/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_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:15:53,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:15:53,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:15:53,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:15:53,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:15:53,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:15:53,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:15:53,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:15:53,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:15:53,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:15:53,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:15:53,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:15:53,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:15:53,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:15:53,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:15:53,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:15:53,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:15:53,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:15:53,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:15:53,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:15:53,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:15:53,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:15:53,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:15:53,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:15:53,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:15:53,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:15:53,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:15:53,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:15:53,810 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:15:53,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:15:53,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:15:53,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:15:53,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:15:53,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:15:53,814 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:15:53,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:15:53,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:15:53,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:15:53,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:15:53,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:15:53,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:15:53,817 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 22:15:53,841 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:15:53,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:15:53,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:15:53,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:15:53,843 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:15:53,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:15:53,844 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:15:53,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:15:53,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:15:53,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:15:53,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:15:53,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:15:53,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:15:53,845 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:15:53,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:15:53,846 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:15:53,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:15:53,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:15:53,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:15:53,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:15:53,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:15:53,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:15:53,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:15:53,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:15:53,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:15:53,848 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:15:53,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:15:53,848 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:15:53,848 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:15:53,848 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 22:15:54,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:15:54,157 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:15:54,161 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:15:54,162 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:15:54,163 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:15:54,164 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label32.c [2020-10-14 22:15:54,229 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98fcc8d88/154b31b1966449f3a2339cbb36db0cc4/FLAGe9db08ab8 [2020-10-14 22:15:54,924 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:15:54,925 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label32.c [2020-10-14 22:15:54,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98fcc8d88/154b31b1966449f3a2339cbb36db0cc4/FLAGe9db08ab8 [2020-10-14 22:15:55,044 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98fcc8d88/154b31b1966449f3a2339cbb36db0cc4 [2020-10-14 22:15:55,055 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:15:55,057 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:15:55,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:15:55,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:15:55,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:15:55,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:15:55" (1/1) ... [2020-10-14 22:15:55,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:15:55, skipping insertion in model container [2020-10-14 22:15:55,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:15:55" (1/1) ... [2020-10-14 22:15:55,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:15:55,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:15:56,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:15:56,144 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:15:56,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:15:56,603 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:15:56,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:15:56 WrapperNode [2020-10-14 22:15:56,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:15:56,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:15:56,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:15:56,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:15:56,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:15:56" (1/1) ... [2020-10-14 22:15:56,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:15:56" (1/1) ... [2020-10-14 22:15:56,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:15:56" (1/1) ... [2020-10-14 22:15:56,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:15:56" (1/1) ... [2020-10-14 22:15:56,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:15:56" (1/1) ... [2020-10-14 22:15:56,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:15:56" (1/1) ... [2020-10-14 22:15:56,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:15:56" (1/1) ... [2020-10-14 22:15:56,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:15:56,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:15:56,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:15:56,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:15:56,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:15:56" (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 22:15:56,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:15:56,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:15:56,891 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:15:56,892 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:15:56,892 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:15:56,892 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:15:56,892 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:15:56,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:15:56,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:15:56,893 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:15:56,893 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:15:56,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:15:56,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:15:59,172 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:15:59,172 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:15:59,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:15:59 BoogieIcfgContainer [2020-10-14 22:15:59,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:15:59,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:15:59,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:15:59,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:15:59,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:15:55" (1/3) ... [2020-10-14 22:15:59,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc4a1ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:15:59, skipping insertion in model container [2020-10-14 22:15:59,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:15:56" (2/3) ... [2020-10-14 22:15:59,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc4a1ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:15:59, skipping insertion in model container [2020-10-14 22:15:59,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:15:59" (3/3) ... [2020-10-14 22:15:59,190 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label32.c [2020-10-14 22:15:59,201 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:15:59,209 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:15:59,224 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:15:59,253 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:15:59,253 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:15:59,253 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:15:59,253 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:15:59,253 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:15:59,253 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:15:59,254 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:15:59,254 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:15:59,288 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 22:15:59,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-14 22:15:59,303 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:15:59,304 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:15:59,304 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:15:59,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:15:59,311 INFO L82 PathProgramCache]: Analyzing trace with hash -808797987, now seen corresponding path program 1 times [2020-10-14 22:15:59,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:15:59,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1775305782] [2020-10-14 22:15:59,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:15:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:59,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:59,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:59,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-14 22:15:59,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:59,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-10-14 22:15:59,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:59,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:59,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:15:59,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:15:59,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 22:15:59,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:16:00,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:00,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:00,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:00,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:00,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:00,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 22:16:00,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:00,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:00,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:00,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:00,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:16:00,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:00,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:16:00,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1775305782] [2020-10-14 22:16:00,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:16:00,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 22:16:00,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303446750] [2020-10-14 22:16:00,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:16:00,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:00,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:16:00,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:16:00,135 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 5 states. [2020-10-14 22:16:05,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:05,678 INFO L93 Difference]: Finished difference Result 1515 states and 2848 transitions. [2020-10-14 22:16:05,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:16:05,681 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-10-14 22:16:05,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:05,721 INFO L225 Difference]: With dead ends: 1515 [2020-10-14 22:16:05,721 INFO L226 Difference]: Without dead ends: 1038 [2020-10-14 22:16:05,734 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:16:05,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2020-10-14 22:16:05,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1031. [2020-10-14 22:16:05,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2020-10-14 22:16:05,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1642 transitions. [2020-10-14 22:16:05,863 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1642 transitions. Word has length 54 [2020-10-14 22:16:05,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:05,863 INFO L479 AbstractCegarLoop]: Abstraction has 1031 states and 1642 transitions. [2020-10-14 22:16:05,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:16:05,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1642 transitions. [2020-10-14 22:16:05,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-14 22:16:05,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:05,882 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:16:05,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:16:05,883 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:05,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:05,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1924739485, now seen corresponding path program 1 times [2020-10-14 22:16:05,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:05,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1888734564] [2020-10-14 22:16:05,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:05,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:06,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:06,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:06,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:06,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:10,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:10,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:10,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:16:10,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 22:16:10,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 22:16:10,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:10,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:10,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:16:10,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:16:10,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:16:10,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:11,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:11,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:11,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:11,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:11,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:11,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:16:11,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:11,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:11,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:11,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:11,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:16:11,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:11,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:11,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:11,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:11,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:11,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 22:16:11,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:16:11,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-14 22:16:11,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:11,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:11,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:11,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:11,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 22:16:11,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:11,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 22:16:11,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:11,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:11,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:11,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 22:16:11,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:11,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-14 22:16:11,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:11,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:11,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:11,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:11,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 22:16:11,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:11,618 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 163 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 22:16:11,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1888734564] [2020-10-14 22:16:11,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:16:11,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:16:11,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979326120] [2020-10-14 22:16:11,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:16:11,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:11,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:16:11,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:16:11,623 INFO L87 Difference]: Start difference. First operand 1031 states and 1642 transitions. Second operand 7 states. [2020-10-14 22:16:15,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:15,904 INFO L93 Difference]: Finished difference Result 2769 states and 4527 transitions. [2020-10-14 22:16:15,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:16:15,905 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 236 [2020-10-14 22:16:15,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:15,919 INFO L225 Difference]: With dead ends: 2769 [2020-10-14 22:16:15,919 INFO L226 Difference]: Without dead ends: 1744 [2020-10-14 22:16:15,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:16:15,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2020-10-14 22:16:15,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1727. [2020-10-14 22:16:15,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1727 states. [2020-10-14 22:16:16,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 2598 transitions. [2020-10-14 22:16:16,003 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 2598 transitions. Word has length 236 [2020-10-14 22:16:16,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:16,007 INFO L479 AbstractCegarLoop]: Abstraction has 1727 states and 2598 transitions. [2020-10-14 22:16:16,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:16:16,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 2598 transitions. [2020-10-14 22:16:16,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-10-14 22:16:16,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:16,017 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:16:16,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:16:16,018 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:16,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:16,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1212618131, now seen corresponding path program 1 times [2020-10-14 22:16:16,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:16,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [449683575] [2020-10-14 22:16:16,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:16,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:16,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:16,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:19,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:21,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:21,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-10-14 22:16:21,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:16:21,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 22:16:21,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:21,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:21,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:21,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-14 22:16:21,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:16:21,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:21,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:21,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:21,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:21,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:21,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:21,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:21,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:16:21,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:21,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:21,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:21,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:21,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:21,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:21,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:21,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:21,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:16:21,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:21,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 