/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/Fibonacci05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:51:58,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:51:58,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:51:58,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:51:58,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:51:58,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:51:58,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:51:58,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:51:58,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:51:58,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:51:58,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:51:58,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:51:58,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:51:58,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:51:58,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:51:58,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:51:58,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:51:58,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:51:58,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:51:58,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:51:58,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:51:58,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:51:58,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:51:58,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:51:58,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:51:58,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:51:58,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:51:58,493 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:51:58,494 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:51:58,495 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:51:58,495 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:51:58,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:51:58,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:51:58,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:51:58,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:51:58,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:51:58,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:51:58,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:51:58,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:51:58,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:51:58,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:51:58,509 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:51:58,535 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:51:58,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:51:58,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:51:58,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:51:58,537 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:51:58,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:51:58,537 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:51:58,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:51:58,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:51:58,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:51:58,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:51:58,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:51:58,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:51:58,539 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:51:58,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:51:58,539 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:51:58,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:51:58,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:51:58,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:51:58,540 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:51:58,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:51:58,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:51:58,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:51:58,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:51:58,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:51:58,541 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:51:58,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:51:58,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:51:58,542 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:51:58,542 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 00:51:59,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:51:59,036 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:51:59,041 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:51:59,043 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:51:59,045 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:51:59,046 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci05.c [2020-09-25 00:51:59,128 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9fe673cda/391fee93c0ea4d76aabfe94d0453a7f0/FLAG4a3156028 [2020-09-25 00:51:59,665 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:51:59,666 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Fibonacci05.c [2020-09-25 00:51:59,674 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9fe673cda/391fee93c0ea4d76aabfe94d0453a7f0/FLAG4a3156028 [2020-09-25 00:52:00,044 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9fe673cda/391fee93c0ea4d76aabfe94d0453a7f0 [2020-09-25 00:52:00,059 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:52:00,066 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:52:00,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:52:00,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:52:00,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:52:00,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:52:00" (1/1) ... [2020-09-25 00:52:00,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4649669f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:00, skipping insertion in model container [2020-09-25 00:52:00,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:52:00" (1/1) ... [2020-09-25 00:52:00,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:52:00,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:52:00,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:52:00,370 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:52:00,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:52:00,400 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:52:00,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:00 WrapperNode [2020-09-25 00:52:00,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:52:00,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:52:00,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:52:00,402 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:52:00,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:00" (1/1) ... [2020-09-25 00:52:00,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:00" (1/1) ... [2020-09-25 00:52:00,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:00" (1/1) ... [2020-09-25 00:52:00,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:00" (1/1) ... [2020-09-25 00:52:00,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:00" (1/1) ... [2020-09-25 00:52:00,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:00" (1/1) ... [2020-09-25 00:52:00,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:00" (1/1) ... [2020-09-25 00:52:00,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:52:00,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:52:00,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:52:00,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:52:00,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:00" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:52:00,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:52:00,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:52:00,582 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-09-25 00:52:00,583 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:52:00,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:52:00,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:52:00,583 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-09-25 00:52:00,584 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:52:00,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:52:00,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:52:00,790 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:52:00,790 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 00:52:00,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:52:00 BoogieIcfgContainer [2020-09-25 00:52:00,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:52:00,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:52:00,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:52:00,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:52:00,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:52:00" (1/3) ... [2020-09-25 00:52:00,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203a4f9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:52:00, skipping insertion in model container [2020-09-25 00:52:00,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:00" (2/3) ... [2020-09-25 00:52:00,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203a4f9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:52:00, skipping insertion in model container [2020-09-25 00:52:00,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:52:00" (3/3) ... [2020-09-25 00:52:00,807 INFO L109 eAbstractionObserver]: Analyzing ICFG Fibonacci05.c [2020-09-25 00:52:00,825 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:52:00,834 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:52:00,880 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:52:00,928 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:52:00,928 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:52:00,929 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:52:00,929 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:52:00,929 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:52:00,929 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:52:00,929 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:52:00,930 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:52:00,949 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-09-25 00:52:00,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-25 00:52:00,956 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:00,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:00,958 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:00,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:00,964 INFO L82 PathProgramCache]: Analyzing trace with hash -2064988448, now seen corresponding path program 1 times [2020-09-25 00:52:00,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:00,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [347848651] [2020-09-25 00:52:00,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:01,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:01,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:52:01,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:01,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 00:52:01,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:01,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:01,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 00:52:01,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 00:52:01,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:52:01,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:01,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:01,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:01,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:01,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:52:01,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:01,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:01,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:01,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:01,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:01,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:52:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:01,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:01,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:01,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:01,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 00:52:01,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:01,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:01,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:01,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:01,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:52:01,381 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 00:52:01,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [347848651] [2020-09-25 00:52:01,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:52:01,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:52:01,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187840931] [2020-09-25 00:52:01,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:52:01,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:01,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:52:01,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:52:01,411 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-09-25 00:52:01,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:01,530 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2020-09-25 00:52:01,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:52:01,532 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-25 00:52:01,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:01,544 INFO L225 Difference]: With dead ends: 48 [2020-09-25 00:52:01,544 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 00:52:01,549 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 00:52:01,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 00:52:01,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-25 00:52:01,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-25 00:52:01,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-09-25 00:52:01,597 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 18 [2020-09-25 00:52:01,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:01,598 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-09-25 00:52:01,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:52:01,598 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-09-25 00:52:01,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 00:52:01,601 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:01,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:01,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:52:01,602 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:01,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:01,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1678486471, now seen corresponding path program 1 times [2020-09-25 00:52:01,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:01,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [292674765] [2020-09-25 00:52:01,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:01,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:01,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 00:52:01,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:01,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 00:52:01,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:01,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:01,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 00:52:01,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 00:52:01,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:01,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:01,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:01,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:01,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:01,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:52:01,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:01,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:01,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:01,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:01,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:01,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:52:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:01,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:01,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:01,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:01,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 00:52:01,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:01,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:01,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:01,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:01,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:01,806 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 00:52:01,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [292674765] [2020-09-25 00:52:01,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:52:01,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:52:01,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642693112] [2020-09-25 00:52:01,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:52:01,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:01,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:52:01,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:52:01,811 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 5 states. [2020-09-25 00:52:01,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:01,880 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2020-09-25 00:52:01,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:52:01,881 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-09-25 00:52:01,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:01,883 INFO L225 Difference]: With dead ends: 38 [2020-09-25 00:52:01,883 INFO L226 Difference]: Without dead ends: 32 [2020-09-25 00:52:01,884 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 00:52:01,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-09-25 00:52:01,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-09-25 00:52:01,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-25 00:52:01,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-09-25 00:52:01,893 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 19 [2020-09-25 00:52:01,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:01,894 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-09-25 00:52:01,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:52:01,894 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-09-25 00:52:01,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 00:52:01,896 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:01,896 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:01,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:52:01,897 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:01,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:01,897 INFO L82 PathProgramCache]: Analyzing trace with hash 961212118, now seen corresponding path program 1 times [2020-09-25 00:52:01,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:01,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13922401] [2020-09-25 00:52:01,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:01,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:01,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:02,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 00:52:02,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:02,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 619 [2020-09-25 00:52:02,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:02,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:02,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 00:52:02,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:02,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:52:02,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:02,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:02,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:02,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:02,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:52:02,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:02,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:02,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:02,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:02,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:02,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:52:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:02,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:02,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 00:52:02,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:02,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 00:52:02,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:02,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:02,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 00:52:02,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:02,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:02,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:02,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:02,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:02,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:02,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:52:02,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:02,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:02,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:02,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:02,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:02,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 00:52:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:02,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:02,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:02,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:02,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:52:02,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:02,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:02,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:52:02,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:02,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:02,746 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 00:52:02,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13922401] [2020-09-25 00:52:02,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:02,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 00:52:02,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407431620] [2020-09-25 00:52:02,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:52:02,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:02,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:52:02,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:52:02,752 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 6 states. [2020-09-25 00:52:02,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:02,862 INFO L93 Difference]: Finished difference Result 54 states and 65 transitions. [2020-09-25 00:52:02,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 00:52:02,863 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-25 00:52:02,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:02,864 INFO L225 Difference]: With dead ends: 54 [2020-09-25 00:52:02,864 INFO L226 Difference]: Without dead ends: 32 [2020-09-25 00:52:02,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:52:02,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-09-25 00:52:02,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-09-25 00:52:02,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-09-25 00:52:02,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2020-09-25 00:52:02,876 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 35 [2020-09-25 00:52:02,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:02,876 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2020-09-25 00:52:02,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:52:02,876 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2020-09-25 00:52:02,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 00:52:02,878 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:02,879 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:02,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:52:02,879 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:02,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:02,880 INFO L82 PathProgramCache]: Analyzing trace with hash -125795935, now seen corresponding path program 1 times [2020-09-25 00:52:02,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:02,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1218676922] [2020-09-25 00:52:02,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:02,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:03,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:03,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 00:52:03,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:03,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-09-25 00:52:03,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:03,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:03,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 00:52:03,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 00:52:03,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:03,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:03,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:03,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:03,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:03,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:03,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:03,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:03,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:03,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:03,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:03,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:03,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:52:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:03,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:03,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:03,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:03,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:03,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:03,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-09-25 00:52:03,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:03,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:03,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:03,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:52:03,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:03,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:03,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:03,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:03,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:03,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:03,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 00:52:03,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:03,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:03,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:03,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:03,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:03,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:03,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:03,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:03,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:03,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:03,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:52:03,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:03,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:03,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:03,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:03,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:03,710 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 00:52:03,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1218676922] [2020-09-25 00:52:03,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:03,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 00:52:03,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665818377] [2020-09-25 00:52:03,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:52:03,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:03,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:52:03,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:52:03,714 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 7 states. [2020-09-25 00:52:03,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:03,852 INFO L93 Difference]: Finished difference Result 72 states and 93 transitions. [2020-09-25 00:52:03,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:52:03,853 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-09-25 00:52:03,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:03,856 INFO L225 Difference]: With dead ends: 72 [2020-09-25 00:52:03,856 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 00:52:03,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:52:03,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 00:52:03,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-09-25 00:52:03,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-25 00:52:03,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2020-09-25 00:52:03,867 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 55 transitions. Word has length 36 [2020-09-25 00:52:03,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:03,868 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 55 transitions. [2020-09-25 00:52:03,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 00:52:03,868 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2020-09-25 00:52:03,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 00:52:03,870 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:03,870 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:03,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:52:03,871 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:03,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:03,871 INFO L82 PathProgramCache]: Analyzing trace with hash 331377205, now seen corresponding path program 2 times [2020-09-25 00:52:03,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:03,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652079732] [2020-09-25 00:52:03,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:03,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:03,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:03,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:04,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:04,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:04,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:05,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:07,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 00:52:07,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 00:52:07,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4059 [2020-09-25 00:52:07,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:07,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:07,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:52:07,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 00:52:07,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 00:52:07,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:07,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:07,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:07,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:07,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:07,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:07,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:07,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:07,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:07,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:07,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:07,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:52:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:07,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:08,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:08,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:08,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:08,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:08,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 00:52:08,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:52:08,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 824 [2020-09-25 00:52:08,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:08,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:08,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:52:08,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 00:52:08,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:08,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:08,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:08,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:08,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:08,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:09,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:09,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:09,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:09,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-25 00:52:09,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:09,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:09,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:09,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:52:09,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:09,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:09,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:09,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:09,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:09,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:09,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:09,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 00:52:09,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:09,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:09,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:09,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:09,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:09,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:09,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:09,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:09,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:09,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:09,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:52:09,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:09,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:09,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:09,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:09,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:09,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:52:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:09,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:09,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:09,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:09,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:09,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:52:09,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:09,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:09,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:09,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:09,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:09,216 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 27 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 00:52:09,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1652079732] [2020-09-25 00:52:09,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:09,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 00:52:09,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376552791] [2020-09-25 00:52:09,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:52:09,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:09,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:52:09,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:52:09,219 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. Second operand 8 states. [2020-09-25 00:52:09,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:09,403 INFO L93 Difference]: Finished difference Result 88 states and 123 transitions. [2020-09-25 00:52:09,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:52:09,404 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-09-25 00:52:09,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:09,406 INFO L225 Difference]: With dead ends: 88 [2020-09-25 00:52:09,408 INFO L226 Difference]: Without dead ends: 52 [2020-09-25 00:52:09,409 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-09-25 00:52:09,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-25 00:52:09,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2020-09-25 00:52:09,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-25 00:52:09,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2020-09-25 00:52:09,424 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 57 transitions. Word has length 53 [2020-09-25 00:52:09,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:09,427 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 57 transitions. [2020-09-25 00:52:09,427 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:52:09,427 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2020-09-25 00:52:09,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 00:52:09,436 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:09,437 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:09,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:52:09,437 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:09,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:09,438 INFO L82 PathProgramCache]: Analyzing trace with hash -2068833840, now seen corresponding path program 3 times [2020-09-25 00:52:09,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:09,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095179393] [2020-09-25 00:52:09,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:09,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:09,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:09,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:11,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:11,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:52:11,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:11,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2324 [2020-09-25 00:52:11,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:11,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:11,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 00:52:11,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 00:52:11,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:52:11,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:11,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:11,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:11,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:11,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:11,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:11,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:11,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:11,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:11,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:11,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:11,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:11,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:52:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:11,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:11,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:11,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:13,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:13,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 00:52:13,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:13,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1597 [2020-09-25 00:52:13,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:13,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:13,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:13,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 00:52:13,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:13,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:13,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:13,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:13,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:13,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:13,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 00:52:13,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:13,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:13,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:13,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 00:52:13,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:13,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:13,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:13,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:13,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:13,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:13,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:13,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:52:13,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:13,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:13,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:13,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:13,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:13,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:13,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:13,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:13,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:13,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:13,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:52:13,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:13,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:13,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:13,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:13,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:13,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:52:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:13,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:13,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:13,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:13,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:13,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 00:52:13,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:13,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:13,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:13,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:13,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:13,532 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 24 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-25 00:52:13,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095179393] [2020-09-25 00:52:13,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:13,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 00:52:13,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108927631] [2020-09-25 00:52:13,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:52:13,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:13,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:52:13,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:52:13,538 INFO L87 Difference]: Start difference. First operand 46 states and 57 transitions. Second operand 6 states. [2020-09-25 00:52:13,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:13,634 INFO L93 Difference]: Finished difference Result 64 states and 78 transitions. [2020-09-25 00:52:13,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 00:52:13,634 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-09-25 00:52:13,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:13,636 INFO L225 Difference]: With dead ends: 64 [2020-09-25 00:52:13,637 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 00:52:13,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:52:13,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 00:52:13,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-25 00:52:13,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 00:52:13,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 72 transitions. [2020-09-25 00:52:13,656 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 72 transitions. Word has length 54 [2020-09-25 00:52:13,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:13,657 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 72 transitions. [2020-09-25 00:52:13,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:52:13,657 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2020-09-25 00:52:13,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-25 00:52:13,660 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:13,661 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:13,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 00:52:13,661 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:13,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:13,662 INFO L82 PathProgramCache]: Analyzing trace with hash -911174345, now seen corresponding path program 4 times [2020-09-25 00:52:13,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:13,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1083387146] [2020-09-25 00:52:13,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:13,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:13,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:13,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:13,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:13,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:13,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:14,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:14,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:14,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:14,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:14,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:14,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:18,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-25 00:52:18,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 00:52:18,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 00:52:18,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:18,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:18,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 00:52:18,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 00:52:18,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:18,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:18,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:18,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:18,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:18,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:18,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:18,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:18,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:18,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:18,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:18,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:52:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:18,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:19,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:19,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:19,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:19,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:20,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:20,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:20,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:21,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:22,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:22,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:22,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:22,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:23,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 00:52:23,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-25 00:52:23,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 00:52:23,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:23,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:23,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-25 00:52:23,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 00:52:23,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:23,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:23,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:23,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:23,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:23,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:52:23,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:23,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:23,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:23,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:23,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:23,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:23,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:23,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:23,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:23,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:52:23,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:23,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:23,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:23,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:23,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:23,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:23,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:23,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:23,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:23,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:52:23,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:23,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:23,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:23,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:23,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:23,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:52:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:23,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:24,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:24,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 00:52:24,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:24,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451 [2020-09-25 00:52:24,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:24,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:24,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:52:24,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 00:52:24,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:24,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:24,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:24,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:24,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:24,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:24,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:24,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:52:24,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:24,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:24,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:24,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:24,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:24,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:24,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:24,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:24,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:24,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:24,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:24,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:24,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 00:52:24,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:24,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:24,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:24,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 00:52:24,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:24,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:24,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:24,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:24,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:24,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:24,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:24,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:52:24,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:24,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:24,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:24,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:24,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:24,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:24,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:24,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:24,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:24,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:24,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:52:24,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:24,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:24,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:24,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:24,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:24,472 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 112 proven. 18 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-09-25 00:52:24,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1083387146] [2020-09-25 00:52:24,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:24,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 00:52:24,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705868369] [2020-09-25 00:52:24,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:52:24,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:24,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:52:24,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:52:24,475 INFO L87 Difference]: Start difference. First operand 58 states and 72 transitions. Second operand 9 states. [2020-09-25 00:52:24,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:24,636 INFO L93 Difference]: Finished difference Result 101 states and 132 transitions. [2020-09-25 00:52:24,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 00:52:24,637 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 89 [2020-09-25 00:52:24,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:24,638 INFO L225 Difference]: With dead ends: 101 [2020-09-25 00:52:24,638 INFO L226 Difference]: Without dead ends: 50 [2020-09-25 00:52:24,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2020-09-25 00:52:24,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-25 00:52:24,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2020-09-25 00:52:24,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-25 00:52:24,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2020-09-25 00:52:24,646 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 89 [2020-09-25 00:52:24,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:24,646 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2020-09-25 00:52:24,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:52:24,646 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2020-09-25 00:52:24,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-25 00:52:24,647 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:24,648 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:24,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 00:52:24,648 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:24,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:24,648 INFO L82 PathProgramCache]: Analyzing trace with hash 4423077, now seen corresponding path program 5 times [2020-09-25 00:52:24,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:24,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1014522439] [2020-09-25 00:52:24,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:24,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:24,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:24,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:24,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:24,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:24,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:24,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:25,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:28,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:29,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:29,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-25 00:52:29,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 00:52:29,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 00:52:29,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:29,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:52:29,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:52:29,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 00:52:29,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:29,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:29,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:29,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:29,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:29,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:29,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:29,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:29,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:29,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:29,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:29,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:29,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:52:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:29,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:29,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:29,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:29,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:29,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:29,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:29,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:33,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:34,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:34,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 00:52:34,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 00:52:34,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 00:52:34,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:34,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:52:34,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:52:34,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 00:52:34,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:34,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:34,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:34,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:34,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:34,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:34,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:34,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-25 00:52:34,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:34,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:34,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:34,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:52:34,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:34,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:34,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:34,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:34,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:34,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:34,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:52:34,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:34,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:34,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:34,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:34,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:34,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:34,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:34,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:34,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:34,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:34,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:52:34,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:34,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:34,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:34,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:34,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:34,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:52:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:34,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:34,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:34,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:34,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:35,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:35,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:37,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 00:52:37,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:52:37,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2129 [2020-09-25 00:52:37,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:37,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:37,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:37,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 00:52:37,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:37,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:37,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:37,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:37,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:37,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 00:52:37,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:37,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:37,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:37,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 00:52:37,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:37,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:37,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:37,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:37,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:37,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:52:37,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:37,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:37,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:37,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:37,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:37,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:37,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:37,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:37,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:37,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:52:37,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:37,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:37,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:37,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:37,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:37,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:52:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:37,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:37,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:37,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:37,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 00:52:37,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:37,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:37,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:37,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:37,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:37,190 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 82 proven. 62 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-09-25 00:52:37,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1014522439] [2020-09-25 00:52:37,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:37,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 00:52:37,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439435048] [2020-09-25 00:52:37,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:52:37,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:37,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:52:37,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:52:37,193 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 10 states. [2020-09-25 00:52:37,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:37,453 INFO L93 Difference]: Finished difference Result 112 states and 153 transitions. [2020-09-25 00:52:37,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 00:52:37,454 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 89 [2020-09-25 00:52:37,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:37,457 INFO L225 Difference]: With dead ends: 112 [2020-09-25 00:52:37,457 INFO L226 Difference]: Without dead ends: 72 [2020-09-25 00:52:37,458 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:52:37,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-25 00:52:37,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 58. [2020-09-25 00:52:37,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 00:52:37,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2020-09-25 00:52:37,468 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 89 [2020-09-25 00:52:37,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:37,469 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2020-09-25 00:52:37,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:52:37,469 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2020-09-25 00:52:37,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 00:52:37,470 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:37,470 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:37,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 00:52:37,471 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:37,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:37,471 INFO L82 PathProgramCache]: Analyzing trace with hash -2047266186, now seen corresponding path program 6 times [2020-09-25 00:52:37,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:37,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [488955633] [2020-09-25 00:52:37,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:37,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:38,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:39,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:39,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:42,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:42,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 00:52:42,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 00:52:42,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 00:52:42,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:42,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:52:42,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:52:42,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 00:52:42,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:42,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:42,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:42,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:42,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:42,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:42,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:42,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:42,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:42,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:42,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:42,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:42,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:42,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:52:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:42,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:42,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:42,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:42,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:42,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:42,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:42,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:45,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:45,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:47,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:47,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 00:52:47,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 00:52:47,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 00:52:47,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:47,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:52:47,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:52:47,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 00:52:47,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:47,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:47,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:47,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:47,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:47,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:47,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:47,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:47,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-09-25 00:52:47,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:47,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:52:47,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:47,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:52:47,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:47,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:47,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:47,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:47,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:47,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:47,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:47,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:47,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:52:47,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:47,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:47,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:47,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:47,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:47,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:47,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:47,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:47,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:47,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:47,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:52:47,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:47,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:47,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:47,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:47,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:48,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:52:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:48,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:48,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:48,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:48,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-25 00:52:48,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:48,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:48,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:48,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 00:52:48,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:48,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:48,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:48,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:48,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:48,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:52:48,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:48,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:48,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:48,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:48,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:48,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:48,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:48,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:48,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:48,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:52:48,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:48,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:48,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:48,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:48,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:48,275 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 36 proven. 53 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-25 00:52:48,275 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [488955633] [2020-09-25 00:52:48,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:48,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 00:52:48,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675820552] [2020-09-25 00:52:48,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 00:52:48,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:48,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 00:52:48,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:52:48,277 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand 11 states. [2020-09-25 00:52:48,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:48,451 INFO L93 Difference]: Finished difference Result 114 states and 141 transitions. [2020-09-25 00:52:48,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 00:52:48,454 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 71 [2020-09-25 00:52:48,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:48,455 INFO L225 Difference]: With dead ends: 114 [2020-09-25 00:52:48,455 INFO L226 Difference]: Without dead ends: 61 [2020-09-25 00:52:48,457 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:52:48,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-25 00:52:48,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 55. [2020-09-25 00:52:48,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-25 00:52:48,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2020-09-25 00:52:48,470 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 71 [2020-09-25 00:52:48,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:48,471 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2020-09-25 00:52:48,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 00:52:48,471 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2020-09-25 00:52:48,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-09-25 00:52:48,472 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:48,472 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:48,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 00:52:48,473 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:48,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:48,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1575340027, now seen corresponding path program 7 times [2020-09-25 00:52:48,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:48,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569615339] [2020-09-25 00:52:48,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:48,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:53,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:53,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-09-25 00:52:53,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-25 00:52:53,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 00:52:53,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:53,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:52:53,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 00:52:53,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:52:53,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:53,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:53,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:53,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:53,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:53,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:53,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:53,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:53,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:53,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:53,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:53,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:53,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:52:53,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:53,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:53,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:53,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:53,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:53,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:53,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:54,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:54,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:55,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:55,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:55,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:55,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:55,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:55,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:55,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:55,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:58,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:58,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:58,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:58,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:58,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 00:52:58,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-09-25 00:52:58,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 00:52:58,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:58,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 00:52:58,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:52:58,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 00:52:58,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:58,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:58,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:58,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:58,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:58,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:58,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:00,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:00,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 00:53:00,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:53:00,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2367 [2020-09-25 00:53:00,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:00,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:53:00,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:00,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 00:53:00,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:00,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:53:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:00,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:01,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking...