/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=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:56:13,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:56:13,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:56:13,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:56:13,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:56:13,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:56:13,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:56:13,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:56:13,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:56:13,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:56:13,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:56:13,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:56:13,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:56:13,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:56:13,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:56:13,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:56:13,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:56:13,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:56:13,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:56:13,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:56:13,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:56:13,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:56:13,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:56:13,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:56:13,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:56:13,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:56:13,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:56:13,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:56:13,793 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:56:13,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:56:13,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:56:13,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:56:13,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:56:13,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:56:13,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:56:13,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:56:13,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:56:13,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:56:13,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:56:13,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:56:13,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:56:13,805 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 22:56:13,855 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:56:13,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:56:13,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:56:13,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:56:13,858 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:56:13,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:56:13,859 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:56:13,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:56:13,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:56:13,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:56:13,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:56:13,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:56:13,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:56:13,861 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:56:13,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:56:13,862 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:56:13,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:56:13,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:56:13,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:56:13,863 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:56:13,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:56:13,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:56:13,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:56:13,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:56:13,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:56:13,864 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:56:13,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:56:13,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:56:13,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:56:13,865 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:56:14,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:56:14,327 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:56:14,332 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:56:14,334 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:56:14,335 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:56:14,336 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2020-09-24 22:56:14,430 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7583b5add/a124d8b8bda6474db23e953168dddf1b/FLAG36b91dc45 [2020-09-24 22:56:14,984 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:56:14,985 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2020-09-24 22:56:14,995 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7583b5add/a124d8b8bda6474db23e953168dddf1b/FLAG36b91dc45 [2020-09-24 22:56:15,323 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7583b5add/a124d8b8bda6474db23e953168dddf1b [2020-09-24 22:56:15,338 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:56:15,344 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:56:15,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:56:15,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:56:15,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:56:15,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:56:15" (1/1) ... [2020-09-24 22:56:15,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@180772d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:56:15, skipping insertion in model container [2020-09-24 22:56:15,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:56:15" (1/1) ... [2020-09-24 22:56:15,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:56:15,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:56:15,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:56:15,738 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:56:15,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:56:15,798 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:56:15,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:56:15 WrapperNode [2020-09-24 22:56:15,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:56:15,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:56:15,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:56:15,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:56:15,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:56:15" (1/1) ... [2020-09-24 22:56:15,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:56:15" (1/1) ... [2020-09-24 22:56:15,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:56:15" (1/1) ... [2020-09-24 22:56:15,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:56:15" (1/1) ... [2020-09-24 22:56:15,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:56:15" (1/1) ... [2020-09-24 22:56:15,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:56:15" (1/1) ... [2020-09-24 22:56:15,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:56:15" (1/1) ... [2020-09-24 22:56:15,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:56:15,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:56:15,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:56:15,974 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:56:15,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:56:15" (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 22:56:16,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:56:16,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:56:16,064 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 22:56:16,064 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:56:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:56:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 22:56:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 22:56:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 22:56:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:56:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:56:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:56:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:56:16,607 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:56:16,607 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 22:56:16,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:56:16 BoogieIcfgContainer [2020-09-24 22:56:16,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:56:16,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:56:16,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:56:16,619 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:56:16,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:56:15" (1/3) ... [2020-09-24 22:56:16,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e5cfd90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:56:16, skipping insertion in model container [2020-09-24 22:56:16,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:56:15" (2/3) ... [2020-09-24 22:56:16,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e5cfd90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:56:16, skipping insertion in model container [2020-09-24 22:56:16,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:56:16" (3/3) ... [2020-09-24 22:56:16,624 INFO L109 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i.v+cfa-reducer.c [2020-09-24 22:56:16,635 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:56:16,646 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-09-24 22:56:16,668 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-09-24 22:56:16,697 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:56:16,697 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:56:16,698 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:56:16,698 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:56:16,698 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:56:16,698 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:56:16,698 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:56:16,698 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:56:16,724 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-09-24 22:56:16,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 22:56:16,732 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:16,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:16,734 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:16,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:16,742 INFO L82 PathProgramCache]: Analyzing trace with hash -2057699390, now seen corresponding path program 1 times [2020-09-24 22:56:16,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:16,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [626901086] [2020-09-24 22:56:16,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:16,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:16,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:17,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:17,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 22:56:17,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:56:17,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 512 [2020-09-24 22:56:17,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:17,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:56:17,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-24 22:56:17,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:56:17,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:56:17,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:17,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:17,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:17,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:17,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:17,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:56:17,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:17,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:17,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:17,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:17,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:56:17,537 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 22:56:17,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [626901086] [2020-09-24 22:56:17,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:17,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 22:56:17,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081315845] [2020-09-24 22:56:17,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 22:56:17,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:17,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 22:56:17,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:56:17,571 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 6 states. [2020-09-24 22:56:18,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:18,382 INFO L93 Difference]: Finished difference Result 435 states and 497 transitions. [2020-09-24 22:56:18,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 22:56:18,385 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-09-24 22:56:18,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:18,404 INFO L225 Difference]: With dead ends: 435 [2020-09-24 22:56:18,404 INFO L226 Difference]: Without dead ends: 264 [2020-09-24 22:56:18,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-09-24 22:56:18,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-09-24 22:56:18,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 154. [2020-09-24 22:56:18,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-24 22:56:18,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 158 transitions. [2020-09-24 22:56:18,486 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 158 transitions. Word has length 30 [2020-09-24 22:56:18,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:18,487 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 158 transitions. [2020-09-24 22:56:18,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 22:56:18,487 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 158 transitions. [2020-09-24 22:56:18,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 22:56:18,488 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:18,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:18,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:56:18,489 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:18,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:18,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1575143415, now seen corresponding path program 1 times [2020-09-24 22:56:18,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:18,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1271482640] [2020-09-24 22:56:18,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:18,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:18,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:18,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 22:56:18,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:18,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-24 22:56:18,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:18,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:56:18,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 22:56:18,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:56:18,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:56:18,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:18,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:18,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:18,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:18,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:18,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:56:18,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:18,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:18,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:18,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:18,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:56:18,711 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 22:56:18,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1271482640] [2020-09-24 22:56:18,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:18,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 22:56:18,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166266096] [2020-09-24 22:56:18,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 22:56:18,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:18,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 22:56:18,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:56:18,718 INFO L87 Difference]: Start difference. First operand 154 states and 158 transitions. Second operand 6 states. [2020-09-24 22:56:19,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:19,200 INFO L93 Difference]: Finished difference Result 223 states and 230 transitions. [2020-09-24 22:56:19,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 22:56:19,200 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-09-24 22:56:19,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:19,209 INFO L225 Difference]: With dead ends: 223 [2020-09-24 22:56:19,209 INFO L226 Difference]: Without dead ends: 221 [2020-09-24 22:56:19,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-09-24 22:56:19,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-09-24 22:56:19,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 152. [2020-09-24 22:56:19,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-09-24 22:56:19,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 156 transitions. [2020-09-24 22:56:19,245 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 156 transitions. Word has length 30 [2020-09-24 22:56:19,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:19,246 INFO L479 AbstractCegarLoop]: Abstraction has 152 states and 156 transitions. [2020-09-24 22:56:19,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 22:56:19,247 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 156 transitions. [2020-09-24 22:56:19,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 22:56:19,248 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:19,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:19,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:56:19,250 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:19,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:19,251 INFO L82 PathProgramCache]: Analyzing trace with hash 949374873, now seen corresponding path program 1 times [2020-09-24 22:56:19,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:19,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1948344830] [2020-09-24 22:56:19,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:19,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:19,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:19,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-24 22:56:19,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:19,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 22:56:19,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:19,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:56:19,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 22:56:19,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 22:56:19,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:19,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:19,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:19,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:19,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:19,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:19,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:56:19,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:19,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:19,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:19,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:19,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:19,419 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 22:56:19,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1948344830] [2020-09-24 22:56:19,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:19,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 22:56:19,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126348303] [2020-09-24 22:56:19,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 22:56:19,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:19,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 22:56:19,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:56:19,421 INFO L87 Difference]: Start difference. First operand 152 states and 156 transitions. Second operand 6 states. [2020-09-24 22:56:19,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:19,834 INFO L93 Difference]: Finished difference Result 263 states and 271 transitions. [2020-09-24 22:56:19,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 22:56:19,835 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-24 22:56:19,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:19,837 INFO L225 Difference]: With dead ends: 263 [2020-09-24 22:56:19,837 INFO L226 Difference]: Without dead ends: 261 [2020-09-24 22:56:19,838 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:56:19,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-09-24 22:56:19,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 150. [2020-09-24 22:56:19,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-09-24 22:56:19,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 154 transitions. [2020-09-24 22:56:19,853 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 154 transitions. Word has length 35 [2020-09-24 22:56:19,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:19,853 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 154 transitions. [2020-09-24 22:56:19,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 22:56:19,853 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 154 transitions. [2020-09-24 22:56:19,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 22:56:19,855 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:19,855 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:19,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:56:19,856 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:19,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:19,856 INFO L82 PathProgramCache]: Analyzing trace with hash 386303974, now seen corresponding path program 1 times [2020-09-24 22:56:19,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:19,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1419268794] [2020-09-24 22:56:19,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:19,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:19,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:19,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-24 22:56:19,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:19,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 22:56:19,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:19,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:56:19,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 22:56:19,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 22:56:19,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:19,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:19,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:19,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:19,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:19,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:19,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:19,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:19,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:19,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:19,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:19,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:19,982 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 22:56:19,982 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1419268794] [2020-09-24 22:56:19,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:19,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 22:56:19,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843245616] [2020-09-24 22:56:19,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 22:56:19,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:19,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 22:56:19,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:56:19,984 INFO L87 Difference]: Start difference. First operand 150 states and 154 transitions. Second operand 6 states. [2020-09-24 22:56:20,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:20,298 INFO L93 Difference]: Finished difference Result 192 states and 199 transitions. [2020-09-24 22:56:20,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 22:56:20,298 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-24 22:56:20,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:20,300 INFO L225 Difference]: With dead ends: 192 [2020-09-24 22:56:20,300 INFO L226 Difference]: Without dead ends: 190 [2020-09-24 22:56:20,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:56:20,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-09-24 22:56:20,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 148. [2020-09-24 22:56:20,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-09-24 22:56:20,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 152 transitions. [2020-09-24 22:56:20,328 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 152 transitions. Word has length 35 [2020-09-24 22:56:20,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:20,329 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 152 transitions. [2020-09-24 22:56:20,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 22:56:20,329 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 152 transitions. [2020-09-24 22:56:20,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-24 22:56:20,334 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:20,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:20,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:56:20,338 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:20,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:20,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1765112685, now seen corresponding path program 1 times [2020-09-24 22:56:20,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:20,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1576785772] [2020-09-24 22:56:20,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:20,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:20,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:20,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 22:56:20,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:20,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-24 22:56:20,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:20,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:56:20,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:56:20,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:56:20,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:20,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:20,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:20,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:20,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:20,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:20,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:20,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:20,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:20,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:20,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:20,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:20,558 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 22:56:20,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1576785772] [2020-09-24 22:56:20,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:20,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 22:56:20,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697628530] [2020-09-24 22:56:20,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 22:56:20,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:20,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 22:56:20,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:56:20,561 INFO L87 Difference]: Start difference. First operand 148 states and 152 transitions. Second operand 7 states. [2020-09-24 22:56:21,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:21,150 INFO L93 Difference]: Finished difference Result 262 states and 270 transitions. [2020-09-24 22:56:21,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 22:56:21,150 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2020-09-24 22:56:21,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:21,153 INFO L225 Difference]: With dead ends: 262 [2020-09-24 22:56:21,154 INFO L226 Difference]: Without dead ends: 260 [2020-09-24 22:56:21,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:56:21,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-09-24 22:56:21,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 146. [2020-09-24 22:56:21,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-24 22:56:21,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 150 transitions. [2020-09-24 22:56:21,182 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 150 transitions. Word has length 40 [2020-09-24 22:56:21,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:21,182 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 150 transitions. [2020-09-24 22:56:21,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 22:56:21,183 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 150 transitions. [2020-09-24 22:56:21,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-24 22:56:21,184 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:21,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:21,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 22:56:21,188 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:21,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:21,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1900232348, now seen corresponding path program 1 times [2020-09-24 22:56:21,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:21,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68229140] [2020-09-24 22:56:21,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:21,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:21,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:21,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-24 22:56:21,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:21,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-24 22:56:21,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:21,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:56:21,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-24 22:56:21,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:56:21,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:21,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:21,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:21,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:21,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:21,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:21,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:21,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:56:21,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:21,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:21,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:21,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:21,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:21,400 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 22:56:21,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [68229140] [2020-09-24 22:56:21,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:21,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 22:56:21,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60715571] [2020-09-24 22:56:21,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 22:56:21,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:21,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 22:56:21,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:56:21,404 INFO L87 Difference]: Start difference. First operand 146 states and 150 transitions. Second operand 6 states. [2020-09-24 22:56:21,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:21,821 INFO L93 Difference]: Finished difference Result 267 states and 275 transitions. [2020-09-24 22:56:21,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 22:56:21,822 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2020-09-24 22:56:21,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:21,829 INFO L225 Difference]: With dead ends: 267 [2020-09-24 22:56:21,829 INFO L226 Difference]: Without dead ends: 265 [2020-09-24 22:56:21,830 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:56:21,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-24 22:56:21,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 144. [2020-09-24 22:56:21,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-09-24 22:56:21,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 148 transitions. [2020-09-24 22:56:21,852 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 148 transitions. Word has length 45 [2020-09-24 22:56:21,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:21,853 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 148 transitions. [2020-09-24 22:56:21,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 22:56:21,853 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 148 transitions. [2020-09-24 22:56:21,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-24 22:56:21,858 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:21,858 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:21,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 22:56:21,858 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:21,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:21,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1678067487, now seen corresponding path program 1 times [2020-09-24 22:56:21,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:21,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [661300291] [2020-09-24 22:56:21,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:21,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:21,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:21,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:21,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:22,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:22,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-24 22:56:22,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:56:22,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 441 [2020-09-24 22:56:22,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:22,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:56:22,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-09-24 22:56:22,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 22:56:22,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:22,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:22,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:22,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:22,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:22,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:22,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:22,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:22,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:22,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:22,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:22,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:56:22,566 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 22:56:22,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [661300291] [2020-09-24 22:56:22,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:22,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:56:22,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059731062] [2020-09-24 22:56:22,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:56:22,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:22,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:56:22,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:56:22,571 INFO L87 Difference]: Start difference. First operand 144 states and 148 transitions. Second operand 8 states. [2020-09-24 22:56:23,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:23,002 INFO L93 Difference]: Finished difference Result 194 states and 202 transitions. [2020-09-24 22:56:23,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 22:56:23,003 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-09-24 22:56:23,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:23,004 INFO L225 Difference]: With dead ends: 194 [2020-09-24 22:56:23,005 INFO L226 Difference]: Without dead ends: 192 [2020-09-24 22:56:23,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:56:23,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-24 22:56:23,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 142. [2020-09-24 22:56:23,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-09-24 22:56:23,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 146 transitions. [2020-09-24 22:56:23,014 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 146 transitions. Word has length 45 [2020-09-24 22:56:23,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:23,014 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 146 transitions. [2020-09-24 22:56:23,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:56:23,015 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 146 transitions. [2020-09-24 22:56:23,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-24 22:56:23,016 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:23,016 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:23,016 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 22:56:23,017 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:23,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:23,017 INFO L82 PathProgramCache]: Analyzing trace with hash 776869197, now seen corresponding path program 1 times [2020-09-24 22:56:23,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:23,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [621234729] [2020-09-24 22:56:23,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:23,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:23,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:23,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:23,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 22:56:23,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:56:23,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-24 22:56:23,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:23,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:56:23,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 22:56:23,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 22:56:23,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:23,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:23,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:23,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:23,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:23,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:23,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:23,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:23,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:23,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:23,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:23,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:23,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:23,362 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 22:56:23,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [621234729] [2020-09-24 22:56:23,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:23,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:56:23,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129769430] [2020-09-24 22:56:23,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:56:23,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:23,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:56:23,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:56:23,365 INFO L87 Difference]: Start difference. First operand 142 states and 146 transitions. Second operand 8 states. [2020-09-24 22:56:24,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:24,080 INFO L93 Difference]: Finished difference Result 233 states and 244 transitions. [2020-09-24 22:56:24,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 22:56:24,081 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2020-09-24 22:56:24,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:24,083 INFO L225 Difference]: With dead ends: 233 [2020-09-24 22:56:24,084 INFO L226 Difference]: Without dead ends: 231 [2020-09-24 22:56:24,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:56:24,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-09-24 22:56:24,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 140. [2020-09-24 22:56:24,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-09-24 22:56:24,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 144 transitions. [2020-09-24 22:56:24,092 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 144 transitions. Word has length 50 [2020-09-24 22:56:24,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:24,092 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 144 transitions. [2020-09-24 22:56:24,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:56:24,092 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 144 transitions. [2020-09-24 22:56:24,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-24 22:56:24,093 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:24,093 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:24,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 22:56:24,094 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:24,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:24,094 INFO L82 PathProgramCache]: Analyzing trace with hash -828388948, now seen corresponding path program 1 times [2020-09-24 22:56:24,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:24,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [626766430] [2020-09-24 22:56:24,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:24,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:24,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:24,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-24 22:56:24,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:24,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 22:56:24,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:24,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:56:24,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:56:24,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 22:56:24,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:24,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:24,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:24,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:24,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:24,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:24,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:24,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:24,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:24,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:24,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:24,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:24,304 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 22:56:24,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [626766430] [2020-09-24 22:56:24,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:24,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 22:56:24,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500584080] [2020-09-24 22:56:24,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 22:56:24,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:24,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 22:56:24,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:56:24,307 INFO L87 Difference]: Start difference. First operand 140 states and 144 transitions. Second operand 7 states. [2020-09-24 22:56:24,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:24,690 INFO L93 Difference]: Finished difference Result 198 states and 206 transitions. [2020-09-24 22:56:24,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 22:56:24,691 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2020-09-24 22:56:24,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:24,693 INFO L225 Difference]: With dead ends: 198 [2020-09-24 22:56:24,693 INFO L226 Difference]: Without dead ends: 196 [2020-09-24 22:56:24,694 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:56:24,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-09-24 22:56:24,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 138. [2020-09-24 22:56:24,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-24 22:56:24,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 142 transitions. [2020-09-24 22:56:24,704 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 142 transitions. Word has length 55 [2020-09-24 22:56:24,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:24,704 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 142 transitions. [2020-09-24 22:56:24,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 22:56:24,704 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 142 transitions. [2020-09-24 22:56:24,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-24 22:56:24,708 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:24,708 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:24,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 22:56:24,709 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:24,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:24,709 INFO L82 PathProgramCache]: Analyzing trace with hash -2080692744, now seen corresponding path program 1 times [2020-09-24 22:56:24,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:24,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1379134761] [2020-09-24 22:56:24,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:24,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:24,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:24,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 22:56:24,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:24,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 22:56:24,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:24,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:56:24,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-24 22:56:24,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-24 22:56:24,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:56:24,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:24,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:24,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:24,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:24,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:24,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:24,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:24,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:24,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:24,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:24,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:24,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:24,918 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 22:56:24,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1379134761] [2020-09-24 22:56:24,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:24,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 22:56:24,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085143481] [2020-09-24 22:56:24,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 22:56:24,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:24,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 22:56:24,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:56:24,921 INFO L87 Difference]: Start difference. First operand 138 states and 142 transitions. Second operand 6 states. [2020-09-24 22:56:25,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:25,203 INFO L93 Difference]: Finished difference Result 203 states and 211 transitions. [2020-09-24 22:56:25,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 22:56:25,205 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-09-24 22:56:25,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:25,206 INFO L225 Difference]: With dead ends: 203 [2020-09-24 22:56:25,206 INFO L226 Difference]: Without dead ends: 201 [2020-09-24 22:56:25,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:56:25,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-09-24 22:56:25,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 136. [2020-09-24 22:56:25,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-09-24 22:56:25,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 140 transitions. [2020-09-24 22:56:25,216 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 140 transitions. Word has length 60 [2020-09-24 22:56:25,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:25,217 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 140 transitions. [2020-09-24 22:56:25,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 22:56:25,217 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 140 transitions. [2020-09-24 22:56:25,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 22:56:25,218 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:25,218 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:25,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 22:56:25,218 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:25,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:25,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1555133305, now seen corresponding path program 1 times [2020-09-24 22:56:25,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:25,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587751875] [2020-09-24 22:56:25,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:25,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:25,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:25,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:25,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 22:56:25,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:56:25,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-09-24 22:56:25,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:25,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:56:25,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-09-24 22:56:25,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-24 22:56:25,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:56:25,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:25,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:25,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:25,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:25,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:25,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:25,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:25,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:25,790 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 22:56:25,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587751875] [2020-09-24 22:56:25,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:25,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:56:25,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343563189] [2020-09-24 22:56:25,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:56:25,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:25,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:56:25,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:56:25,793 INFO L87 Difference]: Start difference. First operand 136 states and 140 transitions. Second operand 9 states. [2020-09-24 22:56:26,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:26,825 INFO L93 Difference]: Finished difference Result 375 states and 390 transitions. [2020-09-24 22:56:26,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 22:56:26,825 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-09-24 22:56:26,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:26,827 INFO L225 Difference]: With dead ends: 375 [2020-09-24 22:56:26,827 INFO L226 Difference]: Without dead ends: 258 [2020-09-24 22:56:26,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2020-09-24 22:56:26,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-09-24 22:56:26,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 158. [2020-09-24 22:56:26,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-09-24 22:56:26,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 162 transitions. [2020-09-24 22:56:26,839 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 162 transitions. Word has length 69 [2020-09-24 22:56:26,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:26,839 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 162 transitions. [2020-09-24 22:56:26,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:56:26,839 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 162 transitions. [2020-09-24 22:56:26,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-24 22:56:26,840 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:26,840 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:26,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 22:56:26,841 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:26,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:26,841 INFO L82 PathProgramCache]: Analyzing trace with hash -623432219, now seen corresponding path program 1 times [2020-09-24 22:56:26,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:26,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [956748608] [2020-09-24 22:56:26,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:26,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:26,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:26,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:27,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:27,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 22:56:27,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:56:27,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 948 [2020-09-24 22:56:27,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:27,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:56:27,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-24 22:56:27,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 22:56:27,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:56:27,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:27,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:27,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:27,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:27,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:27,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:27,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:27,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:27,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:27,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:27,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:27,954 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 22:56:27,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [956748608] [2020-09-24 22:56:27,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:27,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:56:27,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172995207] [2020-09-24 22:56:27,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:56:27,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:27,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:56:27,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:56:27,957 INFO L87 Difference]: Start difference. First operand 158 states and 162 transitions. Second operand 8 states. [2020-09-24 22:56:28,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:28,640 INFO L93 Difference]: Finished difference Result 259 states and 267 transitions. [2020-09-24 22:56:28,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 22:56:28,641 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-09-24 22:56:28,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:28,643 INFO L225 Difference]: With dead ends: 259 [2020-09-24 22:56:28,643 INFO L226 Difference]: Without dead ends: 257 [2020-09-24 22:56:28,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2020-09-24 22:56:28,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-09-24 22:56:28,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 156. [2020-09-24 22:56:28,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-09-24 22:56:28,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 160 transitions. [2020-09-24 22:56:28,655 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 160 transitions. Word has length 74 [2020-09-24 22:56:28,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:28,655 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 160 transitions. [2020-09-24 22:56:28,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:56:28,656 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 160 transitions. [2020-09-24 22:56:28,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-24 22:56:28,663 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:28,663 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:28,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 22:56:28,664 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:28,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:28,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1977531324, now seen corresponding path program 1 times [2020-09-24 22:56:28,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:28,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1555102238] [2020-09-24 22:56:28,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:28,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:28,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:28,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:56:28,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:28,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-24 22:56:28,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:28,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:56:28,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:56:28,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-24 22:56:28,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:56:28,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:28,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:28,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:28,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:28,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:28,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:28,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:28,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:28,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:28,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:28,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:28,955 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 22:56:28,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1555102238] [2020-09-24 22:56:28,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:28,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:56:28,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267382711] [2020-09-24 22:56:28,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:56:28,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:28,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:56:28,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:56:28,958 INFO L87 Difference]: Start difference. First operand 156 states and 160 transitions. Second operand 8 states. [2020-09-24 22:56:29,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:29,493 INFO L93 Difference]: Finished difference Result 271 states and 282 transitions. [2020-09-24 22:56:29,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 22:56:29,494 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-09-24 22:56:29,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:29,497 INFO L225 Difference]: With dead ends: 271 [2020-09-24 22:56:29,497 INFO L226 Difference]: Without dead ends: 269 [2020-09-24 22:56:29,498 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2020-09-24 22:56:29,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-09-24 22:56:29,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 154. [2020-09-24 22:56:29,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-24 22:56:29,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 158 transitions. [2020-09-24 22:56:29,506 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 158 transitions. Word has length 79 [2020-09-24 22:56:29,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:29,507 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 158 transitions. [2020-09-24 22:56:29,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:56:29,507 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 158 transitions. [2020-09-24 22:56:29,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-24 22:56:29,508 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:29,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:29,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 22:56:29,508 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:29,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:29,509 INFO L82 PathProgramCache]: Analyzing trace with hash 108101264, now seen corresponding path program 1 times [2020-09-24 22:56:29,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:29,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1701546618] [2020-09-24 22:56:29,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:29,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:29,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:29,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:29,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 22:56:29,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:56:29,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-09-24 22:56:29,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:29,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:56:29,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-24 22:56:29,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 22:56:29,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:30,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:30,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:30,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:30,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:30,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:30,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:30,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:30,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:30,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:30,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:30,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:30,054 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 22:56:30,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1701546618] [2020-09-24 22:56:30,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:30,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:56:30,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789994493] [2020-09-24 22:56:30,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:56:30,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:30,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:56:30,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:56:30,057 INFO L87 Difference]: Start difference. First operand 154 states and 158 transitions. Second operand 8 states. [2020-09-24 22:56:30,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:30,380 INFO L93 Difference]: Finished difference Result 267 states and 275 transitions. [2020-09-24 22:56:30,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 22:56:30,381 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-09-24 22:56:30,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:30,383 INFO L225 Difference]: With dead ends: 267 [2020-09-24 22:56:30,383 INFO L226 Difference]: Without dead ends: 265 [2020-09-24 22:56:30,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-09-24 22:56:30,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-24 22:56:30,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 152. [2020-09-24 22:56:30,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-09-24 22:56:30,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 156 transitions. [2020-09-24 22:56:30,399 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 156 transitions. Word has length 84 [2020-09-24 22:56:30,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:30,399 INFO L479 AbstractCegarLoop]: Abstraction has 152 states and 156 transitions. [2020-09-24 22:56:30,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:56:30,399 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 156 transitions. [2020-09-24 22:56:30,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-24 22:56:30,400 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:30,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:30,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 22:56:30,401 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:30,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:30,401 INFO L82 PathProgramCache]: Analyzing trace with hash 274017809, now seen corresponding path program 1 times [2020-09-24 22:56:30,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:30,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [726096843] [2020-09-24 22:56:30,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:30,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:30,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:30,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 22:56:30,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:30,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-09-24 22:56:30,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:30,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:56:30,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:56:30,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 22:56:30,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:30,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:30,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:30,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:30,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:30,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:30,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:30,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:30,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:30,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:30,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:30,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:30,771 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 22:56:30,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [726096843] [2020-09-24 22:56:30,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:30,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:56:30,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809066381] [2020-09-24 22:56:30,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:56:30,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:30,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:56:30,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:56:30,773 INFO L87 Difference]: Start difference. First operand 152 states and 156 transitions. Second operand 9 states. [2020-09-24 22:56:31,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:31,433 INFO L93 Difference]: Finished difference Result 281 states and 292 transitions. [2020-09-24 22:56:31,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 22:56:31,433 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-09-24 22:56:31,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:31,436 INFO L225 Difference]: With dead ends: 281 [2020-09-24 22:56:31,436 INFO L226 Difference]: Without dead ends: 279 [2020-09-24 22:56:31,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-09-24 22:56:31,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-09-24 22:56:31,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 150. [2020-09-24 22:56:31,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-09-24 22:56:31,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 154 transitions. [2020-09-24 22:56:31,460 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 154 transitions. Word has length 93 [2020-09-24 22:56:31,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:31,461 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 154 transitions. [2020-09-24 22:56:31,461 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:56:31,461 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 154 transitions. [2020-09-24 22:56:31,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-09-24 22:56:31,464 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:31,464 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:31,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 22:56:31,468 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:31,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:31,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1620264573, now seen corresponding path program 1 times [2020-09-24 22:56:31,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:31,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1637956792] [2020-09-24 22:56:31,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:31,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:31,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:31,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:32,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:32,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-24 22:56:32,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:56:32,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1299 [2020-09-24 22:56:32,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:32,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:56:32,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-09-24 22:56:32,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 22:56:32,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:32,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:32,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:32,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:32,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:32,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:32,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:32,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:32,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:32,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:32,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:32,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:32,909 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 22:56:32,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1637956792] [2020-09-24 22:56:32,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:32,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:56:32,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967689762] [2020-09-24 22:56:32,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:56:32,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:32,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:56:32,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:56:32,914 INFO L87 Difference]: Start difference. First operand 150 states and 154 transitions. Second operand 8 states. [2020-09-24 22:56:33,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:33,596 INFO L93 Difference]: Finished difference Result 277 states and 285 transitions. [2020-09-24 22:56:33,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 22:56:33,597 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2020-09-24 22:56:33,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:33,597 INFO L225 Difference]: With dead ends: 277 [2020-09-24 22:56:33,597 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 22:56:33,598 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2020-09-24 22:56:33,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 22:56:33,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 22:56:33,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 22:56:33,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 22:56:33,599 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 98 [2020-09-24 22:56:33,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:33,600 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 22:56:33,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:56:33,600 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 22:56:33,600 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 22:56:33,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 22:56:33,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 22:56:34,457 WARN L193 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 96 [2020-09-24 22:56:34,898 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 112 [2020-09-24 22:56:35,150 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 30 [2020-09-24 22:56:35,441 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 39 [2020-09-24 22:56:35,665 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 21 [2020-09-24 22:56:35,694 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 22:56:35,694 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-24 22:56:35,695 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_334~0 |old(~__return_334~0)|) (= ~__return_main~0 |old(~__return_main~0)|)) [2020-09-24 22:56:35,695 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 22:56:35,695 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 22:56:35,695 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 22:56:35,695 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 22:56:35,695 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 22:56:35,696 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-09-24 22:56:35,696 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 22:56:35,696 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-24 22:56:35,696 INFO L268 CegarLoopResult]: For program point L5-3(lines 4 6) no Hoare annotation was computed. [2020-09-24 22:56:35,696 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-09-24 22:56:35,696 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 86) no Hoare annotation was computed. [2020-09-24 22:56:35,697 INFO L268 CegarLoopResult]: For program point L250(line 250) no Hoare annotation was computed. [2020-09-24 22:56:35,697 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 311) no Hoare annotation was computed. [2020-09-24 22:56:35,697 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-09-24 22:56:35,697 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-24 22:56:35,697 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-24 22:56:35,698 INFO L268 CegarLoopResult]: For program point L234(line 234) no Hoare annotation was computed. [2020-09-24 22:56:35,698 INFO L268 CegarLoopResult]: For program point L201(lines 201 271) no Hoare annotation was computed. [2020-09-24 22:56:35,698 INFO L268 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-09-24 22:56:35,699 INFO L268 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-09-24 22:56:35,699 INFO L268 CegarLoopResult]: For program point L36(lines 36 292) no Hoare annotation was computed. [2020-09-24 22:56:35,699 INFO L268 CegarLoopResult]: For program point L251(line 251) no Hoare annotation was computed. [2020-09-24 22:56:35,699 INFO L268 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-09-24 22:56:35,699 INFO L268 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-09-24 22:56:35,699 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-09-24 22:56:35,699 INFO L268 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-09-24 22:56:35,699 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-24 22:56:35,700 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 243) no Hoare annotation was computed. [2020-09-24 22:56:35,700 INFO L268 CegarLoopResult]: For program point L235(line 235) no Hoare annotation was computed. [2020-09-24 22:56:35,700 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-09-24 22:56:35,700 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-24 22:56:35,700 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-24 22:56:35,700 INFO L268 CegarLoopResult]: For program point L252(line 252) no Hoare annotation was computed. [2020-09-24 22:56:35,700 INFO L268 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-09-24 22:56:35,700 INFO L268 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-09-24 22:56:35,700 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-09-24 22:56:35,701 INFO L264 CegarLoopResult]: At program point L302(lines 23 310) the Hoare annotation is: (and (<= 0 main_~main__i~0) (= |old(~__return_334~0)| ~__return_334~0) (<= (+ main_~main__limit~0 4) main_~main__bufsize~0)) [2020-09-24 22:56:35,701 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 311) no Hoare annotation was computed. [2020-09-24 22:56:35,701 INFO L268 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-09-24 22:56:35,701 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 227) no Hoare annotation was computed. [2020-09-24 22:56:35,701 INFO L268 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-09-24 22:56:35,701 INFO L268 CegarLoopResult]: For program point L137(lines 137 281) no Hoare annotation was computed. [2020-09-24 22:56:35,702 INFO L268 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-09-24 22:56:35,702 INFO L268 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-09-24 22:56:35,702 INFO L268 CegarLoopResult]: For program point L253(lines 253 263) no Hoare annotation was computed. [2020-09-24 22:56:35,702 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-09-24 22:56:35,702 INFO L268 CegarLoopResult]: For program point L55(lines 55 284) no Hoare annotation was computed. [2020-09-24 22:56:35,703 INFO L268 CegarLoopResult]: For program point L237(line 237) no Hoare annotation was computed. [2020-09-24 22:56:35,703 INFO L268 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-09-24 22:56:35,703 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 163) no Hoare annotation was computed. [2020-09-24 22:56:35,703 INFO L268 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-09-24 22:56:35,705 INFO L268 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-09-24 22:56:35,705 INFO L268 CegarLoopResult]: For program point L72(lines 72 127) no Hoare annotation was computed. [2020-09-24 22:56:35,705 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-09-24 22:56:35,705 INFO L268 CegarLoopResult]: For program point L221(line 221) no Hoare annotation was computed. [2020-09-24 22:56:35,705 INFO L268 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-09-24 22:56:35,705 INFO L268 CegarLoopResult]: For program point L238(line 238) no Hoare annotation was computed. [2020-09-24 22:56:35,705 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 255) no Hoare annotation was computed. [2020-09-24 22:56:35,705 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-09-24 22:56:35,706 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-24 22:56:35,706 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-24 22:56:35,706 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-24 22:56:35,706 INFO L268 CegarLoopResult]: For program point L255(line 255) no Hoare annotation was computed. [2020-09-24 22:56:35,706 INFO L268 CegarLoopResult]: For program point L222(line 222) no Hoare annotation was computed. [2020-09-24 22:56:35,706 INFO L268 CegarLoopResult]: For program point L189(lines 189 273) no Hoare annotation was computed. [2020-09-24 22:56:35,706 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-24 22:56:35,706 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-24 22:56:35,706 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-24 22:56:35,707 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-24 22:56:35,707 INFO L268 CegarLoopResult]: For program point L239(line 239) no Hoare annotation was computed. [2020-09-24 22:56:35,707 INFO L268 CegarLoopResult]: For program point L173(lines 173 275) no Hoare annotation was computed. [2020-09-24 22:56:35,707 INFO L268 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-09-24 22:56:35,707 INFO L268 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-09-24 22:56:35,707 INFO L268 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-09-24 22:56:35,707 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 191) no Hoare annotation was computed. [2020-09-24 22:56:35,707 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-24 22:56:35,708 INFO L268 CegarLoopResult]: For program point L256(line 256) no Hoare annotation was computed. [2020-09-24 22:56:35,708 INFO L268 CegarLoopResult]: For program point L223(line 223) no Hoare annotation was computed. [2020-09-24 22:56:35,709 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-09-24 22:56:35,709 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-24 22:56:35,709 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-24 22:56:35,709 INFO L268 CegarLoopResult]: For program point L240(line 240) no Hoare annotation was computed. [2020-09-24 22:56:35,709 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-09-24 22:56:35,709 INFO L268 CegarLoopResult]: For program point L108(lines 108 121) no Hoare annotation was computed. [2020-09-24 22:56:35,710 INFO L268 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-09-24 22:56:35,710 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-09-24 22:56:35,710 INFO L268 CegarLoopResult]: For program point L224(line 224) no Hoare annotation was computed. [2020-09-24 22:56:35,710 INFO L268 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-09-24 22:56:35,711 INFO L268 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-09-24 22:56:35,711 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 98) no Hoare annotation was computed. [2020-09-24 22:56:35,712 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-09-24 22:56:35,712 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-24 22:56:35,712 INFO L268 CegarLoopResult]: For program point L307(line 307) no Hoare annotation was computed. [2020-09-24 22:56:35,712 INFO L268 CegarLoopResult]: For program point L241(lines 241 265) no Hoare annotation was computed. [2020-09-24 22:56:35,712 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-09-24 22:56:35,712 INFO L268 CegarLoopResult]: For program point L43(lines 43 286) no Hoare annotation was computed. [2020-09-24 22:56:35,713 INFO L264 CegarLoopResult]: At program point L291(lines 36 292) the Hoare annotation is: (and (<= 0 main_~main__i~0) (<= 0 main_~main__j~0) (< main_~main__i~0 main_~main__len~0) (<= (+ main_~main__j~0 5) main_~main__bufsize~0) (= |old(~__return_334~0)| ~__return_334~0) (<= (+ main_~main__limit~0 4) main_~main__bufsize~0)) [2020-09-24 22:56:35,713 INFO L268 CegarLoopResult]: For program point L225(lines 225 267) no Hoare annotation was computed. [2020-09-24 22:56:35,713 INFO L268 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-09-24 22:56:35,713 INFO L268 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-09-24 22:56:35,713 INFO L268 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-09-24 22:56:35,713 INFO L268 CegarLoopResult]: For program point L308(line 308) no Hoare annotation was computed. [2020-09-24 22:56:35,713 INFO L268 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-09-24 22:56:35,714 INFO L268 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-09-24 22:56:35,714 INFO L268 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-09-24 22:56:35,714 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 203) no Hoare annotation was computed. [2020-09-24 22:56:35,714 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-09-24 22:56:35,714 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-09-24 22:56:35,714 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2020-09-24 22:56:35,714 INFO L268 CegarLoopResult]: For program point L243(line 243) no Hoare annotation was computed. [2020-09-24 22:56:35,715 INFO L268 CegarLoopResult]: For program point L210(line 210) no Hoare annotation was computed. [2020-09-24 22:56:35,715 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-09-24 22:56:35,715 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-09-24 22:56:35,715 INFO L268 CegarLoopResult]: For program point L260(line 260) no Hoare annotation was computed. [2020-09-24 22:56:35,716 INFO L268 CegarLoopResult]: For program point L227(line 227) no Hoare annotation was computed. [2020-09-24 22:56:35,716 INFO L268 CegarLoopResult]: For program point L161(lines 161 277) no Hoare annotation was computed. [2020-09-24 22:56:35,716 INFO L268 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-09-24 22:56:35,716 INFO L268 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-09-24 22:56:35,716 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 110) no Hoare annotation was computed. [2020-09-24 22:56:35,717 INFO L268 CegarLoopResult]: For program point L244(line 244) no Hoare annotation was computed. [2020-09-24 22:56:35,717 INFO L268 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-09-24 22:56:35,717 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-09-24 22:56:35,717 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-24 22:56:35,717 INFO L268 CegarLoopResult]: For program point L261(line 261) no Hoare annotation was computed. [2020-09-24 22:56:35,717 INFO L268 CegarLoopResult]: For program point L228(line 228) no Hoare annotation was computed. [2020-09-24 22:56:35,717 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 45) no Hoare annotation was computed. [2020-09-24 22:56:35,718 INFO L268 CegarLoopResult]: For program point L96(lines 96 123) no Hoare annotation was computed. [2020-09-24 22:56:35,718 INFO L268 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-09-24 22:56:35,718 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-24 22:56:35,718 INFO L268 CegarLoopResult]: For program point L63-1(line 63) no Hoare annotation was computed. [2020-09-24 22:56:35,718 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 311) the Hoare annotation is: (= |old(~__return_334~0)| ~__return_334~0) [2020-09-24 22:56:35,718 INFO L268 CegarLoopResult]: For program point L63-2(line 63) no Hoare annotation was computed. [2020-09-24 22:56:35,719 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-09-24 22:56:35,719 INFO L268 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-09-24 22:56:35,719 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-09-24 22:56:35,719 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-24 22:56:35,721 INFO L264 CegarLoopResult]: At program point L262(lines 29 304) the Hoare annotation is: (let ((.cse2 (<= 0 main_~main__i~0)) (.cse5 (<= 0 main_~main__j~0)) (.cse3 (= |old(~__return_334~0)| ~__return_334~0)) (.cse4 (<= (+ main_~main__limit~0 4) main_~main__bufsize~0))) (or (and (let ((.cse0 (<= (+ main_~main__j~0 4) main_~main__bufsize~0))) (let ((.cse1 (or (and .cse2 .cse0 .cse3 .cse4) (and .cse2 (<= 1 main_~__tmp_13~0) .cse3 .cse4 (<= 1 main_~__VERIFIER_assert__cond~12))))) (or (and .cse0 .cse1) (and (<= 1 main_~__VERIFIER_assert__cond~14) .cse1 (<= 1 main_~__tmp_15~0))))) .cse5) (and .cse2 .cse5 (<= (+ main_~main__i~0 1) main_~main__len~0) .cse3 .cse4))) [2020-09-24 22:56:35,721 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-24 22:56:35,721 INFO L268 CegarLoopResult]: For program point L64(lines 64 283) no Hoare annotation was computed. [2020-09-24 22:56:35,721 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 151) no Hoare annotation was computed. [2020-09-24 22:56:35,721 INFO L268 CegarLoopResult]: For program point L213(lines 213 269) no Hoare annotation was computed. [2020-09-24 22:56:35,722 INFO L268 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-09-24 22:56:35,722 INFO L268 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-09-24 22:56:35,722 INFO L268 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-09-24 22:56:35,722 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 22:56:35,722 INFO L268 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-09-24 22:56:35,722 INFO L268 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-09-24 22:56:35,722 INFO L268 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-09-24 22:56:35,723 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 74) no Hoare annotation was computed. [2020-09-24 22:56:35,723 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-09-24 22:56:35,723 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-24 22:56:35,723 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-24 22:56:35,723 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-24 22:56:35,723 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 22:56:35,723 INFO L268 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-09-24 22:56:35,724 INFO L268 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-09-24 22:56:35,724 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 57) no Hoare annotation was computed. [2020-09-24 22:56:35,724 INFO L268 CegarLoopResult]: For program point L215(line 215) no Hoare annotation was computed. [2020-09-24 22:56:35,724 INFO L268 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-09-24 22:56:35,724 INFO L268 CegarLoopResult]: For program point L149(lines 149 279) no Hoare annotation was computed. [2020-09-24 22:56:35,724 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-09-24 22:56:35,724 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-09-24 22:56:35,724 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-24 22:56:35,725 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-24 22:56:35,725 INFO L268 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed. [2020-09-24 22:56:35,725 INFO L268 CegarLoopResult]: For program point L232(line 232) no Hoare annotation was computed. [2020-09-24 22:56:35,725 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-09-24 22:56:35,725 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-09-24 22:56:35,725 INFO L268 CegarLoopResult]: For program point L34(lines 34 298) no Hoare annotation was computed. [2020-09-24 22:56:35,725 INFO L268 CegarLoopResult]: For program point L249(line 249) no Hoare annotation was computed. [2020-09-24 22:56:35,726 INFO L268 CegarLoopResult]: For program point L216(line 216) no Hoare annotation was computed. [2020-09-24 22:56:35,726 INFO L268 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-09-24 22:56:35,726 INFO L268 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-09-24 22:56:35,726 INFO L268 CegarLoopResult]: For program point L84(lines 84 125) no Hoare annotation was computed. [2020-09-24 22:56:35,726 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-24 22:56:35,726 INFO L268 CegarLoopResult]: For program point L18(lines 18 310) no Hoare annotation was computed. [2020-09-24 22:56:35,726 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 215) no Hoare annotation was computed. [2020-09-24 22:56:35,727 INFO L268 CegarLoopResult]: For program point L233(line 233) no Hoare annotation was computed. [2020-09-24 22:56:35,727 INFO L268 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-09-24 22:56:35,727 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-24 22:56:35,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 10:56:35 BoogieIcfgContainer [2020-09-24 22:56:35,771 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 22:56:35,774 INFO L168 Benchmark]: Toolchain (without parser) took 20434.11 ms. Allocated memory was 140.5 MB in the beginning and 380.1 MB in the end (delta: 239.6 MB). Free memory was 102.3 MB in the beginning and 109.3 MB in the end (delta: -7.1 MB). Peak memory consumption was 232.5 MB. Max. memory is 7.1 GB. [2020-09-24 22:56:35,780 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 22:56:35,780 INFO L168 Benchmark]: CACSL2BoogieTranslator took 454.33 ms. Allocated memory is still 140.5 MB. Free memory was 101.6 MB in the beginning and 89.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2020-09-24 22:56:35,781 INFO L168 Benchmark]: Boogie Preprocessor took 172.22 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 89.5 MB in the beginning and 181.0 MB in the end (delta: -91.6 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-09-24 22:56:35,783 INFO L168 Benchmark]: RCFGBuilder took 641.14 ms. Allocated memory is still 203.9 MB. Free memory was 181.0 MB in the beginning and 150.1 MB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. [2020-09-24 22:56:35,785 INFO L168 Benchmark]: TraceAbstraction took 19155.77 ms. Allocated memory was 203.9 MB in the beginning and 380.1 MB in the end (delta: 176.2 MB). Free memory was 150.1 MB in the beginning and 109.3 MB in the end (delta: 40.8 MB). Peak memory consumption was 216.9 MB. Max. memory is 7.1 GB. [2020-09-24 22:56:35,791 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 454.33 ms. Allocated memory is still 140.5 MB. Free memory was 101.6 MB in the beginning and 89.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 172.22 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 89.5 MB in the beginning and 181.0 MB in the end (delta: -91.6 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 641.14 ms. Allocated memory is still 203.9 MB. Free memory was 181.0 MB in the beginning and 150.1 MB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19155.77 ms. Allocated memory was 203.9 MB in the beginning and 380.1 MB in the end (delta: 176.2 MB). Free memory was 150.1 MB in the beginning and 109.3 MB in the end (delta: 40.8 MB). Peak memory consumption was 216.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 45]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 255]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 151]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 163]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 227]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 175]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 191]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 243]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 215]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 98]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 203]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 74]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 139]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 110]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 86]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 57]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((main__j + 4 <= main__bufsize && ((((0 <= main__i && main__j + 4 <= main__bufsize) && \old(__return_334) == __return_334) && main__limit + 4 <= main__bufsize) || ((((0 <= main__i && 1 <= __tmp_13) && \old(__return_334) == __return_334) && main__limit + 4 <= main__bufsize) && 1 <= __VERIFIER_assert__cond))) || ((1 <= __VERIFIER_assert__cond && ((((0 <= main__i && main__j + 4 <= main__bufsize) && \old(__return_334) == __return_334) && main__limit + 4 <= main__bufsize) || ((((0 <= main__i && 1 <= __tmp_13) && \old(__return_334) == __return_334) && main__limit + 4 <= main__bufsize) && 1 <= __VERIFIER_assert__cond))) && 1 <= __tmp_15)) && 0 <= main__j) || ((((0 <= main__i && 0 <= main__j) && main__i + 1 <= main__len) && \old(__return_334) == __return_334) && main__limit + 4 <= main__bufsize) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((0 <= main__i && 0 <= main__j) && main__i < main__len) && main__j + 5 <= main__bufsize) && \old(__return_334) == __return_334) && main__limit + 4 <= main__bufsize - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (0 <= main__i && \old(__return_334) == __return_334) && main__limit + 4 <= main__bufsize - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 183 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.9s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3198 SDtfs, 8794 SDslu, 444 SDs, 0 SdLazy, 5791 SolverSat, 242 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 257 GetRequests, 68 SyntacticMatches, 3 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 1389 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 18 NumberOfFragments, 158 HoareAnnotationTreeSize, 7 FomulaSimplifications, 329838837 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 10040 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 922 NumberOfCodeBlocks, 922 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 906 ConstructedInterpolants, 0 QuantifiedInterpolants, 169854 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...