22:16:21,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:21,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:21,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:21,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:21,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:16:21,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:21,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 22:16:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:21,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:21,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:21,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 22:16:21,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:21,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-14 22:16:21,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:21,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:21,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:21,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:21,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 22:16:21,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 22:16:21,578 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 198 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 22:16:21,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [449683575] [2020-10-14 22:16:21,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:16:21,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:16:21,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380065927] [2020-10-14 22:16:21,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:16:21,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:21,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:16:21,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:16:21,581 INFO L87 Difference]: Start difference. First operand 1727 states and 2598 transitions. Second operand 7 states. [2020-10-14 22:16:26,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:26,427 INFO L93 Difference]: Finished difference Result 4187 states and 6332 transitions. [2020-10-14 22:16:26,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:16:26,428 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 276 [2020-10-14 22:16:26,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:26,454 INFO L225 Difference]: With dead ends: 4187 [2020-10-14 22:16:26,454 INFO L226 Difference]: Without dead ends: 2109 [2020-10-14 22:16:26,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:16:26,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2109 states. [2020-10-14 22:16:26,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2109 to 2077. [2020-10-14 22:16:26,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2077 states. [2020-10-14 22:16:26,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 2402 transitions. [2020-10-14 22:16:26,539 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 2402 transitions. Word has length 276 [2020-10-14 22:16:26,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:26,541 INFO L479 AbstractCegarLoop]: Abstraction has 2077 states and 2402 transitions. [2020-10-14 22:16:26,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:16:26,542 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 2402 transitions. [2020-10-14 22:16:26,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-10-14 22:16:26,546 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:26,547 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:16:26,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:16:26,547 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:26,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:26,548 INFO L82 PathProgramCache]: Analyzing trace with hash -212534524, now seen corresponding path program 1 times [2020-10-14 22:16:26,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:26,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [177909758] [2020-10-14 22:16:26,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:26,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:26,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:27,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:29,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:30,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:30,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 291 [2020-10-14 22:16:30,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:16:30,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3955 [2020-10-14 22:16:30,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:30,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:30,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:16:30,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-14 22:16:30,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 22:16:30,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:30,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:30,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:30,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:30,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:30,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:30,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:16:30,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:30,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:30,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:30,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:30,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:30,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:30,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:30,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:30,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:30,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:16:30,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:30,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 22:16:30,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:30,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:30,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:30,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:30,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:16:30,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:30,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 22:16:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:30,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:30,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:30,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:30,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:16:30,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:16:30,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-14 22:16:30,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:30,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:30,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:30,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:30,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 22:16:30,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:31,086 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 92 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 22:16:31,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [177909758] [2020-10-14 22:16:31,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:16:31,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:16:31,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396181174] [2020-10-14 22:16:31,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:16:31,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:31,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:16:31,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:16:31,089 INFO L87 Difference]: Start difference. First operand 2077 states and 2402 transitions. Second operand 5 states. [2020-10-14 22:16:33,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:33,742 INFO L93 Difference]: Finished difference Result 4159 states and 4816 transitions. [2020-10-14 22:16:33,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:16:33,743 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 279 [2020-10-14 22:16:33,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:33,754 INFO L225 Difference]: With dead ends: 4159 [2020-10-14 22:16:33,755 INFO L226 Difference]: Without dead ends: 2088 [2020-10-14 22:16:33,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:16:33,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2020-10-14 22:16:33,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 2077. [2020-10-14 22:16:33,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2077 states. [2020-10-14 22:16:33,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 2327 transitions. [2020-10-14 22:16:33,812 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 2327 transitions. Word has length 279 [2020-10-14 22:16:33,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:33,813 INFO L479 AbstractCegarLoop]: Abstraction has 2077 states and 2327 transitions. [2020-10-14 22:16:33,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:16:33,814 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 2327 transitions. [2020-10-14 22:16:33,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2020-10-14 22:16:33,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:33,821 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:16:33,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:16:33,822 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:33,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:33,822 INFO L82 PathProgramCache]: Analyzing trace with hash 869653022, now seen corresponding path program 1 times [2020-10-14 22:16:33,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:33,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765498376] [2020-10-14 22:16:33,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:33,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:33,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:33,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:34,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:37,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:38,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:38,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:38,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 400 [2020-10-14 22:16:38,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:16:38,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-14 22:16:38,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:38,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:38,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:38,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 237 [2020-10-14 22:16:38,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:16:38,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-14 22:16:39,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:39,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:39,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:39,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:39,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:39,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:16:39,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:39,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:39,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:39,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:39,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:39,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:39,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:39,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:39,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:39,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:16:39,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:39,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:16:39,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:39,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:39,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:39,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:39,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:39,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:39,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 22:16:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:39,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:39,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:39,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:16:39,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:39,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 22:16:39,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:39,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:39,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:39,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:39,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 22:16:39,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:39,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-10-14 22:16:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:39,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:39,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:39,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 22:16:39,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:39,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-14 22:16:39,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:39,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:39,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:39,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:39,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 22:16:39,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:39,807 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 354 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-10-14 22:16:39,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765498376] [2020-10-14 22:16:39,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:16:39,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:16:39,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138663301] [2020-10-14 22:16:39,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:16:39,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:39,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:16:39,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:16:39,810 INFO L87 Difference]: Start difference. First operand 2077 states and 2327 transitions. Second operand 7 states. [2020-10-14 22:16:43,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:43,049 INFO L93 Difference]: Finished difference Result 4189 states and 4705 transitions. [2020-10-14 22:16:43,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:16:43,049 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 386 [2020-10-14 22:16:43,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:43,061 INFO L225 Difference]: With dead ends: 4189 [2020-10-14 22:16:43,061 INFO L226 Difference]: Without dead ends: 2118 [2020-10-14 22:16:43,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:16:43,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2020-10-14 22:16:43,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 1741. [2020-10-14 22:16:43,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1741 states. [2020-10-14 22:16:43,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1741 states to 1741 states and 1873 transitions. [2020-10-14 22:16:43,110 INFO L78 Accepts]: Start accepts. Automaton has 1741 states and 1873 transitions. Word has length 386 [2020-10-14 22:16:43,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:43,111 INFO L479 AbstractCegarLoop]: Abstraction has 1741 states and 1873 transitions. [2020-10-14 22:16:43,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:16:43,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states and 1873 transitions. [2020-10-14 22:16:43,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2020-10-14 22:16:43,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:43,119 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:16:43,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:16:43,120 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:43,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:43,120 INFO L82 PathProgramCache]: Analyzing trace with hash 2007214775, now seen corresponding path program 1 times [2020-10-14 22:16:43,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:43,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923213957] [2020-10-14 22:16:43,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:43,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:43,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:43,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:47,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:47,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:48,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:48,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 417 [2020-10-14 22:16:48,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:16:48,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 22:16:48,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:48,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:48,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:48,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 237 [2020-10-14 22:16:48,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 22:16:48,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:48,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:48,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:48,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:48,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:48,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:48,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:16:48,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:48,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:48,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:48,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:48,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:48,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:48,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:48,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:48,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:48,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:48,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:16:48,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:48,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:16:48,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:48,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:48,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:48,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:48,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:48,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:48,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 22:16:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:48,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:48,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:48,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:16:48,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:48,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 22:16:48,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:48,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:48,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:48,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:48,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 22:16:48,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:48,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-10-14 22:16:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:48,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:48,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:48,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-14 22:16:48,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:48,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-14 22:16:48,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:48,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:48,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:48,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:48,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 22:16:48,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:48,747 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 365 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-10-14 22:16:48,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923213957] [2020-10-14 22:16:48,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:16:48,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:16:48,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77196184] [2020-10-14 22:16:48,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:16:48,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:48,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:16:48,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:16:48,749 INFO L87 Difference]: Start difference. First operand 1741 states and 1873 transitions. Second operand 7 states. [2020-10-14 22:16:51,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:51,595 INFO L93 Difference]: Finished difference Result 5256 states and 5714 transitions. [2020-10-14 22:16:51,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:16:51,597 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 403 [2020-10-14 22:16:51,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:51,612 INFO L225 Difference]: With dead ends: 5256 [2020-10-14 22:16:51,612 INFO L226 Difference]: Without dead ends: 3162 [2020-10-14 22:16:51,618 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:16:51,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states. [2020-10-14 22:16:51,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 3140. [2020-10-14 22:16:51,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3140 states. [2020-10-14 22:16:51,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 3351 transitions. [2020-10-14 22:16:51,692 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 3351 transitions. Word has length 403 [2020-10-14 22:16:51,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:51,692 INFO L479 AbstractCegarLoop]: Abstraction has 3140 states and 3351 transitions. [2020-10-14 22:16:51,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:16:51,693 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 3351 transitions. [2020-10-14 22:16:51,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2020-10-14 22:16:51,752 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:51,753 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:16:51,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:16:51,753 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:51,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:51,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1676641112, now seen corresponding path program 1 times [2020-10-14 22:16:51,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:51,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1790819309] [2020-10-14 22:16:51,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:51,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:51,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:52,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:53,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:56,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:56,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 613 [2020-10-14 22:16:56,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:16:56,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 22:16:56,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:56,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:56,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:16:56,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:16:56,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 223 [2020-10-14 22:16:56,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:56,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:56,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:56,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:56,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:56,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:56,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:16:56,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:56,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:56,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:56,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:56,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:16:56,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:56,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:56,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:56,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:56,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:56,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:16:56,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:16:56,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 22:16:56,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:56,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:56,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:56,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:56,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 22:16:56,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:57,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 22:16:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:57,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:57,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:57,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:16:57,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:57,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 22:16:57,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:57,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:57,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:57,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:57,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:16:57,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:57,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-14 22:16:57,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:57,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:57,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:57,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:16:57,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:57,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:16:57,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:57,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:57,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:57,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:16:57,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:57,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:57,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2020-10-14 22:16:57,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:57,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:57,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:57,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-14 22:16:57,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:57,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-14 22:16:57,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:57,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:57,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:57,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-14 22:16:57,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:57,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:57,646 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 290 proven. 221 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-14 22:16:57,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1790819309] [2020-10-14 22:16:57,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:16:57,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:16:57,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154163841] [2020-10-14 22:16:57,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:16:57,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:57,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:16:57,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:16:57,650 INFO L87 Difference]: Start difference. First operand 3140 states and 3351 transitions. Second operand 7 states. [2020-10-14 22:17:00,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:00,147 INFO L93 Difference]: Finished difference Result 6980 states and 7491 transitions. [2020-10-14 22:17:00,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:17:00,148 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 597 [2020-10-14 22:17:00,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:00,164 INFO L225 Difference]: With dead ends: 6980 [2020-10-14 22:17:00,164 INFO L226 Difference]: Without dead ends: 3846 [2020-10-14 22:17:00,171 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 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 22:17:00,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3846 states. [2020-10-14 22:17:00,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3846 to 3822. [2020-10-14 22:17:00,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3822 states. [2020-10-14 22:17:00,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3822 states to 3822 states and 4064 transitions. [2020-10-14 22:17:00,251 INFO L78 Accepts]: Start accepts. Automaton has 3822 states and 4064 transitions. Word has length 597 [2020-10-14 22:17:00,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:00,252 INFO L479 AbstractCegarLoop]: Abstraction has 3822 states and 4064 transitions. [2020-10-14 22:17:00,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:17:00,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3822 states and 4064 transitions. [2020-10-14 22:17:00,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 727 [2020-10-14 22:17:00,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:00,264 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:17:00,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:17:00,264 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:00,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:00,265 INFO L82 PathProgramCache]: Analyzing trace with hash 254131650, now seen corresponding path program 1 times [2020-10-14 22:17:00,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:00,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [246132817] [2020-10-14 22:17:00,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:00,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:00,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:00,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:00,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:00,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:05,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:05,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 744 [2020-10-14 22:17:05,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:17:05,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 22:17:05,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:05,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:05,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:05,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 241 [2020-10-14 22:17:05,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 22:17:05,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:05,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:05,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:05,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:05,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:05,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:05,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:17:05,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:05,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:05,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:05,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:05,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:05,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:05,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:05,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:05,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:05,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:17:05,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:05,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:17:05,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:05,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:05,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:05,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:05,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:05,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:05,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 22:17:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:05,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:05,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:05,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:17:05,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:05,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 22:17:05,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:05,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:05,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:05,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:05,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 22:17:05,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:05,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-14 22:17:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:05,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:05,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:05,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:17:05,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:05,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 22:17:05,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:05,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:05,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:05,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:05,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:17:05,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:05,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 22:17:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:05,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:05,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:05,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:17:05,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:05,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:17:05,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:05,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:05,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:05,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:17:05,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:05,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:05,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-14 22:17:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:05,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:05,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:05,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-14 22:17:05,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:05,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 22:17:05,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:05,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:05,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:05,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-14 22:17:05,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:05,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:06,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 465 proven. 221 refuted. 0 times theorem prover too weak. 638 trivial. 0 not checked. [2020-10-14 22:17:06,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [246132817] [2020-10-14 22:17:06,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:06,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:17:06,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328166524] [2020-10-14 22:17:06,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:17:06,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:06,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:17:06,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:17:06,151 INFO L87 Difference]: Start difference. First operand 3822 states and 4064 transitions. Second operand 7 states. [2020-10-14 22:17:08,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:08,851 INFO L93 Difference]: Finished difference Result 9361 states and 10008 transitions. [2020-10-14 22:17:08,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:17:08,852 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 726 [2020-10-14 22:17:08,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:08,872 INFO L225 Difference]: With dead ends: 9361 [2020-10-14 22:17:08,872 INFO L226 Difference]: Without dead ends: 5204 [2020-10-14 22:17:08,882 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 22:17:08,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5204 states. [2020-10-14 22:17:08,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5204 to 5184. [2020-10-14 22:17:08,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5184 states. [2020-10-14 22:17:08,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5184 states to 5184 states and 5519 transitions. [2020-10-14 22:17:08,988 INFO L78 Accepts]: Start accepts. Automaton has 5184 states and 5519 transitions. Word has length 726 [2020-10-14 22:17:08,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:08,989 INFO L479 AbstractCegarLoop]: Abstraction has 5184 states and 5519 transitions. [2020-10-14 22:17:08,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:17:08,989 INFO L276 IsEmpty]: Start isEmpty. Operand 5184 states and 5519 transitions. [2020-10-14 22:17:09,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1130 [2020-10-14 22:17:09,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:09,018 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:17:09,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:17:09,019 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:09,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:09,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1713854107, now seen corresponding path program 1 times [2020-10-14 22:17:09,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:09,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [706022222] [2020-10-14 22:17:09,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:09,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:09,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:09,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:09,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:10,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:14,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:14,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1151 [2020-10-14 22:17:14,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:17:14,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 22:17:14,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:14,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:14,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:17:14,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:17:14,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 22:17:14,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:14,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:14,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:14,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:14,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:14,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:14,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:14,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:17:14,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:14,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:14,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:14,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:14,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:17:14,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:14,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:14,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:14,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:14,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:17:14,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:14,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-14 22:17:14,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:14,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:14,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:14,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:14,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:17:14,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:14,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 22:17:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:14,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:14,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:14,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:17:14,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:14,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 22:17:14,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:14,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:14,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:14,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:17:14,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:14,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:14,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 22:17:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:14,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:14,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:14,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:17:14,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:14,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:17:14,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:14,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:14,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:14,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:17:14,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:14,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:14,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2020-10-14 22:17:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:14,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:14,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:14,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:17:14,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:14,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:17:14,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:14,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:14,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:14,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:17:14,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:14,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:14,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2020-10-14 22:17:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:14,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:14,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:14,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:17:14,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:14,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:17:14,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:14,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:14,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:14,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:17:14,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:14,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:14,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 693 [2020-10-14 22:17:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:14,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:14,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:14,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:17:14,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:14,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 22:17:14,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:14,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:14,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:14,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:17:14,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:14,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:15,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 908 [2020-10-14 22:17:15,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:15,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:15,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:15,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 22:17:15,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:15,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:17:15,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:15,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:15,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:15,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 22:17:15,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:15,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:15,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2744 backedges. 329 proven. 796 refuted. 0 times theorem prover too weak. 1619 trivial. 0 not checked. [2020-10-14 22:17:15,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [706022222] [2020-10-14 22:17:15,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:15,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:17:15,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080154903] [2020-10-14 22:17:15,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:17:15,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:15,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:17:15,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:17:15,716 INFO L87 Difference]: Start difference. First operand 5184 states and 5519 transitions. Second operand 7 states. [2020-10-14 22:17:18,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:18,482 INFO L93 Difference]: Finished difference Result 11078 states and 11797 transitions. [2020-10-14 22:17:18,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:17:18,490 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1129 [2020-10-14 22:17:18,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:18,511 INFO L225 Difference]: With dead ends: 11078 [2020-10-14 22:17:18,512 INFO L226 Difference]: Without dead ends: 5900 [2020-10-14 22:17:18,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 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 22:17:18,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5900 states. [2020-10-14 22:17:18,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5900 to 5866. [2020-10-14 22:17:18,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5866 states. [2020-10-14 22:17:18,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5866 states to 5866 states and 6221 transitions. [2020-10-14 22:17:18,626 INFO L78 Accepts]: Start accepts. Automaton has 5866 states and 6221 transitions. Word has length 1129 [2020-10-14 22:17:18,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:18,627 INFO L479 AbstractCegarLoop]: Abstraction has 5866 states and 6221 transitions. [2020-10-14 22:17:18,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:17:18,627 INFO L276 IsEmpty]: Start isEmpty. Operand 5866 states and 6221 transitions. [2020-10-14 22:17:18,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1377 [2020-10-14 22:17:18,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:18,660 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:17:18,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:17:18,660 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:18,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:18,661 INFO L82 PathProgramCache]: Analyzing trace with hash -2013637973, now seen corresponding path program 1 times [2020-10-14 22:17:18,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:18,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388539989] [2020-10-14 22:17:18,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:18,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:19,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:19,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:19,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:19,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:20,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:23,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:23,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1400 [2020-10-14 22:17:23,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:17:23,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-14 22:17:23,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:23,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:23,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:17:23,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:17:23,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-14 22:17:23,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:24,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:24,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:24,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:24,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:24,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:24,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:17:24,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:24,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:24,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:24,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:24,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:17:24,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:24,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:24,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:24,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:24,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:24,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:17:24,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:17:24,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-10-14 22:17:24,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:24,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:24,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:24,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:24,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-14 22:17:24,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:24,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:17:24,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:24,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:24,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:24,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:17:24,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:24,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-14 22:17:24,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:24,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:24,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:24,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:24,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:17:24,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:24,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-14 22:17:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:24,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:25,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:25,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:17:25,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:25,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 22:17:25,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:25,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:25,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:25,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:17:25,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:25,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:25,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-14 22:17:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:25,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:25,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:25,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:17:25,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:25,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:17:25,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:25,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:25,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:25,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:17:25,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:25,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:25,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 688 [2020-10-14 22:17:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:25,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:25,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:25,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:17:25,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:25,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:17:25,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:25,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:25,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:25,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:17:25,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:25,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:25,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 830 [2020-10-14 22:17:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:25,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:25,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:25,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:17:25,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:25,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:17:25,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:25,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:25,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:25,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:17:25,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:25,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:25,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 940 [2020-10-14 22:17:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:25,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:25,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:25,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:17:25,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:25,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 22:17:25,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:25,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:25,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:25,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:17:25,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:25,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:25,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1155 [2020-10-14 22:17:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:25,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:25,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:25,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 22:17:25,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:25,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-14 22:17:25,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:25,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:25,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:25,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 22:17:25,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:25,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:27,196 INFO L134 CoverageAnalysis]: Checked inductivity of 3864 backedges. 641 proven. 810 refuted. 0 times theorem prover too weak. 2413 trivial. 0 not checked. [2020-10-14 22:17:27,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388539989] [2020-10-14 22:17:27,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:27,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:17:27,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359322402] [2020-10-14 22:17:27,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:17:27,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:27,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:17:27,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:17:27,199 INFO L87 Difference]: Start difference. First operand 5866 states and 6221 transitions. Second operand 7 states. [2020-10-14 22:17:29,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:29,706 INFO L93 Difference]: Finished difference Result 11062 states and 11757 transitions. [2020-10-14 22:17:29,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:17:29,708 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1376 [2020-10-14 22:17:29,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:29,728 INFO L225 Difference]: With dead ends: 11062 [2020-10-14 22:17:29,728 INFO L226 Difference]: Without dead ends: 5878 [2020-10-14 22:17:29,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:17:29,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2020-10-14 22:17:29,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5866. [2020-10-14 22:17:29,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5866 states. [2020-10-14 22:17:29,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5866 states to 5866 states and 6219 transitions. [2020-10-14 22:17:29,834 INFO L78 Accepts]: Start accepts. Automaton has 5866 states and 6219 transitions. Word has length 1376 [2020-10-14 22:17:29,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:29,836 INFO L479 AbstractCegarLoop]: Abstraction has 5866 states and 6219 transitions. [2020-10-14 22:17:29,836 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:17:29,836 INFO L276 IsEmpty]: Start isEmpty. Operand 5866 states and 6219 transitions. [2020-10-14 22:17:29,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1411 [2020-10-14 22:17:29,868 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:29,869 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:17:29,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:17:29,869 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:29,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:29,870 INFO L82 PathProgramCache]: Analyzing trace with hash -28998812, now seen corresponding path program 1 times [2020-10-14 22:17:29,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:29,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1890181305] [2020-10-14 22:17:29,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:30,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:30,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:30,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:31,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:35,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:35,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1436 [2020-10-14 22:17:35,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:17:35,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5082 [2020-10-14 22:17:35,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:35,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:35,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:35,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 22:17:35,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 22:17:35,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:35,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:35,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:35,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:35,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:35,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:35,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:35,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:17:35,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:35,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:35,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:35,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:35,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:35,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:35,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:35,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:35,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:35,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:35,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:17:35,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:35,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-14 22:17:35,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:35,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:35,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:35,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:35,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 22:17:35,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:35,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:17:35,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:35,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:35,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:35,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:17:35,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:35,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-14 22:17:35,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:35,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:35,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:35,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:35,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 22:17:35,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:36,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:17:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:36,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:36,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:36,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:17:36,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:36,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 22:17:36,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:36,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:36,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:36,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-14 22:17:36,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:36,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:36,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:17:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:36,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:36,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:36,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:17:36,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:36,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:17:36,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:36,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:36,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:36,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:17:36,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:36,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:36,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-14 22:17:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:36,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:36,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:36,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:17:36,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:36,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 22:17:36,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:36,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:36,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:36,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:17:36,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:36,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:36,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2020-10-14 22:17:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:36,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:36,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:36,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:17:36,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:36,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 22:17:36,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:36,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:36,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:36,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:17:36,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:36,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:36,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 864 [2020-10-14 22:17:36,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:36,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:36,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:36,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:17:36,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:36,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 22:17:36,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:36,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:36,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:36,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:17:36,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:36,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:36,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 974 [2020-10-14 22:17:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:36,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:36,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:36,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:17:36,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:36,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 22:17:36,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:36,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:36,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:36,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:17:36,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:36,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:36,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1189 [2020-10-14 22:17:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:36,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:36,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:36,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 22:17:36,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:36,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 22:17:36,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:36,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:36,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:36,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 22:17:36,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:36,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:38,750 INFO L134 CoverageAnalysis]: Checked inductivity of 4699 backedges. 610 proven. 870 refuted. 0 times theorem prover too weak. 3219 trivial. 0 not checked. [2020-10-14 22:17:38,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1890181305] [2020-10-14 22:17:38,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:38,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:17:38,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117997584] [2020-10-14 22:17:38,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:17:38,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:38,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:17:38,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:17:38,753 INFO L87 Difference]: Start difference. First operand 5866 states and 6219 transitions. Second operand 7 states. [2020-10-14 22:17:41,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:41,947 INFO L93 Difference]: Finished difference Result 12430 states and 13232 transitions. [2020-10-14 22:17:41,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:17:41,953 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1410 [2020-10-14 22:17:41,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:41,979 INFO L225 Difference]: With dead ends: 12430 [2020-10-14 22:17:41,979 INFO L226 Difference]: Without dead ends: 6907 [2020-10-14 22:17:41,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:17:41,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6907 states. [2020-10-14 22:17:42,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6907 to 6548. [2020-10-14 22:17:42,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6548 states. [2020-10-14 22:17:42,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6548 states to 6548 states and 6913 transitions. [2020-10-14 22:17:42,091 INFO L78 Accepts]: Start accepts. Automaton has 6548 states and 6913 transitions. Word has length 1410 [2020-10-14 22:17:42,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:42,093 INFO L479 AbstractCegarLoop]: Abstraction has 6548 states and 6913 transitions. [2020-10-14 22:17:42,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:17:42,093 INFO L276 IsEmpty]: Start isEmpty. Operand 6548 states and 6913 transitions. [2020-10-14 22:17:42,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1472 [2020-10-14 22:17:42,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:42,124 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 22:17:42,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:17:42,125 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:42,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:42,125 INFO L82 PathProgramCache]: Analyzing trace with hash 573497835, now seen corresponding path program 1 times [2020-10-14 22:17:42,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:42,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [398558699] [2020-10-14 22:17:42,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:42,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:42,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:42,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:43,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:43,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:47,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:47,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1497 [2020-10-14 22:17:47,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:17:47,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-14 22:17:47,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:47,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:47,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:47,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 474 [2020-10-14 22:17:47,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:17:47,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:47,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:47,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:47,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:47,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:47,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:47,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:17:47,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:47,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:47,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:47,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:47,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:47,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:47,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:47,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:47,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:47,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:17:47,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:47,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:17:47,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:47,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:47,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:47,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:47,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:47,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:47,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:17:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:47,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:47,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:47,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:17:47,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:47,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 22:17:47,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:47,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:47,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:47,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:47,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 22:17:47,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:47,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:17:47,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:47,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:47,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:47,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:17:47,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:47,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-14 22:17:47,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:47,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:47,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:47,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:47,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:17:47,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:48,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:17:48,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:48,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:48,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:48,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:17:48,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:48,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:17:48,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:48,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:48,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:48,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:17:48,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:48,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:48,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-14 22:17:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:48,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:48,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:48,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:17:48,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:48,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 22:17:48,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:48,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:48,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:48,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:17:48,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:48,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:48,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 783 [2020-10-14 22:17:48,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:48,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:48,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:48,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:17:48,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:48,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 22:17:48,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:48,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:48,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:48,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:17:48,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:48,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:48,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 925 [2020-10-14 22:17:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:48,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:48,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:48,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:17:48,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:48,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:17:48,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:48,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:48,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:48,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:17:48,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:48,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:48,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1035 [2020-10-14 22:17:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:48,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:48,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:48,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:17:48,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:48,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 22:17:48,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:48,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:17:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:48,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:48,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1250 [2020-10-14 22:17:48,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:48,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:48,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:48,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 22:17:48,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:48,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 22:17:48,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:48,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:48,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:48,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 22:17:48,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:48,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:50,008 INFO L134 CoverageAnalysis]: Checked inductivity of 4826 backedges. 728 proven. 665 refuted. 0 times theorem prover too weak. 3433 trivial. 0 not checked. [2020-10-14 22:17:50,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [398558699] [2020-10-14 22:17:50,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:50,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:17:50,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037750888] [2020-10-14 22:17:50,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:17:50,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:50,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:17:50,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:17:50,012 INFO L87 Difference]: Start difference. First operand 6548 states and 6913 transitions. Second operand 7 states. [2020-10-14 22:17:53,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:53,101 INFO L93 Difference]: Finished difference Result 13108 states and 13872 transitions. [2020-10-14 22:17:53,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:17:53,101 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1471 [2020-10-14 22:17:53,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:53,121 INFO L225 Difference]: With dead ends: 13108 [2020-10-14 22:17:53,121 INFO L226 Difference]: Without dead ends: 6905 [2020-10-14 22:17:53,132 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:17:53,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6905 states. [2020-10-14 22:17:53,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6905 to 6889. [2020-10-14 22:17:53,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6889 states. [2020-10-14 22:17:53,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6889 states to 6889 states and 7261 transitions. [2020-10-14 22:17:53,237 INFO L78 Accepts]: Start accepts. Automaton has 6889 states and 7261 transitions. Word has length 1471 [2020-10-14 22:17:53,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:53,238 INFO L479 AbstractCegarLoop]: Abstraction has 6889 states and 7261 transitions. [2020-10-14 22:17:53,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:17:53,238 INFO L276 IsEmpty]: Start isEmpty. Operand 6889 states and 7261 transitions. [2020-10-14 22:17:53,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1474 [2020-10-14 22:17:53,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:53,280 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:17:53,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:17:53,280 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:53,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:53,281 INFO L82 PathProgramCache]: Analyzing trace with hash 490077583, now seen corresponding path program 1 times [2020-10-14 22:17:53,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:53,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [253255675] [2020-10-14 22:17:53,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:53,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:53,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:54,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:54,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:54,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:58,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:58,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1499 [2020-10-14 22:17:58,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:17:58,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-14 22:17:58,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:58,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:58,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:58,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 795 [2020-10-14 22:17:58,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 22:17:58,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:58,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:58,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:58,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:58,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:58,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:58,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:17:58,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:58,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:58,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:58,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:58,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:58,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:58,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:58,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:58,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:58,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:17:58,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:58,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:17:58,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:58,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:58,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:58,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:58,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:58,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:58,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:17:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:58,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:58,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:58,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:17:58,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:58,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:17:58,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:58,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:58,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:58,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:58,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:58,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:58,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:17:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:58,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:58,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:58,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:17:58,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:58,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 22:17:58,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:58,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:58,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:58,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:58,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:58,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:58,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-14 22:17:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:59,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:59,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:59,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:17:59,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:59,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 22:17:59,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:59,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:59,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:59,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:59,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:59,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:59,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 670 [2020-10-14 22:17:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:59,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:59,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:59,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:17:59,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:59,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 22:17:59,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:59,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:59,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:59,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:59,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:17:59,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:59,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 785 [2020-10-14 22:17:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:59,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:59,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:59,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:17:59,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:59,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-14 22:17:59,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:59,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:59,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:59,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:59,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 22:17:59,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:59,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 927 [2020-10-14 22:17:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:59,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:59,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:59,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:17:59,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:59,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-14 22:17:59,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:59,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:59,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:59,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:17:59,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:59,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:59,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2020-10-14 22:17:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:59,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:59,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:59,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:17:59,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:59,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 22:17:59,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:59,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:59,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:59,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:17:59,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:59,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:59,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1252 [2020-10-14 22:17:59,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:59,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:59,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:59,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 22:17:59,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:59,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:17:59,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:59,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 22:17:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:59,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:00,636 INFO L134 CoverageAnalysis]: Checked inductivity of 4828 backedges. 1085 proven. 387 refuted. 0 times theorem prover too weak. 3356 trivial. 0 not checked. [2020-10-14 22:18:00,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [253255675] [2020-10-14 22:18:00,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:00,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:18:00,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510656823] [2020-10-14 22:18:00,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:18:00,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:00,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:18:00,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:18:00,639 INFO L87 Difference]: Start difference. First operand 6889 states and 7261 transitions. Second operand 8 states. [2020-10-14 22:18:05,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:05,370 INFO L93 Difference]: Finished difference Result 14476 states and 15320 transitions. [2020-10-14 22:18:05,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 22:18:05,371 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1473 [2020-10-14 22:18:05,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:05,394 INFO L225 Difference]: With dead ends: 14476 [2020-10-14 22:18:05,394 INFO L226 Difference]: Without dead ends: 7932 [2020-10-14 22:18:05,413 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 22:18:05,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7932 states. [2020-10-14 22:18:05,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7932 to 7916. [2020-10-14 22:18:05,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7916 states. [2020-10-14 22:18:05,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7916 states to 7916 states and 8269 transitions. [2020-10-14 22:18:05,527 INFO L78 Accepts]: Start accepts. Automaton has 7916 states and 8269 transitions. Word has length 1473 [2020-10-14 22:18:05,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:05,528 INFO L479 AbstractCegarLoop]: Abstraction has 7916 states and 8269 transitions. [2020-10-14 22:18:05,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:18:05,529 INFO L276 IsEmpty]: Start isEmpty. Operand 7916 states and 8269 transitions. [2020-10-14 22:18:05,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1503 [2020-10-14 22:18:05,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:05,567 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:18:05,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:18:05,568 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:05,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:05,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1919087670, now seen corresponding path program 1 times [2020-10-14 22:18:05,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:05,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1458732947] [2020-10-14 22:18:05,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:05,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:06,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:06,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:06,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:10,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:10,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1528 [2020-10-14 22:18:10,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:18:10,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 22:18:10,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:10,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:10,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:10,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 476 [2020-10-14 22:18:10,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:18:10,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:10,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:10,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:10,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:10,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:10,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:10,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:18:10,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:10,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:10,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:10,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:10,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:10,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:10,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:10,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:11,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:11,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:18:11,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:11,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:18:11,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:11,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:11,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:11,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:11,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:11,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:11,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:18:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:11,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:11,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:11,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:18:11,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:11,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-14 22:18:11,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:11,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:11,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:11,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:11,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-14 22:18:11,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:11,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:18:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:11,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:11,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:11,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:18:11,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:11,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 22:18:11,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:11,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:11,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:11,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:11,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:18:11,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:11,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-14 22:18:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:11,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:11,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:11,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:18:11,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:11,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:18:11,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:11,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:11,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:11,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:18:11,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:11,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:11,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 670 [2020-10-14 22:18:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:11,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:11,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:11,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:18:11,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:11,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:18:11,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:11,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:11,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:11,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 22:18:11,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:11,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:11,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 814 [2020-10-14 22:18:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:11,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:11,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:11,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:18:11,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:11,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:18:11,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:11,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:11,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:11,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:18:11,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:11,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:11,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 956 [2020-10-14 22:18:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:11,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:11,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:11,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:18:11,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:11,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:18:11,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:11,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:11,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:11,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:18:11,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:11,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:11,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1066 [2020-10-14 22:18:11,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:11,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:11,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:11,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:18:11,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:11,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 22:18:11,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:11,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:11,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:11,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:18:11,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:11,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:11,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1281 [2020-10-14 22:18:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:11,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:11,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:11,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 22:18:11,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:11,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:18:11,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:11,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:11,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:11,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 22:18:11,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:11,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:13,152 INFO L134 CoverageAnalysis]: Checked inductivity of 4985 backedges. 728 proven. 679 refuted. 0 times theorem prover too weak. 3578 trivial. 0 not checked. [2020-10-14 22:18:13,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1458732947] [2020-10-14 22:18:13,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:13,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:18:13,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128212402] [2020-10-14 22:18:13,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:18:13,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:13,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:18:13,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:18:13,155 INFO L87 Difference]: Start difference. First operand 7916 states and 8269 transitions. Second operand 8 states. [2020-10-14 22:18:16,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:16,702 INFO L93 Difference]: Finished difference Result 20587 states and 21691 transitions. [2020-10-14 22:18:16,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:18:16,709 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1502 [2020-10-14 22:18:16,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:16,744 INFO L225 Difference]: With dead ends: 20587 [2020-10-14 22:18:16,744 INFO L226 Difference]: Without dead ends: 13016 [2020-10-14 22:18:16,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:18:16,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13016 states. [2020-10-14 22:18:16,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13016 to 11321. [2020-10-14 22:18:16,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11321 states. [2020-10-14 22:18:16,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11321 states to 11321 states and 11956 transitions. [2020-10-14 22:18:16,951 INFO L78 Accepts]: Start accepts. Automaton has 11321 states and 11956 transitions. Word has length 1502 [2020-10-14 22:18:16,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:16,952 INFO L479 AbstractCegarLoop]: Abstraction has 11321 states and 11956 transitions. [2020-10-14 22:18:16,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:18:16,952 INFO L276 IsEmpty]: Start isEmpty. Operand 11321 states and 11956 transitions. [2020-10-14 22:18:16,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1524 [2020-10-14 22:18:16,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:16,996 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 8, 8, 8, 8, 8, 8, 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, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:18:16,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 22:18:16,996 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:16,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:16,997 INFO L82 PathProgramCache]: Analyzing trace with hash -2087184785, now seen corresponding path program 1 times [2020-10-14 22:18:16,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:16,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349675750] [2020-10-14 22:18:16,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:17,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:17,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:17,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:18,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:18,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:22,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:22,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1549 [2020-10-14 22:18:22,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:18:22,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5078 [2020-10-14 22:18:22,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:22,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:22,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:22,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 359 [2020-10-14 22:18:22,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-14 22:18:22,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:22,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:22,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:22,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:22,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:22,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:22,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:18:22,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:22,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:22,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:22,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:22,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:22,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:22,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:22,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:22,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:22,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:18:22,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:22,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:18:22,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:22,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:22,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:22,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:22,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:22,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:22,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:18:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:22,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:22,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:22,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:18:22,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:22,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:18:22,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:22,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:22,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:22,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:22,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 22:18:22,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:22,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-14 22:18:22,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:22,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:22,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:22,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:18:22,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:22,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-14 22:18:22,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:22,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:22,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:22,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:22,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:18:22,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:23,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 604 [2020-10-14 22:18:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:23,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:23,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:23,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:18:23,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:23,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:18:23,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:23,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:23,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:23,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 22:18:23,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:23,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:23,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 674 [2020-10-14 22:18:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:23,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:23,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:23,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:18:23,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:23,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:18:23,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:23,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:23,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:23,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:18:23,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:23,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:23,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 789 [2020-10-14 22:18:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:23,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:23,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:23,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 22:18:23,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:23,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 22:18:23,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:23,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:23,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:23,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-14 22:18:23,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:23,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:23,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 977 [2020-10-14 22:18:23,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:23,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:23,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:23,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:18:23,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:23,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:18:23,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:23,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:23,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:23,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:18:23,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:23,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:23,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1087 [2020-10-14 22:18:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:23,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:23,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:23,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:18:23,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:23,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 22:18:23,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:23,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:23,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:23,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:18:23,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:23,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:23,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1302 [2020-10-14 22:18:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:23,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:23,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:23,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 22:18:23,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:23,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:18:23,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:23,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:23,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:23,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 22:18:23,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:23,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:24,512 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 817 proven. 857 refuted. 0 times theorem prover too weak. 3185 trivial. 0 not checked. [2020-10-14 22:18:24,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349675750] [2020-10-14 22:18:24,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:24,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:24,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283595028] [2020-10-14 22:18:24,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:24,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:24,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:24,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:24,515 INFO L87 Difference]: Start difference. First operand 11321 states and 11956 transitions. Second operand 7 states. [2020-10-14 22:18:27,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:27,823 INFO L93 Difference]: Finished difference Result 25699 states and 27218 transitions. [2020-10-14 22:18:27,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:18:27,829 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1523 [2020-10-14 22:18:27,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:27,870 INFO L225 Difference]: With dead ends: 25699 [2020-10-14 22:18:27,870 INFO L226 Difference]: Without dead ends: 14723 [2020-10-14 22:18:27,892 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 22:18:27,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14723 states. [2020-10-14 22:18:28,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14723 to 14378. [2020-10-14 22:18:28,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14378 states. [2020-10-14 22:18:28,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14378 states to 14378 states and 15142 transitions. [2020-10-14 22:18:28,113 INFO L78 Accepts]: Start accepts. Automaton has 14378 states and 15142 transitions. Word has length 1523 [2020-10-14 22:18:28,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:28,114 INFO L479 AbstractCegarLoop]: Abstraction has 14378 states and 15142 transitions. [2020-10-14 22:18:28,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:18:28,114 INFO L276 IsEmpty]: Start isEmpty. Operand 14378 states and 15142 transitions. [2020-10-14 22:18:28,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1642 [2020-10-14 22:18:28,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:28,168 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1] [2020-10-14 22:18:28,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 22:18:28,169 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:28,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:28,170 INFO L82 PathProgramCache]: Analyzing trace with hash 476145719, now seen corresponding path program 1 times [2020-10-14 22:18:28,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:28,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1665811734] [2020-10-14 22:18:28,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:28,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:28,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:29,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:29,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:30,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:33,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:33,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1667 [2020-10-14 22:18:33,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:18:33,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-14 22:18:33,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:33,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:33,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:33,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 830 [2020-10-14 22:18:33,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:18:33,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:33,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:33,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:33,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:33,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:33,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:33,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:18:33,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:33,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:33,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:33,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:33,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:33,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:33,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:33,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:33,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:33,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:18:33,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:33,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:18:33,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:33,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:33,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:33,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:33,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:33,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:33,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:18:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:33,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:33,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:33,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:18:33,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:33,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:18:33,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:33,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:33,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:33,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:33,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:33,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:33,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:18:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:33,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:33,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:33,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:18:33,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:33,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:18:33,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:33,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:33,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:33,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:33,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:33,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:33,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 22:18:33,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:33,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:33,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:33,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:18:33,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:33,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 22:18:33,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:33,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:33,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:33,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:33,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:33,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:33,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2020-10-14 22:18:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:33,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:33,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:33,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:18:33,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:33,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:18:33,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:33,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:33,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:33,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:33,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:18:33,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:33,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 820 [2020-10-14 22:18:34,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:34,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:34,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:34,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:18:34,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:34,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-10-14 22:18:34,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:34,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:34,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:34,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:34,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:18:34,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:34,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1093 [2020-10-14 22:18:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:34,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:34,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:34,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:18:34,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:34,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:18:34,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:34,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:34,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:34,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:18:34,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:34,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:34,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1205 [2020-10-14 22:18:34,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:34,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:34,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:34,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:18:34,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:34,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 22:18:34,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:34,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:34,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:34,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:18:34,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:34,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:34,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1420 [2020-10-14 22:18:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:34,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:34,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:34,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 22:18:34,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:34,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 22:18:34,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:34,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:34,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:34,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 22:18:34,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:34,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:36,142 INFO L134 CoverageAnalysis]: Checked inductivity of 5306 backedges. 1300 proven. 495 refuted. 0 times theorem prover too weak. 3511 trivial. 0 not checked. [2020-10-14 22:18:36,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1665811734] [2020-10-14 22:18:36,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:36,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:36,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547240523] [2020-10-14 22:18:36,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:36,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:36,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:36,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:36,146 INFO L87 Difference]: Start difference. First operand 14378 states and 15142 transitions. Second operand 7 states. [2020-10-14 22:18:40,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:40,529 INFO L93 Difference]: Finished difference Result 28756 states and 30287 transitions. [2020-10-14 22:18:40,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:18:40,532 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1641 [2020-10-14 22:18:40,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:40,565 INFO L225 Difference]: With dead ends: 28756 [2020-10-14 22:18:40,565 INFO L226 Difference]: Without dead ends: 14723 [2020-10-14 22:18:40,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:18:40,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14723 states. [2020-10-14 22:18:40,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14723 to 14041. [2020-10-14 22:18:40,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14041 states. [2020-10-14 22:18:40,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14041 states to 14041 states and 14768 transitions. [2020-10-14 22:18:40,772 INFO L78 Accepts]: Start accepts. Automaton has 14041 states and 14768 transitions. Word has length 1641 [2020-10-14 22:18:40,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:40,773 INFO L479 AbstractCegarLoop]: Abstraction has 14041 states and 14768 transitions. [2020-10-14 22:18:40,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:18:40,773 INFO L276 IsEmpty]: Start isEmpty. Operand 14041 states and 14768 transitions. [2020-10-14 22:18:40,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1652 [2020-10-14 22:18:40,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:40,809 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 1, 1] [2020-10-14 22:18:40,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 22:18:40,809 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:40,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:40,810 INFO L82 PathProgramCache]: Analyzing trace with hash 323586264, now seen corresponding path program 1 times [2020-10-14 22:18:40,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:40,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702760493] [2020-10-14 22:18:40,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:41,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:41,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:41,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:42,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:46,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:46,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1675 [2020-10-14 22:18:46,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:18:46,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5086 [2020-10-14 22:18:46,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:46,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:46,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:46,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 838 [2020-10-14 22:18:46,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:18:46,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:46,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:46,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:46,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:46,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:46,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:46,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:18:46,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:46,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:46,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:46,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:46,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:46,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:46,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:46,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:46,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:46,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:18:46,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:46,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:18:46,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:46,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:46,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:46,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:46,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:46,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:46,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:18:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:46,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:46,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:46,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:18:46,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:46,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:18:46,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:46,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:46,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:46,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:46,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:46,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:46,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:18:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:46,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:46,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:46,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:18:46,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:46,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:18:46,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:46,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:46,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:46,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:46,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:46,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:46,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 22:18:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:46,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:46,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:46,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:18:46,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:46,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 22:18:46,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:46,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:46,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:46,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:46,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:18:46,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:46,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 830 [2020-10-14 22:18:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:46,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:46,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:46,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:18:46,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:46,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-14 22:18:46,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:46,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:46,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:46,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:46,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:18:46,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:47,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1103 [2020-10-14 22:18:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:47,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:47,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:47,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:18:47,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:47,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:18:47,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:47,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:47,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:47,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:18:47,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:47,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:47,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1215 [2020-10-14 22:18:47,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:47,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:47,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:47,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:18:47,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:47,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 22:18:47,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:47,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:47,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:47,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:18:47,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:47,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:47,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1430 [2020-10-14 22:18:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:47,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:47,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:47,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 22:18:47,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:47,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:18:47,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:47,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:47,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:47,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 22:18:47,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:47,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:49,007 INFO L134 CoverageAnalysis]: Checked inductivity of 5127 backedges. 1249 proven. 495 refuted. 0 times theorem prover too weak. 3383 trivial. 0 not checked. [2020-10-14 22:18:49,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702760493] [2020-10-14 22:18:49,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:49,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:49,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000153857] [2020-10-14 22:18:49,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:49,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:49,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:49,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:49,010 INFO L87 Difference]: Start difference. First operand 14041 states and 14768 transitions. Second operand 7 states. [2020-10-14 22:18:52,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:52,453 INFO L93 Difference]: Finished difference Result 27747 states and 29203 transitions. [2020-10-14 22:18:52,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:18:52,456 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1651 [2020-10-14 22:18:52,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:52,485 INFO L225 Difference]: With dead ends: 27747 [2020-10-14 22:18:52,485 INFO L226 Difference]: Without dead ends: 14051 [2020-10-14 22:18:52,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:18:52,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14051 states. [2020-10-14 22:18:52,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14051 to 14041. [2020-10-14 22:18:52,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14041 states. [2020-10-14 22:18:52,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14041 states to 14041 states and 14764 transitions. [2020-10-14 22:18:52,693 INFO L78 Accepts]: Start accepts. Automaton has 14041 states and 14764 transitions. Word has length 1651 [2020-10-14 22:18:52,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:52,694 INFO L479 AbstractCegarLoop]: Abstraction has 14041 states and 14764 transitions. [2020-10-14 22:18:52,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:18:52,694 INFO L276 IsEmpty]: Start isEmpty. Operand 14041 states and 14764 transitions. [2020-10-14 22:18:52,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1670 [2020-10-14 22:18:52,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:52,734 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:18:52,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 22:18:52,734 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:52,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:52,735 INFO L82 PathProgramCache]: Analyzing trace with hash 491783121, now seen corresponding path program 1 times [2020-10-14 22:18:52,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:52,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [113774111] [2020-10-14 22:18:52,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:53,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:53,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:53,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:54,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:58,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:58,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1695 [2020-10-14 22:18:58,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:18:58,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5079 [2020-10-14 22:18:58,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:58,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:58,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:18:58,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-14 22:18:58,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 332 [2020-10-14 22:18:58,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:58,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:58,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:58,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:58,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:58,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:58,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:18:58,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:58,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:58,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:58,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:58,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:58,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:58,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:58,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:58,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:58,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:58,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:18:58,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:58,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:18:58,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:58,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:58,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:58,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:58,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:58,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:58,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:18:58,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:58,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:58,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:58,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:18:58,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:58,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:18:58,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:58,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:58,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:58,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:58,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:58,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:58,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:18:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:58,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:58,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:58,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:18:58,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:58,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:18:58,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:58,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:58,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:58,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:58,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:58,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:58,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 22:18:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:58,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:58,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:58,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:18:58,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:58,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:18:58,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:58,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:58,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:58,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:58,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:58,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:58,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 704 [2020-10-14 22:18:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:58,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:58,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:58,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:18:58,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:58,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:18:58,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:58,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:58,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:58,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:58,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:58,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:58,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 848 [2020-10-14 22:18:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:58,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:58,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:58,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:18:58,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:58,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-14 22:18:58,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:58,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-14 22:18:58,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:58,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1121 [2020-10-14 22:18:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:58,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:58,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:59,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:59,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:18:59,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:18:59,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-14 22:18:59,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:59,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:59,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:59,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:59,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 22:18:59,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:59,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-14 22:18:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:59,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:59,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:59,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:18:59,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:59,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-14 22:18:59,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:59,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:59,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:59,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:59,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 22:18:59,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:59,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1448 [2020-10-14 22:18:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:59,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:59,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:59,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 22:18:59,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:59,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 22:18:59,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:59,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:59,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:59,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 22:18:59,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:59,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:01,370 INFO L134 CoverageAnalysis]: Checked inductivity of 5472 backedges. 1618 proven. 178 refuted. 0 times theorem prover too weak. 3676 trivial. 0 not checked. [2020-10-14 22:19:01,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [113774111] [2020-10-14 22:19:01,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:01,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:19:01,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723539811] [2020-10-14 22:19:01,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:01,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:01,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:01,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:01,374 INFO L87 Difference]: Start difference. First operand 14041 states and 14764 transitions. Second operand 7 states. [2020-10-14 22:19:05,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:05,856 INFO L93 Difference]: Finished difference Result 28078 states and 29529 transitions. [2020-10-14 22:19:05,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:19:05,857 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1669 [2020-10-14 22:19:05,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:05,886 INFO L225 Difference]: With dead ends: 28078 [2020-10-14 22:19:05,887 INFO L226 Difference]: Without dead ends: 14382 [2020-10-14 22:19:05,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 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 22:19:05,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14382 states. [2020-10-14 22:19:06,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14382 to 13700. [2020-10-14 22:19:06,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13700 states. [2020-10-14 22:19:06,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13700 states to 13700 states and 14380 transitions. [2020-10-14 22:19:06,070 INFO L78 Accepts]: Start accepts. Automaton has 13700 states and 14380 transitions. Word has length 1669 [2020-10-14 22:19:06,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:06,072 INFO L479 AbstractCegarLoop]: Abstraction has 13700 states and 14380 transitions. [2020-10-14 22:19:06,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:19:06,072 INFO L276 IsEmpty]: Start isEmpty. Operand 13700 states and 14380 transitions. [2020-10-14 22:19:06,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1823 [2020-10-14 22:19:06,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:06,103 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 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, 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] [2020-10-14 22:19:06,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 22:19:06,103 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:06,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:06,104 INFO L82 PathProgramCache]: Analyzing trace with hash 779953824, now seen corresponding path program 1 times [2020-10-14 22:19:06,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:06,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [460141944] [2020-10-14 22:19:06,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:06,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:06,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:06,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:09,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:11,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:11,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1848 [2020-10-14 22:19:11,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:19:11,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5162 [2020-10-14 22:19:11,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:11,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:11,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:11,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 858 [2020-10-14 22:19:11,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:19:11,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:11,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:11,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:11,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:11,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:11,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:11,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:19:11,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:11,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:11,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:11,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:11,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:11,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:11,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:11,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:11,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:11,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:19:11,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:11,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:19:11,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:11,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:11,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:11,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:11,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:11,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:11,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:19:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:11,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:11,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:11,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:19:11,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:11,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:19:11,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:11,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:11,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:11,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:11,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:11,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:11,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:19:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:11,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:11,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:11,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:19:11,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:11,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:19:11,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:11,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:11,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:11,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:11,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:11,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:11,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 22:19:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:11,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:11,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:11,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:19:11,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:11,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:19:11,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:11,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:11,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:11,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:11,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:11,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:12,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 704 [2020-10-14 22:19:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:12,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:12,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:12,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:19:12,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:12,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 22:19:12,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:12,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:12,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:12,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:12,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 22:19:12,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:12,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 848 [2020-10-14 22:19:12,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:12,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:12,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:12,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:19:12,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:12,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-14 22:19:12,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:12,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:12,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:12,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:12,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:19:12,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:12,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1121 [2020-10-14 22:19:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:13,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:13,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:13,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 22:19:13,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:13,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 22:19:13,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:13,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:13,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:13,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-14 22:19:13,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:13,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:13,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386 [2020-10-14 22:19:13,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:13,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:13,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:13,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:19:13,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:13,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 22:19:13,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:13,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:13,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:13,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:19:13,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:13,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:13,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1601 [2020-10-14 22:19:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:13,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:13,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:13,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 22:19:13,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:13,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:19:13,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:13,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:13,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:13,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 22:19:13,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:13,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:16,189 INFO L134 CoverageAnalysis]: Checked inductivity of 6114 backedges. 1328 proven. 648 refuted. 0 times theorem prover too weak. 4138 trivial. 0 not checked. [2020-10-14 22:19:16,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [460141944] [2020-10-14 22:19:16,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:16,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:19:16,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657138103] [2020-10-14 22:19:16,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:19:16,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:16,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:19:16,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:19:16,192 INFO L87 Difference]: Start difference. First operand 13700 states and 14380 transitions. Second operand 8 states. [2020-10-14 22:19:20,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:20,189 INFO L93 Difference]: Finished difference Result 28088 states and 29512 transitions. [2020-10-14 22:19:20,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:19:20,190 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1822 [2020-10-14 22:19:20,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:20,224 INFO L225 Difference]: With dead ends: 28088 [2020-10-14 22:19:20,225 INFO L226 Difference]: Without dead ends: 14733 [2020-10-14 22:19:20,244 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:19:20,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14733 states. [2020-10-14 22:19:20,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14733 to 14717. [2020-10-14 22:19:20,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14717 states. [2020-10-14 22:19:20,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14717 states to 14717 states and 15427 transitions. [2020-10-14 22:19:20,462 INFO L78 Accepts]: Start accepts. Automaton has 14717 states and 15427 transitions. Word has length 1822 [2020-10-14 22:19:20,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:20,463 INFO L479 AbstractCegarLoop]: Abstraction has 14717 states and 15427 transitions. [2020-10-14 22:19:20,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:19:20,464 INFO L276 IsEmpty]: Start isEmpty. Operand 14717 states and 15427 transitions. [2020-10-14 22:19:20,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1942 [2020-10-14 22:19:20,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:20,509 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 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 22:19:20,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 22:19:20,509 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:20,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:20,510 INFO L82 PathProgramCache]: Analyzing trace with hash 262585559, now seen corresponding path program 1 times [2020-10-14 22:19:20,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:20,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1764661615] [2020-10-14 22:19:20,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:20,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:20,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:21,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking...