/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=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_15-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:32:00,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:32:00,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:32:00,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:32:00,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:32:00,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:32:00,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:32:00,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:32:00,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:32:00,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:32:00,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:32:00,613 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:32:00,614 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:32:00,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:32:00,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:32:00,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:32:00,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:32:00,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:32:00,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:32:00,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:32:00,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:32:00,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:32:00,639 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:32:00,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:32:00,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:32:00,659 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:32:00,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:32:00,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:32:00,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:32:00,664 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:32:00,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:32:00,665 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:32:00,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:32:00,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:32:00,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:32:00,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:32:00,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:32:00,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:32:00,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:32:00,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:32:00,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:32:00,676 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 [2020-09-24 21:32:00,721 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:32:00,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:32:00,723 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:32:00,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:32:00,724 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:32:00,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:32:00,724 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:32:00,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:32:00,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:32:00,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:32:00,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:32:00,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:32:00,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:32:00,726 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:32:00,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:32:00,726 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:32:00,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:32:00,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:32:00,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:32:00,727 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:32:00,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:32:00,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:32:00,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:32:00,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:32:00,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:32:00,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:32:00,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:32:00,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:32:00,729 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:32:00,729 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:32:01,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:32:01,197 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:32:01,201 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:32:01,203 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:32:01,203 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:32:01,204 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_15-1.c [2020-09-24 21:32:01,290 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/267eefbc0/c601bcd1bd70491d8cbf53183e0759bf/FLAG8630ea84d [2020-09-24 21:32:01,818 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:32:01,819 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_15-1.c [2020-09-24 21:32:01,826 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/267eefbc0/c601bcd1bd70491d8cbf53183e0759bf/FLAG8630ea84d [2020-09-24 21:32:02,192 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/267eefbc0/c601bcd1bd70491d8cbf53183e0759bf [2020-09-24 21:32:02,207 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:32:02,213 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:32:02,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:32:02,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:32:02,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:32:02,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:32:02" (1/1) ... [2020-09-24 21:32:02,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d91f9a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:32:02, skipping insertion in model container [2020-09-24 21:32:02,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:32:02" (1/1) ... [2020-09-24 21:32:02,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:32:02,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:32:02,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:32:02,536 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:32:02,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:32:02,581 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:32:02,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:32:02 WrapperNode [2020-09-24 21:32:02,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:32:02,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:32:02,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:32:02,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:32:02,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:32:02" (1/1) ... [2020-09-24 21:32:02,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:32:02" (1/1) ... [2020-09-24 21:32:02,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:32:02" (1/1) ... [2020-09-24 21:32:02,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:32:02" (1/1) ... [2020-09-24 21:32:02,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:32:02" (1/1) ... [2020-09-24 21:32:02,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:32:02" (1/1) ... [2020-09-24 21:32:02,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:32:02" (1/1) ... [2020-09-24 21:32:02,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:32:02,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:32:02,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:32:02,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:32:02,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:32:02" (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 [2020-09-24 21:32:02,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:32:02,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:32:02,791 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-24 21:32:02,792 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:32:02,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:32:02,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:32:02,792 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-24 21:32:02,792 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:32:02,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:32:02,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:32:03,017 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:32:03,018 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 21:32:03,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:32:03 BoogieIcfgContainer [2020-09-24 21:32:03,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:32:03,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:32:03,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:32:03,028 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:32:03,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:32:02" (1/3) ... [2020-09-24 21:32:03,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d88ecba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:32:03, skipping insertion in model container [2020-09-24 21:32:03,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:32:02" (2/3) ... [2020-09-24 21:32:03,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d88ecba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:32:03, skipping insertion in model container [2020-09-24 21:32:03,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:32:03" (3/3) ... [2020-09-24 21:32:03,033 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_15-1.c [2020-09-24 21:32:03,046 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:32:03,060 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:32:03,098 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:32:03,146 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:32:03,146 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:32:03,148 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:32:03,148 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:32:03,148 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:32:03,149 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:32:03,149 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:32:03,149 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:32:03,174 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-24 21:32:03,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 21:32:03,186 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:32:03,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:32:03,187 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:32:03,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:32:03,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-24 21:32:03,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:32:03,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946514518] [2020-09-24 21:32:03,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:32:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:03,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:03,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:03,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 21:32:03,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:03,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 21:32:03,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:03,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:32:03,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:32:03,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:32:03,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:32:03,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:32:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:03,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:03,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:03,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:32:03,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:03,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:32:03,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:03,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:03,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:03,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:03,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:03,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:32:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:03,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:03,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:03,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:03,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:03,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 21:32:03,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:03,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:32:03,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:32:03,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:32:03,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:03,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:32:03,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946514518] [2020-09-24 21:32:03,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:32:03,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:32:03,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422258178] [2020-09-24 21:32:03,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:32:03,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:32:03,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:32:03,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:32:03,547 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-24 