/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=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_i10_o10-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:11:26,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:11:26,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:11:26,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:11:26,537 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:11:26,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:11:26,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:11:26,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:11:26,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:11:26,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:11:26,545 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:11:26,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:11:26,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:11:26,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:11:26,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:11:26,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:11:26,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:11:26,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:11:26,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:11:26,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:11:26,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:11:26,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:11:26,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:11:26,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:11:26,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:11:26,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:11:26,563 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:11:26,564 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:11:26,565 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:11:26,566 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:11:26,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:11:26,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:11:26,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:11:26,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:11:26,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:11:26,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:11:26,571 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:11:26,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:11:26,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:11:26,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:11:26,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:11:26,574 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 03:11:26,618 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:11:26,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:11:26,620 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:11:26,621 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:11:26,621 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:11:26,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:11:26,621 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:11:26,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:11:26,622 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:11:26,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:11:26,623 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:11:26,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:11:26,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:11:26,624 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:11:26,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:11:26,626 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:11:26,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:11:26,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:11:26,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:11:26,626 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:11:26,627 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:11:26,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:11:26,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:11:26,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:11:26,627 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:11:26,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:11:26,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:11:26,628 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:11:26,628 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:11:26,628 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 03:11:27,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:11:27,131 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:11:27,136 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:11:27,139 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:11:27,139 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:11:27,140 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i10_o10-2.c [2020-09-25 03:11:27,241 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f25aa4bd/8a857ce4125d444f998c0d2c56231c15/FLAG91f5d4aa4 [2020-09-25 03:11:27,842 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:11:27,843 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i10_o10-2.c [2020-09-25 03:11:27,850 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f25aa4bd/8a857ce4125d444f998c0d2c56231c15/FLAG91f5d4aa4 [2020-09-25 03:11:28,212 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f25aa4bd/8a857ce4125d444f998c0d2c56231c15 [2020-09-25 03:11:28,227 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:11:28,234 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:11:28,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:11:28,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:11:28,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:11:28,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:11:28" (1/1) ... [2020-09-25 03:11:28,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66612ad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:28, skipping insertion in model container [2020-09-25 03:11:28,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:11:28" (1/1) ... [2020-09-25 03:11:28,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:11:28,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:11:28,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:11:28,519 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:11:28,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:11:28,553 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:11:28,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:28 WrapperNode [2020-09-25 03:11:28,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:11:28,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:11:28,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:11:28,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:11:28,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:28" (1/1) ... [2020-09-25 03:11:28,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:28" (1/1) ... [2020-09-25 03:11:28,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:28" (1/1) ... [2020-09-25 03:11:28,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:28" (1/1) ... [2020-09-25 03:11:28,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:28" (1/1) ... [2020-09-25 03:11:28,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:28" (1/1) ... [2020-09-25 03:11:28,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:28" (1/1) ... [2020-09-25 03:11:28,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:11:28,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:11:28,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:11:28,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:11:28,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:28" (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 03:11:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:11:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:11:28,737 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-25 03:11:28,737 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:11:28,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:11:28,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:11:28,737 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-25 03:11:28,738 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:11:28,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:11:28,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:11:28,932 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:11:28,932 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 03:11:28,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:11:28 BoogieIcfgContainer [2020-09-25 03:11:28,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:11:28,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:11:28,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:11:28,943 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:11:28,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:11:28" (1/3) ... [2020-09-25 03:11:28,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b2b7cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:11:28, skipping insertion in model container [2020-09-25 03:11:28,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:28" (2/3) ... [2020-09-25 03:11:28,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b2b7cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:11:28, skipping insertion in model container [2020-09-25 03:11:28,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:11:28" (3/3) ... [2020-09-25 03:11:28,948 INFO L109 eAbstractionObserver]: Analyzing ICFG id_i10_o10-2.c [2020-09-25 03:11:28,961 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:11:28,972 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:11:29,018 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:11:29,064 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:11:29,065 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:11:29,065 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:11:29,065 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:11:29,065 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:11:29,065 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:11:29,066 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:11:29,066 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:11:29,091 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-09-25 03:11:29,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 03:11:29,102 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:29,103 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:29,103 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:29,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:29,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1037734449, now seen corresponding path program 1 times [2020-09-25 03:11:29,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:29,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [357959997] [2020-09-25 03:11:29,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:29,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:29,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:29,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:11:29,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:29,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 03:11:29,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:29,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:11:29,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:11:29,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:29,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:11:29,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:29,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:29,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:29,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:29,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:29,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:11:29,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:29,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:29,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:29,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:29,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:29,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:29,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:29,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:29,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:29,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:29,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 03:11:29,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:29,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:11:29,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:11:29,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:11:29,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:29,447 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 03:11:29,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [357959997] [2020-09-25 03:11:29,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:11:29,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:11:29,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741782766] [2020-09-25 03:11:29,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:11:29,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:29,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:11:29,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:11:29,482 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states. [2020-09-25 03:11:29,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:29,576 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-25 03:11:29,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 03:11:29,579 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 03:11:29,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:29,591 INFO L225 Difference]: With dead ends: 37 [2020-09-25 03:11:29,592 INFO L226 Difference]: Without dead ends: 23 [2020-09-25 