/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 SingleStatement --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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:59:51,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:59:51,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:59:51,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:59:51,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:59:51,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:59:51,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:59:51,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:59:51,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:59:51,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:59:51,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:59:51,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:59:51,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:59:51,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:59:51,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:59:51,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:59:51,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:59:51,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:59:51,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:59:51,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:59:51,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:59:51,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:59:51,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:59:51,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:59:51,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-25 00:59:51,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:59:51,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:59:51,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:59:51,834 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 [2020-09-25 00:59:51,875 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:59:51,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:59:51,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:59:51,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:59:51,878 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:59:51,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:59:51,879 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:59:51,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:59:51,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:59:51,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:59:51,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:59:51,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:59:51,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:59:51,882 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:59:51,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:59:51,882 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:59:51,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:59:51,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:59:51,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:59:51,883 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:59:51,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:59:51,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:59:51,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:59:51,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:59:51,884 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:59:51,884 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:59:51,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:59:51,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:59:51,885 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:59:51,885 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 -> SingleStatement 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=DEEPEST;log-additional-information=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=DEEPEST;log-additional-information=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=DEEPEST;log-additional-information=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=DEEPEST;log-additional-information=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=DEEPEST;log-additional-information=true; [2020-09-25 00:59:52,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:59:52,354 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:59:52,358 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:59:52,360 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:59:52,361 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:59:52,362 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-09-25 00:59:52,457 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27268d798/620930268f2e4df3a29e63b309243492/FLAG857c8c766 [2020-09-25 00:59:53,120 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:59:53,122 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-09-25 00:59:53,136 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27268d798/620930268f2e4df3a29e63b309243492/FLAG857c8c766 [2020-09-25 00:59:53,340 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27268d798/620930268f2e4df3a29e63b309243492 [2020-09-25 00:59:53,356 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:59:53,365 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:59:53,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:59:53,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:59:53,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:59:53,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:59:53" (1/1) ... [2020-09-25 00:59:53,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@194bd3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:59:53, skipping insertion in model container [2020-09-25 00:59:53,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:59:53" (1/1) ... [2020-09-25 00:59:53,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:59:53,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:59:53,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:59:53,980 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:59:54,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:59:54,218 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:59:54,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:59:54 WrapperNode [2020-09-25 00:59:54,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:59:54,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:59:54,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:59:54,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:59:54,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:59:54" (1/1) ... [2020-09-25 00:59:54,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:59:54" (1/1) ... [2020-09-25 00:59:54,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:59:54" (1/1) ... [2020-09-25 00:59:54,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:59:54" (1/1) ... [2020-09-25 00:59:54,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:59:54" (1/1) ... [2020-09-25 00:59:54,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:59:54" (1/1) ... [2020-09-25 00:59:54,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:59:54" (1/1) ... [2020-09-25 00:59:54,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:59:54,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:59:54,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:59:54,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:59:54,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:59:54" (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 [2020-09-25 00:59:54,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:59:54,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:59:54,449 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 00:59:54,449 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:59:54,450 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 00:59:54,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:59:54,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:59:54,450 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 00:59:54,450 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:59:54,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:59:54,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:59:55,902 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:59:55,902 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 00:59:55,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:59:55 BoogieIcfgContainer [2020-09-25 00:59:55,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:59:55,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:59:55,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:59:55,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:59:55,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:59:53" (1/3) ... [2020-09-25 00:59:55,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ec6d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:59:55, skipping insertion in model container [2020-09-25 00:59:55,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:59:54" (2/3) ... [2020-09-25 00:59:55,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ec6d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:59:55, skipping insertion in model container [2020-09-25 00:59:55,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:59:55" (3/3) ... [2020-09-25 00:59:55,922 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label17.c [2020-09-25 00:59:55,934 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:59:55,946 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:59:55,969 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:59:56,016 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:59:56,016 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:59:56,016 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:59:56,016 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:59:56,017 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:59:56,017 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:59:56,017 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:59:56,017 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:59:56,050 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states. [2020-09-25 00:59:56,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-09-25 00:59:56,076 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:59:56,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:59:56,078 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:59:56,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:59:56,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1930932209, now seen corresponding path program 1 times [2020-09-25 00:59:56,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:59:56,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523682103] [2020-09-25 00:59:56,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:59:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:59:56,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:59:56,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:59:57,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:59:57,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:59:59,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:00,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:00,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:00,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:01,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:00:01,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-25 01:00:01,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 01:00:01,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 01:00:01,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:00:01,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:00:01,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 01:00:01,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-25 01:00:01,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:00:01,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:00:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:00:01,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:01,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:00:01,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:00:01,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:00:01,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 01:00:01,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:00:01,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:00:01,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:00:01,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 01:00:01,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:00:01,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:00:01,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523682103] [2020-09-25 01:00:01,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:00:01,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:00:01,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587329716] [2020-09-25 01:00:01,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:00:01,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:00:01,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:00:01,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:00:01,848 INFO L87 Difference]: Start difference. First operand 525 states. Second operand 4 states. [2020-09-25 01:00:04,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:00:04,273 INFO L93 Difference]: Finished difference Result 1231 states and 1630 transitions. [2020-09-25 01:00:04,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:00:04,276 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 144 [2020-09-25 01:00:04,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:00:04,315 INFO L225 Difference]: With dead ends: 1231 [2020-09-25 01:00:04,315 INFO L226 Difference]: Without dead ends: 657 [2020-09-25 01:00:04,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:00:04,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2020-09-25 01:00:04,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 603. [2020-09-25 01:00:04,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-09-25 01:00:04,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 707 transitions. [2020-09-25 01:00:04,473 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 707 transitions. Word has length 144 [2020-09-25 01:00:04,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:00:04,475 INFO L479 AbstractCegarLoop]: Abstraction has 603 states and 707 transitions. [2020-09-25 01:00:04,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:00:04,475 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 707 transitions. [2020-09-25 01:00:04,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 01:00:04,483 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:00:04,484 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:00:04,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:00:04,484 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:00:04,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:00:04,485 INFO L82 PathProgramCache]: Analyzing trace with hash -770413602, now seen corresponding path program 1 times [2020-09-25 01:00:04,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:00:04,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855713549] [2020-09-25 01:00:04,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:00:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:00:04,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:04,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:04,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:05,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:05,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:06,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:07,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:08,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:09,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:00:09,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-25 01:00:09,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 01:00:09,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 01:00:09,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:00:09,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:00:09,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-25 01:00:09,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-25 01:00:09,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:00:09,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:00:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:00:09,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:09,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:00:09,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:00:09,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:00:09,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 01:00:09,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:00:09,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:00:09,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:00:09,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:00:09,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:00:09,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 01:00:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:00:09,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:09,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:00:09,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 01:00:09,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:00:09,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 01:00:09,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:00:09,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:00:09,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:00:09,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:00:09,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:00:09,919 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:00:09,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855713549] [2020-09-25 01:00:09,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 01:00:09,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 01:00:09,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778802918] [2020-09-25 01:00:09,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 01:00:09,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:00:09,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 01:00:09,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 01:00:09,925 INFO L87 Difference]: Start difference. First operand 603 states and 707 transitions. Second operand 6 states. [2020-09-25 01:00:12,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:00:12,827 INFO L93 Difference]: Finished difference Result 1789 states and 2241 transitions. [2020-09-25 01:00:12,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 01:00:12,828 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2020-09-25 01:00:12,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:00:12,841 INFO L225 Difference]: With dead ends: 1789 [2020-09-25 01:00:12,841 INFO L226 Difference]: Without dead ends: 1210 [2020-09-25 01:00:12,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:00:12,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2020-09-25 01:00:12,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1177. [2020-09-25 01:00:12,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1177 states. [2020-09-25 01:00:12,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1447 transitions. [2020-09-25 01:00:12,902 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1447 transitions. Word has length 165 [2020-09-25 01:00:12,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:00:12,904 INFO L479 AbstractCegarLoop]: Abstraction has 1177 states and 1447 transitions. [2020-09-25 01:00:12,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 01:00:12,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1447 transitions. [2020-09-25 01:00:12,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 01:00:12,913 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:00:12,913 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:00:12,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:00:12,914 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:00:12,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:00:12,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1356763225, now seen corresponding path program 1 times [2020-09-25 01:00:12,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:00:12,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [515290575] [2020-09-25 01:00:12,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:00:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:00:13,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:13,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:13,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:13,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:13,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:13,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:13,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:17,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:00:17,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 01:00:17,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 01:00:17,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 01:00:17,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:00:17,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:00:17,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-25 01:00:17,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 01:00:18,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 01:00:18,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:00:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:00:18,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:18,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:00:18,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:00:18,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:00:18,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 01:00:18,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:00:18,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:00:18,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:00:18,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:00:18,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:00:18,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 01:00:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:00:18,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:18,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:00:18,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 01:00:18,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:00:18,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 01:00:18,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:00:18,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:00:18,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:00:18,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:00:18,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:00:18,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 01:00:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:00:18,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:18,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:00:18,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 01:00:18,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:00:18,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 01:00:18,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:00:18,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:00:18,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 01:00:18,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 01:00:18,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:00:18,559 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 01:00:18,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [515290575] [2020-09-25 01:00:18,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 01:00:18,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 01:00:18,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178778824] [2020-09-25 01:00:18,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 01:00:18,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:00:18,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 01:00:18,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:00:18,565 INFO L87 Difference]: Start difference. First operand 1177 states and 1447 transitions. Second operand 7 states. [2020-09-25 01:00:22,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:00:22,094 INFO L93 Difference]: Finished difference Result 3151 states and 4211 transitions. [2020-09-25 01:00:22,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 01:00:22,097 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2020-09-25 01:00:22,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:00:22,122 INFO L225 Difference]: With dead ends: 3151 [2020-09-25 01:00:22,123 INFO L226 Difference]: Without dead ends: 1801 [2020-09-25 01:00:22,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:00:22,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2020-09-25 01:00:22,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1634. [2020-09-25 01:00:22,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1634 states. [2020-09-25 01:00:22,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 1983 transitions. [2020-09-25 01:00:22,273 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 1983 transitions. Word has length 195 [2020-09-25 01:00:22,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:00:22,273 INFO L479 AbstractCegarLoop]: Abstraction has 1634 states and 1983 transitions. [2020-09-25 01:00:22,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 01:00:22,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 1983 transitions. [2020-09-25 01:00:22,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-25 01:00:22,282 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:00:22,282 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:00:22,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:00:22,283 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:00:22,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:00:22,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1025594022, now seen corresponding path program 1 times [2020-09-25 01:00:22,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:00:22,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260831094] [2020-09-25 01:00:22,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:00:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:00:22,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:22,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:22,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:22,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:22,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:24,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:24,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:24,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:25,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:26,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:27,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:00:27,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-09-25 01:00:27,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 01:00:27,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 01:00:27,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:00:27,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 01:00:27,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-09-25 01:00:27,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 01:00:27,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:00:27,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:00:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:00:27,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:27,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:00:27,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:00:27,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:00:27,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 01:00:27,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:00:27,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:00:27,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:00:27,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:00:27,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:00:27,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 01:00:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:00:27,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:27,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:00:27,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 01:00:27,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:00:27,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:00:27,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:00:27,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:00:27,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:00:27,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:00:27,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:00:27,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-09-25 01:00:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:00:27,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:27,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:00:27,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 01:00:27,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:00:27,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 01:00:27,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:00:27,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 01:00:27,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:00:27,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 01:00:27,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:00:27,905 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 31 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-25 01:00:27,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260831094] [2020-09-25 01:00:27,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 01:00:27,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 01:00:27,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131306138] [2020-09-25 01:00:27,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 01:00:27,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:00:27,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 01:00:27,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:00:27,910 INFO L87 Difference]: Start difference. First operand 1634 states and 1983 transitions. Second operand 11 states. [2020-09-25 01:00:31,299 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2020-09-25 01:00:31,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:00:31,805 INFO L93 Difference]: Finished difference Result 4284 states and 5325 transitions. [2020-09-25 01:00:31,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 01:00:31,806 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 196 [2020-09-25 01:00:31,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:00:31,818 INFO L225 Difference]: With dead ends: 4284 [2020-09-25 01:00:31,819 INFO L226 Difference]: Without dead ends: 2607 [2020-09-25 01:00:31,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-25 01:00:31,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2607 states. [2020-09-25 01:00:31,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2607 to 2407. [2020-09-25 01:00:31,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2407 states. [2020-09-25 01:00:31,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 2851 transitions. [2020-09-25 01:00:31,936 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 2851 transitions. Word has length 196 [2020-09-25 01:00:31,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:00:31,936 INFO L479 AbstractCegarLoop]: Abstraction has 2407 states and 2851 transitions. [2020-09-25 01:00:31,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 01:00:31,937 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 2851 transitions. [2020-09-25 01:00:31,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-09-25 01:00:31,947 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:00:31,948 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:00:31,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:00:31,948 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:00:31,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:00:31,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1337012422, now seen corresponding path program 1 times [2020-09-25 01:00:31,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:00:31,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [693632010] [2020-09-25 01:00:31,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:00:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:00:32,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:32,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:32,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:33,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:35,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:35,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:36,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:36,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:36,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:37,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:00:37,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-25 01:00:37,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 01:00:37,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 01:00:37,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:00:37,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 01:00:37,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-09-25 01:00:37,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 01:00:37,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:00:37,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:00:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:00:37,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:37,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:00:37,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:00:37,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:00:37,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 01:00:37,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:00:37,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:00:37,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:00:37,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:00:37,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:00:37,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 01:00:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:00:37,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:37,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:00:37,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 01:00:37,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:00:37,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 01:00:37,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:00:37,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:00:37,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:00:37,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:00:37,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:00:37,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-25 01:00:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:00:37,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:00:37,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:00:37,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 01:00:37,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:00:37,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-09-25 01:00:37,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:00:37,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 01:00:37,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:00:37,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 01:00:37,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:00:37,646 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-25 01:00:37,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [693632010] [2020-09-25 01:00:37,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 01:00:37,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 01:00:37,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098119190] [2020-09-25 01:00:37,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 01:00:37,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:00:37,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 01:00:37,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:00:37,648 INFO L87 Difference]: Start difference. First operand 2407 states and 2851 transitions. Second operand 10 states. [2020-09-25 01:00:41,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:00:41,599 INFO L93 Difference]: Finished difference Result 5590 states and 6733 transitions. [2020-09-25 01:00:41,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 01:00:41,600 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 227 [2020-09-25 01:00:41,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:00:41,601 INFO L225 Difference]: With dead ends: 5590 [2020-09-25 01:00:41,601 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 01:00:41,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-09-25 01:00:41,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 01:00:41,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 01:00:41,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 01:00:41,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 01:00:41,617 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 227 [2020-09-25 01:00:41,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:00:41,617 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 01:00:41,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 01:00:41,617 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 01:00:41,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 01:00:41,618 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:00:41,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.