1677 proven. 71 refuted. 0 times theorem prover too weak. 5723 trivial. 0 not checked. [2020-10-14 22:22:54,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [926487438] [2020-10-14 22:22:54,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:22:54,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:22:54,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502008915] [2020-10-14 22:22:54,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:22:54,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:22:54,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:22:54,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:22:54,944 INFO L87 Difference]: Start difference. First operand 20443 states and 21600 transitions. Second operand 7 states.