03:11:29,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:11:29,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-09-25 03:11:29,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-09-25 03:11:29,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-09-25 03:11:29,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-09-25 03:11:29,655 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16 [2020-09-25 03:11:29,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:29,656 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-09-25 03:11:29,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:11:29,656 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-09-25 03:11:29,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 03:11:29,658 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:29,659 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:29,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:11:29,660 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:29,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:29,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1478812441, now seen corresponding path program 1 times [2020-09-25 03:11:29,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:29,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1019162137] [2020-09-25 03:11:29,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:29,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:29,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:29,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:29,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 03:11:29,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:29,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 03:11:29,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:29,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:29,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:11:29,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 03:11:29,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:29,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:29,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:29,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:29,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:29,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:29,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:11:29,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:29,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:29,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:29,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:29,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:29,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:29,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:30,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:30,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:11:30,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:30,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 03:11:30,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:30,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:30,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:11:30,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 03:11:30,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:30,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:30,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:30,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:30,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:30,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:30,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 03:11:30,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:30,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:30,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:30,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:11:30,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:30,131 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 03:11:30,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1019162137] [2020-09-25 03:11:30,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:30,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 03:11:30,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348492489] [2020-09-25 03:11:30,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:11:30,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:30,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:11:30,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:11:30,138 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 7 states. [2020-09-25 03:11:30,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:30,227 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-09-25 03:11:30,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 03:11:30,228 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-09-25 03:11:30,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:30,230 INFO L225 Difference]: With dead ends: 34 [2020-09-25 03:11:30,230 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 03:11:30,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:11:30,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 03:11:30,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 03:11:30,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 03:11:30,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-09-25 03:11:30,241 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 24 [2020-09-25 03:11:30,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:30,241 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-09-25 03:11:30,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:11:30,242 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-09-25 03:11:30,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 03:11:30,243 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:30,243 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:30,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:11:30,244 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:30,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:30,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1463730447, now seen corresponding path program 2 times [2020-09-25 03:11:30,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:30,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [61273980] [2020-09-25 03:11:30,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:30,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:30,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:30,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 03:11:30,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:30,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-09-25 03:11:30,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:30,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:11:30,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:11:30,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 03:11:30,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:30,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:30,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:30,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:30,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:30,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:30,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:11:30,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:30,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:30,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:30,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:30,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:30,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:30,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:30,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:30,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:11:30,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:30,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 03:11:30,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:30,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:11:30,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:11:30,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 03:11:30,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:30,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:30,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:30,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:30,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:11:30,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:30,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 03:11:30,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:30,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:30,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:30,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:11:30,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:30,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:30,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:30,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:30,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:30,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:30,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:11:30,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:30,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:30,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:30,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:11:30,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:30,835 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 03:11:30,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [61273980] [2020-09-25 03:11:30,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:30,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 03:11:30,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833335094] [2020-09-25 03:11:30,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 03:11:30,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:30,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 03:11:30,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:11:30,838 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 8 states. [2020-09-25 03:11:30,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:30,909 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-25 03:11:30,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 03:11:30,910 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2020-09-25 03:11:30,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:30,912 INFO L225 Difference]: With dead ends: 39 [2020-09-25 03:11:30,912 INFO L226 Difference]: Without dead ends: 33 [2020-09-25 03:11:30,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:11:30,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-25 03:11:30,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-25 03:11:30,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-25 03:11:30,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-09-25 03:11:30,921 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 32 [2020-09-25 03:11:30,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:30,921 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-09-25 03:11:30,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 03:11:30,922 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-09-25 03:11:30,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 03:11:30,923 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:30,923 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:30,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:11:30,924 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:30,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:30,924 INFO L82 PathProgramCache]: Analyzing trace with hash 23346727, now seen corresponding path program 3 times [2020-09-25 03:11:30,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:30,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [944389967] [2020-09-25 03:11:30,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:30,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:31,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:31,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 03:11:31,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:31,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-25 03:11:31,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:31,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:11:31,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:11:31,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:11:31,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:31,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:31,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:31,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:31,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:31,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:31,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:31,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:11:31,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:31,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:31,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:31,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:31,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:31,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:31,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:31,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:31,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:11:31,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:31,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-25 03:11:31,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:31,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:11:31,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:11:31,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 03:11:31,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:31,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:31,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:31,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:31,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:11:31,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:31,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 03:11:31,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:31,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:31,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:31,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:11:31,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:31,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:31,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:31,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:31,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:31,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:11:31,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:31,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 03:11:31,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:31,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:31,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:31,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:11:31,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:31,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:31,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:31,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:31,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:31,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:31,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:31,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:11:31,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:31,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:31,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:31,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:11:31,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:31,671 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 03:11:31,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [944389967] [2020-09-25 03:11:31,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:31,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 03:11:31,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776305706] [2020-09-25 03:11:31,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 03:11:31,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:31,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 03:11:31,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:11:31,678 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 10 states. [2020-09-25 03:11:31,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:31,783 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-09-25 03:11:31,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 03:11:31,784 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 40 [2020-09-25 03:11:31,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:31,785 INFO L225 Difference]: With dead ends: 44 [2020-09-25 03:11:31,786 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 03:11:31,787 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-09-25 03:11:31,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 03:11:31,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-25 03:11:31,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 03:11:31,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-25 03:11:31,795 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 40 [2020-09-25 03:11:31,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:31,796 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-25 03:11:31,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 03:11:31,796 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-25 03:11:31,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-25 03:11:31,798 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:31,798 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:31,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:11:31,799 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:31,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:31,800 INFO L82 PathProgramCache]: Analyzing trace with hash -649675855, now seen corresponding path program 4 times [2020-09-25 03:11:31,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:31,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1443921577] [2020-09-25 03:11:31,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:31,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:32,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:32,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 03:11:32,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:32,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-25 03:11:32,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:32,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:11:32,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:11:32,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 03:11:32,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:32,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:32,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:32,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:32,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:32,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:32,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:32,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:32,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:32,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:32,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:32,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:32,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:32,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:32,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:32,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:32,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:11:32,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:32,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-09-25 03:11:32,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:32,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:11:32,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:11:32,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 03:11:32,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:32,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:32,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:32,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:32,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:11:32,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:32,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-25 03:11:32,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:32,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:11:32,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:32,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 03:11:32,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:32,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:32,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:32,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:32,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:11:32,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:32,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 03:11:32,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:32,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:32,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:32,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:11:32,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:32,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:32,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:32,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:32,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:11:32,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:32,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 03:11:32,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:32,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:32,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:32,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:11:32,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:32,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:32,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:32,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:32,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:32,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:32,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:11:32,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:32,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:32,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:32,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:11:32,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:32,725 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 6 proven. 39 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-25 03:11:32,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1443921577] [2020-09-25 03:11:32,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:32,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 03:11:32,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607510294] [2020-09-25 03:11:32,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 03:11:32,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:32,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 03:11:32,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:11:32,728 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 10 states. [2020-09-25 03:11:32,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:32,828 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-09-25 03:11:32,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 03:11:32,829 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48 [2020-09-25 03:11:32,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:32,831 INFO L225 Difference]: With dead ends: 49 [2020-09-25 03:11:32,831 INFO L226 Difference]: Without dead ends: 43 [2020-09-25 03:11:32,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 03:11:32,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-25 03:11:32,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-09-25 03:11:32,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-25 03:11:32,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-09-25 03:11:32,840 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 48 [2020-09-25 03:11:32,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:32,841 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-09-25 03:11:32,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 03:11:32,841 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-09-25 03:11:32,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 03:11:32,843 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:32,843 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:32,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:11:32,844 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:32,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:32,844 INFO L82 PathProgramCache]: Analyzing trace with hash 899977063, now seen corresponding path program 5 times [2020-09-25 03:11:32,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:32,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951124039] [2020-09-25 03:11:32,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:32,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:33,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:33,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 03:11:33,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:33,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-09-25 03:11:33,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:33,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 03:11:33,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:11:33,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 03:11:33,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:33,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:33,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:33,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:33,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:33,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:33,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:11:33,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:33,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:33,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:33,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:33,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:33,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:33,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:33,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:33,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:11:33,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:33,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-09-25 03:11:33,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:33,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 03:11:33,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:11:33,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 03:11:33,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:33,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:33,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:33,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:33,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:11:33,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:33,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-25 03:11:33,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:33,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:11:33,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:33,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 03:11:33,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:33,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:33,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:33,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:33,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:11:33,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:33,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 03:11:33,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:33,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:11:33,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:33,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 03:11:33,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:33,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:33,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:34,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:11:34,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:34,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 03:11:34,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:34,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:34,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:34,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:11:34,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:34,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:34,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:34,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:34,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:11:34,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:34,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 03:11:34,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:34,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:34,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:34,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:11:34,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:34,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:34,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:34,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:34,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:34,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:11:34,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:34,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:34,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:34,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:11:34,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:34,243 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 5 proven. 68 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-09-25 03:11:34,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951124039] [2020-09-25 03:11:34,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:34,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 03:11:34,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492163927] [2020-09-25 03:11:34,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 03:11:34,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:34,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 03:11:34,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-09-25 03:11:34,246 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 12 states. [2020-09-25 03:11:34,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:34,380 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2020-09-25 03:11:34,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 03:11:34,381 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2020-09-25 03:11:34,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:34,383 INFO L225 Difference]: With dead ends: 54 [2020-09-25 03:11:34,383 INFO L226 Difference]: Without dead ends: 48 [2020-09-25 03:11:34,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=202, Unknown=0, NotChecked=0, Total=306 [2020-09-25 03:11:34,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-25 03:11:34,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-25 03:11:34,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-25 03:11:34,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-09-25 03:11:34,392 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 56 [2020-09-25 03:11:34,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:34,393 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-09-25 03:11:34,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 03:11:34,393 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-09-25 03:11:34,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 03:11:34,395 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:34,395 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:34,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 03:11:34,396 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:34,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:34,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1000802417, now seen corresponding path program 6 times [2020-09-25 03:11:34,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:34,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1665619647] [2020-09-25 03:11:34,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:34,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:34,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:11:34,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:34,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-09-25 03:11:34,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:34,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:11:34,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:11:34,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 03:11:34,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:34,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:34,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:34,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:34,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:34,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:34,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:34,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:34,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:34,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:34,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:34,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:34,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:35,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:35,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:11:35,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:35,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 351 [2020-09-25 03:11:35,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:35,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:11:35,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:11:35,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 03:11:35,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:35,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:35,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:35,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:35,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:35,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:11:35,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:35,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-09-25 03:11:35,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:35,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:11:35,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:35,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 03:11:35,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:35,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:35,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:35,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:35,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:11:35,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:35,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-25 03:11:35,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:35,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:11:35,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:35,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 03:11:35,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:35,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:35,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:35,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:35,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:11:35,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:35,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-25 03:11:35,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:35,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:11:35,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:35,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 03:11:35,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:36,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:36,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:36,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:36,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:11:36,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:36,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-25 03:11:36,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:36,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:36,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:36,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:11:36,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:36,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:36,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:36,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:36,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:11:36,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:36,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 03:11:36,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:36,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:36,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:36,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:11:36,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:36,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:36,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:36,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:36,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:36,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:36,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:11:36,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:36,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:36,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:36,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:11:36,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:36,247 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 5 proven. 105 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-09-25 03:11:36,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1665619647] [2020-09-25 03:11:36,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:36,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 03:11:36,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273677509] [2020-09-25 03:11:36,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 03:11:36,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:36,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 03:11:36,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-09-25 03:11:36,250 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 13 states. [2020-09-25 03:11:36,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:36,395 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-25 03:11:36,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 03:11:36,395 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 64 [2020-09-25 03:11:36,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:36,397 INFO L225 Difference]: With dead ends: 59 [2020-09-25 03:11:36,397 INFO L226 Difference]: Without dead ends: 53 [2020-09-25 03:11:36,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2020-09-25 03:11:36,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-25 03:11:36,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-25 03:11:36,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-25 03:11:36,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2020-09-25 03:11:36,406 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 64 [2020-09-25 03:11:36,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:36,407 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2020-09-25 03:11:36,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 03:11:36,407 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2020-09-25 03:11:36,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 03:11:36,408 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:36,408 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:36,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 03:11:36,409 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:36,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:36,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1977618599, now seen corresponding path program 7 times [2020-09-25 03:11:36,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:36,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1382903773] [2020-09-25 03:11:36,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:36,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:36,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:36,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-25 03:11:36,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:36,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 501 [2020-09-25 03:11:36,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:36,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 03:11:36,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:11:36,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 03:11:36,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:36,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:36,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:36,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:36,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:36,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:36,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:11:36,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:36,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:36,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:36,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:36,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:36,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:37,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:37,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:37,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 03:11:37,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:37,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 425 [2020-09-25 03:11:37,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:37,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 03:11:37,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:11:37,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 03:11:37,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:37,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:37,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:37,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:37,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:11:37,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:37,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 354 [2020-09-25 03:11:37,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:37,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:11:37,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:37,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 03:11:37,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:37,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:37,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:38,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:38,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:11:38,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:38,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-25 03:11:38,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:38,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:11:38,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:38,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 03:11:38,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:38,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:38,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:38,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:38,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:11:38,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:38,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-09-25 03:11:38,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:38,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:11:38,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:38,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 03:11:38,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:38,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:38,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:38,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:38,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:11:38,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:38,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 03:11:38,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:38,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:11:38,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:38,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 03:11:38,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:38,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:38,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:38,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:38,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:38,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:11:38,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:38,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-25 03:11:38,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:38,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:38,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:38,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:11:38,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:38,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:38,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:38,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:38,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:11:38,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:38,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 03:11:38,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:38,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:38,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:38,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:11:38,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 18 [2020-09-25 03:11:38,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:38,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:38,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:38,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:38,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:38,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:11:38,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:38,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:38,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:38,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:11:38,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:38,782 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 10 proven. 136 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-09-25 03:11:38,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1382903773] [2020-09-25 03:11:38,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:38,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 03:11:38,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437271217] [2020-09-25 03:11:38,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 03:11:38,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:38,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 03:11:38,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 03:11:38,786 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 13 states. [2020-09-25 03:11:38,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:38,934 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-09-25 03:11:38,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 03:11:38,935 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 72 [2020-09-25 03:11:38,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:38,937 INFO L225 Difference]: With dead ends: 64 [2020-09-25 03:11:38,937 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 03:11:38,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-09-25 03:11:38,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 03:11:38,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-25 03:11:38,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 03:11:38,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-25 03:11:38,946 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 72 [2020-09-25 03:11:38,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:38,946 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-25 03:11:38,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 03:11:38,947 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-25 03:11:38,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 03:11:38,948 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:38,948 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:38,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 03:11:38,949 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:38,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:38,949 INFO L82 PathProgramCache]: Analyzing trace with hash 555623729, now seen corresponding path program 8 times [2020-09-25 03:11:38,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:38,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [554265593] [2020-09-25 03:11:38,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:38,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:39,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:39,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-25 03:11:39,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:39,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 511 [2020-09-25 03:11:39,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 03:11:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:11:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 03:11:39,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:39,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:39,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:39,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:39,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:39,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:39,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:39,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:39,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:39,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:39,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:39,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:39,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:39,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:39,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:39,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 03:11:39,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:39,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 482 [2020-09-25 03:11:39,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:39,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 03:11:39,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:11:39,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 03:11:39,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:40,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:40,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:40,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:40,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 03:11:40,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:40,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 420 [2020-09-25 03:11:40,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:40,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:11:40,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:40,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 03:11:40,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:40,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:40,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:40,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:40,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:11:40,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:40,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-09-25 03:11:40,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:40,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:11:40,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:40,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 03:11:40,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:40,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:40,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:41,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:41,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:11:41,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:41,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-25 03:11:41,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:11:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 03:11:41,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:41,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:41,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:41,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:41,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:11:41,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:41,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-25 03:11:41,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:41,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:11:41,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:41,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 03:11:41,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:41,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:41,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:41,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:41,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:11:41,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:41,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 03:11:41,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:41,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:11:41,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:41,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 03:11:41,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:41,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:41,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:41,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:41,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:11:41,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:41,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 03:11:41,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:41,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:41,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:41,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:11:41,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:41,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:41,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:41,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:41,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:11:41,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:41,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 03:11:41,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:41,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:41,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:41,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:11:41,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:11:41,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:41,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:41,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:41,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:41,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:41,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:11:41,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:41,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:41,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:41,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:11:41,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:41,782 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 16 proven. 166 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-09-25 03:11:41,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [554265593] [2020-09-25 03:11:41,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:41,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 03:11:41,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051999545] [2020-09-25 03:11:41,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 03:11:41,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:41,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 03:11:41,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-09-25 03:11:41,790 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 14 states. [2020-09-25 03:11:41,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:41,944 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2020-09-25 03:11:41,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 03:11:41,945 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 80 [2020-09-25 03:11:41,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:41,946 INFO L225 Difference]: With dead ends: 69 [2020-09-25 03:11:41,948 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 03:11:41,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=327, Unknown=0, NotChecked=0, Total=506 [2020-09-25 03:11:41,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 03:11:41,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-09-25 03:11:41,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 03:11:41,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-09-25 03:11:41,963 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 80 [2020-09-25 03:11:41,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:41,964 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-09-25 03:11:41,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 03:11:41,965 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-09-25 03:11:41,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 03:11:41,966 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:41,966 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:41,966 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 03:11:41,967 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:41,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:41,967 INFO L82 PathProgramCache]: Analyzing trace with hash 777699815, now seen corresponding path program 9 times [2020-09-25 03:11:41,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:41,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392772002] [2020-09-25 03:11:41,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:41,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:42,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:42,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 03:11:42,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:42,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 586 [2020-09-25 03:11:42,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:42,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 03:11:42,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:11:42,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:11:42,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:42,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:42,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:42,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:42,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:42,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:42,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:42,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:42,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:42,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:42,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:42,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:43,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:43,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 03:11:43,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:43,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 607 [2020-09-25 03:11:43,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:43,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 03:11:43,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:11:43,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 03:11:43,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:43,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:43,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:43,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:43,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 03:11:43,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:43,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 567 [2020-09-25 03:11:43,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:43,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 03:11:43,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:43,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 03:11:43,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:43,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:43,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:44,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:44,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 03:11:44,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:44,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 394 [2020-09-25 03:11:44,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:44,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:11:44,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:44,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 03:11:44,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:44,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:44,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:44,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:44,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:11:44,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:44,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-09-25 03:11:44,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:44,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:11:44,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:44,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 03:11:44,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:44,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:44,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:44,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:44,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:11:44,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:44,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-25 03:11:44,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:44,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:11:44,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:44,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 03:11:44,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:44,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:44,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:45,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:45,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:11:45,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:45,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-25 03:11:45,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:45,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:11:45,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:45,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 03:11:45,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:45,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:45,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:45,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:45,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:11:45,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:45,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 03:11:45,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:45,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:11:45,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:45,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 03:11:45,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:45,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:45,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:45,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:45,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:45,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:11:45,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:45,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 03:11:45,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:45,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:45,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:45,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:11:45,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:11:45,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:45,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:45,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:45,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:11:45,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:45,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 03:11:45,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:45,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:45,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:45,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:11:45,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 03:11:45,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:45,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:45,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:45,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:45,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:45,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:11:45,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:45,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:45,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:45,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:11:45,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:11:45,622 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 33 proven. 210 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-09-25 03:11:45,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392772002] [2020-09-25 03:11:45,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:45,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 03:11:45,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947014728] [2020-09-25 03:11:45,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 03:11:45,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:45,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 03:11:45,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 03:11:45,624 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 15 states. [2020-09-25 03:11:45,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:45,787 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2020-09-25 03:11:45,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 03:11:45,787 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 88 [2020-09-25 03:11:45,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:45,789 INFO L225 Difference]: With dead ends: 74 [2020-09-25 03:11:45,789 INFO L226 Difference]: Without dead ends: 68 [2020-09-25 03:11:45,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-09-25 03:11:45,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-25 03:11:45,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-25 03:11:45,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-25 03:11:45,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2020-09-25 03:11:45,796 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 88 [2020-09-25 03:11:45,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:45,797 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2020-09-25 03:11:45,797 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 03:11:45,797 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2020-09-25 03:11:45,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-09-25 03:11:45,798 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:45,798 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:45,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 03:11:45,799 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:45,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:45,799 INFO L82 PathProgramCache]: Analyzing trace with hash 2145915377, now seen corresponding path program 10 times [2020-09-25 03:11:45,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:45,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [177371561] [2020-09-25 03:11:45,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:45,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:45,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:46,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:46,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-25 03:11:46,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:46,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 805 [2020-09-25 03:11:46,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:46,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 03:11:46,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-09-25 03:11:46,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 03:11:46,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:46,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:46,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:46,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:46,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:46,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:46,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:46,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:46,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:46,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:46,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:46,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:46,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:46,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:47,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:47,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 03:11:47,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:47,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 704 [2020-09-25 03:11:47,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:47,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 03:11:47,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:47,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-25 03:11:47,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:47,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:47,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:48,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:48,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 03:11:48,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:48,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 581 [2020-09-25 03:11:48,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:48,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 03:11:48,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:48,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 03:11:48,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:48,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:48,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:48,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:48,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:48,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 03:11:48,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:48,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 454 [2020-09-25 03:11:48,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:48,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:11:48,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:48,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 03:11:48,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:48,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:48,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:48,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:48,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:48,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 03:11:48,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:48,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-09-25 03:11:48,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:48,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:11:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 03:11:48,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:49,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:49,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:49,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:49,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:11:49,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:49,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-09-25 03:11:49,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:49,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:11:49,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:49,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 03:11:49,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:49,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:49,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:49,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:49,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:11:49,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:49,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-09-25 03:11:49,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:49,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:11:49,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:49,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 03:11:49,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:49,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:49,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:49,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:49,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:11:49,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:49,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 03:11:49,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:49,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:11:49,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:49,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 03:11:49,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:49,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:49,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:49,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:49,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:11:49,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:49,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 03:11:49,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:49,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:49,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:49,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 03:11:49,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:50,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:50,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:50,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:50,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:50,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:11:50,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:50,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 03:11:50,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:50,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:50,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:50,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 03:11:50,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:50,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:50,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:50,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:50,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:11:50,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:50,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 03:11:50,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:50,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:50,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:50,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 03:11:50,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:50,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:50,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:50,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:50,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:50,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:50,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:11:50,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:50,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:50,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:50,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:50,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:50,339 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-09-25 03:11:50,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [177371561] [2020-09-25 03:11:50,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:50,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-25 03:11:50,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716016278] [2020-09-25 03:11:50,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-25 03:11:50,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:50,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-25 03:11:50,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-09-25 03:11:50,342 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 25 states. [2020-09-25 03:11:51,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:51,154 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-25 03:11:51,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-25 03:11:51,154 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 96 [2020-09-25 03:11:51,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:51,156 INFO L225 Difference]: With dead ends: 79 [2020-09-25 03:11:51,156 INFO L226 Difference]: Without dead ends: 73 [2020-09-25 03:11:51,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=91, Invalid=1169, Unknown=0, NotChecked=0, Total=1260 [2020-09-25 03:11:51,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-25 03:11:51,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-09-25 03:11:51,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-25 03:11:51,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2020-09-25 03:11:51,170 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 96 [2020-09-25 03:11:51,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:51,176 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2020-09-25 03:11:51,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-25 03:11:51,176 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2020-09-25 03:11:51,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-25 03:11:51,177 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:51,177 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:51,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 03:11:51,178 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:51,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:51,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1180214055, now seen corresponding path program 11 times [2020-09-25 03:11:51,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:51,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281684030] [2020-09-25 03:11:51,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:51,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:51,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:51,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:52,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:52,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-25 03:11:52,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:52,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1596 [2020-09-25 03:11:52,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:52,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 03:11:52,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:11:52,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 03:11:52,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:52,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:52,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:52,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:52,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:52,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:52,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:52,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:52,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:52,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:52,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:52,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:52,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:52,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:53,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:53,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 03:11:53,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:53,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 796 [2020-09-25 03:11:53,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:53,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 03:11:53,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:11:53,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 03:11:53,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:53,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:53,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:54,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:54,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 03:11:54,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:54,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 728 [2020-09-25 03:11:54,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:54,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 03:11:54,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:54,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 03:11:54,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:54,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:54,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:54,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:55,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:55,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 03:11:55,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:55,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 613 [2020-09-25 03:11:55,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:55,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 03:11:55,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:55,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 03:11:55,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:55,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:55,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:55,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:55,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:55,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 03:11:55,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:55,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 472 [2020-09-25 03:11:55,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:55,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 03:11:55,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:55,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 03:11:55,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:55,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:55,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:55,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:55,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 03:11:55,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:55,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-09-25 03:11:55,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:55,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:11:55,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:55,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 03:11:55,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:55,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:55,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:56,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:56,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:11:56,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:56,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-09-25 03:11:56,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:56,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:11:56,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:56,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 03:11:56,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:56,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:56,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:56,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:56,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:11:56,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:56,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-25 03:11:56,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:56,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:11:56,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:56,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 03:11:56,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:56,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:56,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:56,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:56,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:11:56,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:56,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 03:11:56,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:56,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:11:56,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:56,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 03:11:56,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:56,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:56,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:56,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:56,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:11:56,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:56,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 03:11:56,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:56,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:11:56,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:56,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 03:11:56,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:56,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:56,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:56,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:56,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:11:56,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:56,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 03:11:56,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:56,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:56,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:56,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:11:56,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:56,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:56,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:56,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:56,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:11:56,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:56,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 03:11:56,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:56,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:56,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:56,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:11:56,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:56,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:56,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:56,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:56,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:56,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:56,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:11:56,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:56,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:56,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:56,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:11:56,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:57,074 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 317 proven. 31 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2020-09-25 03:11:57,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1281684030] [2020-09-25 03:11:57,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:57,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 03:11:57,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136233665] [2020-09-25 03:11:57,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 03:11:57,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:57,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 03:11:57,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-09-25 03:11:57,076 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 17 states. [2020-09-25 03:11:57,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:57,327 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2020-09-25 03:11:57,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 03:11:57,328 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 104 [2020-09-25 03:11:57,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:57,328 INFO L225 Difference]: With dead ends: 73 [2020-09-25 03:11:57,329 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 03:11:57,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-09-25 03:11:57,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 03:11:57,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 03:11:57,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 03:11:57,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 03:11:57,332 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2020-09-25 03:11:57,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:57,332 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 03:11:57,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 03:11:57,332 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 03:11:57,332 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 03:11:57,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 03:11:57,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 03:11:57,395 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 03:11:57,395 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 03:11:57,396 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 03:11:57,396 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 03:11:57,396 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 03:11:57,396 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 03:11:57,396 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-09-25 03:11:57,396 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 9 15) the Hoare annotation is: true [2020-09-25 03:11:57,396 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 9 15) no Hoare annotation was computed. [2020-09-25 03:11:57,396 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 03:11:57,397 INFO L268 CegarLoopResult]: For program point L12(lines 12 14) no Hoare annotation was computed. [2020-09-25 03:11:57,397 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (and (<= 10 main_~input~0) (<= main_~input~0 10)) [2020-09-25 03:11:57,397 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-09-25 03:11:57,397 INFO L268 CegarLoopResult]: For program point L12-2(lines 9 15) no Hoare annotation was computed. [2020-09-25 03:11:57,397 INFO L268 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-09-25 03:11:57,397 INFO L268 CegarLoopResult]: For program point L11-3(line 11) no Hoare annotation was computed. [2020-09-25 03:11:57,398 INFO L268 CegarLoopResult]: For program point idFINAL(lines 4 7) no Hoare annotation was computed. [2020-09-25 03:11:57,398 INFO L268 CegarLoopResult]: For program point idEXIT(lines 4 7) no Hoare annotation was computed. [2020-09-25 03:11:57,398 INFO L271 CegarLoopResult]: At program point idENTRY(lines 4 7) the Hoare annotation is: true [2020-09-25 03:11:57,398 INFO L264 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: (and (<= id_~x |id_#in~x|) (<= |id_#in~x| id_~x)) [2020-09-25 03:11:57,398 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-25 03:11:57,398 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 03:11:57,398 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-25 03:11:57,399 INFO L268 CegarLoopResult]: For program point L6-2(line 6) no Hoare annotation was computed. [2020-09-25 03:11:57,399 INFO L268 CegarLoopResult]: For program point L6-3(line 6) no Hoare annotation was computed. [2020-09-25 03:11:57,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:11:57 BoogieIcfgContainer [2020-09-25 03:11:57,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 03:11:57,416 INFO L168 Benchmark]: Toolchain (without parser) took 29182.66 ms. Allocated memory was 139.5 MB in the beginning and 472.9 MB in the end (delta: 333.4 MB). Free memory was 102.9 MB in the beginning and 243.6 MB in the end (delta: -140.7 MB). Peak memory consumption was 192.7 MB. Max. memory is 7.1 GB. [2020-09-25 03:11:57,419 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 03:11:57,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.23 ms. Allocated memory is still 139.5 MB. Free memory was 102.2 MB in the beginning and 93.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-09-25 03:11:57,420 INFO L168 Benchmark]: Boogie Preprocessor took 29.42 ms. Allocated memory is still 139.5 MB. Free memory was 93.1 MB in the beginning and 91.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-25 03:11:57,421 INFO L168 Benchmark]: RCFGBuilder took 353.77 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 91.8 MB in the beginning and 169.0 MB in the end (delta: -77.3 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-09-25 03:11:57,426 INFO L168 Benchmark]: TraceAbstraction took 28470.52 ms. Allocated memory was 201.3 MB in the beginning and 472.9 MB in the end (delta: 271.6 MB). Free memory was 169.0 MB in the beginning and 243.6 MB in the end (delta: -74.6 MB). Peak memory consumption was 197.0 MB. Max. memory is 7.1 GB. [2020-09-25 03:11:57,433 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 319.23 ms. Allocated memory is still 139.5 MB. Free memory was 102.2 MB in the beginning and 93.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.42 ms. Allocated memory is still 139.5 MB. Free memory was 93.1 MB in the beginning and 91.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 353.77 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 91.8 MB in the beginning and 169.0 MB in the end (delta: -77.3 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28470.52 ms. Allocated memory was 201.3 MB in the beginning and 472.9 MB in the end (delta: 271.6 MB). Free memory was 169.0 MB in the beginning and 243.6 MB in the end (delta: -74.6 MB). Peak memory consumption was 197.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28.2s, OverallIterations: 12, TraceHistogramMax: 12, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 285 SDtfs, 612 SDslu, 1769 SDs, 0 SdLazy, 1089 SolverSat, 90 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 383 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 203 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 19 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 25.2s InterpolantComputationTime, 720 NumberOfCodeBlocks, 720 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 708 ConstructedInterpolants, 0 QuantifiedInterpolants, 145236 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 1 PerfectInterpolantSequences, 990/2024 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...