21:32:03,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:32:03,675 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-24 21:32:03,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 21:32:03,677 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 21:32:03,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:32:03,690 INFO L225 Difference]: With dead ends: 44 [2020-09-24 21:32:03,691 INFO L226 Difference]: Without dead ends: 28 [2020-09-24 21:32:03,695 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 [2020-09-24 21:32:03,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-24 21:32:03,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-24 21:32:03,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 21:32:03,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-24 21:32:03,749 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-24 21:32:03,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:32:03,749 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-24 21:32:03,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:32:03,750 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-24 21:32:03,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-24 21:32:03,752 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:32:03,752 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:32:03,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:32:03,753 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:32:03,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:32:03,754 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-24 21:32:03,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:32:03,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1577681824] [2020-09-24 21:32:03,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:32:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:03,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:03,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:03,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 21:32:03,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:03,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 21:32:03,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:03,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:32:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:32:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:32:03,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:32:03,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:32:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:03,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:03,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:03,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:32:03,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:03,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:32:03,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:03,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:03,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:03,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:03,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:32:03,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:32:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:03,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:03,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:03,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:03,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:03,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 21:32:03,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:03,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:32:03,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:32:03,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:32:03,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 21:32:04,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:32:04,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1577681824] [2020-09-24 21:32:04,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:32:04,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:32:04,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978356021] [2020-09-24 21:32:04,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:32:04,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:32:04,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:32:04,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:32:04,008 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-24 21:32:04,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:32:04,084 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-24 21:32:04,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 21:32:04,085 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-24 21:32:04,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:32:04,087 INFO L225 Difference]: With dead ends: 36 [2020-09-24 21:32:04,087 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 21:32:04,088 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 [2020-09-24 21:32:04,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 21:32:04,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-24 21:32:04,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 21:32:04,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-24 21:32:04,097 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-24 21:32:04,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:32:04,098 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-24 21:32:04,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:32:04,098 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-24 21:32:04,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 21:32:04,100 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:32:04,100 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] [2020-09-24 21:32:04,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:32:04,100 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:32:04,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:32:04,101 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-24 21:32:04,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:32:04,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1968662885] [2020-09-24 21:32:04,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:32:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:04,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:04,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:04,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:04,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:04,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-24 21:32:04,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:32:04,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 611 [2020-09-24 21:32:04,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:04,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:32:04,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:32:04,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 21:32:04,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:32:04,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:32:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:04,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:04,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:04,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:32:04,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:04,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:32:04,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:04,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:04,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:04,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:04,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:04,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:32:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:04,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:04,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:04,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:05,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:05,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 21:32:05,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:32:05,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 327 [2020-09-24 21:32:05,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:05,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:32:05,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:32:05,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 21:32:05,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:05,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:05,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:05,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:05,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:05,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:05,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:05,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 21:32:05,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:05,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:32:05,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:05,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:32:05,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:05,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:32:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:05,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:05,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:05,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:05,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:05,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:32:05,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:05,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:32:05,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:32:05,234 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 21:32:05,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1968662885] [2020-09-24 21:32:05,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:32:05,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 21:32:05,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561442513] [2020-09-24 21:32:05,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:32:05,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:32:05,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:32:05,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:32:05,243 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 7 states. [2020-09-24 21:32:05,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:32:05,390 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-09-24 21:32:05,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 21:32:05,391 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-24 21:32:05,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:32:05,394 INFO L225 Difference]: With dead ends: 44 [2020-09-24 21:32:05,394 INFO L226 Difference]: Without dead ends: 38 [2020-09-24 21:32:05,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:32:05,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-24 21:32:05,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-09-24 21:32:05,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-24 21:32:05,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-24 21:32:05,406 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-24 21:32:05,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:32:05,407 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-24 21:32:05,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:32:05,407 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-24 21:32:05,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 21:32:05,409 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:32:05,409 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-09-24 21:32:05,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:32:05,410 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:32:05,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:32:05,410 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-24 21:32:05,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:32:05,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1598388725] [2020-09-24 21:32:05,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:32:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:05,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:05,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:05,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:05,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:05,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:05,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 21:32:05,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:32:05,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 525 [2020-09-24 21:32:05,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:05,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:32:05,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:32:05,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 21:32:05,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:32:05,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:32:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:05,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:05,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:05,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:32:05,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:05,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:32:05,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:05,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:05,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:05,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:05,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:32:05,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:32:05,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:05,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:05,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:06,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:06,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:06,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:06,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 21:32:06,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:32:06,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 523 [2020-09-24 21:32:06,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:06,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:32:06,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:32:06,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 21:32:06,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:32:06,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:06,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:06,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:06,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:06,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:06,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 21:32:06,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:06,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:32:06,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:06,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:32:06,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:32:06,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:32:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:06,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:06,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:06,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:06,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:06,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:32:06,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:06,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:06,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:06,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:32:06,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:06,623 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 21:32:06,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1598388725] [2020-09-24 21:32:06,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:32:06,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 21:32:06,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104376010] [2020-09-24 21:32:06,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:32:06,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:32:06,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:32:06,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:32:06,626 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 7 states. [2020-09-24 21:32:06,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:32:06,757 INFO L93 Difference]: Finished difference Result 88 states and 137 transitions. [2020-09-24 21:32:06,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:32:06,757 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-24 21:32:06,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:32:06,761 INFO L225 Difference]: With dead ends: 88 [2020-09-24 21:32:06,761 INFO L226 Difference]: Without dead ends: 58 [2020-09-24 21:32:06,763 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:32:06,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-24 21:32:06,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2020-09-24 21:32:06,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-24 21:32:06,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions. [2020-09-24 21:32:06,779 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 35 [2020-09-24 21:32:06,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:32:06,780 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions. [2020-09-24 21:32:06,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:32:06,780 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2020-09-24 21:32:06,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 21:32:06,783 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:32:06,784 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] [2020-09-24 21:32:06,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:32:06,784 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:32:06,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:32:06,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1693530075, now seen corresponding path program 1 times [2020-09-24 21:32:06,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:32:06,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645269262] [2020-09-24 21:32:06,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:32:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:06,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:06,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:06,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:06,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:06,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:07,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:07,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:11,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:11,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 21:32:11,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 21:32:11,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 21:32:11,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:11,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:32:11,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:32:11,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 21:32:11,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:11,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:32:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:11,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:11,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:11,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:32:11,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:11,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:32:11,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:11,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:11,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:11,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:11,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:32:11,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:32:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:11,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:11,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:11,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:12,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:12,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:12,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:12,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:15,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:15,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 21:32:15,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 21:32:15,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3410 [2020-09-24 21:32:15,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:15,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:32:15,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:32:15,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 21:32:15,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:32:15,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:15,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:15,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:15,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:15,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:15,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 21:32:15,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:32:15,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-09-24 21:32:15,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:15,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:32:15,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:15,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 21:32:15,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:15,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:15,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:15,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:15,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:15,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:15,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:32:15,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:15,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:32:15,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:15,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:32:15,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:15,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:32:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:15,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:15,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:15,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:15,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:15,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:32:15,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:15,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:15,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:15,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:32:15,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:15,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 21:32:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:15,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:15,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:15,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:15,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:15,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:32:15,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:15,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:15,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:15,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:32:15,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:15,568 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 6 proven. 31 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-24 21:32:15,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645269262] [2020-09-24 21:32:15,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:32:15,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 21:32:15,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293018161] [2020-09-24 21:32:15,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:32:15,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:32:15,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:32:15,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:32:15,572 INFO L87 Difference]: Start difference. First operand 50 states and 69 transitions. Second operand 8 states. [2020-09-24 21:32:15,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:32:15,834 INFO L93 Difference]: Finished difference Result 94 states and 148 transitions. [2020-09-24 21:32:15,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 21:32:15,835 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-09-24 21:32:15,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:32:15,840 INFO L225 Difference]: With dead ends: 94 [2020-09-24 21:32:15,841 INFO L226 Difference]: Without dead ends: 88 [2020-09-24 21:32:15,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-24 21:32:15,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-24 21:32:15,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 82. [2020-09-24 21:32:15,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-24 21:32:15,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 132 transitions. [2020-09-24 21:32:15,862 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 132 transitions. Word has length 51 [2020-09-24 21:32:15,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:32:15,863 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 132 transitions. [2020-09-24 21:32:15,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:32:15,863 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 132 transitions. [2020-09-24 21:32:15,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-24 21:32:15,868 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:32:15,868 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] [2020-09-24 21:32:15,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 21:32:15,868 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:32:15,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:32:15,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1161869885, now seen corresponding path program 2 times [2020-09-24 21:32:15,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:32:15,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132578183] [2020-09-24 21:32:15,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:32:15,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:15,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:15,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:15,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:15,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:16,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:16,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:16,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:16,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:16,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:16,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:16,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:17,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:18,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:20,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:20,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-24 21:32:20,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-24 21:32:20,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-24 21:32:20,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:20,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:32:20,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:32:20,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 21:32:20,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:32:20,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:32:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:20,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:20,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:20,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:32:20,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:20,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:32:20,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:20,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:20,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:20,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:20,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:32:20,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:32:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:20,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:21,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:21,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:21,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:21,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:21,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:21,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:21,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:21,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:23,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:23,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:23,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:23,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:25,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:25,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:25,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 21:32:25,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-09-24 21:32:25,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 21:32:25,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:25,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 21:32:25,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 21:32:25,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-24 21:32:25,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:26,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:26,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:26,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:26,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:26,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:26,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:26,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 21:32:26,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:32:26,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 516 [2020-09-24 21:32:26,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:26,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:32:26,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:26,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 21:32:26,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:26,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:26,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:26,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:26,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:26,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:26,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:32:26,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:26,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:26,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:26,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:32:26,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:32:26,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:32:26,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:26,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:26,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:26,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:26,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:26,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:32:26,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:26,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:32:26,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:26,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:32:26,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:26,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 21:32:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:26,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:26,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:26,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:26,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:26,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:26,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:27,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:27,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:27,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:27,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:27,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 21:32:27,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 21:32:27,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 957 [2020-09-24 21:32:27,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:27,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:32:27,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:32:27,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 21:32:27,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:27,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:27,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:27,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:27,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:27,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:27,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:32:27,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:27,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:27,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:27,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:32:27,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:27,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:32:27,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:27,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:27,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:27,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 21:32:27,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:27,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 21:32:27,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:27,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:27,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:27,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 21:32:27,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:27,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:27,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:27,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:27,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:27,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:27,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:32:27,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:27,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:27,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:27,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:27,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:27,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:32:27,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:27,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:27,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:27,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:27,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:27,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:32:27,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:27,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:27,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:27,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:27,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:27,791 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 54 proven. 77 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-24 21:32:27,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132578183] [2020-09-24 21:32:27,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:32:27,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 21:32:27,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245204470] [2020-09-24 21:32:27,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 21:32:27,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:32:27,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 21:32:27,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-09-24 21:32:27,794 INFO L87 Difference]: Start difference. First operand 82 states and 132 transitions. Second operand 14 states. [2020-09-24 21:32:27,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:32:27,996 INFO L93 Difference]: Finished difference Result 157 states and 269 transitions. [2020-09-24 21:32:27,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 21:32:27,998 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 87 [2020-09-24 21:32:27,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:32:28,005 INFO L225 Difference]: With dead ends: 157 [2020-09-24 21:32:28,005 INFO L226 Difference]: Without dead ends: 79 [2020-09-24 21:32:28,010 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-09-24 21:32:28,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-24 21:32:28,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 73. [2020-09-24 21:32:28,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-24 21:32:28,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 95 transitions. [2020-09-24 21:32:28,032 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 95 transitions. Word has length 87 [2020-09-24 21:32:28,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:32:28,033 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 95 transitions. [2020-09-24 21:32:28,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 21:32:28,034 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 95 transitions. [2020-09-24 21:32:28,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-24 21:32:28,043 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:32:28,043 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] [2020-09-24 21:32:28,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 21:32:28,043 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:32:28,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:32:28,044 INFO L82 PathProgramCache]: Analyzing trace with hash -527666429, now seen corresponding path program 3 times [2020-09-24 21:32:28,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:32:28,045 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1578526363] [2020-09-24 21:32:28,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:32:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:28,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:28,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:28,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:28,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:28,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:28,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:28,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:28,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:30,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:30,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:30,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:33,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:33,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-24 21:32:33,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-24 21:32:33,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 21:32:33,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:33,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:32:33,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:32:33,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 21:32:33,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:33,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:32:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:33,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:33,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:33,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:32:33,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:33,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:32:33,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:33,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:33,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:33,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:33,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:33,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:32:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:33,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:33,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:33,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:33,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:33,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:33,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:33,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:33,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:34,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:34,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:38,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:38,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-24 21:32:38,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 21:32:38,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 21:32:38,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:38,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 21:32:38,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 21:32:38,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 21:32:38,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:38,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:38,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:38,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:38,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:38,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:38,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:38,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:39,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:39,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 21:32:39,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 21:32:39,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1345 [2020-09-24 21:32:39,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:39,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:32:39,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:39,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 21:32:39,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:39,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:39,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:39,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:39,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:39,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:39,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 21:32:39,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:39,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:32:39,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:39,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:32:39,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:39,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:32:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:39,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:39,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:39,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 21:32:39,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:39,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 21:32:39,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:39,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:39,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:39,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 21:32:39,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:39,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:39,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:39,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:39,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:39,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:39,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:32:39,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:39,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:39,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:39,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:39,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:39,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:32:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:39,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:39,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:39,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:39,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:39,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:32:39,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:39,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:39,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 21:32:39,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:39,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:39,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:39,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:39,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:39,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:39,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:40,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:40,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:40,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:42,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:42,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-24 21:32:42,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 21:32:42,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2796 [2020-09-24 21:32:42,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:42,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:32:42,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:32:42,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 21:32:42,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:32:42,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:42,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:42,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:42,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:42,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:42,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:42,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:43,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:43,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 21:32:43,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 21:32:43,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 667 [2020-09-24 21:32:43,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:43,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:32:43,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:43,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 21:32:43,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:43,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:43,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:43,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:43,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:43,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:43,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:32:43,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:43,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:43,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:43,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:32:43,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:43,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:32:43,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:43,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:43,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:43,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:43,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:43,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 21:32:43,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:32:43,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 21:32:43,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:43,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:32:43,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:43,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 21:32:43,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:43,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:43,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:43,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:43,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:43,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:43,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:32:43,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:43,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:43,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:43,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:32:43,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:43,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:32:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:43,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:43,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:43,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:43,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:43,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:32:43,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:43,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:43,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:43,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:32:43,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:43,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 21:32:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:43,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:43,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:43,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:43,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:43,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:32:43,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:43,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:43,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:43,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:32:43,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:43,355 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 168 proven. 139 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-09-24 21:32:43,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1578526363] [2020-09-24 21:32:43,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:32:43,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 21:32:43,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641109698] [2020-09-24 21:32:43,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 21:32:43,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:32:43,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 21:32:43,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-09-24 21:32:43,359 INFO L87 Difference]: Start difference. First operand 73 states and 95 transitions. Second operand 12 states. [2020-09-24 21:32:43,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:32:43,689 INFO L93 Difference]: Finished difference Result 132 states and 203 transitions. [2020-09-24 21:32:43,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 21:32:43,689 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 123 [2020-09-24 21:32:43,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:32:43,691 INFO L225 Difference]: With dead ends: 132 [2020-09-24 21:32:43,691 INFO L226 Difference]: Without dead ends: 66 [2020-09-24 21:32:43,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2020-09-24 21:32:43,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-24 21:32:43,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2020-09-24 21:32:43,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-24 21:32:43,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 72 transitions. [2020-09-24 21:32:43,701 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 72 transitions. Word has length 123 [2020-09-24 21:32:43,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:32:43,702 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 72 transitions. [2020-09-24 21:32:43,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 21:32:43,702 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2020-09-24 21:32:43,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-09-24 21:32:43,704 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:32:43,705 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:32:43,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 21:32:43,705 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:32:43,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:32:43,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1885389560, now seen corresponding path program 4 times [2020-09-24 21:32:43,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:32:43,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57018729] [2020-09-24 21:32:43,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:32:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:43,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:43,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:43,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:43,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:43,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:44,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:45,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:47,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:47,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:47,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:47,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:47,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:47,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:47,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:47,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:48,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:48,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-24 21:32:48,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-24 21:32:48,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-24 21:32:48,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:48,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 21:32:48,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:32:48,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 21:32:48,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:48,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:32:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:48,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:48,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:48,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:32:48,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:48,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:32:48,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:48,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:48,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:48,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:48,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:48,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:32:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:48,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:48,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:48,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:48,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:48,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:49,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:49,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:49,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:51,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:51,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:51,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:51,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:51,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:51,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:52,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:52,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:52,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:53,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:53,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-24 21:32:53,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-09-24 21:32:53,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-24 21:32:53,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:53,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 21:32:53,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:32:53,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-24 21:32:53,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:53,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:53,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:53,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:53,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:55,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:55,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 21:32:55,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:32:55,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1371 [2020-09-24 21:32:55,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:55,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 21:32:55,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:55,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 21:32:55,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:55,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:55,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:55,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:55,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:55,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 21:32:55,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:32:55,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-09-24 21:32:55,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:55,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:32:55,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:55,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 21:32:55,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:55,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:55,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:55,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:55,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:55,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:55,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:32:55,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:55,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:32:55,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:55,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:32:55,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:55,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:32:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:55,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:55,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:55,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:55,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:55,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:32:55,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:55,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:55,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:55,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:32:55,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:55,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 21:32:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:55,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:55,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:55,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:55,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:55,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:32:55,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:55,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:55,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:55,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:32:55,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:55,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 21:32:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:55,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:55,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:55,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 21:32:55,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:55,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 21:32:55,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:55,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:55,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:55,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 21:32:55,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:55,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:55,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:55,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:55,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:55,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 21:32:55,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:55,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:32:55,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:55,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:55,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:55,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:55,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:55,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:55,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:55,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:55,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:55,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:55,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:32:55,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:55,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:55,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:55,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:55,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:55,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:32:55,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:55,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:55,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:55,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:55,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:55,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:32:55,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:55,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:55,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:55,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:55,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:55,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 21:32:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:55,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:55,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:55,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:55,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:55,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:32:55,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:55,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:55,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:55,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:55,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:55,507 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 28 proven. 159 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2020-09-24 21:32:55,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57018729] [2020-09-24 21:32:55,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:32:55,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 21:32:55,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988647725] [2020-09-24 21:32:55,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:32:55,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:32:55,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:32:55,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:32:55,509 INFO L87 Difference]: Start difference. First operand 60 states and 72 transitions. Second operand 9 states. [2020-09-24 21:32:55,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:32:55,678 INFO L93 Difference]: Finished difference Result 130 states and 166 transitions. [2020-09-24 21:32:55,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 21:32:55,679 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 105 [2020-09-24 21:32:55,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:32:55,682 INFO L225 Difference]: With dead ends: 130 [2020-09-24 21:32:55,682 INFO L226 Difference]: Without dead ends: 122 [2020-09-24 21:32:55,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-24 21:32:55,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-09-24 21:32:55,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 104. [2020-09-24 21:32:55,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-09-24 21:32:55,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 131 transitions. [2020-09-24 21:32:55,698 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 131 transitions. Word has length 105 [2020-09-24 21:32:55,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:32:55,699 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 131 transitions. [2020-09-24 21:32:55,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:32:55,699 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 131 transitions. [2020-09-24 21:32:55,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-24 21:32:55,702 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:32:55,702 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 15, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:32:55,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 21:32:55,702 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:32:55,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:32:55,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1001388386, now seen corresponding path program 5 times [2020-09-24 21:32:55,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:32:55,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1046505767] [2020-09-24 21:32:55,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:32:55,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:55,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:55,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:55,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:55,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking...