/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/Problem18_label58.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:54:34,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:54:34,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:54:34,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:54:34,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:54:34,707 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:54:34,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:54:34,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:54:34,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:54:34,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:54:34,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:54:34,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:54:34,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:54:34,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:54:34,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:54:34,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:54:34,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:54:34,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:54:34,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:54:34,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:54:34,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:54:34,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:54:34,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:54:34,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:54:34,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:54:34,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:54:34,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:54:34,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:54:34,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:54:34,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:54:34,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:54:34,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:54:34,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:54:34,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:54:34,737 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:54:34,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:54:34,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:54:34,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:54:34,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:54:34,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:54:34,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:54:34,741 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 22:54:34,762 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:54:34,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:54:34,764 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:54:34,764 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:54:34,765 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:54:34,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:54:34,765 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:54:34,765 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:54:34,765 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:54:34,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:54:34,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:54:34,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:54:34,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:54:34,766 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:54:34,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:54:34,767 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:54:34,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:54:34,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:54:34,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:54:34,768 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:54:34,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:54:34,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:54:34,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:54:34,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:54:34,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:54:34,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:54:34,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:54:34,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:54:34,770 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:54:34,770 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 22:54:35,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:54:35,113 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:54:35,119 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:54:35,122 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:54:35,122 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:54:35,123 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label58.c [2020-10-14 22:54:35,197 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0162e8d28/b2e3998750e34ef99c774c14b5198c5e/FLAG753f52bb8 [2020-10-14 22:54:35,928 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:54:35,929 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label58.c [2020-10-14 22:54:35,961 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0162e8d28/b2e3998750e34ef99c774c14b5198c5e/FLAG753f52bb8 [2020-10-14 22:54:35,998 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0162e8d28/b2e3998750e34ef99c774c14b5198c5e [2020-10-14 22:54:36,010 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:54:36,013 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:54:36,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:54:36,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:54:36,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:54:36,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:54:36" (1/1) ... [2020-10-14 22:54:36,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78532141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:36, skipping insertion in model container [2020-10-14 22:54:36,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:54:36" (1/1) ... [2020-10-14 22:54:36,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:54:36,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:54:37,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:54:37,720 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:54:38,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:54:38,270 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:54:38,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:38 WrapperNode [2020-10-14 22:54:38,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:54:38,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:54:38,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:54:38,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:54:38,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:38" (1/1) ... [2020-10-14 22:54:38,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:38" (1/1) ... [2020-10-14 22:54:38,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:38" (1/1) ... [2020-10-14 22:54:38,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:38" (1/1) ... [2020-10-14 22:54:38,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:38" (1/1) ... [2020-10-14 22:54:38,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:38" (1/1) ... [2020-10-14 22:54:38,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:38" (1/1) ... [2020-10-14 22:54:38,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:54:38,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:54:38,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:54:38,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:54:38,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:38" (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 22:54:38,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:54:38,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:54:38,644 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:54:38,644 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:54:38,644 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 22:54:38,645 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:54:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:54:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:54:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 22:54:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:54:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:54:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:54:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:54:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:54:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:54:44,982 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:54:44,982 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:54:45,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:54:45 BoogieIcfgContainer [2020-10-14 22:54:45,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:54:45,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:54:45,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:54:45,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:54:45,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:54:36" (1/3) ... [2020-10-14 22:54:45,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b814332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:54:45, skipping insertion in model container [2020-10-14 22:54:45,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:38" (2/3) ... [2020-10-14 22:54:45,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b814332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:54:45, skipping insertion in model container [2020-10-14 22:54:45,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:54:45" (3/3) ... [2020-10-14 22:54:45,020 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label58.c [2020-10-14 22:54:45,031 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:54:45,046 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:54:45,063 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:54:45,105 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:54:45,105 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:54:45,105 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:54:45,106 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:54:45,106 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:54:45,106 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:54:45,106 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:54:45,106 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:54:45,150 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 22:54:45,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-14 22:54:45,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:54:45,164 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] [2020-10-14 22:54:45,165 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:54:45,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:54:45,172 INFO L82 PathProgramCache]: Analyzing trace with hash -27900295, now seen corresponding path program 1 times [2020-10-14 22:54:45,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:54:45,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973548193] [2020-10-14 22:54:45,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:54:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:45,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:45,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:45,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 22:54:45,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:45,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-10-14 22:54:45,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:45,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:45,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:54:45,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:54:45,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-14 22:54:45,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:54:45,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:54:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:45,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:45,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:45,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:54:45,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:45,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:54:45,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:45,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:45,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:54:45,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:45,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:54:45,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:45,953 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 22:54:45,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973548193] [2020-10-14 22:54:45,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:54:45,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 22:54:45,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144215116] [2020-10-14 22:54:45,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:54:45,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:54:45,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:54:45,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:54:45,983 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 5 states. [2020-10-14 22:54:59,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:54:59,417 INFO L93 Difference]: Finished difference Result 2984 states and 5769 transitions. [2020-10-14 22:54:59,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:54:59,423 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2020-10-14 22:54:59,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:54:59,465 INFO L225 Difference]: With dead ends: 2984 [2020-10-14 22:54:59,466 INFO L226 Difference]: Without dead ends: 2142 [2020-10-14 22:54:59,476 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 22:54:59,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2142 states. [2020-10-14 22:54:59,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2142 to 2135. [2020-10-14 22:54:59,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2135 states. [2020-10-14 22:54:59,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 3571 transitions. [2020-10-14 22:54:59,651 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 3571 transitions. Word has length 46 [2020-10-14 22:54:59,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:54:59,652 INFO L479 AbstractCegarLoop]: Abstraction has 2135 states and 3571 transitions. [2020-10-14 22:54:59,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:54:59,652 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 3571 transitions. [2020-10-14 22:54:59,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-14 22:54:59,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:54:59,659 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:54:59,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:54:59,660 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:54:59,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:54:59,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1702034768, now seen corresponding path program 1 times [2020-10-14 22:54:59,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:54:59,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358836304] [2020-10-14 22:54:59,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:54:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:59,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:59,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:00,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:01,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:01,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 22:55:01,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:55:01,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1650 [2020-10-14 22:55:01,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:01,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:01,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:55:01,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:55:01,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-14 22:55:01,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:55:01,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:55:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:01,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:01,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:01,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:55:01,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:01,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:55:01,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:01,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:01,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:01,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:01,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:55:01,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:01,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:55:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:01,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:01,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:01,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:55:01,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:01,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-14 22:55:01,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:01,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:01,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:01,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:55:01,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 22:55:01,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:01,702 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:55:01,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358836304] [2020-10-14 22:55:01,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:55:01,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:55:01,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537090308] [2020-10-14 22:55:01,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:55:01,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:55:01,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:55:01,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:55:01,707 INFO L87 Difference]: Start difference. First operand 2135 states and 3571 transitions. Second operand 7 states. [2020-10-14 22:55:10,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:55:10,601 INFO L93 Difference]: Finished difference Result 6477 states and 10915 transitions. [2020-10-14 22:55:10,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:55:10,603 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 134 [2020-10-14 22:55:10,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:55:10,627 INFO L225 Difference]: With dead ends: 6477 [2020-10-14 22:55:10,627 INFO L226 Difference]: Without dead ends: 4348 [2020-10-14 22:55:10,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:55:10,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4348 states. [2020-10-14 22:55:10,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4348 to 3595. [2020-10-14 22:55:10,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3595 states. [2020-10-14 22:55:10,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3595 states to 3595 states and 5296 transitions. [2020-10-14 22:55:10,763 INFO L78 Accepts]: Start accepts. Automaton has 3595 states and 5296 transitions. Word has length 134 [2020-10-14 22:55:10,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:55:10,764 INFO L479 AbstractCegarLoop]: Abstraction has 3595 states and 5296 transitions. [2020-10-14 22:55:10,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:55:10,764 INFO L276 IsEmpty]: Start isEmpty. Operand 3595 states and 5296 transitions. [2020-10-14 22:55:10,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-14 22:55:10,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:55:10,769 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:55:10,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:55:10,769 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:55:10,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:55:10,770 INFO L82 PathProgramCache]: Analyzing trace with hash 2005396520, now seen corresponding path program 1 times [2020-10-14 22:55:10,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:55:10,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65849703] [2020-10-14 22:55:10,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:55:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:10,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:10,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:11,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:13,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:14,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:14,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-14 22:55:14,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:55:14,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4037 [2020-10-14 22:55:14,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:14,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:14,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:14,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:55:14,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 22:55:14,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:14,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:55:14,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:14,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:14,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:14,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:55:14,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:14,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:55:14,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:14,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:14,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:14,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:14,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:14,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:14,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:55:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:14,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:15,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:15,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:55:15,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:15,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:55:15,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:15,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:15,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:15,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:15,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 22:55:15,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:15,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 22:55:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:15,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:15,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:15,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:55:15,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:15,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-14 22:55:15,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:15,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:15,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:15,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:55:15,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 22:55:15,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:15,349 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 146 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 22:55:15,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [65849703] [2020-10-14 22:55:15,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:55:15,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:55:15,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795573433] [2020-10-14 22:55:15,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:55:15,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:55:15,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:55:15,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:55:15,355 INFO L87 Difference]: Start difference. First operand 3595 states and 5296 transitions. Second operand 8 states. [2020-10-14 22:55:27,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:55:27,629 INFO L93 Difference]: Finished difference Result 9453 states and 13615 transitions. [2020-10-14 22:55:27,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:55:27,634 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 205 [2020-10-14 22:55:27,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:55:27,660 INFO L225 Difference]: With dead ends: 9453 [2020-10-14 22:55:27,661 INFO L226 Difference]: Without dead ends: 5126 [2020-10-14 22:55:27,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:55:27,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5126 states. [2020-10-14 22:55:27,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5126 to 5076. [2020-10-14 22:55:27,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5076 states. [2020-10-14 22:55:27,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5076 states to 5076 states and 5774 transitions. [2020-10-14 22:55:27,821 INFO L78 Accepts]: Start accepts. Automaton has 5076 states and 5774 transitions. Word has length 205 [2020-10-14 22:55:27,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:55:27,823 INFO L479 AbstractCegarLoop]: Abstraction has 5076 states and 5774 transitions. [2020-10-14 22:55:27,823 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:55:27,823 INFO L276 IsEmpty]: Start isEmpty. Operand 5076 states and 5774 transitions. [2020-10-14 22:55:27,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-14 22:55:27,832 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:55:27,840 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:55:27,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:55:27,840 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:55:27,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:55:27,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1689547383, now seen corresponding path program 1 times [2020-10-14 22:55:27,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:55:27,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586735939] [2020-10-14 22:55:27,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:55:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:27,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:27,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:28,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:31,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:31,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:31,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-10-14 22:55:31,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:55:31,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3508 [2020-10-14 22:55:31,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:31,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:31,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:55:31,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:55:31,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-14 22:55:31,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:55:31,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:55:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:31,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:31,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:31,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:55:31,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:31,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:55:31,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:31,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:31,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:31,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:31,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:31,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:31,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:55:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:31,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:31,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:31,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:55:31,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:31,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:55:31,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:31,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:31,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:31,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:31,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 22:55:31,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:55:31,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 22:55:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:31,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:31,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:31,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:31,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 22:55:31,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:55:31,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-14 22:55:31,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:31,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:31,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:31,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:31,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 22:55:31,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:31,933 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-14 22:55:31,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586735939] [2020-10-14 22:55:31,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:55:31,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 22:55:31,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568230050] [2020-10-14 22:55:31,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 22:55:31,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:55:31,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 22:55:31,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:55:31,939 INFO L87 Difference]: Start difference. First operand 5076 states and 5774 transitions. Second operand 6 states. [2020-10-14 22:55:40,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:55:40,719 INFO L93 Difference]: Finished difference Result 12319 states and 14352 transitions. [2020-10-14 22:55:40,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:55:40,720 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 244 [2020-10-14 22:55:40,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:55:40,749 INFO L225 Difference]: With dead ends: 12319 [2020-10-14 22:55:40,750 INFO L226 Difference]: Without dead ends: 7249 [2020-10-14 22:55:40,763 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:55:40,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7249 states. [2020-10-14 22:55:40,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7249 to 7234. [2020-10-14 22:55:40,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7234 states. [2020-10-14 22:55:41,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7234 states to 7234 states and 8088 transitions. [2020-10-14 22:55:41,005 INFO L78 Accepts]: Start accepts. Automaton has 7234 states and 8088 transitions. Word has length 244 [2020-10-14 22:55:41,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:55:41,007 INFO L479 AbstractCegarLoop]: Abstraction has 7234 states and 8088 transitions. [2020-10-14 22:55:41,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 22:55:41,007 INFO L276 IsEmpty]: Start isEmpty. Operand 7234 states and 8088 transitions. [2020-10-14 22:55:41,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2020-10-14 22:55:41,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:55:41,017 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, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 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 22:55:41,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:55:41,018 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:55:41,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:55:41,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1716687013, now seen corresponding path program 1 times [2020-10-14 22:55:41,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:55:41,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440406300] [2020-10-14 22:55:41,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:55:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:41,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:41,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:41,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:43,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:44,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:46,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:46,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-14 22:55:46,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:55:46,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-14 22:55:46,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:46,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:46,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:46,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:55:46,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 22:55:46,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 22:55:46,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:55:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:46,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:46,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:46,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:55:46,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:46,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:55:46,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:46,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:46,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:46,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:46,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:46,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:55:46,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:55:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:46,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:46,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:46,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:55:46,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:46,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:55:46,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:46,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:46,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:46,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:46,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 22:55:46,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:46,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 22:55:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:46,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:46,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:46,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 22:55:46,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:46,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-14 22:55:46,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:46,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:46,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:46,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:55:46,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 22:55:46,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:46,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-10-14 22:55:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:46,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:46,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:46,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:55:46,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:46,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:55:46,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:46,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:46,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:46,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 22:55:46,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:46,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:46,667 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 189 proven. 87 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-14 22:55:46,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440406300] [2020-10-14 22:55:46,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:55:46,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:55:46,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515566555] [2020-10-14 22:55:46,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:55:46,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:55:46,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:55:46,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:55:46,670 INFO L87 Difference]: Start difference. First operand 7234 states and 8088 transitions. Second operand 7 states. [2020-10-14 22:55:58,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:55:58,422 INFO L93 Difference]: Finished difference Result 22524 states and 25963 transitions. [2020-10-14 22:55:58,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:55:58,423 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 311 [2020-10-14 22:55:58,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:55:58,485 INFO L225 Difference]: With dead ends: 22524 [2020-10-14 22:55:58,485 INFO L226 Difference]: Without dead ends: 15296 [2020-10-14 22:55:58,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:55:58,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15296 states. [2020-10-14 22:55:58,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15296 to 15234. [2020-10-14 22:55:58,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15234 states. [2020-10-14 22:55:58,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15234 states to 15234 states and 17104 transitions. [2020-10-14 22:55:58,843 INFO L78 Accepts]: Start accepts. Automaton has 15234 states and 17104 transitions. Word has length 311 [2020-10-14 22:55:58,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:55:58,844 INFO L479 AbstractCegarLoop]: Abstraction has 15234 states and 17104 transitions. [2020-10-14 22:55:58,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:55:58,844 INFO L276 IsEmpty]: Start isEmpty. Operand 15234 states and 17104 transitions. [2020-10-14 22:55:58,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-10-14 22:55:58,853 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:55:58,854 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:55:58,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:55:58,855 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:55:58,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:55:58,855 INFO L82 PathProgramCache]: Analyzing trace with hash -613110406, now seen corresponding path program 1 times [2020-10-14 22:55:58,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:55:58,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332457749] [2020-10-14 22:55:58,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:55:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:58,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:58,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:59,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:00,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:01,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:03,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:03,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 326 [2020-10-14 22:56:03,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:56:03,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 22:56:03,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:03,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:03,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:03,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-10-14 22:56:03,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 22:56:03,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:03,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:56:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:03,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:03,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:03,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:56:03,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:03,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:56:03,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:03,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:03,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:03,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:03,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:03,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:04,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:56:04,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:04,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:04,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:04,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:56:04,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:04,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:56:04,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:04,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:04,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:04,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:04,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:04,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:04,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 22:56:04,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:04,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:04,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:04,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 22:56:04,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:04,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 22:56:04,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:04,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:04,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:56:04,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:04,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 22:56:04,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:56:04,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-14 22:56:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:04,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:04,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:04,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:56:04,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:04,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-14 22:56:04,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:04,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:04,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:04,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:56:04,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 22:56:04,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:04,583 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 276 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-14 22:56:04,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [332457749] [2020-10-14 22:56:04,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:56:04,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:56:04,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051901116] [2020-10-14 22:56:04,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:56:04,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:56:04,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:56:04,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:56:04,587 INFO L87 Difference]: Start difference. First operand 15234 states and 17104 transitions. Second operand 7 states. [2020-10-14 22:56:13,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:56:13,057 INFO L93 Difference]: Finished difference Result 30824 states and 35948 transitions. [2020-10-14 22:56:13,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:56:13,059 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 312 [2020-10-14 22:56:13,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:56:13,113 INFO L225 Difference]: With dead ends: 30824 [2020-10-14 22:56:13,113 INFO L226 Difference]: Without dead ends: 15596 [2020-10-14 22:56:13,146 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 22:56:13,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15596 states. [2020-10-14 22:56:13,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15596 to 15347. [2020-10-14 22:56:13,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15347 states. [2020-10-14 22:56:13,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15347 states to 15347 states and 16961 transitions. [2020-10-14 22:56:13,457 INFO L78 Accepts]: Start accepts. Automaton has 15347 states and 16961 transitions. Word has length 312 [2020-10-14 22:56:13,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:56:13,458 INFO L479 AbstractCegarLoop]: Abstraction has 15347 states and 16961 transitions. [2020-10-14 22:56:13,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:56:13,458 INFO L276 IsEmpty]: Start isEmpty. Operand 15347 states and 16961 transitions. [2020-10-14 22:56:13,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-10-14 22:56:13,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:56:13,469 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:56:13,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:56:13,470 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:56:13,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:56:13,470 INFO L82 PathProgramCache]: Analyzing trace with hash -424346902, now seen corresponding path program 1 times [2020-10-14 22:56:13,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:56:13,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [732248456] [2020-10-14 22:56:13,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:56:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:13,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:13,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:13,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:13,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:16,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:17,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:18,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:18,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 334 [2020-10-14 22:56:18,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 22:56:18,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-14 22:56:18,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:18,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:18,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:56:18,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-14 22:56:18,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 207 [2020-10-14 22:56:18,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:18,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:56:18,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:18,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:18,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:18,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:56:18,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:18,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:56:18,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:18,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:18,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:18,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:18,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:18,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:18,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:56:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:18,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:18,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:18,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:56:18,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:18,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:56:18,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:18,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:18,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:56:18,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:18,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 22:56:18,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:18,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 22:56:18,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:18,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:18,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:18,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:18,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-14 22:56:18,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:56:18,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-14 22:56:18,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:18,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:18,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:18,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:56:18,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-14 22:56:18,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:19,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-14 22:56:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:19,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:19,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:19,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:56:19,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:19,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 22:56:19,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:19,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:19,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:19,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:56:19,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 22:56:19,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:19,329 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 336 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-14 22:56:19,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [732248456] [2020-10-14 22:56:19,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:56:19,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:56:19,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719982288] [2020-10-14 22:56:19,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:56:19,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:56:19,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:56:19,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:56:19,332 INFO L87 Difference]: Start difference. First operand 15347 states and 16961 transitions. Second operand 8 states. [2020-10-14 22:56:28,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:56:28,364 INFO L93 Difference]: Finished difference Result 31512 states and 35192 transitions. [2020-10-14 22:56:28,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:56:28,365 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 320 [2020-10-14 22:56:28,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:56:28,429 INFO L225 Difference]: With dead ends: 31512 [2020-10-14 22:56:28,429 INFO L226 Difference]: Without dead ends: 16171 [2020-10-14 22:56:28,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:56:28,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16171 states. [2020-10-14 22:56:28,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16171 to 16095. [2020-10-14 22:56:28,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16095 states. [2020-10-14 22:56:28,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16095 states to 16095 states and 17613 transitions. [2020-10-14 22:56:28,771 INFO L78 Accepts]: Start accepts. Automaton has 16095 states and 17613 transitions. Word has length 320 [2020-10-14 22:56:28,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:56:28,772 INFO L479 AbstractCegarLoop]: Abstraction has 16095 states and 17613 transitions. [2020-10-14 22:56:28,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:56:28,772 INFO L276 IsEmpty]: Start isEmpty. Operand 16095 states and 17613 transitions. [2020-10-14 22:56:28,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-10-14 22:56:28,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:56:28,796 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:56:28,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:56:28,797 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:56:28,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:56:28,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1540560461, now seen corresponding path program 1 times [2020-10-14 22:56:28,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:56:28,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [754794864] [2020-10-14 22:56:28,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:56:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:28,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:28,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:30,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:30,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:33,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:33,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 363 [2020-10-14 22:56:33,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:56:33,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4980 [2020-10-14 22:56:33,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:33,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:33,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 22:56:33,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-14 22:56:33,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 236 [2020-10-14 22:56:33,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:33,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:56:33,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:33,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:33,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:33,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:56:33,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:33,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:56:33,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:33,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:33,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:33,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:33,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:33,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:33,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:56:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:33,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:33,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:33,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:56:33,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:33,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:56:33,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:33,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:33,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:56:33,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:33,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 22:56:33,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:33,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 22:56:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:34,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:34,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:34,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 22:56:34,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:34,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 22:56:34,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:34,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:34,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:56:34,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:56:34,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 22:56:34,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:34,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-14 22:56:34,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:34,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:34,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:34,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:56:34,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:34,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 22:56:34,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:34,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:34,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:34,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:56:34,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 22:56:34,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:34,374 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 259 proven. 6 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-14 22:56:34,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [754794864] [2020-10-14 22:56:34,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:56:34,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 22:56:34,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106244384] [2020-10-14 22:56:34,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 22:56:34,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:56:34,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 22:56:34,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-14 22:56:34,376 INFO L87 Difference]: Start difference. First operand 16095 states and 17613 transitions. Second operand 9 states. [2020-10-14 22:56:53,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:56:53,234 INFO L93 Difference]: Finished difference Result 56158 states and 64335 transitions. [2020-10-14 22:56:53,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 22:56:53,236 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 349 [2020-10-14 22:56:53,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:56:53,338 INFO L225 Difference]: With dead ends: 56158 [2020-10-14 22:56:53,338 INFO L226 Difference]: Without dead ends: 40069 [2020-10-14 22:56:53,375 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2020-10-14 22:56:53,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40069 states. [2020-10-14 22:56:53,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40069 to 37696. [2020-10-14 22:56:53,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37696 states. [2020-10-14 22:56:54,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37696 states to 37696 states and 41704 transitions. [2020-10-14 22:56:54,020 INFO L78 Accepts]: Start accepts. Automaton has 37696 states and 41704 transitions. Word has length 349 [2020-10-14 22:56:54,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:56:54,021 INFO L479 AbstractCegarLoop]: Abstraction has 37696 states and 41704 transitions. [2020-10-14 22:56:54,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 22:56:54,021 INFO L276 IsEmpty]: Start isEmpty. Operand 37696 states and 41704 transitions. [2020-10-14 22:56:54,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2020-10-14 22:56:54,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:56:54,042 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 22:56:54,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:56:54,043 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:56:54,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:56:54,044 INFO L82 PathProgramCache]: Analyzing trace with hash -545656109, now seen corresponding path program 1 times [2020-10-14 22:56:54,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:56:54,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [161502962] [2020-10-14 22:56:54,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:56:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:54,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:54,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:54,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:54,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:55,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:59,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:59,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 379 [2020-10-14 22:56:59,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:56:59,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 22:56:59,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:59,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:59,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:56:59,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:56:59,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-14 22:56:59,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:59,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:56:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:59,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:59,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:59,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:56:59,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:59,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:56:59,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:59,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:59,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:59,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:59,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:59,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:59,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:56:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:59,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:59,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:59,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:56:59,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:59,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:56:59,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:59,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:59,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:59,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:59,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:59,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:59,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 22:56:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:59,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:59,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:59,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:56:59,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:59,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:56:59,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:59,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:59,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:56:59,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:59,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 22:56:59,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:59,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-14 22:56:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:59,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:59,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:59,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:56:59,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:59,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 22:56:59,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:59,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:59,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:59,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:56:59,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 22:56:59,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:59,652 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 258 proven. 40 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-14 22:56:59,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [161502962] [2020-10-14 22:56:59,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:56:59,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 22:56:59,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403091682] [2020-10-14 22:56:59,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 22:56:59,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:56:59,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 22:56:59,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:56:59,654 INFO L87 Difference]: Start difference. First operand 37696 states and 41704 transitions. Second operand 6 states. [2020-10-14 22:57:10,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:57:10,302 INFO L93 Difference]: Finished difference Result 86219 states and 97550 transitions. [2020-10-14 22:57:10,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:57:10,305 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 365 [2020-10-14 22:57:10,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:57:10,451 INFO L225 Difference]: With dead ends: 86219 [2020-10-14 22:57:10,452 INFO L226 Difference]: Without dead ends: 53548 [2020-10-14 22:57:10,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:57:10,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53548 states. [2020-10-14 22:57:12,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53548 to 50483. [2020-10-14 22:57:12,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50483 states. [2020-10-14 22:57:12,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50483 states to 50483 states and 55344 transitions. [2020-10-14 22:57:12,896 INFO L78 Accepts]: Start accepts. Automaton has 50483 states and 55344 transitions. Word has length 365 [2020-10-14 22:57:12,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:57:12,897 INFO L479 AbstractCegarLoop]: Abstraction has 50483 states and 55344 transitions. [2020-10-14 22:57:12,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 22:57:12,897 INFO L276 IsEmpty]: Start isEmpty. Operand 50483 states and 55344 transitions. [2020-10-14 22:57:12,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2020-10-14 22:57:12,923 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:57:12,923 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 22:57:12,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:57:12,924 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:57:12,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:57:12,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1225095634, now seen corresponding path program 1 times [2020-10-14 22:57:12,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:57:12,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [31390922] [2020-10-14 22:57:12,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:57:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:12,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:13,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:13,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:14,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:15,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:17,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:17,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 408 [2020-10-14 22:57:17,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:57:17,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 22:57:17,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:17,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:17,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:57:17,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 225 [2020-10-14 22:57:17,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 22:57:17,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:57:18,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:57:18,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:18,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:18,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:18,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:57:18,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:18,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:57:18,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:18,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:18,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:18,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:18,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:18,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:18,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:57:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:18,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:18,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:18,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 22:57:18,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:18,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:57:18,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:18,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:18,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:18,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:18,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:18,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:18,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 22:57:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:18,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:18,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:18,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-14 22:57:18,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:18,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:57:18,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:18,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:18,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:57:18,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:18,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-14 22:57:18,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:18,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:57:18,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:18,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:18,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:18,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:57:18,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:18,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 22:57:18,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:18,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:18,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:57:18,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:57:18,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 22:57:18,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:18,411 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 329 proven. 2 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-14 22:57:18,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [31390922] [2020-10-14 22:57:18,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:57:18,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:57:18,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635153553] [2020-10-14 22:57:18,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:57:18,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:57:18,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:57:18,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:57:18,414 INFO L87 Difference]: Start difference. First operand 50483 states and 55344 transitions. Second operand 8 states. [2020-10-14 22:57:26,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:57:26,615 INFO L93 Difference]: Finished difference Result 96761 states and 106197 transitions. [2020-10-14 22:57:26,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:57:26,617 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 394 [2020-10-14 22:57:26,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:57:26,739 INFO L225 Difference]: With dead ends: 96761 [2020-10-14 22:57:26,739 INFO L226 Difference]: Without dead ends: 46990 [2020-10-14 22:57:26,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:57:26,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46990 states. [2020-10-14 22:57:27,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46990 to 44757. [2020-10-14 22:57:27,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44757 states. [2020-10-14 22:57:27,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44757 states to 44757 states and 48253 transitions. [2020-10-14 22:57:27,879 INFO L78 Accepts]: Start accepts. Automaton has 44757 states and 48253 transitions. Word has length 394 [2020-10-14 22:57:27,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:57:27,882 INFO L479 AbstractCegarLoop]: Abstraction has 44757 states and 48253 transitions. [2020-10-14 22:57:27,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:57:27,882 INFO L276 IsEmpty]: Start isEmpty. Operand 44757 states and 48253 transitions. [2020-10-14 22:57:27,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2020-10-14 22:57:27,910 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:57:27,910 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:57:27,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:57:27,911 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:57:27,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:57:27,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1589930736, now seen corresponding path program 1 times [2020-10-14 22:57:27,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:57:27,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [54682871] [2020-10-14 22:57:27,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:57:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:28,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:28,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:28,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:28,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:31,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:33,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:33,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 502 [2020-10-14 22:57:33,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:57:33,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 22:57:33,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:33,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:33,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:57:33,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 22:57:33,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 188 [2020-10-14 22:57:33,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:33,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:57:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:33,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:33,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:33,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:57:33,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:33,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:57:33,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:33,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:33,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:33,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:33,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:33,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:33,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:57:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:33,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:33,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:33,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:57:33,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:33,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 22:57:33,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:33,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:33,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:57:33,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:33,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 22:57:33,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:33,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 22:57:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:33,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:33,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:33,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-14 22:57:33,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:33,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-14 22:57:33,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:33,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:33,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:57:33,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:57:33,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 186 [2020-10-14 22:57:33,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:33,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-14 22:57:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:33,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:33,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:33,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:57:33,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:33,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:57:33,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:33,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:33,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:33,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-10-14 22:57:33,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:33,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:57:34,315 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 240 proven. 134 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-10-14 22:57:34,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [54682871] [2020-10-14 22:57:34,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:57:34,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:57:34,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622840278] [2020-10-14 22:57:34,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:57:34,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:57:34,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:57:34,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:57:34,318 INFO L87 Difference]: Start difference. First operand 44757 states and 48253 transitions. Second operand 7 states. [2020-10-14 22:57:44,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:57:44,589 INFO L93 Difference]: Finished difference Result 98815 states and 106986 transitions. [2020-10-14 22:57:44,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:57:44,590 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 488 [2020-10-14 22:57:44,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:57:44,716 INFO L225 Difference]: With dead ends: 98815 [2020-10-14 22:57:44,716 INFO L226 Difference]: Without dead ends: 54064 [2020-10-14 22:57:44,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 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 22:57:44,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54064 states. [2020-10-14 22:57:45,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54064 to 51851. [2020-10-14 22:57:45,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51851 states. [2020-10-14 22:57:47,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51851 states to 51851 states and 55629 transitions. [2020-10-14 22:57:47,657 INFO L78 Accepts]: Start accepts. Automaton has 51851 states and 55629 transitions. Word has length 488 [2020-10-14 22:57:47,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:57:47,658 INFO L479 AbstractCegarLoop]: Abstraction has 51851 states and 55629 transitions. [2020-10-14 22:57:47,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:57:47,659 INFO L276 IsEmpty]: Start isEmpty. Operand 51851 states and 55629 transitions. [2020-10-14 22:57:47,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 589 [2020-10-14 22:57:47,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:57:47,683 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2020-10-14 22:57:47,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:57:47,684 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:57:47,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:57:47,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1853672790, now seen corresponding path program 1 times [2020-10-14 22:57:47,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:57:47,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493070452] [2020-10-14 22:57:47,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:57:47,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:47,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:47,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:48,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:48,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:52,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:52,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 606 [2020-10-14 22:57:52,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:57:52,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 22:57:52,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:52,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:52,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:57:52,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 207 [2020-10-14 22:57:52,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-14 22:57:52,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:52,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:57:52,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:52,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:52,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:52,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:57:52,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:52,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:57:52,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:52,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:52,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:52,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:52,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:52,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:52,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:57:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:52,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:52,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:52,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:57:52,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:52,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:57:52,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:52,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:52,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:52,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:52,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:52,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:52,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 22:57:52,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:52,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:52,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:52,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 22:57:52,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:52,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:57:52,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:52,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:52,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:57:52,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:52,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 22:57:52,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:52,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-14 22:57:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:52,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:53,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:53,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-14 22:57:53,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:53,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 22:57:53,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:53,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:53,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:57:53,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:57:53,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-14 22:57:53,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:53,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2020-10-14 22:57:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:53,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:53,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:53,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-14 22:57:53,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:53,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:57:53,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:53,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:53,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:53,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 112 [2020-10-14 22:57:53,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:53,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:53,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-14 22:57:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:53,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:53,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:53,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:57:53,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:53,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:57:53,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:53,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:53,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:53,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 22:57:53,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:53,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:53,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1101 backedges. 405 proven. 198 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2020-10-14 22:57:53,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493070452] [2020-10-14 22:57:53,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:57:53,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:57:53,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689232488] [2020-10-14 22:57:53,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:57:53,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:57:53,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:57:53,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:57:53,385 INFO L87 Difference]: Start difference. First operand 51851 states and 55629 transitions. Second operand 7 states. [2020-10-14 22:58:04,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:58:04,288 INFO L93 Difference]: Finished difference Result 115124 states and 124575 transitions. [2020-10-14 22:58:04,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:58:04,289 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 588 [2020-10-14 22:58:04,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:58:04,418 INFO L225 Difference]: With dead ends: 115124 [2020-10-14 22:58:04,418 INFO L226 Difference]: Without dead ends: 64693 [2020-10-14 22:58:04,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 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 22:58:04,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64693 states. [2020-10-14 22:58:05,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64693 to 63924. [2020-10-14 22:58:05,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63924 states. [2020-10-14 22:58:05,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63924 states to 63924 states and 68744 transitions. [2020-10-14 22:58:05,264 INFO L78 Accepts]: Start accepts. Automaton has 63924 states and 68744 transitions. Word has length 588 [2020-10-14 22:58:05,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:58:05,265 INFO L479 AbstractCegarLoop]: Abstraction has 63924 states and 68744 transitions. [2020-10-14 22:58:05,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:58:05,265 INFO L276 IsEmpty]: Start isEmpty. Operand 63924 states and 68744 transitions. [2020-10-14 22:58:05,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 622 [2020-10-14 22:58:05,288 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:58:05,289 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:05,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:58:05,290 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:58:05,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:58:05,290 INFO L82 PathProgramCache]: Analyzing trace with hash 299659351, now seen corresponding path program 1 times [2020-10-14 22:58:05,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:58:05,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839295727] [2020-10-14 22:58:05,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:58:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:58:05,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:05,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:05,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:07,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:10,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:58:10,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 639 [2020-10-14 22:58:10,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:58:10,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5229 [2020-10-14 22:58:10,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:58:10,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:58:10,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:58:10,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 207 [2020-10-14 22:58:10,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-14 22:58:10,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:58:10,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:58:10,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:58:10,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:10,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:58:10,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:58:10,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:58:10,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:58:10,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:58:10,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:58:10,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:58:10,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:58:10,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:58:10,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:58:10,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:58:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:58:10,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:10,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:58:10,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:58:10,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:58:10,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:58:10,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:58:10,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:58:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:58:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:58:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:58:10,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:58:10,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 22:58:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:58:10,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:10,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:58:10,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 22:58:10,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:58:10,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:58:10,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:58:10,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:58:10,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:58:10,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:58:10,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 22:58:10,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:58:10,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-14 22:58:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:58:10,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:10,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:58:10,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-14 22:58:10,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:58:10,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 22:58:10,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:58:10,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:58:10,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:58:10,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:58:10,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-14 22:58:10,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:58:11,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2020-10-14 22:58:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:58:11,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:11,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:58:11,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-14 22:58:11,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:58:11,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:58:11,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:58:11,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:58:11,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:58:11,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 112 [2020-10-14 22:58:11,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:58:11,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:58:11,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2020-10-14 22:58:11,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:58:11,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:11,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:58:11,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:58:11,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:58:11,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:58:11,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:58:11,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:58:11,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:58:11,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 22:58:11,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:58:11,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:58:11,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1101 backedges. 405 proven. 198 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2020-10-14 22:58:11,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839295727] [2020-10-14 22:58:11,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:58:11,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:58:11,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436085615] [2020-10-14 22:58:11,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:58:11,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:58:11,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:58:11,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:58:11,457 INFO L87 Difference]: Start difference. First operand 63924 states and 68744 transitions. Second operand 7 states.